Synthesis, crystal structure and properties of novel composite complex:: [La(NMP)4(H2O)4][HSiMo12O40]•2NMP•H2O

被引：6

作者：

Niu, JY

Han, QX

Wang, JP ^{[1
]}

机构：

[1] Henan Univ, Sch Chem & Chem Engn, Kaifeng 475001, Peoples R China

[2] Nanjing Univ, State Key Lab Coordinat Chem, Nanjing 210093, Peoples R China

来源：

JOURNAL OF COORDINATION CHEMISTRY | 2003年 / 56卷 / 11期

关键词：

crystal structure; composite complex; hydrogen bonding;

D O I：

10.1080/00958972310001593415

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A new composite complex of [La(NMP)(4)(H2O)(4)][HSiMo12O40] . 2NMP . H2O (NMP = N-methyl-2-pyrrolidone) was synthesized and characterized by IR, UV, ESR, TG-DTA and single crystal structural analysis. The water and organic ligands (NMP) coordinate directly with La(III) to form a dodecahedral complex and the SiMo12O404- anion is the counter ion. IR and X-ray analysis show that there is strong interaction between the polyoxometalate and organic donors. The complex is strongly photosensitive under irradiation with sunlight, resulting in a charge-transfer complex by oxidation of the N-methyl-2-pyrrolidone and reduction of the polyoxometalate. Low temperature ESR spectra indicate thermal electron delocalization among the Mo atoms in the title compound.

引用

页码：1003 / 1012

页数：10

共 36 条

[1] STRUCTURES AND PROPERTIES OF NEW CHARGE-TRANSFER COMPOUNDS DERIVED FROM ORGANIC DONOR MOLECULES AND INORGANIC POLYOXOANIONS PM12O40(3-) AND M6O19(2-), WHERE M = MO, W [J].