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Reversible Photoswitching of a Spin‐Crossover Molecular Complex in the Solid State at Room Temperature
Author(s) -
Rösner Benedikt,
Milek Magdalena,
Witt Alexander,
Gobaut Benoît,
Torelli Piero,
Fink Rainer H.,
Khusniyarov Marat M.
Publication year - 2015
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201504192
Subject(s) - spin crossover , diamagnetism , molecular switch , paramagnetism , chemical physics , spin states , spin (aerodynamics) , molecule , ultraviolet , chemistry , solid state , materials science , condensed matter physics , optoelectronics , magnetic field , crystallography , physics , inorganic chemistry , thermodynamics , organic chemistry , quantum mechanics
Spin‐crossover metal complexes are highly promising magnetic molecular switches for prospective molecule‐based devices. The spin‐crossover molecular photoswitches developed so far operate either at very low temperatures or in the liquid phase, which hinders practical applications. Herein, we present a molecular spin‐crossover iron(II) complex that can be switched between paramagnetic high‐spin and diamagnetic low‐spin states with light at room temperature in the solid state. The reversible photoswitching is induced by alternating irradiation with ultraviolet and visible light and proceeds at the molecular level.