US EPA

914389 

Journal Article 

A chiral copper(II) inverse-9-metallacrown-3 complex: Synthesis, crystal structure, ferroelectric and magnetic properties 

Liu, GX; Guo, W; Nishihara, S; Ren, XM 

2011 

1 

Inorganica Chimica Acta
ISSN: 0020-1693
EISSN: 1873-3255 

368 

1 

165-169 

10.1016/j.ica.2010.12.067 

WOS:000287729400021 

http://linkinghub.elsevier.com/retrieve/pii/S0020169311000028
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The reaction of phenyl 2-pyridyl ketoxime (PhPyCNOH) with Cu(NO3)(2)center dot 3H(2)O in methanol results in the chiral trinuclear complex [Cu-3(OH)(PhPyCNO)(3)(NO3)(CH3OH)]center dot(NO3) (1), which has been characterized by elemental analysis, IR spectra and single-crystal X-ray diffraction. The structure of 1 exhibits a triangle of Cu(II) ions, centered by a triply bridging hydroxo ligand and with three edge-bridging oximate groups from the three PhPyCNO ions. Preliminary variable-temperature magnetic susceptibility studies reveal an antiferromagnetically-coupled system showing antisymmetric exchange. Complex 1 crystallizes in an acentric space group (P2(1)) that belongs to a polar point group, which displays second harmonic generation response and ferroelectric behavior, and provides a new strategy for designing functional coordination complexes. (C) 2011 Elsevier B.V. All rights reserved. 

Oxime complex; Crystal structure; Ferroelectric properties; Magnetic properties