希土元素钼钨硅多元杂多配合物的合成、结构和性质研究 |
STUDY ON SYNTHESIS, CRYSTAL STRUCTURE AND CHARACTER OF LANTHANIDE POLYBASIC HETEROPOLY COMPLEXES WITH SILICON—MOLYBDEN UM—TUNGSTEN |
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摘要: 本文报道了标题系列配合物K10H3[Ln(SiMo11-nWnO39)2]·mH2O(n=2、4;Ln=La3+、Ce3+、Pr3+、Nd3+、Sm3+、Eu3+、Gd3+、Dy3+ |
关键词: 杂多配合物 合成 希土元素 钼 钨 |
基金项目: 国家自然科学基金;北京中关村地区联合分析测试中心基金 |
Abstract: A series of polybassc lanthanide heteropoly complexes K10H3[Ln(SiMo11-nWnO39)2]·mH2O(where n = 2,4; Ln = La3+、Ce3+、Pr3+、Nd3+、Sm3+、Eu3+、Gd3+、Dy3+、Yb3+) were prepared. Their molecula formula were decided by elemental analysis and thermogravimctric analysis. Crystal structure and molecula structure of K10H3[La(SiMo9W2O392]·29H2O are determined using X-Ray single crystal analysis, space group P21/n, a=17.224(6)Å, b= 26.952(11)Å c=21.158(7)Å, β=103.76(3)°, Z=4, V= 9540.17(6)Å3, F(000)= 8663. Thermal decomposition arc investigated by means of IR spectrs, X-Ray powder diffraction and differential therm-al-thermogravimetric analysis. The results of acid-base titration show the complexes arc stable in the range pH = 2.5-6.1, in the meantime, oxidation-reduction, TR spectra, UV spectra, XPS spectra and X-Ray powder diffraction character of these complexes were also discussed. |
Keywords: heteropoly complex synthesis ianthanide molybdenum tungsten |
投稿时间:1991-01-09 |
摘要点击次数: 1425 |
全文下载次数: 1850 |
周百斌,单永奎,刘宗绪,张锡龙.希土元素钼钨硅多元杂多配合物的合成、结构和性质研究[J].无机化学学报,1992,8(3):315-320. |
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