Ferromagnetic S=1 chain formed by a square Ni2S2 motif in Ni(qt)2 (qt=quinoline-8-thiolate). Magnetic properties of related compounds
作者:Takashi Miyake、Takayuki Ishida、Daisuke Hashizume、Fujiko Iwasaki、Takashi Nogami
DOI:10.1016/s0277-5387(01)00653-2
日期:2001.5
ML2 complexes [M=Fe2+, Co2+, Ni2+, Cu2+; L=quinolin-8-olate (q), quinoline-8-thiolate (qt)] were prepared and their magnetic properties were studied. X-ray crystal structure analysis of Ni(qt)2 reveals that nickel(II) ions are arranged to form a one-dimensional structure with double thiolate bridges. Magnetic susceptibility measurements of Ni(qt)2 indicate that the nickel S=1 spins are ferromagnetically
ML 2配合物[M = Fe 2 +,Co 2 +,Ni 2 +,Cu 2+;制备了L =喹啉-8-油酸盐(q),喹啉-8-硫醇盐(qt)],并研究了它们的磁性能。Ni(qt)2的X射线晶体结构分析表明,镍(II)离子排列成具有双硫醇盐桥的一维结构。Ni(qt)2的磁化率测量表明,镍S = 1自旋在链中铁磁耦合。其他ML 2表现出反铁磁相互作用。ML 2分子复合物的磁性还研究了含有7,7,8,8-四氰基喹二甲烷(TCNQ)的化合物。确定了Ni(qt)2(TCNQ)的晶体结构。