Spin glass behaviour in a 1D mixed molybdenum-vanadium heteropolyoxometalate-bridged coordination polymer

被引：65

作者：

Liu, CM ^{[1
]}

Luo, JL

Zhang, DQ

Wang, NL

Chen, ZJ

Zhu, DB

机构：

[1] Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100080, Peoples R China

[2] Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China

来源：

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY | 2004年 / 24期

关键词：

nickel; hydrothermal synthesis; polyoxometalate; crystal structure; magnetic properties;

D O I：

10.1002/ejic.200400593

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A 1D trimetallic coordination polymer containing mixed molybdenum-vanadium heteropolyoxometalate bridges, {[Ni(phen)(2)(H2O)](2) [Ni(phen)(2)] [(V8Mo6Mo2O40)-Mo-IV-Mo-VI-O-V(PO4)[Ni(phen)(2)(H2O)](2)[(V8Mo6Mo2O40)-Mo-IV-Mo-VI-O-V(PO4)(2)]}.5H(2)O.2EtOH (1) (phen=1,10-phenanthroline, EtOH = ethanol), has been synthesised hydrothermally. An X-ray crystallographic study revealed that I is composed of ID zigzag chains of {[Ni(phen)(2)(H2O)](2)[Ni(phen)(2)][(V8Mo6Mo2O40)-Mo-IV-Mo-VI-O-V(PO4)]}(n)(n+) cations, {[Ni(phen)(2)(H2O)](2) [(V8Mo6Mo2O40)-Mo-IV-Mo-VI-O-V(PO4)(2)]}(-) anions and solvent molecules. Both the cation and the anion in 1 are mixed molybdenum-vanadium heteropolyoxometalates with covalently linked nickel complex fragments. Magnetic investigations of I indicate spin glass behaviour and several magnetic transitions occur at low temperatures (below 20 K). ((C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004).

引用

页码：4774 / 4779

页数：6

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