title: Observation of an Fe(II) spin-crossover in a cesium iron hexacyanochromate.
abstract: In this work, we observed a spin-crossover phenomenon in a cesium iron hexacyanochromate, which is a Prussian blue analogue. This compound showed a thermal phase transition with transition temperatures of 211 K (T1/2 downward arrow) and 238 K (T1/2 upward arrow) due to a spin-crossover on FeII sites. This spin-crossover phase transition is accompanied by a lattice contraction of 0.38 A, but maintains a face-centered cubic structure (F3m). This is the first observation of FeII spin-crossover in a series of Prussian blue analogues.
authors.affiliation: Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
authors.forename: Wataru
authors.initials: W
authors.lastname: Kosaka
authors.forename: Kiyoshi
authors.initials: K
authors.lastname: Nomura
authors.forename: Kazuhito
authors.initials: K
authors.lastname: Hashimoto
authors.forename: Shin-Ichi
authors.initials: S
authors.lastname: Ohkoshi