title: Persistent bidirectional optical switching in the 2D high-spin polymer {[Fe(bbtr)3](BF4)2}∞.
abstract: In the covalently linked 2D coordination network {[Fe(bbtr)(3)](BF(4))(2)}(∞), bbtr = 1,4-di(1,2,3-triazol-1-yl)butane, the iron(II) centers stay in the high-spin (HS) state down to 10 K. They can, however, be quantitatively converted to the low-spin (LS) state by irradiating into the near-IR spin allowed (5)dd band and back again by irradiating into the visible (1)dd band. The compound shows true light-induced bistability below 100 K, thus, having the potential for persistent bidirectional optical switching at elevated temperatures.
authors.affiliation: Département de Chimie Physique, Université de Genève, 30 Quai Ernest-Ansermet, CH-1211 Genève 4, Switzerland.
authors.forename: Pradip
authors.initials: P
authors.lastname: Chakraborty
authors.forename: Robert
authors.initials: R
authors.lastname: Bronisz
authors.forename: Céline
authors.initials: C
authors.lastname: Besnard
authors.forename: Laure
authors.initials: L
authors.lastname: Guénée
authors.forename: Phil
authors.initials: P
authors.lastname: Pattison
authors.forename: Andreas
authors.initials: A
authors.lastname: Hauser