1,4-二氮杂二环[2.2.2]辛烷-1,4-二乙酸配合物的合成、结构与磁性  

Synthesis,Structures and Magnetic Properties of Coordination Compounds Based on 1,4-diazoniabicyclo[2.2.2]octane-1,4-diacetate

作　　者：张瑞凤[1] 师唯[1] 程鹏[1] 

机构地区：[1]南开大学化学学院

出　　处：《无机化学学报》2008年第8期1272-1277,共6页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金(No.20631030);天津市自然科学基金(No.06YFJZJC009000);教育部博士点基金(No.20060055039)资助项目

摘　　要：合成了{[M(L)2(H2O)2](ClO4)2·4H2O}n(M=Cu1,Co2;L=1,4-二氮杂二环[2.2.2]辛烷-1,4-二乙酸),并进行了元素分析、红外、热重、变温磁化率等表征。单晶结构表明这2个配合物属于单斜晶系,P21/c空间群。Cu(Ⅱ)和Co(Ⅱ)均为六配位,八面体构型,每个金属离子与4个配体和2个水分子配位,每个配体采取μ2-桥联模式,形成二维层状结构。磁性研究结果显示配合物1中Cu(Ⅱ)离子之间存在弱的反铁磁相互作用,配合物2中Co(Ⅱ)离子处于中等强度的配位场。Two coordination compounds, {[M（L）2（H2O）2]（ClO4）2-4H2O}n （M=Cu 1, Co 2; L=1,4-diazoniabicyclo[2.2.2] octane-1,4-diacetate）, were synthesized and characterized by elemental analysis, IR, TGA and magnetic susceptibilities. Single-crystal structures show the two compounds both crystallize in monoclinic system, space group P21/c. Cu（Ⅱ） and Co（Ⅱ） ions are coordintated with six oxygen atoms from two water molecules and four ligands to form an octahedral geometry. Each ligand links two metal ions in a/.tz-bridge coordination mode and two-dimensional wavelike structures are formed. Magnetic studies showed that weak antiferromagnetic interactions existed between the Cu（Ⅱ） ions in 1, and Co（Ⅱ） ions were located in a moderate ligand field in 2. CCDC： 684712, 1; 684713, 2.

关 键 词：Cu(Ⅱ)配合物 Co(Ⅱ)配合物 1 4-二氮杂二环【2.2.2】辛烷-1 4-二乙酸 磁性 晶体结构 

分 类 号：O614.121[理学—无机化学] O614.812[理学—化学]