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Issue 11, 2010
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Synthesis, structure, and magnetic properties of bis(monosubstituted-pyrazine)dihalocopper(ii)

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The investigation into synthesizing new metal organic compounds with the general formula Cu(S-pyrazine)X2 using monosubstituted pyrazines has led to the generation of a new family of compounds Cu(S-pyrazine)2X2 with similar structure and magnetic properties. The bis(S-pyrazine)dihalocopper(II) compounds [where S = Cl, CN, OCH3, and OCH2CH3 and halide = Cl or Br] have been characterized by IR, powder X-ray diffraction, single-crystal X-ray diffraction, and temperature dependent magnetic susceptibility. The bis(chloropyrazine)dihalocopper(II) compounds crystallize in the monoclinic space group P21/n while the methoxy and ethoxy analogues crystallize in the triclinic space group P[1 with combining macron]. This structurally related family of compounds exhibit antiferromagnetic interactions with exchange constants of approximately −25 K for the chloride analogues and −50 K for the bromide analogues.

Graphical abstract: Synthesis, structure, and magnetic properties of bis(monosubstituted-pyrazine)dihalocopper(ii)

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Article information

05 Nov 2009
09 Jan 2010
First published
04 Feb 2010

Dalton Trans., 2010,39, 2785-2797
Article type

Synthesis, structure, and magnetic properties of bis(monosubstituted-pyrazine)dihalocopper(II)

S. N. Herringer, A. J. Longendyke, M. M. Turnbull, C. P. Landee, J. L. Wikaira, G. B. Jameson and S. G. Telfer, Dalton Trans., 2010, 39, 2785
DOI: 10.1039/B922824A

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