THE 1ST OBSERVATION OF GAMMA-OCTAMOLYBDATE - SYNTHESIS, CRYSTAL AND MOLECULAR-STRUCTURE OF [ME3N(CH2)6NME3]2[MO8O26].2H2O

被引：94

作者：

NIVEN, ML ^{[1
]}

CRUYWAGEN, JJ ^{[1
]}

HEYNS, JBB ^{[1
]}

机构：

[1] UNIV STELLENBOSCH,DEPT CHEM,STELLENBOSCH 7600,SOUTH AFRICA

来源：

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS | 1991年 / 08期

关键词：

D O I：

10.1039/dt9910002007

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The compound [Me3N(CH2)6NMe3]2[Mo8O26].2H2O crystallizes from an aqueous solution of sodium molybdate and [Me3N(CH2)6NMe3]Cl2, slightly acidified with hydrochloric acid. The crystals are monoclinic, space group P2(1)/n with a = 12.42(1), b = 12.897(3), c = 15.74(1) angstrom, beta = 106.41(5)-degrees and Z = 2. The structure was determined by direct methods and refined by least squares to R = 0.030 for 3153 observed reflections and 315 parameters. The [Mo8O26]4- anion is composed of six MoO6 octahedra interlinked along edges and two MoO5 trigonal bipyramids each sharing two edges with the octahedra. This is different from the previously observed alpha and beta-isomers of [Mo8O26]4- and lends credance to one of the proposed mechanisms for their interconversion.

引用

页码：2007 / 2011

页数：5