Electro-vibrational Ising-type model for spin crossover in binuclear molecules
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Date
2019
Journal Title
Journal ISSN
Volume Title
Publisher
Université de M'sila
Abstract
spin crossover in binuclear molecule is investigated using an Ising-type model, including the intramolecular
vibrations. The spin transition curve of [Fe(bt)(NCS)2]2bpym complex which presents a two-step transition plateau is well
described by the above model. We show that the equilibrium low-spin/high-spin temperature Teq is independent of the
vibration frequencies of the intermediate state (HS–LS or LS–HS) xLHS. In addition, a large values of LS–LS state
vibration frequencies xLLS lead to an evident two-step transition plateau.
Description
Keywords
Spin crossover; Ising-type model; Binuclear molecules; Two-step spin transition