title: A polymorphism-dependent T(1/2) shift of 100 K in a hysteretic spin-crossover complex related to differences in intermolecular weak CH···X hydrogen bonds (X = S vs. S and N).
abstract: A neutral mononuclear iron(II) complex with a 1,2,3-triazole-containing tetradentate ligand has been obtained as two solvent-free polymorphs. Both polymorphs show hysteretic spin crossover with a polymorphism-dependent T(1/2) shift of 100 K that spans room temperature due to differences in intermolecular weak CH···X hydrogen-bonding interactions (X = S vs. S and N).
authors.affiliation: Department of Chemistry, Faculty of Education, Gifu University, Yanagido 1-1, Gifu 501-1193, Japan. hagiwara@gifu-u.ac.jp.
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Hagiwara
authors.affiliation: Graduate School of Education, Gifu University, Yanagido 1-1, Gifu 501-1193, Japan.
authors.forename: Shohei
authors.initials: S
authors.lastname: Okada