Acta Crystallographica Section C

Crystal Structure Communications

Volume 62, Part 7 (July 2006)

metal-organic compounds

 

Three oxo complexes with a tetranuclear [Cu₄(₂-Cl)₆(₄-O)] unit

P. Cortés, A. M. Atria, M. T. Garland and R. Baggio

Abstract: The three title compounds, namely 4-phenyl-1H-imidazolium hexa-₂-chloro-chloro-₄-oxo-tris(4-phenyl-1H-imidazole-N¹)tetracopper(II) monohydrate, (C₉H₉N₂)[Cu₄Cl₇O(C₉H₈N₂)₃]·H₂O, hexa-₂-chloro-₄-oxo-tetrakis(pyridine N-oxide-O)tetracopper(II), [Cu₄Cl₆O(C₅H₅NO)₄], and hexa-₂-chloro-tetrakis(2-methyl-1H-imidazole-N¹)-₄-oxo-tetracopper(II) methanol trisolvate, [Cu₄Cl₆O(C₄H₆N₂)₄]·3CH₄O, exhibit the same Cu₄OCl₆ framework, where the O atom at the centre of an almost regular tetrahedron bridges four copper cations at the corners. This group is in turn surrounded by a Cl₆ octahedron, leading to a rather globular species. This special arrangement of the Cu^II cations results in a diversity of magnetic behaviours.

Formula: (C₉H₉N₂)[Cu₄Cl₇O(C₉H₈N₂)₃]·H₂O, [Cu₄Cl₆O(C₅H₅NO)₄] and [Cu₄Cl₆O(C₄H₆N₂)₄]·3CH₄O

	Structure factor file (CIF format) (369.0 kbytes) [ doi:10.1107/S0108270106021354/dn3008Isup2.hkl ] Contains datablock I
	Structure factor file (CIF format) (513.9 kbytes) [ doi:10.1107/S0108270106021354/dn3008IIsup3.hkl ] Contains datablock II
	Structure factor file (CIF format) (307.3 kbytes) [ doi:10.1107/S0108270106021354/dn3008IIIsup4.hkl ] Contains datablock III

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