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1. Novel Catalyst Composites of Ni- and Co-Based Nanoparticles Supported on Inorganic Oxides for Fatty Acid Hydrogenations

Author

Ekaterina Mamontova, Corine Trabbia, Isabelle Favier, Alejandro Serrano-Maldonado, Jean-Bernard Ledeuil, Lénaïc Madec, Montserrat Gómez, and Daniel Pla

Subjects
nickel-based nanoparticles, magnesium aluminum oxide spinel, titanium dioxide anatase, C=C bonds hydrogenation, fatty acids, valorization, Chemistry, QD1-999
Abstract

In the quest to develop nanometrically defined catalytic systems for applications in the catalytic valorization of agri-food wastes, small Ni-based nanoparticles supported on inorganic solid supports have been prepared by decomposition of organometallic precursors in refluxing ethanol under H2 atmosphere, in the presence of supports exhibiting insulating or semi-conductor properties, such as MgAl2O4 and TiO2, respectively. The efficiency of the as-prepared Ni-based nanocomposites has been evaluated towards the hydrogenation of unsaturated fatty acids under solvent-free conditions, with high selectivity regarding the hydrogenation of C=C bonds. The influence of the support on the catalytic performance of the prepared Ni-based nanocomposites is particularly highlighted.

Published
2023
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2. Heat Release Kinetics upon Water Vapor Sorption Using Cation-Exchanged Zeolites and Prussian Blue Analogues as Adsorbents: Application to Short-Term Low-Temperature Thermochemical Storage of Energy

Author

Salma Benzaria, Ekaterina Mamontova, Yannick Guari, Joulia Larionova, Jérôme Long, Philippe Trens, Fabrice Salles, and Jerzy Zajac

Subjects
short-term thermochemical heat storage, water vapor adsorption, porous adsorbents, cation-exchanged zeolites, Prussian blue analogues, integral heat of adsorption, Technology
Abstract

In view of potential uses in short-term thermochemical heat storage by sorption of water vapor, the capacity to release a sufficient heat amount at the appropriate rate of a Prussian blue analogue (PBA) containing hexacyanocobaltate vacancies has been compared with those of 13X type zeolites possessing Na+, Ce3+, Ce4+, or Tb3+ extra-framework compensating cations. The extended structural and surface characterization demonstrated good reproducibility of the preparation procedures performed on a 10-g scale. The adsorbents were tested under dynamic conditions of gas flow with the aid of either a gas flow calorimeter (120 mL h−1 helium flow) to measure the amount and rate of the integral heat release or a laboratory-scale test rig (15,000 to 22,800 mL h−1 nitrogen flow) to monitor the outlet temperature of nitrogen heated by adsorption. For a regeneration temperature of 353 K and a partial H2O pressure of 2.8 kPa in helium, the PBA sample yielded an integral heat ranging between 900 and 1020 kJ kg−1 with a very slow heat release lasting for even 12–14 h. The zeolite-based materials generated between 350 and 950 kJ kg−1 more rapidly (up to 6–7 h), depending on the nature and the content of compensating cations, as well as on the dehydration state achieved during regeneration. With the laboratory-scale test rig, the efficiency of heat extraction by convection was about 65% for Na-13X and only 38% for PBA, and it diminished with decreasing flow rate.

Published
2021
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3. Post-synthetic modification of Prussian blue type nanoparticles: tailoring the chemical and physical properties

Author

Ekaterina Mamontova, Fabrice Salles, Yannick Guari, Joulia Larionova, and Jérôme Long

Subjects
Inorganic Chemistry
Abstract

This review focuses on recent advances in the post-synthetic modification of nano-sized Prussian blue and its analogues and compares them with the current strategies used in metal–organic frameworks to give future outlooks in this field.

Published
2022
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4. Designing heterostructured core@satellite Prussian Blue Analogue@Au–Ag nanoparticles: Effect on the magnetic properties and catalytic activity

Author

Erwan Oliviero, María Rodríguez-Castillo, Miguel Monge, Ekaterina Mamontova, Joulia Larionova, Yannick Guari, Jérôme Long, Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM ICMMM), and Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Chimie du CNRS (INC)

Subjects
Prussian blue, Materials science, education, Nanoparticle, Heterojunction, 02 engineering and technology, equipment and supplies, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, 0104 chemical sciences, Catalysis, Inorganic Chemistry, Core (optical fiber), Crystallography, chemistry.chemical_compound, Adsorption, Ferromagnetism, chemistry, [CHIM]Chemical Sciences, 0210 nano-technology, human activities, Bimetallic strip, health care economics and organizations
Abstract

We report in this article new magneto-plasmonic core@satellite Prussian Blue Analogue (PBA)@Au-Ag nanoheterostructures obtained by post-synthetic adsorption of a bimetallic [AuI2AgI2(C6F5)4(OEt2)2]n molecular complex with ferromagnetic K+/Ni2+/[Cr(CN)6]3- PBA nanoparticles. While the size, shape and structural integrity of the PBA nanoparticles are preserved upon the formation of the core@satellite heterostructures, a dramatic change in the magnetic properties is observed due to the presence of ultrasmall gold-silver nanosatellites. Moreover, the nanoarchitectures behave also as multicatalysts towards the reduction of 4-nitrophenol with enhanced activity as compared to the pristine K+/Ni2+/[Cr(CN)6]3- PBA. Remarkably, these performances are found to be heightened upon light irradiation due to a plasmon-assisted catalytic effect. Such original PBA core@Au-Ag satellite architectures constitute a rare example in which an interplay between the two constituting materials leads to a reshaping of the magnetic and catalytic features.

Published
2021
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5. Organometallic interactions between metal nanoparticles and carbon-based molecules: A surface reactivity rationale

Author

Ekaterina Mamontova, Isabelle Favier, Daniel Pla, Montserrat Gómez, Laboratoire Hétérochimie Fondamentale et Appliquée (LHFA), Institut de Chimie de Toulouse (ICT), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS), and Pedro J. Pérez

Subjects
[CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistry, Surface reactivity, Mechanistic insights, C-C couplings, Metal-based nanoparticles, [CHIM.CATA]Chemical Sciences/Catalysis, C-heteroatom couplings
Abstract

International audience; Metal-based nanoparticles (MNPs) have been widely used as catalysts in different types of chemical transformations, taking advantage of their intrinsic properties, such as geometry, specific surface area, sites (edges, corners, faces, kinks, steps…) and electronic configuration, which offer a wide-ranging variety of interactions with the reagents and products of catalytic processes. In addition, both the nature of the metal and the support (often MNPs are supported on solids or immobilized in liquid phases) play a crucial role in their catalytic behavior and plausible recycling. Nevertheless, research works reporting on the organometallic interactions at the metal surface are much more limited, often due to the difficulty of accessing to convenient experimental techniques. In this contribution, an overview from an organometallic point of view is presented regarding the interactions of organic compounds (reactants or products) at the surface of metal nanoparticles based on experimental data and calculations, helping to establish structure-reactivity correlations.

Published
2022
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6. Synthesis, structure, magnetic and luminescence properties of two dysprosium single-molecule magnets based on phenoxide dye ligands

Author

Jérôme Long, Alexander A. Trifonov, Joulia Larionova, Alexander N. Selikhov, Ekaterina Mamontova, Konstantin A. Lyssenko, Yannick Guari, Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM ICMMM), Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Chimie du CNRS (INC), G. A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences [Moscow] (RAS), and A. N. Nesmeyanov Institute of Organoelement Compounds (INEOS)

Subjects
Materials science, 010405 organic chemistry, Relaxation (NMR), chemistry.chemical_element, General Chemistry, 010402 general chemistry, Condensed Matter Physics, 01 natural sciences, 0104 chemical sciences, 3. Good health, chemistry.chemical_compound, Crystallography, Magnetization, chemistry, Magnet, Pyridine, Dysprosium, Molecule, [CHIM.COOR]Chemical Sciences/Coordination chemistry, General Materials Science, Homoleptic, Luminescence
Abstract

International audience; We report here two dysprosium complexes based on phenoxidebased emissive ligands 1-(2,4-dimetylphenylazo)-2-naphtholate (L1) and anthracenolate (L2). While 1 is a dinuclear homoleptic complex [Dy 2 (L1) 6 ]•2C 7 H 8 exhibiting a zero-field slow relaxation of the magnetization, 2 is a mononuclear complex [Dy(L2) 3 (py) 3 ] (py = pyridine) showing a field-induced relaxation.

Published
2020
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7. Room temperature magnetoelectric coupling in a molecular ferroelectric ytterbium(III) complex

Author

Mickael Beaudhuin, Dominique Granier, Ekaterina Mamontova, Jérôme Rouquette, Luís D. Carlos, Jérôme Long, Joulia Larionova, José A. Paixão, Bruno Donnadieu, Rute A. S. Ferreira, Marta S. C. Henriques, Yannick Guari, M. S. Ivanov, Jean-Marc Thibaud, V. A. Khomchenko, Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM ICMMM), Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Chimie du CNRS (INC), Universidade de Coimbra [Coimbra], Department of Physics and CICECO, Universidade de Aveiro, and Departemento de Fisica and CICECO

Subjects
Ytterbium, chemistry.chemical_classification, Lanthanide, Multidisciplinary, Spintronics, Condensed matter physics, chemistry.chemical_element, Magnetostriction, 02 engineering and technology, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, Ferroelectricity, 0104 chemical sciences, Coordination complex, Paramagnetism, chemistry, Phase (matter), [CHIM.COOR]Chemical Sciences/Coordination chemistry, 0210 nano-technology
Abstract

Major-league magnetostriction Magnetoelectric materials polarize in response to either electric or magnetic fields, making them attractive for data-storage applications. Long et al. discovered a ytterbium-based molecular magnetoelectric material with high magnetoelectric coupling (see the Perspective by Zhou and Han). An applied magnetic field strains the material, which changes its electrical properties. The required field is much lower than other magnetoelectric materials, and this work highlights the potential for using molecular materials in devices. Science , this issue p. 671 ; see also p. 627

Published
2021
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8. Heat Release Kinetics upon Water Vapor Sorption Using Cation-Exchanged Zeolites and Prussian Blue Analogues as Adsorbents: Application to Short-Term Low-Temperature Thermochemical Storage of Energy

Author

Joulia Larionova, Fabrice Salles, Salma Benzaria, Jerzy Zajac, Jérôme Long, Philippe Trens, Ekaterina Mamontova, Yannick Guari, Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM ICMMM), and Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Chimie du CNRS (INC)

Subjects
Technology, Control and Optimization, Materials science, 020209 energy, Energy Engineering and Power Technology, 02 engineering and technology, water vapor adsorption, integral heat of adsorption, Thermal energy storage, cation-exchanged zeolites, 7. Clean energy, chemistry.chemical_compound, Adsorption, 0202 electrical engineering, electronic engineering, information engineering, Electrical and Electronic Engineering, Zeolite, Engineering (miscellaneous), Prussian blue, Renewable Energy, Sustainability and the Environment, Sorption, [CHIM.MATE]Chemical Sciences/Material chemistry, short-term thermochemical heat storage, 021001 nanoscience & nanotechnology, Volumetric flow rate, Calorimeter, Prussian blue analogues, chemistry, Chemical engineering, porous adsorbents, heat release kinetics, 0210 nano-technology, Water vapor, Energy (miscellaneous)
Abstract

In view of potential uses in short-term thermochemical heat storage by sorption of water vapor, the capacity to release a sufficient heat amount at the appropriate rate of a Prussian blue analogue (PBA) containing hexacyanocobaltate vacancies has been compared with those of 13X type zeolites possessing Na+, Ce3+, Ce4+, or Tb3+ extra-framework compensating cations. The extended structural and surface characterization demonstrated good reproducibility of the preparation procedures performed on a 10-g scale. The adsorbents were tested under dynamic conditions of gas flow with the aid of either a gas flow calorimeter (120 mL h−1 helium flow) to measure the amount and rate of the integral heat release or a laboratory-scale test rig (15,000 to 22,800 mL h−1 nitrogen flow) to monitor the outlet temperature of nitrogen heated by adsorption. For a regeneration temperature of 353 K and a partial H2O pressure of 2.8 kPa in helium, the PBA sample yielded an integral heat ranging between 900 and 1020 kJ kg−1 with a very slow heat release lasting for even 12–14 h. The zeolite-based materials generated between 350 and 950 kJ kg−1 more rapidly (up to 6–7 h), depending on the nature and the content of compensating cations, as well as on the dehydration state achieved during regeneration. With the laboratory-scale test rig, the efficiency of heat extraction by convection was about 65% for Na-13X and only 38% for PBA, and it diminished with decreasing flow rate.

Published
2021
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9. New Luminescent Tetranuclear Lanthanide-Based Silsesquioxane Cage-Like Architectures

Author

Jérôme Long, Joulia Larionova, Elena S. Shubina, Alexey N. Bilyachenko, Mikhail M. Levitsky, Gautier Félix, Victor N. Khrustalev, Ekaterina Mamontova, Alena N. Kulakova, Yannick Guari, A. N. Nesmeyanov Institute of Organoelement Compounds (INEOS), Russian Academy of Sciences [Moscow] (RAS), Peoples’ Friendship University of Russia, Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM ICMMM), Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Chimie du CNRS (INC), and ND Zelinsky Institute of Organic Chemistry [Moscow, Russia]

Subjects
Lanthanide, 010405 organic chemistry, Organic Chemistry, chemistry.chemical_element, Terbium, General Chemistry, 010402 general chemistry, 01 natural sciences, Catalysis, Silsesquioxane, 3. Good health, 0104 chemical sciences, Crystallography, chemistry.chemical_compound, chemistry, [CHIM]Chemical Sciences, [CHIM.COOR]Chemical Sciences/Coordination chemistry, Europium, Luminescence, Cage
Abstract

International audience; We report on the synthesis, structure, magnetic and luminescence properties investigations of four new cagelike lanthanide-based silsesquioxanes (Cat)2[(PhSiO1.5)8(LnO1.5)4(O)(NO2.5)6(EtOH)2(MeCN)2] (where Cat + = Et4N + , PPh4P + and Ln 3+ = Eu 3+ Tb 3+ and (Ph4P)4[(PhSiO1.5)8(TbO1.5)4(O)2(NO2.5)8]•10MeCN. They present an unusual prism-like topology of cage architectures and lanthanide-characteristic emission, which makes them the first luminescent cage-like lanthanide silsesquioxanes. One of the Tb 3+-based cages presents a magnetic spin-flip transition.

Published
2020
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10. Synthesis, Structure, Magnetic and Photoluminescent Properties of Dysprosium(III) Schiff Base Single-Molecule Magnets: Investigation of the Relaxation of the Magnetization

Author

Jérôme Long, Joulia Larionova, Ivan V. Basalov, Alexander A. Trifonov, Yannick Guari, Ekaterina Mamontova, Anton V. Cherkasov, Konstantin A. Lyssenko, Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM ICMMM), Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Chimie du CNRS (INC), G. A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences [Moscow] (RAS), A. N. Nesmeyanov Institute of Organoelement Compounds (INEOS), and Russian Acad Sci, GA Razunaev Inst Organomet Chem

Subjects
Lanthanide, Schiff base, 010405 organic chemistry, Ligand, Organic Chemistry, Relaxation (NMR), Substituent, chemistry.chemical_element, General Chemistry, 010402 general chemistry, 01 natural sciences, Biochemistry, 3. Good health, 0104 chemical sciences, Magnetization, chemistry.chemical_compound, Crystallography, chemistry, Dysprosium, [CHIM.COOR]Chemical Sciences/Coordination chemistry, Bifunctional
Abstract

International audience; We report here the synthesis, structure, magnetic and photoluminescence properties of three new bifunctional Schiff-base complexes [Dy(L1)2(py)2][B(Ph)4]•py (1), [Dy(L1)2Cl(DME)]•0.5DME (2) and [Dy(L2)2Cl]•2.5(C7H8) (3) (HL1 = Phenol, 2,4-bis(1,1dimethylethyl)-6-[[(2-methoxy-5-methylphenyl)imino]methyl]; HL2 = Phenol, 2,4-bis(1,1-dimethylethyl)-6-[[(2-methoxyphenyl)imino] methyl]). The coordination environment of the Dy 3+ ion and the direction of the anisotropic axis may be controlled by the combination of the substituent groups of the Schiff bases, the nature of the counter-ions (Cl  vs. BPh4 ) and the coordinative solvent molecules. A zero-field slow relaxation of the magnetization is evidenced for all complexes but strong differences in the relaxation dynamics are observed depending on the Dy 3+ site geometry. In this sense, complex 1 exhibits an anisotropic barrier of 472 cm 1 , which may be favourably compared to other related examples due to the shortening of the Dy-O bond in the axial direction. Besides, the three complexes exhibit a ligand-based luminescence making them as bifunctional magneto-luminescent systems.

Published
2020
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11. Single-molecule magnet behaviour in a Dy(<scp>iii</scp>) pentagonal bipyramidal complex with a quasi-linear Cl–Dy–Cl sequence

Author

Jérôme Long, Konstantin A. Lyssenko, Joulia Larionova, Yannick Guari, Ekaterina Mamontova, Alexander N. Selikhov, Alexander A. Trifonov, Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM ICMMM), Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Chimie du CNRS (INC), G. A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences [Moscow] (RAS), and A. N. Nesmeyanov Institute of Organoelement Compounds (INEOS)

Subjects
Materials science, 010405 organic chemistry, Relaxation (NMR), chemistry.chemical_element, Sequence (biology), 010402 general chemistry, 01 natural sciences, 0104 chemical sciences, 3. Good health, Inorganic Chemistry, Magnetization, Crystallography, Pentagonal bipyramidal molecular geometry, chemistry, Dysprosium, [CHIM.COOR]Chemical Sciences/Coordination chemistry, Quasi linear, Single-molecule magnet, Luminescence
Abstract

International audience; We report the synthesis and magnetic investigation of a dysprosium pentagonal bipyramidal complex [Dy(THF)5Cl2][BPh4] (1) exhibiting a linear Cl–Dy–Cl sequence suitable for providing a coordination environment allowing a zero-field slow relaxation of the magnetization. Besides, the complex also shows dual luminescence originating from [BPh4]− and Dy3+.

Published
2019
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12. Single-molecule magnet behavior in luminescent carbazolyl Dy(iii) octahedral complexes with a quasi linear N

Author

Yannick Guari, Konstantin A. Lyssenko, Jérôme Long, Joulia Larionova, Alexander N. Selikhov, Alexander A. Trifonov, Ekaterina Mamontova, Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM ICMMM), Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Chimie du CNRS (INC), G. A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences [Moscow] (RAS), and A. N. Nesmeyanov Institute of Organoelement Compounds (INEOS)

Subjects
Materials science, Photoluminescence, 010405 organic chemistry, chemistry.chemical_element, 010402 general chemistry, 01 natural sciences, 3. Good health, 0104 chemical sciences, Inorganic Chemistry, chemistry.chemical_compound, Crystallography, Magnetization, chemistry, Octahedron, Pyridine, Dysprosium, Relaxation (physics), Single-molecule magnet, [CHIM.COOR]Chemical Sciences/Coordination chemistry, Tetrahydrofuran, ComputingMilieux_MISCELLANEOUS
Abstract

We report the synthesis, photoluminescence and magnetic properties of two octahedral dysprosium complexes [DyR2(py)4][BPh4]·2py (1) and [DyR2(THF)4][BPh4] (2) (R = carbazolyl, py = pyridine, THF = tetrahydrofuran) exhibiting a quasi linear N-Dy-N angle in the axial direction, suitable for providing a coordination environment allowing the zero-field slow relaxation of magnetization.

Published
2020
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13. Fashioning Prussian Blue Nanoparticles by Adsorption of Luminophores: Synthesis, Properties, and

Author

Ekaterina, Mamontova, Morgane, Daurat, Jérôme, Long, Anastasia, Godefroy, Fabrice, Salles, Yannick, Guari, Magali, Gary-Bobo, and Joulia, Larionova

Subjects
Anthracenes, Microscopy, Fluorescence, Rhodamines, Cell Line, Tumor, Humans, Nanoparticles, Adsorption, Ferrocyanides, Fluorescent Dyes
Abstract

We report the postsynthetic functionalization of Prussian blue (PB) nanoparticles by two different luminophores (2-aminoanthracene and rhodamine B). We show that the photoluminescence properties of the fluorophores are modified by a confinement effect upon adsorption and demonstrate that such multifunctional nanosized systems could be used for in vitro imaging.

Published
2020

14. Dysprosium Single-Molecule Magnets with Bulky Schiff Base Ligands: Modification of the Slow Relaxation of the Magnetization by Substituent Change

Author

Liviu F. Chibotaru, Ekaterina Mamontova, Yannick Guari, Anton V. Cherkasov, Konstantin A. Lyssenko, Jérôme Long, Natalia V. Forosenko, Alexander A. Trifonov, Joulia Larionova, Marko Damjanović, Ivan V. Basalov, Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM ICMMM), Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Chimie du CNRS (INC), G. A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences [Moscow] (RAS), A. N. Nesmeyanov Institute of Organoelement Compounds (INEOS), Institute for Nanoscale Physics and Chemistry (INPAC), Université Catholique de Louvain = Catholic University of Louvain (UCL), Chimie moléculaire et organisation du solide (CMOS), and Université Montpellier 2 - Sciences et Techniques (UM2)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Lanthanide, Schiff base, 010405 organic chemistry, Organic Chemistry, Relaxation (NMR), Substituent, chemistry.chemical_element, General Chemistry, 010402 general chemistry, 01 natural sciences, Catalysis, 0104 chemical sciences, 3. Good health, chemistry.chemical_compound, Magnetization, Crystallography, chemistry, Dysprosium, Molecule, [CHIM.COOR]Chemical Sciences/Coordination chemistry, Bifunctional
Abstract

International audience; We report the synthesis, magnetic and photoluminescence investigations of two bifunctional dysprosium complexes based on tridentate Schiff base ligands. Magnetic investigations reveal a genuine Single-Molecule Magnet (SMM) behavior with out-of-phase signals up to 60 K, and the tunable emission arising from the Schiff base ligands.

Published
2018
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16. Synchronous Temperature and Magnetic Field Dual‐Sensing by Luminescence in a Dysprosium Single‐Molecule Magnet

Author

Victor Moshchalkov, Luís D. Carlos, Liviu F. Chibotaru, Alexandre M. P. Botas, Jérôme Long, Mikhail V. Shestakov, Rute A. S. Ferreira, Yannick Guari, Ekaterina Mamontova, Dominique Luneau, Johan Vanacken, Joulia Larionova, Paulo André, Universidade de Aveiro, Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM ICMMM), Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Chimie du CNRS (INC), Catholic University of Leuven - Katholieke Universiteit Leuven (KU Leuven), Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon

Subjects
Materials science, business.industry, chemistry.chemical_element, 02 engineering and technology, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, Atomic and Molecular Physics, and Optics, 0104 chemical sciences, Electronic, Optical and Magnetic Materials, Dual (category theory), Magnetic field, chemistry, Dysprosium, Optoelectronics, [CHIM.COOR]Chemical Sciences/Coordination chemistry, Single-molecule magnet, 0210 nano-technology, Luminescence, business, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2021
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17. Fashioning Prussian Blue Nanoparticles by Adsorption of Luminophores: Synthesis, Properties, and in Vitro Imaging

Author

Morgane Daurat, Yannick Guari, Anastasia Godefroy, Fabrice Salles, Jérôme Long, Magali Gary-Bobo, Ekaterina Mamontova, Joulia Larionova, Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM ICMMM), Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Chimie du CNRS (INC), Institut des Biomolécules Max Mousseron [Pôle Chimie Balard] (IBMM), Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Institut de Chimie du CNRS (INC)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), and Nanomedsyn

Subjects
Prussian blue, Fluorophore, 010405 organic chemistry, Nanoparticle, 010402 general chemistry, Photochemistry, 01 natural sciences, Fluorescence, 0104 chemical sciences, Inorganic Chemistry, chemistry.chemical_compound, Adsorption, chemistry, Rhodamine B, Luminophore, Surface modification, [CHIM.COOR]Chemical Sciences/Coordination chemistry, Physical and Theoretical Chemistry
Abstract

International audience; We report the post-synthetic functionalization of Prussian blue (PB) nanoparticles by two different luminophores (2-aminoanthracene and rhodamine B). We show that the photoluminescence properties of the fluorophores are modified by a confinement effect upon adsorption and demonstrate that such multifunctional nanosized systems could be used for in vitro imaging.

Published
2020
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19. Front Cover: New Luminescent Tetranuclear Lanthanide‐Based Silsesquioxane Cage‐Like Architectures (Chem. Eur. J. 70/2020)

Author

Joulia Larionova, Yannick Guari, Elena S. Shubina, Alena N. Kulakova, Gautier Félix, Victor N. Khrustalev, Jérôme Long, Alexey N. Bilyachenko, Mikhail M. Levitsky, and Ekaterina Mamontova

Subjects
Lanthanide, Organic Chemistry, chemistry.chemical_element, Terbium, General Chemistry, Catalysis, Silsesquioxane, chemistry.chemical_compound, Front cover, chemistry, Polymer chemistry, Europium, Luminescence, Cage
Published
2020
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20. Gold@Prussian blue analogue core–shell nanoheterostructures: their optical and magnetic properties

Author

Guillaume Maurin-Pasturel, Jérôme Long, Jean-Charles Dupin, Joachim Allouche, Yannick Guari, Maria A. Palacios, Joulia Larionova, Ekaterina Mamontova, Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM ICMMM), Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Institut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux (IPREM), Université de Pau et des Pays de l'Adour (UPPA)-Centre National de la Recherche Scientifique (CNRS), ANR-10-LABX-0005/10-LABX-0005,CheMISyst,CHEmistry of Molecular and Interfacial Systems(2010), Institut Pluridisciplinaire de Recherche sur l'Environnement et les Matériaux (IPREM), Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2), and Centre National de la Recherche Scientifique (CNRS)-Université de Pau et des Pays de l'Adour (UPPA)

Subjects
Prussian blue, Materials science, 010405 organic chemistry, Shell (structure), [CHIM.MATE]Chemical Sciences/Material chemistry, [CHIM.INOR]Chemical Sciences/Inorganic chemistry, 010402 general chemistry, 01 natural sciences, 0104 chemical sciences, Inorganic Chemistry, Core shell, [CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistry, chemistry.chemical_compound, Crystallography, [CHIM.POLY]Chemical Sciences/Polymers, chemistry, [CHIM.ANAL]Chemical Sciences/Analytical chemistry, Surface plasmon resonance, [CHIM.OTHE]Chemical Sciences/Other
Abstract

International audience; Au@Prussian-Blue Analogue (PBA) shell nanoheterostructures are multifunctional nano-objects combining optical properties (surface plasmon resonance) of the Au core and magnetic properties of the PBA shell. We report in this article a series of new Au core@PBA shell nano-objects with different PBA shells: Au@K/Co/[FeII(CN)6] (2) and Au@K/Ni/[CrIII(CN)6]:[FeII(CN)6] (3) single PBA shell, as well as Au@K/Ni/[FeII(CN)6]@K/Ni/[FeIII(CN)6] (4) double PBA shell and Au@K/Ni/[FeII(CN)6]@K/Ni/[FeIII(CN)6]@K/Ni/[CrIII(CN)6] (5) triple PBA shell systems. The position and intensity of the Au SPR band, as well as the magnetic behaviour of the nanoheterostructures, are strongly affected by the shell composition and its thickness.

Published
2019
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21. Making Prussian blue analogues nanoparticles luminescent: effect of the luminophore confinement over the properties

Author

Jérôme Long, Luís D. Carlos, Yannick Guari, Alexandre M. P. Botas, Fabrice Salles, Ekaterina Mamontova, Joulia Larionova, Rute A. S. Ferreira, Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM ICMMM), Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Chimie du CNRS (INC), Department of Physics and CICECO, Universidade de Aveiro, CENIMAT/I3N, Departemento de Ciencia dos Materiais, Universidade Nova de Lisboa = NOVA University Lisbon (NOVA)-Universidade Nova de Lisboa = NOVA University Lisbon (NOVA)-Faculdade de Ciências e Tecnologia = School of Science & Technology (FCT NOVA), and Universidade Nova de Lisboa = NOVA University Lisbon (NOVA)

Subjects
Prussian blue, Photoluminescence, Materials science, Fluorophore, Nanoparticle, 02 engineering and technology, 010402 general chemistry, 021001 nanoscience & nanotechnology, Photochemistry, 01 natural sciences, 0104 chemical sciences, 3. Good health, chemistry.chemical_compound, Adsorption, chemistry, Yield (chemistry), Luminophore, General Materials Science, [CHIM.COOR]Chemical Sciences/Coordination chemistry, 0210 nano-technology, Bifunctional, ComputingMilieux_MISCELLANEOUS
Abstract

In this communication, we report the post-synthetic functionalization of K+/Ni2+/[Cr(CN)6]3- Prussian blue analogue (PBA) nanoparticles by the 2-aminoanthracene luminophore to yield a bifunctional magneto-luminescent nanosystem. The photoluminescence properties of the fluorophore are found modified by the confinement effect upon adsorption, while the magnetic behavior of PBA is preserved.

Published
2019
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22. Prussian Blue Analogues for the Separation of Hydrocarbons in Humid Conditions

Author

Jérôme Long, Joulia Larionova, Yannick Guari, Ekaterina Mamontova, Philippe Trens, Lotfi Boudjema, Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM ICMMM), Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Chimie du CNRS (INC), Institut Parisien de Chimie Moléculaire (IPCM), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Chimie moléculaire et organisation du solide (CMOS), Université Montpellier 2 - Sciences et Techniques (UM2)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Matériaux Catalytiques et Catalyse en Chimie Organique (LMCCCO), and Université Montpellier 1 (UM1)-Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Prussian blue, Inorganic chemistry, food and beverages, 02 engineering and technology, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, 0104 chemical sciences, Inorganic Chemistry, chemistry.chemical_compound, Adsorption, chemistry, [CHIM.COOR]Chemical Sciences/Coordination chemistry, Physical and Theoretical Chemistry, 0210 nano-technology, Water vapor, ComputingMilieux_MISCELLANEOUS
Abstract

The relative affinity of a series of Prussian Blue analogues presenting various chemical compositions for the adsorption of different gases, such as water vapor and hydrocarbons, was studied. The ability of Co[CoIII(CN)6]0.66·5.2H2O for the separation of hydrocarbons in a humid atmosphere was demonstrated.

Published
2017
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23. Magneto-Luminescence Correlation in the Textbook Dysprosium(III) Nitrate Single-Ion Magnet

Author

Luís D. Carlos, Alexandre M. P. Botas, Jérôme Long, Yannick Guari, Joulia Larionova, Rute A. S. Ferreira, Ekaterina Mamontova, Dominique Luneau, Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM ICMMM), Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Chimie du CNRS (INC), Department of Physics and CICECO, Universidade de Aveiro, CENIMAT/I3N, Departemento de Ciencia dos Materiais, Universidade Nova de Lisboa = NOVA University Lisbon (NOVA)-Universidade Nova de Lisboa = NOVA University Lisbon (NOVA)-Faculdade de Ciências e Tecnologia = School of Science & Technology (FCT NOVA), Universidade Nova de Lisboa = NOVA University Lisbon (NOVA), Laboratoire des Multimatériaux et Interfaces (LMI), Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)

Subjects
SPIN-LATTICE-RELAXATION, MOLECULE MAGNETS, Analytical chemistry, chemistry.chemical_element, magnetic relaxation, 010402 general chemistry, 01 natural sciences, Molecular physics, Ion, Materials Chemistry, luminescence, Single-molecule magnet, lanthanides, [CHIM.COOR]Chemical Sciences/Coordination chemistry, Emission spectrum, Magneto, single-ion magnets, single-molecule magnet, ANISOTROPY, COMPLEX, 010405 organic chemistry, SMM, 0104 chemical sciences, Electronic, Optical and Magnetic Materials, chemistry, Chemistry (miscellaneous), Magnet, LUMINESCENCE, Dysprosium, Luminescence, Single crystal, BEHAVIOR
Abstract

International audience; Multifunctional Single-Molecule Magnets (SMMs) or Single-Ion Magnets (SIMs) are intriguing molecule-based materials presenting an association of the slow magnetic relaxation with other physical properties. In this article, we present an example of a very simple molecule based on Dy 3+ ion exhibiting a field induced SIM property and a characteristic Dy 3+ based emission. The [Dy(NO 3) 3 (H 2 O) 4 ]•2H 2 O (1) complex is characterized by the means of single crystal X-Ray diffraction and their magnetic and photo-luminescent properties are investigated. We demonstrate here that it is possible to correlate the magnetic and luminescent properties and to obtain the Orbach barrier from the low temperature emission spectra, which is often difficult to properly extract from the magnetic measurements, especially in the case of field induced SIMs.

Published
2016
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24. Study of the influence of magnetic dilution over relaxation processes in a Zn/Dy single-ion magnet by correlation between luminescence and magnetism

Author

Jérôme Long, Luís D. Carlos, Rute A. S. Ferreira, Dominique Luneau, Liviu F. Chibotaru, Joulia Larionova, Veacheslav Vieru, Gautier Félix, Ekaterina Mamontova, Yannick Guari, Vania T. Freitas, Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM ICMMM), Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Chimie du CNRS (INC), Universidade de Aveiro, Laboratoire des Multimatériaux et Interfaces (LMI), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Institute for Nanoscale Physics and Chemistry (INPAC), Université Catholique de Louvain = Catholic University of Louvain (UCL), Division of Quantum and Chemistry, Catholic University of Leuven - Katholieke Universiteit Leuven (KU Leuven), and Department of Physics and CICECO

Subjects
Magnetism, General Chemical Engineering, SPIN-LATTICE-RELAXATION, MOLECULE MAGNETS, SLOW RELAXATION, URANIUM(III) COMPLEXES, MONONUCLEAR DYSPROSIUM COMPLEX, 010402 general chemistry, 01 natural sciences, Magnetization, Ab initio quantum chemistry methods, LANTHANIDE COMPLEXES, [CHIM.COOR]Chemical Sciences/Coordination chemistry, Spectroscopy, Quantum tunnelling, ANISOTROPY, Condensed matter physics, 010405 organic chemistry, Chemistry, Relaxation (NMR), SMM BEHAVIOR, General Chemistry, 0104 chemical sciences, 2ND EXCITED-STATE, Magnet, Luminescence, ENERGY-TRANSFER
Abstract

© 2016 The Royal Society of Chemistry. We investigate the magnetic dilution effect on the relaxation mechanisms and the estimation of the energy barrier in a photo-luminescent Dy(III)/Y(III) based Single-Ion Magnet (SIM). The photo-luminescent spectroscopy permits the careful determination of the Orbach barrier, which is in a good agreement with the ab initio calculations. This barrier does not change upon magnetic dilution. The magnetic properties investigations highlight that the determination of the energy barrier is affected by magnetic dilution due to the changes in Quantum Tunnelling of the Magnetization (QTM). ispartof: RSC Advances vol:6 issue:110 pages:108810-108818 status: published

Published
2016
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