title: A tetranuclear Cr(III)Ni(II)3 cyano-bridged complex based on M(tacn) derivative building blocks.
abstract: The reaction of Cr(Bztacn)(CN)3 (Bztacn is 1,4,7-trisbenzyl-1,4,7-triazacyclononane) with Ni(iPrtacn)Cl2 (iPrtacn is 1,4,7-trisisopropyl-1,4,7-triazacyclononane) affords a CrNi3 tetranuclear complex. Variable temperature and magnetization versus field measurements show a S = 9/2 ground state and an appreciable magnetic anisotropy with a negative D(9/2) value equal to -0.54 cm(-1). Magnetization studies on one single crystal using a micro-SQUID show a fast tunneling process at zero field at very low temperature.
authors.affiliation: Laboratoire de Chimie Inorganique, ICMMO, CNRS UMR 8613, Université Paris-Sud, 91405 Orsay, France.
authors.forename: Jean-Noël
authors.initials: JN
authors.lastname: Rebilly
authors.forename: Laure
authors.initials: L
authors.lastname: Catala
authors.forename: Eric
authors.initials: E
authors.lastname: Rivière
authors.forename: Régis
authors.initials: R
authors.lastname: Guillot
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Wernsdorfer
authors.forename: Talal
authors.initials: T
authors.lastname: Mallah