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科学通报  2011 

三维超分子结构多金属氧酸盐(H2en)3[(NiO6)Mo6O18(As3O3)2]Cl2·6H2O的合成与结构表征

DOI: 10.1360/972010-2057, PP. 928-933

Keywords: 多金属氧酸盐,Anderson,结构衍生物,晶体结构,常温水溶液合成三维,超分子结构

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Abstract:

以Na2MoO4·2H2O,Na3AsO3,NiCl2·6H2O,乙二胺等为原料,通过常温水溶液方法合成一例Anderson结构衍生物(H2en)3[(NiO6)Mo6O18(As3O3)2]Cl2·6H2O(1,en=ethylenediamine),并对其进行了红外、紫外、热重、X射线粉末衍射及X射线单晶结构测定.晶体结构测定表明,化合物属于三斜晶系,P-1空间群,晶胞参数a=0.94190(6)nm,b=1.08612(8)nm,c=1.10976(8)nm,α=95.6890(10)°,β=92.6460(10)°,γ=90.8800(10)°,V=1.12828(14)nm3,Z=1,R1=0.0441,wR2=0.1189.化合物1分子由一个[(NiO6)Mo6O18(As3O3)2]4-阴离子,2个Cl-离子,3个质子化的乙二胺和6个结晶水组成.杂多阴离子[(NiO6)Mo6O18(As3O3)2]4-借助氢键与质子化的乙二胺及Cl-离子相连构筑成三维超分子结构.

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