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Three Properties in One Coordination Complex: Chirality, Spin Crossover, and Dielectric Switching
Author(s) -
Ru Jing,
Yu Fei,
Shi PingPing,
Jiao ChengQi,
Li ChengHui,
Xiong RenGen,
Liu Tao,
Kurmoo Mohamedally,
Zuo JingLin
Publication year - 2017
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201700609
Subject(s) - spin crossover , chemistry , chirality (physics) , dielectric , enantiopure drug , crossover , coupling (piping) , condensed matter physics , spin (aerodynamics) , chemical physics , crystallography , enantioselective synthesis , optoelectronics , materials science , symmetry breaking , organic chemistry , physics , thermodynamics , chiral symmetry breaking , quantum mechanics , artificial intelligence , computer science , nambu–jona lasinio model , metallurgy , catalysis
In the search for multifunctional molecular materials, we designed an enantiopure pair of Fe II complexes with chiral, chelating ( R )/( S )‐4,5‐pinenepyridyl‐2‐pyrazine ligands exhibiting three inherent physical properties: chirality, spin crossover, and dielectric switching. The geometrical change resulted in coupling of the spin‐crossover transition at 187 K to dielectric switching. Both compounds were found to display light‐induced spin crossover that was thermally unstable above ca. 40 K. The coupling of two hysteretic properties, electric and magnetic, renders these compounds as potential switching devices.