Synthesis, Spectroscopic and Structural Studies on Vanadium(V) Periodates

被引:0
|
作者
Hector, Andrew L. [1 ]
Levason, William [1 ]
机构
[1] Univ Southampton, Sch Chem, Southampton SO17 1BJ, Hants, England
关键词
Vanadium; Periodate; EXAFS spectroscopy; ABSORPTION FINE-STRUCTURE; RARE-EARTH IODATES; HYDROTHERMAL SYNTHESIS; TELLURATE COMPLEXES; CRYSTAL-STRUCTURES; V-51; NMR; THORIUM; EXAFS;
D O I
10.1002/ejic.201001242
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Reactions of V2O5 or NH4VO3 with periodic acid under basic conditions followed by acidification result in precipitates of general formulaM(5)V(4)I(2)O(19)(OH)center dot nH(2)O (M = Na, n = 10; M = K, n = 5; M = Rb, n = 4; M = Cs, n = 3; M = NH4, n = 11). These are amorphous, and attempts at crystallisation failed, but spectroscopic measurements and analysis show similar features and compositions throughout this series of compounds. V and I K-edge extended X-ray absorption fine structure (EXAFS) spectra show a polymeric structure containing edge-linked octahedral periodate and square-pyramidal vanadyl groups.
引用
收藏
页码:2132 / 2137
页数:6
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