Acta Cryst. (2004). E60, m1237-m1239  [ doi:10.1107/S160053680401921X ]

[Cu₄^ICu^II(CN)₆(DMF)₄]_n (DMF is N,N'-dimethylformamide): redetermination and topological analysis of a mixed-valence copper-cyanide coordination polymer with a unique six-connected self-penetrating network

X.-J. Zhao, S. R. Batten and M. Du

Abstract: The title coordination polymer, poly[[tetrakis(N,N'-dimethylformamide)pentacopper(I,II)]-tetra-₂-cyano-di-₃-cyano], [Cu₅(CN)₆(C₃H₇NO)₄]_n, whose structure [Peng & Liaw (1986). Inorg. Chim. Acta, 113, L11-L12] has been redetermined using CCD data, contains four crystallographically independent copper centres, including three Cu^I ions with tetrahedral or linear geometries and one Cu^II ion in an octahedral environment. These copper centres are connected by bidentate and tridentate cyanide bridges to form a unique self-penetrating network with 4⁴6¹⁰8 topology, which has been analyzed in detail. Three of the Cu atoms have site symmetries of , 2 and 2.

Online 13 August 2004

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