摘要
水热合成了一种新的1-D链状四帽pseudo-Keggin 结构钼钒簇合物[Ni(enMe)2]2- [Ni(enMe)2{H MoVI4MoV4VIV8O40(VVO4)}]4H2O 1,X-射线单晶结构分析表明,该晶体属单斜晶系,C2/c空间群。晶体学参数为a = 26.3006(6), b = 13.6195(3), c = 19.7122(5) ,b = 105.8330(10), V = 6793.0(3) ?, Z = 4, Dc = 2.566 g/cm3, Mr = 2623.96, m = 3.507 mm-1, F(000) =5088, R = 0.0700, wR = 0.1529, S = 1.019。该簇合物是由金属配位桥Ni(enMe)2桥联四帽pseudo-Keggin 结构{HMoVI4MoV4VIV8O40(VVO4)}簇构成一维链状结构,链与链间通过与另外一个配位阳离子[Ni(enMe)2]2+的氢键相互作用构成超分子网状结构。
The novel polyoxometalate, [Ni(enMe)2]2[Ni(enMe)2{HMoVI4MoV4VIV8O40(VVO4)}]4H2O, was synthesized and characterized by elementary analysis, IR spectra and X-ray diffraction. The compound crystallizes in monoclinic, space group C2/c with a = 26.3006(6), b = 13.6195(3), c = 19.7122(5) ? b = 105.8330(10), V = 6793.0(3) ?, Z = 4, Dc = 2.566 g/cm3, Mr = 2623.96, m = 3.507 mm-1, F(000) = 5088, R = 0.0699, wR = 0.1526 and S = 1.018. The compound consists of infinite chains of [Ni(enMe)2]2[Ni(enMe)2{HMoVI4MoV4VIV8O40(VVO4)}]4H2O clusters covalently linked through [Ni(enMe)2] group and another isolated [Ni(enMe)2]2+ cations, occupying the interchain regions and providing charge compensation.
基金
国家自然科学基金资助项目(批准号: 20171045和20271050)
国家财政部和中科院 "引进国外杰出人才"专项基金资助及福建省自然科学基金(E0210029)
