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Your search keyword '"Lescouezec, Rodrigue"' showing total 26 results
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26 results on '"Lescouezec, Rodrigue"'

6. Rational design of a new class of heterobimetallic molecule-based magnets: Synthesis, crystal structures, and magnetic properties of oxamato-bridged [formula omitted] (M′ = Li I and Mn II; M = Ni II and Co II) open-frameworks with a three-dimensional honeycomb architecture

Author

Cangussu, Danielle, Pardo, Emilio, Dul, Marie-Claire, Lescouëzec, Rodrigue, Herson, Patrick, Journaux, Yves, Pedroso, Emerson F., Pereira, Cynthia L.M., Stumpf, Humberto O., Carmen Muñoz, M., Ruiz-García, Rafael, Cano, Joan, Julve, Miguel, and Lloret, Francesc

Published
2008
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7. [Fe(bpym)[CN.sub.4][.sup.-]: A new building block for designing single-chain magnets

Author

Toma, Luminita Marilena, Julve, Miguel, Lescouezec, Rodrigue, Lloret, Francesc, Pasan, Jorge, Wernsdorfer, Wolfgang, Ruiz-Perez, Catalina, Carrasco, Rosa, Vaissermann, Jacqueline, and Cano, Joan

Subjects
Iron compounds -- Structure, Iron compounds -- Magnetic properties, Iron compounds -- Spectra, Chemical reactions -- Research, Chemistry
Abstract

The preparation, crystal structure, magnetic properties, and theoretical study of new heterobimetallic chains of formula [[[Fe.sup.III](bpym)[CN.sub.4][.sub.2]][M.sup.II][H.sub.2.][O.sub.2]].6[H.sub.2]O which are obtained by using the building block P[Ph.sub.4][Fe(bpym)-[CN.sub.4].[H.sub.2]O as a ligand toward the fully solvated M[super II] ions are presented.

Published
2006

8. [Fe(bipy)(CN) (sub)4] (super)- as a versatile building block for the design of heterometallic systems: synthesis, crystal structure, and magnetic properties of PPh (sub)4[Fe (super)III (bipy)(CN) (sub)4].H (sub)2 O, [{Fe (super)III (bipy)(CN) (sub)4} (sub)2 M (super)II (H (sub)2 O) (sub)4].4H (sub)2 O, and [{Fe (super)III (bipy)(CN) (sub)4} (sub)2 Zn (super)II].2H (sub)2 O) [bipy= 2,2'-bipyridine; M= Mn and Zn]

Author

Lescouezec, Rodrigue, Lloret, Francesc, Julve, Miguel, Vaissermann, Jacqueline, and Verdaguer, Michel

Subjects
Chemistry, Inorganic -- Research, Iron compounds -- Physiological aspects, Pyridine -- Physiological aspects, Coordination compounds -- Physiological aspects, Manganese -- Physiological aspects, Zinc -- Physiological aspects, Cyanides -- Physiological aspects, Chemistry
Abstract

Research has been conducted on the low-spin iron(III) complexes used as ligands. The preparation and the crystal structure of the precursor complex PPh (sub)4[Fe (super)III (bipy)(CN) (sub)4].H (sub)2 O and its derivatives are described.

Published
2002

9. [Fe(Phen)(CN)(sub 4)](super -1): A versatile building block for the design of heterometallic systems. crystal structures and magnetic properties of PPh(sub 4)[Fe(Phen)(cN)(sub 4)].2H2O and [{Fe(Phen)(CN)(sub 4)}(sub 2)M(H2))(sub 2)].4H2O [Phen = 1,10-Phenanthroline; M = Mn(II) and Zn(II)]

Author

Lescouezec, Rodrigue, Lloret, Francesc, Julve, Miguel, Vaissermann, Jacqueline, Verdaguer, Michel, Uriel, Santiago, and Llusar

Subjects
Ferromagnetism -- Analysis, Chemical reactions -- Research, Crystals -- Structure, Crystals -- Analysis, Chemistry
Abstract

The mononuclear PPh(sub 4)[Fe(phen(CN)(sub 4)].2H2O complex and the cyanide-bridged bimetallic compounds are synthesized and structurally characterized. A comparison between the magnetic properties of the isostructural compounds allows to check the antiferromagnetic coupling in M= Mn(II).

Published
2001

10. Two-dimensional assembling of (2,2'-bipyrimidine)bis(oxalato)chromate(III) units through alkaline cations

Author

De Munno, Giovanni, Armentano, Donatella, Julve, Miguel, Lloret, Francesc, Lescouezec, Rodrigue, and Faus, Juan

Subjects
Cations -- Research, Inorganic compounds -- Synthesis, Complex compounds -- Research, Chemistry
Abstract

The synthesis of four (2,2'-bipyrimidine)bis(oxalato)chromate(III) units using alkaline cations has been carried out. The crystal structure of the first complex is made up of mononuclear anions, tetraphenyl-arsonium cations and uncoordinated water molecules. The second complex has a crystal structure consisting of parallel sheets made up of an infinite hexagonal array of chromium and sodium atoms bridged by bis-bidentate ox and bpm ligands. The third and fourth complexes are similar in structure with the second except that a Cr(III)-Na(I) pair replaces two copper(II) ions in the third and two manganese (II) ions in the fourth.

Published
1999

14. Ferromagnetic coupling between low- and high-spin iron(III) ions in the tetranuclear complex fac-{[Fe (super)III {HB(pz) (sub)3}(CN) (sub)2 (mu-CN)] (sub)3 Fe (super)III (H (sub)2 O) (sub)3}.6H (sub)2 O ([HB(pz) (sub)3] (super)- = hydrotris(1-pyrazolyl)borate)

Author

Lescouezec, Rodrigue, Vaissermann, Jacqueline, Lloret, Francesc, Julve, Miguel, and Verdaguer, Michel

Subjects
Chemistry, Inorganic -- Research, Ferromagnetism -- Research, Metal ions, Iron compounds, Coordination compounds, Chemistry
Abstract

Research has been conducted on mononuclear PPh (sub)4-fac-[Fe (super)III {HB(pz) (sub)3}(CN) (sub)3].H (sub)2 O and tetranuclear fac-{[Fe (super)III {HB(pz) (sub)3}(CN) (sub)2 (mu-CN)] (sub)3 Fe (super)III (H (sub)2 O) (sub)3}.6H (sub)2 O complexes. The preparation and characterization of these complexes have been carried out via the use of X-ray diffraction analysis, and the details are reported.

Published
2002

15. Dimensionality switching through a thermally induced reversible single-crystal-to-single-crystal phase transition in a cyanide complex

Author

Gheorghe, Ruxandra, Kalisz, Marguerite, Clerac, Rodolphe, Mathoniere, Corine, Herson, Patrick, Yanling Li, Seuleiman, Mannan, Lescouezec, Rodrigue, Lloret, Francesc, and Julve, Miguel

Subjects
Cyanides -- Structure, Cyanides -- Chemical properties, Cyanides -- Thermal properties, Fourier transform infrared spectroscopy -- Usage, Iron -- Chemical properties, Manganese -- Chemical properties, Phase transformations (Statistical physics) -- Analysis, Pyrimidines -- Structure, Pyrimidines -- Chemical properties, Pyrimidines -- Thermal properties, X-ray crystallography -- Usage, Chemistry
Published
2010

16. Redox switch-off of the ferromagnetic coupling in a mixed-spin tricobalt(II) triple mesocate

Author

Dul, Marie-Claire, Pardo, Emilio, Lescouezec, Rodrigue, Chamoreau, Lise-Marie, Villain, Francoise, Journaux, Yves, Ruiz-Garcia, Rafael, Cano, Joan, Julve, Miguel, Lloret, Francesc, Pasan, Jorge, and Ruiz-Perez, Catalina

Subjects
Ferromagnetism -- Analysis, Organometallic compounds -- Structure, Organometallic compounds -- Chemical properties, Organometallic compounds -- Magnetic properties, Spin coupling -- Analysis, Cobalt -- Chemical properties, Cobalt -- Magnetic properties, Chemistry
Abstract

A new trinuclear oxalamide cobalt triple mesocate with two redox states and dramatically different magnetic properties are used to demonstrate redox-based, ferromagnetic 'metal-organic switches'. The two terminal high-spin [d.sup.7] [Co.sup.II] ions (S = 3/2) that are ferromagnetically coupled in the homovalent tricobalt(II) reduced state are found to become uncoupled in the heterovalent tricobalt(II,III,II) oxidized state ([2.sup.ox]) upon one-electron oxidation of the central low-spin [d.sup.7] [Co.sup.II] ion (S = 1/2) to a low-spin [d.sup.6] [Co.sup.III] ion (S = 0).

Published
2009

17. Ferromagnetic coupling by spin polarization in a trinuclear copper(II) metallacyclophane with a triangular cage-like structure

Author

Dul, Marie-Claire, Ottenwaelder, Xavier, Pardo, Emilio, Lescouezec, Rodrigue, Journaux, Yves, Chamoreau, Lise-Marie, Ruiz-Garcia, Rafael, Cano, Joan, Julve, Miguel, and Lloret, Francesc

Subjects
Density functionals -- Analysis, Ferromagnetism -- Analysis, Benzene -- Chemical properties, Benzene -- Structure, Copper compounds -- Magnetic properties, Copper compounds -- Structure, X-rays -- Diffraction, X-rays -- Analysis, Chemistry
Published
2009

18. Molecular-programmed self-assembly of homo- and heterometallic tetranuclear coordination compounds: synthesis, crystal structures, and magnetic properties of rack-type [Cu.sup.II.sub.2][M.sup.II.sub.2] complexes (M = Cu and Ni) with tetranucleating phenylenedioxamato bridging ligands

Author

Pardo, Emilio, Cangussu, Danielle, Lescouezec, Rodrigue, Journaux, Yves, Pasan, Jorge, Delgado, Fernando S., Ruiz-Perez, Catalina, Ruiz-Garcia, Rafael, Cano, Joan, Julve, Miguel, and Lloret, Francesc

Subjects
Antiferromagnetism -- Analysis, Copper compounds -- Magnetic properties, Copper compounds -- Structure, Nickel compounds -- Magnetic properties, Nickel compounds -- Structure, Chemistry
Published
2009

19. Mer-[Fe(super III)(bpca)(CN)3](super -1): a new low-spin iron(III) complex to build heterometallic ladder-like chains

Author

Lescouezec, Rodrigue, Vaissermann, Jacqueline, Toma, Luminita Marilena, Carrasco, Rosa, Lloret, Francesc, and Julve, Miguel

Subjects
Chemical reactions -- Research, Iron compounds -- Research, Chemistry
Abstract

The novel mononuclear complex PPh4-mer-[Fe(super III)(bpca)(sub 3)(CN)3].H2O [PPh4(super +) = tetraphenylphosphonium cation and bpca = bis(2-pyridycarbonyl)amidate anion] and ladder-like chain compound {[Fe(super III)(bpca)(mu-CN)3Mn(super II)(H2O)3] [Fe(super III)(bpca)(CN)3]}.3H2O are prepared and characterized by X-ray diffraction analysis.

Published
2004

21. Molecular (Nano)magnetism

Author

Verdaguer, Michel, primary, Bleuzen, Anne, additional, Lescouezec, Rodrigue, additional, Marvaud, Valerie, additional, and Train, Cyrille, additional

Published
2006
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25. [Fe(Phen)(CN)[sub 4]]-: A Versatile Building Block for the Design of Heterometallic Systems...

Author

Lescouezec, Rodrigue, Lloret, Francesc, Julve, Miguel, Vaissermann, Jacqueline, Verdaguer, Michel, Llusar, Rosa, and Uriel, Santiago

Subjects
*METALLIC composites, *METAL complexes
Abstract

Investigates a versatile building block for the design of heterometallic systems. Electronic property of cyanide-containing metal complexes; Crystal structures and magnetic properties of PPh[sub 4][Fe(phen)(CN)[sub 4]-2H[sub 2]O and [{Fe(Phen)(CN)[sub 4]}[sub 2]M(H[sub 2]O){sub 2]]-4H[sub 2]O.

Published
2001
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