具有铁磁偶合的新型草酸根桥联Cu(Ⅱ)-Cr(Ⅲ)-Cu(Ⅱ)三核配合物  

Ferromagenetic Oxalate-Bridged Trinuclear Cu(Ⅱ)-Cr(Ⅲ)-Cu(Ⅱ) Complexes

作　　者：廖代正[1] 石娟[1] 姜宗慧[1] 阎世平[1] 王耕霖[1] 

机构地区：[1]南开大学化学系,天津300071

出　　处：《化学学报》1994年第2期171-175,共5页Acta Chimica Sinica

基　　金：国家自然科学基金重点资助的课题

摘　　要：合成和表征了两种新的异三核配合物,[Cu_2(phen)_2Cr(OX)_3NO_3和[Cu_2(Mebpy)_2Cr(OX)_3]NO_3(phen表示1,10-邻菲咯啉,Mebpy表示4, 4’-二甲基-2,2-联吡啶,OX表示草酸根阴离子).基于变温磁化率测量(4.2～300 K)和自旋哈密顿算符(?)已推出交换积分J=35.18cm^(-1)(Mebpy)和J=30.24cm^(-1)(phen),表明配合物中Cu(Ⅱ)和Cr(Ⅲ)离子间为铁磁偶合.Two new oxalate-bridged triheteronuelear complexes, [Cu2(phen)2Cr(OX)3]NO3 and [Cu2(Mebpy)2Cr(OX)3]NO3 have been characterized, where phen and Mebpy denote 1, 10-phenanthroline and 4,4-dimethyl-2, 2-bipyridyl respectively. The temperature dependence of magnetic susceptibilities of complexes has been studied in 4.2-300K range, and the exchang integral JCu-cr is found to be 85.18cm-1 for [Cu2(Mebpy)2Cr(OX)3]NO3 and 80.24cm-1 for [Cu2(phen)2Cr(OX)3]NO3 on the base of spin Hamiltonian H= - 2J(SCu1·Scr+SCu2·sCr). The results are commensurate with ferromagnetic interactions between the Cu(Ⅱ) and Cr(Ⅲ) ions.

关 键 词：草酸根桥 铁磁偶合 铜 多核络合物 

分 类 号：O625[理学—有机化学]