title: A 2D layered spin crossover complex constructed by NH...Cl- hydrogen bonds: [FeIIH3LMe]Cl.I3 (H3LMe = tris[2-(((2-methylimidazoyl-4-yl)methylidene)amino)ethyl]amine.
abstract: A 2D layered spin crossover complex, [FeIIH3L(Me)]Cl.I3, has been synthesized from the reaction of FeIIICl3, a tripod ligand (H3LMe = tris[2-(((2-methylimidazoyl-4-yl)methylidene)amino)ethyl]amine), and NaI in methanol. The compound showed an abrupt spin transition between the HS (S = 2) and LS (S = 0) states at T(1/2) = 110 K without hysteresis. The crystal structures of the HS and LS states were determined at 180 and 90 K. A 2D layered structure is composed of NH...Cl- hydrogen bonds between the Cl- ion and three neighboring imidazole groups of [FeIIH3LMe]2+. The green light irradiation at 5 K induced the LIESST effect, and the thermal relaxation process from the HS to LS state showed a sigmoid curve at T > 55 K.
authors.affiliation: Department of Chemistry, Faculty of Science, Kumamoto University, Japan.
authors.forename: Masahiro
authors.initials: M
authors.lastname: Yamada
authors.forename: Eri
authors.initials: E
authors.lastname: Fukumoto
authors.forename: Makoto
authors.initials: M
authors.lastname: Ooidemizu
authors.forename: Nicolas
authors.initials: N
authors.lastname: Bréfuel
authors.forename: Naohide
authors.initials: N
authors.lastname: Matsumoto
authors.forename: Seiichiro
authors.initials: S
authors.lastname: Iijima
authors.forename: Masaaki
authors.initials: M
authors.lastname: Kojima
authors.forename: Nazzareno
authors.initials: N
authors.lastname: Re
authors.forename: Françoise
authors.initials: F
authors.lastname: Dahan
authors.forename: Jean-Pierre
authors.initials: JP
authors.lastname: Tuchagues