Searching for switchable molecular conductors: Salts of [M(dcbdt)2] (M=Ni, Au) anions with [Fe(sal2-trien)]+ and [Fe(phen)3]2+
摘要:
Salts of [Fe-III(sal(2)-trien)](+)and [Fe-II(phen)(3)](2+) cations and M[(dcbdt)(2)](-) anions with M = Ni and All (dcbdt = dicyanobenzenedithiolate) with formula [Fe(sal(2)-trien)] [M(dcbdt)(2)] and [Fe(phen)(3)] [M(dcbdt)(2)](2) were obtained and characterized by single X-ray diffraction and magnetic measurements. None of these salts shows a clear spin crossover behaviour and their magnetic properties are due essentially to the cations in a high spin S = 5/2 and low spin states for the Fe-III and Fe-II salts respectively. The magnetic Ni sublattices in both compounds appear to have a negligible direct contribution to the magnetization but enhance the AF interactions in the cation sublattice, (c) 2007 Elsevier B.V. All rights reserved.