Issue 7, 2009

[M(OOCC6H4PO3H)(H2O)] (M(II) = Mn, Co, Ni): layered metal phosphonates showing variable magnetic behavior

Abstract

Three novel isomorphous transition metal phosphonate compounds with formula [M(OOCC6H4PO3H)(H2O)] [M(II) = Mn (1), Co(2), Ni (3)] were prepared through hydrothermal reaction of 2-carboxyphenylphosphonic acid and metal salts. Within the structure, the {M2O2} dimers made up of edge-sharing {MO6} octahedra are connected by carboxylate and/or phosphonate groups, leading to a 2-D layer. The phenyl groups fill in the inter-layer spaces. Magnetic measurements reveal that dominant antiferromagnetic interactions are observed in compounds 1 and 2, while for compound 3, the dominant ferromagnetic interaction leads to a spontaneous ferromagnetic long range ordering below Tc = 4.0 K.

Graphical abstract: [M(OOCC6H4PO3H)(H2O)] (M(II) = Mn, Co, Ni): layered metal phosphonates showing variable magnetic behavior

Supplementary files

Article information

Article type
Paper
Submitted
24 Nov 2008
Accepted
23 Jan 2009
First published
02 Mar 2009

CrystEngComm, 2009,11, 1255-1260

[M(OOCC6H4PO3H)(H2O)] (M(II) = Mn, Co, Ni): layered metal phosphonates showing variable magnetic behavior

J. Li, T. D. Keene, D. Cao, S. Decurtins and L. Zheng, CrystEngComm, 2009, 11, 1255 DOI: 10.1039/B820935A

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