摘要
在水热条件下,合成了一种有机-无机杂化四核镍取代的夹心型砷钨酸盐[Ni(detaH)2(H2O)]2[Ni(deta)2][Ni4(H2O)2(B-α-AsW9O34)2].4H2O(deta=二乙烯三胺),并借助IR光谱和X射线单晶衍射对其结构进行了表征.标题化合物属于正交晶系,Pbca空间群,晶胞参数:a=2.168 8(3)nm,b=1.943 5(3)nm,c=2.188 6(3)nm,V=9.225(2)nm3,Z=4,Dc=4.122 g/cm3,GOOF=1.146,R1=0.034 8,wR2=0.081 0.X射线单晶结构分析表明,标题化合物分子由1个四核镍取代多阴离子[Ni4(H2O)2(B-α-AsW9O34)2]10-,2个支撑的配阳离子[Ni(detaH)2(H2O)]4+,1个游离的配阳离子[Ni(deta)2]2+和4个结晶水分子组成.
An organic-inorganic hybrid tetranickel substituted sandwich-type arsenotungstate [Ni(detaH)2(H2O)]2[Ni(deta)2][Ni4(H2O)2(B-α-AsW9O34)2]·4H2O has been hydrothermally synthesized and structurally characterized by IR spectrum and X-ray single-crystal diffraction.The title compound crystallizes in the orthorhombic space group Pbca with a = 2.168 8(3) nm,b = 1.943 5(3) nm,c = 2.188 6(3) nm,V = 9.225(2) nm3,Z = 4,Dc = 4.122 g/cm3,GOOF = 1.146,R1 = 0.034 8,wR2 = 0.081 0.X-ray structural analysis indicates that the title compound consists of 1 tetranickel substituted polyoxoanion [Ni4(H2O)2(B-α-AsW9O34)2]10-,2 supporting [Ni(detaH)2(H2O)]4+ cations,1 discrete [Ni(deta)2]2+ cation and 4 lattice water molecules.
出处
《化学研究》
CAS
2011年第4期15-19,共5页
Chemical Research
关键词
多金属氧酸盐
砷钨酸盐
镍簇
夹心型化合物
polyoxometalate
arsenotungstate
nickel cluster
sandwich-type complex