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,每个配体采取附桥联模式,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.