Issue 30, 2014

Polar metal phosphonate containing unusual μ4-OH bridged double chains showing canted antiferromagnetism with large coercivity

Abstract

The first examples of metal phosphonates based on an asymmetrical 2-(phosphonomethyl)benzoic acid (2-pmbH3) are reported, namely, Co24-OH)(2-pmb) (1) and Cu43-OH)2(2-pmb)2 (2). Both crystallize in polar space groups and show layered structures. Compound 1 contains unusual μ4-OH bridged double chains of {Co24-OH)O3}, inter-connected by the phosphonate groups. In 2, chair-like tetramers of Cu43-OH)O2 are linked by both carboxylate and phosphonate groups. Magnetic studies reveal that compound 1 experiences canted antiferromagnetic ordering below 31.0 K with a large coercivity of 4.3 Tesla at 2 K.

Graphical abstract: Polar metal phosphonate containing unusual μ4-OH bridged double chains showing canted antiferromagnetism with large coercivity

Supplementary files

Article information

Article type
Communication
Submitted
05 Aug 2013
Accepted
13 Feb 2014
First published
24 Feb 2014

Chem. Commun., 2014,50, 3979-3981

Polar metal phosphonate containing unusual μ4-OH bridged double chains showing canted antiferromagnetism with large coercivity

X. Yang, S. Bao, M. Ren, N. Hoshino, T. Akutagawa and L. Zheng, Chem. Commun., 2014, 50, 3979 DOI: 10.1039/C3CC45976D

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