水热反应条件下制备了一个基于半刚性双吡啶双酰胺配体3-bpcd(Ⅳ,Ⅳ'-双(3-吡啶)环己烷-1,4-双甲酰胺)和Keggin型多金属氧酸盐的银配合物{[Ag2(3-bpcd)3][Ag(3-bpcd)(SiMo12O40)]2(3-H2 bpcd)2}·7H2O,并通过红外光谱、元素分析和X射线单晶衍射等技术手段确定了其晶体结构.结构分析表明该配合物属于三斜晶系,P-1空间群,晶胞参数a=1.3597(5) nm,b=1.4949 (5) nm,c =2.5249(10) nm,α=88.998(6)°,β=88.856(7)°,γ =67.458(6)°,V=4.739(3) nm3,Mr=6471.02,Dc =2.261 g/cm3,Z=1,S =0.955,F(000) =3124,R1=0.0768,wR2=0.1936.配合物是由一维[Ag(3-bped)(SiMo12 O40)]62-链、双金属[Ag2(3-bpcd)3]2+结构单元、2个未配位的质子化有机配体3-H2bpcd和7个结晶水共同组成的复杂结构,多种结构单元间通过氢键作用形成三维超分子网络结构.标题配合物修饰的碳糊电极对NO2-有好的电催化还原活性,此配合物作为催化剂对罗丹明B的降解有显著的催化效果.
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