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2 results on '"Reverse spin transition"'

1. Thermochromic Meltable Materials with Reverse Spin Transition Controlled by Chemical Design.

Author

Valverde‐Muñoz, Francisco‐Javier, Seredyuk, Maksym, Muñoz, M. Carmen, Molnár, Gábor, Bibik, Yurii S., and Real, José Antonio

Subjects
*SPIN crossover, *THERMOCYCLING, *TRANSITION temperature, *THIN films
Abstract

We report a series of meltable FeII complexes, which, depending on the length of aliphatic chains, display abrupt forward low‐spin to high‐spin transition or unprecedented melting‐triggered reverse high‐spin to low‐spin transition on temperature rise. The reverse spin transition is perfectly reproducible on thermal cycling and the obtained materials are easily processable in the form of thin film owing to their soft‐matter nature. We found that the discovered approach represents a potentially generalizable new avenue to control both the location in temperature and the direction of the spin transition in meltable compounds. [ABSTRACT FROM AUTHOR]

Published
2020
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2. Thermochromic Meltable Materials with Reverse Spin Transition Controlled by Chemical Design

Author

Francisco Javier Valverde-Muñoz, Maksym Seredyuk, Yurii S. Bibik, M. Carmen Muñoz, José Antonio Real, Gábor Molnár, Instituto de Ciencia Molecular (ICMol), Universitat de València (UV), Department of Chemistry, Taras Shevchenko National University of Kyiv, Taras Shevchenko National University of Kyiv, Departamento de Física Aplicada [Universitat Politècnica de València], Universitat Politècnica de València (UPV), Laboratoire de chimie de coordination (LCC), Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Institut de Chimie de Toulouse (ICT-FR 2599), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), 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), Spanish Ministerio de Economia y Competitividad (MINECO)/ Ministerio de Ciencia e Innovacion FEDER (CTQ2016-78341-P/PID2019-106147GB-I00), Unidad de Excelencia Maria de Maeztu (CEX2019-000919-M), Generalitat Valenciana - PROMETEO/2016/147, and EU Framework Program for Research and Innovation (RISE project 'SPINSWITCH' number 734322)

Subjects
Phase transition, Materials science, Bistability, Spin transitions, Spin transition, 02 engineering and technology, Temperature cycling, 010402 general chemistry, 01 natural sciences, Catalysis, Spin crossover, [CHIM.COOR]Chemical Sciences/Coordination chemistry, Soft matter, Thin film, Thermochromism, Condensed matter physics, 010405 organic chemistry, Reverse spin transition, General Medicine, General Chemistry, 021001 nanoscience & nanotechnology, 0104 chemical sciences, Condensed Matter::Strongly Correlated Electrons, 0210 nano-technology
Abstract

International audience; We report a series of meltable FeII complexes, which, depending on the length of aliphatic chains, display abrupt forward low‐spin to high‐spin transition or unprecedented melting‐triggered reverse high‐spin to low‐spin transition on temperature rise. The reverse spin transition is perfectly reproducible on thermal cycling and the obtained materials are easily processable in the form of thin film owing to their soft‐matter nature. We found that the discovered approach represents a potentially generalizable new avenue to control both the location in temperature and the direction of the spin transition in meltable compounds.

Published
2020

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