title: Genuine redox isomerism in a rare-earth-metal complex.
abstract: Redox isomerism is observed for a lanthanide complex for the first time. Upon lowering the temperature, an electron of [{(dpp-bian)Yb(μ-Cl)(dme)}(2)] (1) is transferred from the metal to the ligand (see picture), giving rise to marked shortening of Yb-N bonds and a hysteretic jump in the magnetic moment. The crystal packing is of a crucial importance, as two other crystal modifications of 1 do not undergo this effect.
authors.affiliation: G. A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, Tropinina 49, Nizhny Novgorod 603950, Russia. igorfed@iomc.ras.ru
authors.forename: Igor L
authors.initials: IL
authors.lastname: Fedushkin
authors.forename: Olga V
authors.initials: OV
authors.lastname: Maslova
authors.forename: Alexander G
authors.initials: AG
authors.lastname: Morozov
authors.forename: Sebastian
authors.initials: S
authors.lastname: Dechert
authors.forename: Serhiy
authors.initials: S
authors.lastname: Demeshko
authors.forename: Franc
authors.initials: F
authors.lastname: Meyer