常温反应条件下制备了4个基于乙二胺和1,5-萘二磺酸的配位化合物[M(en) (H2O)4]·1,5-nds·(H2O)2(M=Ni(1),Co(2),Cd(3),Cu(4),nds=1,5-萘二磺酸;en=乙二胺),并通过红外光谱、元素分析、X射线单晶衍射、X射线粉末衍射和热重分析等技术手段确定了其晶体结构.结构分析表明,该系列配合物属于同构体系,单斜晶系,C2/c空间群.以配合物1为例,其晶胞参数为a=1.69026(19) nm,b =1.01373(11) nm,c=1.3448(3) nm,α=90°,β=120.2650°,γ=90°,V=1.9901(5) nm3,Z=4,Dc=1.713 g/cm3,F(000) =1072,R1=0.0326,wR2 =0.0867.该系列配合物的中心金属为六配位模式,与来自乙二胺的2个N原子和4个H2O中的氧原子配位.游离水与磺酸氧和配位水之间存在着丰富的氢键作用,构筑成三维的网络结构.测定了以Cd为中心金属配合物3的荧光光谱,发现其在对于甲醇的小分子识别性能方面具有应用前景.
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