在水热条件下,利用H2biim(H2biim=2,2'-联咪唑)与金属离子Co“组装,得到一个结构新颖的混合价态CoⅡ/Ⅲ四核簇状配合物[Co4(H2biim)4(Hbiim)2(SO4)3]·3H2O (1),并对其进行元素分析、红外光谱、热重分析、拓扑分析、X-射线单晶衍射等测定.标题配合物属单斜晶系P21/c空间群,晶胞参数:a=1.23477 (6) nm,b=2.19524(13) nm,c =2.22162(9) nm,β=121.735(2)°,Z=4,V=5.1216 (4) nm3,Dc =1.779 g·cm-3,μ=1.486mm-1.X-射线单晶衍射分析表明四核簇状配合物1中H2biim配体分别以中性的H2biim配体和负一价的Hbiim-配体与钴离子配位,SO42-分别以单齿、三齿和四齿与钴离子配位,构成四核[Co4(SO4)6]2-簇,四核Co簇再进一步以[Co(H2biim) (Hbiim)2]+结构单元链接形成具有一维通道的三维孔洞结构.
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