The synthesis, magnetic properties and crystal structure of a Cu(II) methylenediphosphonate, [Cu2(O3PCH2PO3)]

被引：11

作者：

Burkholder, E

Golub, VO

O'Connor, CJ

Zubieta, J ^{[1
]}

机构：

[1] Syracuse Univ, Dept Chem, Syracuse, NY 13244 USA

[2] Univ New Orleans, Dept Chem, New Orleans, LA 70148 USA

来源：

INORGANICA CHIMICA ACTA | 2002年 / 340卷

基金：

美国国家科学基金会;

关键词：

Cu(II)-diphosphonatoalkane; framework structures; magnetic properties;

D O I：

10.1016/S0020-1693(02)01078-2

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The hydrothermal reaction of Cu(SO4)-5H(2)O, methylenediphosphonate and water in the mole ratio 1.0:1.5:4100 at 150 degreesC for 48 h yielded clear colorless crystals of [Cu-2(O3PCH2PO3)] (1). The structure of 1 is a three-dimensional framework constructed from chains of edge-sharing {CuO5} trigonal bipyramids linked through the {O3PCH2PO3}(4-) subunits. The magnetic data from 35 to 300 K were fit to the Heisenberg linear antiferromagnetic chain model, giving g = 1.98 and J/k(B) = - 35.9 K. At lower temperatures, a Neel transition suggests three-dimensional long-range ordering. Crystal data: CH2Cu2O6P2, orthorhombic, Pnma, a = 13.698(1), b = 8.0094(6), c = 4.8950(4) Angstrom, V = 537.04(7) Angstrom(3), Z = 4, D-calc = 3.699 g cm(-3). (C) 2002 Elsevier Science B.V. All rights reserved.

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页码：127 / 132

页数：6

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