MOLYBDOTUNGSTOVANADATES [V2MONW(4-N)O19](4-)

被引:5
作者
HASTINGS, JJ [1 ]
HOWARTH, OW [1 ]
机构
[1] UNIV WARWICK,DEPT CHEM,COVENTRY CV4 7AL,W MIDLANDS,ENGLAND
来源
JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS | 1995年 / 17期
关键词
D O I
10.1039/dt9950002891
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The complete series of hexametalate anions [V2MonW(4-n)O-19](4-), with the two vanadiums cis and n = 0-4, has been identified in aqueous solution by V-51 NMR spectroscopy. The vanadium shifts and the pK(a) values both increase with increasing substitution of Mo for W. They correlate well with semiquantitative models, showing that somewhat greater changes arise from substitutions taking place in the V2O9 plane. A consistent preference is also found for like metal atoms to lie mutually cis.
引用
收藏
页码:2891 / 2893
页数:3
相关论文
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