三缺位Keggin结构磷钨酸甲基苯基硅衍生物[(C_4H_9)_4N]_3[α-A-PW_9O_(34)(C_6H_5SiCH_3)_3]的合成和表征(英文)

A Methylphenylsilyl Group-Substituted Derivative Based on the Trivacant Keggin Structure Tungstophosphate[(C_4H_9)_4N]_3[α-A-PW_9O_(34)(C_6H_5SiCH_3)_3]: Synthesis and Structural Characterization

通过三缺位Keggin结构杂多阴离子[α-A-PW9O34]9-和二氯甲基苯基硅烷在乙腈溶液中反应,合成了一例结构新颖的甲基苯基硅衍生物[(C4H9)4N]3[α-A-PW9O34(C6H5SiCH3)3](1),并对其进行元素分析,红外光谱,紫外光谱,热分析和X-射线单晶衍射等表征。该配合物属于三方晶系,空间群为R3m,晶胞参数:a=2.261 3(2)nm,b=2.261 3(2)nm,c=1.797 6(4)nm,V=7.960 2(18)nm3,Z=3。在配合物中,阴离子[α-A-PW9O34(C6H5SiCH3)3]3-呈C3v对称,3个甲基苯基硅基团连接在三缺位的阴离子[α-A-PW9O34]9-表面,整个阴离子显示"开放结构"。

A methylphenylsilyl group-substituted derivative [（C4H9）4N]3[α-A-PW9O34（C6H5SiCH3）3] （1） has been obtained by reaction of the trivacant [ot-A-PWgO34]9- anion with dichloromethylphenylsilane C6HsSiCH3Cl2 in acetonitrile. The new complex was characterized by elemental analysis, IR spectra, UV spectra, thermogravimetric analysis and X-ray crystallography. The compound 1 crystallizes in the trigonal space group R3m, with lattice constants a=2.261 3（2） nm, b=2.261 3（2） nm, c=1.797 6（4） nm, V=7.960 2（18） nm3, and Z=3. The polyoxoanion [α-A-PW9O34（C6H5SiCH3）3]3- has a structure of virtual C3v symmetry with three C6H5SiCH3 groups grafted on the surface of the trivacant tungstophosphate and displays an ＂open-structure＂. CCDC： 830334.