Title: Direct Observation of Ordered High-Spin-Low-Spin Intermediate States of an Iron(III) Three-Step Spin-Crossover Complex.
Authors: Li, Zhao-Yang; Ohtsu, Hiroyoshi; Kojima, Tatsuhiro; Dai, Jing-Wei; Yoshida, Takefumi; Breedlove, Brian K.; Zhang, Wei-Xiong; Iguchi, Hiroaki; Sato, Osamu; Kawano, Masaki; Yamashita, Masahiro
Abstract: A neutral mononuclear FeIII complex [FeIII(H-5-Br-thsa-Me)(5-Br-thsa-Me)]⋅H2O ( 1; H2-5-Br-thsa-Me=5-bromosalicylaldehyde methylthiosemicarbazone) was prepared that exhibited a three-step spin-crossover (SCO) with symmetry breaking and a 14 K hysteresis loop owing to strong cooperativity. Two ordered intermediate states of 1 were observed, 4HS-2LS and 2HS-4LS, which exhibited reentrant phase-transition behavior. This study provides a new platform for examining multistability in SCO complexes.
Subjects: IRON; SPIN crossover; HYSTERESIS; PHASE transitions; TRANSITION metal complexes
Publication: Angewandte Chemie International Edition, 2016, Vol 55, Issue 17, p5184
ISSN: 1433-7851
Publication type: Academic Journal
DOI: 10.1002/anie.201511281

Direct Observation of Ordered High-Spin-Low-Spin Intermediate States of an Iron(III) Three-Step Spin-Crossover Complex.

Li, Zhao-Yang; Ohtsu, Hiroyoshi; Kojima, Tatsuhiro; Dai, Jing-Wei; Yoshida, Takefumi; Breedlove, Brian K.; Zhang, Wei-Xiong; Iguchi, Hiroaki; Sato, Osamu; Kawano, Masaki; Yamashita, Masahiro