Synthesis, crystal structure and NMR of [Na(DB18C6)(CH3CN)]3[α-AsM12O40] (M = Mo/W)

被引：8

作者：

Lu, XM ^{[1
]}

Liu, B

Sarula

Wang, J

Ye, CH

机构：

[1] Capital Normal Univ, Dept Chem, Beijing 100037, Peoples R China

[2] SINOPEC, Res Inst Petr Proc, Beijing 100083, Peoples R China

[3] Wuhan Inst Phys & Math, Wuhan 430071, Peoples R China

来源：

INORGANIC CHEMISTRY COMMUNICATIONS | 2005年 / 8卷 / 12期

基金：

美国国家科学基金会;

关键词：

crown ether; polyoxometalates; crystal structure; solvothermal reaction;

D O I：

10.1016/j.inoche.2005.09.017

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Two super-molecular complexes [Na(DB18C6)(CH3CN)](3)[alpha-AsM12O40] (M = Mo/W) were obtained by solvothermal reaction and characterized by IR,H-1 C-13 and gUMBC NMR, X-ray. The result reveals that the complex consists of a [alpha-AsM12O40](3-) (M = Mo/ W) anion with alpha-Keggin structure, and three complex [Na (DB18C6)(CH3CN)](+) cations in which every sodium ion is located in the cavity of dibenzo-18-crown-6 with 6 Na-O bonds and coordinated with one of the terminal O atom of [alpha-AsM12O40]3- (M = Mo/W) and the N atom of CH3CN from two sides of the distorted DB18C6 plane, respectively. The three terminal O atoms linked with sodium ion are from a single M3O13 (M = Mo/W) triplet of the alpha-Keggin metalatoarsenate anion, and M-Ob (M = Mo/W) bonds exhibit alternating single-double bond character. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：1133 / 1136

页数：4

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