离子热合成法在离子液体中制备多金属氧酸盐。

Preparation of polyoxometalates in ionic liquids by ionothermal synthesis.

机构信息

Key Laboratory of Polyoxometalate Science of Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, PR China.

出版信息

Dalton Trans. 2010 Feb 21;39(7):1740-4. doi: 10.1039/b905079e. Epub 2009 Dec 21.

DOI:10.1039/b905079e

PMID:20449416

Abstract

Ionothermal synthesis was applied to the formation of polyoxometalates (POMs) and two new compounds EMIMNa(9)[WFe(9)(micro(3)-O)(3)(micro(2)-OH)(6)O(4)H(2)O(SiW(9)O(34))(3)].7H(2)O (, EMIMNa(9)[].7H(2)O, EMIM = 1-ethyl-3-methylimidazolium) and EMIM[SiMo(12)O(40)].12H(2)O (), have been successfully produced in the ionic liquid (IL) EMIMBr. They were characterized by single-crystal X-ray diffraction, elemental analysis, UV-vis, IR and TG analysis. Furthermore, the magnetic properties of and the electrochemical properties of were studied. is a high-nuclear transition metal substituted polyoxometalate (TMSP) and the unprecedented polyoxoanion of is composed of three alpha-SiW(9)O(34) Keggin moieties connected by a {WFe(9)} cluster core. is a heteropolyoxometalate with the polyoxoanion of alpha-Keggin type.

摘要

离子热合成被应用于多金属氧酸盐（POMs）的形成，两种新化合物 EMIMNa(9)[WFe(9)(μ3-O)(μ2-OH)(6)O(4)H(2)O(SiW(9)O(34))(3)].7H(2)O (, EMIMNa(9)[].7H(2)O, EMIM = 1-ethyl-3-methylimidazolium) 和 EMIM[SiMo(12)O(40)].12H(2)O ()，在离子液体 EMIMBr 中成功合成。它们通过单晶 X 射线衍射、元素分析、UV-vis、IR 和 TG 分析进行了表征。此外，还研究了和的磁性和电化学性质。是一种多核过渡金属取代的多金属氧酸盐（TMSP），前所未有的聚氧阴离子由三个 α-SiW(9)O(34) Keggin 基团通过 {WFe(9)} 簇核连接而成。是一种具有 α-Keggin 型多氧阴离子的杂多金属氧酸盐。