Synthesis, Crystal Structure and Photoluminescent Properties of a New Uranium-containing Silicotungstate

被引:0
作者
Tan, Rongxin [1 ]
Cui, Shuxin [1 ]
Wang, Hui [1 ]
Jiang, Yaping [2 ]
Song, Wenzhi [2 ]
机构
[1] Mudanjiang Normal Univ, Coll Chem & Chem Engn, Mudanjiang 157012, Peoples R China
[2] Jilin Agr Univ, China Japan Union Hosp, Dept Stomatol, Changchun 130122, Peoples R China
来源
ADVANCED ENGINEERING MATERIALS III, PTS 1-3 | 2013年 / 750-752卷
关键词
Polyoxometalate; Uranium; Crystal structure; Photoluminescent properties; URANYL; POLYOXOTUNGSTATES;
D O I
10.4028/www.scientific.net/AMR.750-752.1840
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
A new uranium-containing silicotungstate A-beta-Na-14[Na-2(UO2)(2)(SiW9O34)(2)]center dot 43H(2)O (1) was synthesized in an aqueous solution. The compound was characterized by elemental analysis and infrared spectra analysis. A single-crystal X-ray analysis was carried out on crystal (1) which crystallizes in triclinic system, space group p (i) over bar, with a = 13.386 angstrom, b = 13.506 angstrom, c = 16.183 angstrom, alpha = 85.337 degrees, beta = 73.608 degrees gamma = 64.833 degrees and Z = 1. Polyanion (1) consists of two A-beta-SiW9 units which sandwich two uranium and two sodium ions, leading to a Keggin-type sandwich structure. The photoluminescent spectrum of (1) shows typical emission features of uranyl compounds.
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页码:1840 / +
页数:2
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