Synthesis, structure, and magnetic properties of (n-Bu4N)2[{Ni(MeoH)2}2{Mo(NO)}2(μ3-OH)2(μ-OMe)4{Mo5O13(OMe)4(NO)}2], a new type of polyoxometalate incorporating a rhomb-like cluster

被引：15

作者：

Villanneau, R

Proust, A

Robert, F

Veillet, P

Gouzerh, P

机构：

[1] Univ Paris 06, Lab Chim Inorgan & Mat Mol, CNRS ESA 7071, F-75252 Paris 05, France

[2] Univ Paris Sud, CNRS UMR 8622, Inst Elect Fondamentale, F-91405 Orsay, France

来源：

INORGANIC CHEMISTRY | 1999年 / 38卷 / 22期

关键词：

D O I：

10.1021/ic990480z

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The oxo-nitrosyl compound (n-Bu4N)(2)[{Na(MeOH)}Mo5O13(OMe)(4)(NO)]. 3MeOH reacts with various nickel(II) salts in methanol to give (n-Bu4N)(2)[{Ni(MeOH)(2)}(2){Mo(NO)}(2)(mu(3)-OH)(2)(mu-OMe)(4){Mo5O13(OMe4(NO)}(2)] which has been characterized by single-crystal X-ray diffraction analysis and magnetic susceptibility measurements. This reaction shows the dual behavior of the defect Lindqvist-type species [Mo5O13(OMe)(4)(NO)](3-), which can act both as a ligand and as a source of the {Mo(NO)}(3+) unit. Furthermore, the reaction is reminiscent of the dissolution-precipitation of oxide supports in the preparation of supported catalysts and provides a novel illustration of the potential of polyoxometalates for probing the reactivity of oxides. The new polyoxomolybdate is made of a central rhomb-like (Ni2Mo2) cluster linked to two terminal [Mo5O13(OMe)(4)(NO)](3-) units, each terminal cluster being linked to a molybdenum center of the central unit through two oxo ligands. The two Ni(II) ions are coupled in a ferromagnetic way (J = 13.1 cm(-1)).

引用

页码：4981 / 4985

页数：5

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