Acta Crystallographica Section C

Crystal Structure Communications

Volume 63, Part 1 (January 2007)

metal-organic compounds

rb3021 scheme

Acta Cryst. (2007). C63, m22-m26 [ doi:10.1107/S010827010605102X ]

catena-Poly[[bis(₂-4-methylbenzoato-²O:O')disilver(I)(Ag-Ag)]-₂-di-2-pyridylamine-²N²:N^2'] and catena-poly[[(di-2-pyridylamine-N²)(₂-4-nitrobenzoato-²O:O')disilver(I)(Ag-Ag)]-₃-4-nitrobenzoato-³O:O':O']

M. Odoko, T. Ise and N. Okabe

Abstract: Both title compounds are polynuclear polymeric complexes with binuclear units. In the former compound, [Ag₂(C₈H₇O₂)₂(C₁₀H₉N₃)]_n, the two Ag^I atoms display distorted square-planar coordinations. This compound contains a twofold axis and a crystallographic inversion centre, and di-2-pyridylamine (DPA) ligands crosslink adjacent binuclear units to form infinite polymeric chains. Crystal packing is stabilized by van der Waals interactions and partial [pi] - [pi] stacking interactions between the chains. The latter compound, [Ag₂(C₇H₄NO₄)₂(C₁₀H₉N₃)]_n, contains crystallographic inversion centres and the two Ag^I atoms exhibit two types of distorted square-pyramidal coordination. Ag-Ag argentophilic interactions and Ag-O crosslinking between adjacent binuclear units contribute to form infinite polymeric chains. Weak [pi] - [pi] stacking interactions are observed in the polymer chain. Crystal packing is stabilized by C-HO hydrogen bonds and by weak [pi] - [pi] stacking interactions.

Formula: [Ag₂(C₈H₇O₂)₂(C₁₀H₉N₃)] and [Ag₂(C₇H₄NO₄)₂(C₁₀H₉N₃)]


	Structure factor file (CIF format) (131.6 kbytes) [ doi:10.1107/S010827010605102X/rb3021Isup2.hkl ] Contains datablock I

	Structure factor file (CIF format) (258.6 kbytes) [ doi:10.1107/S010827010605102X/rb3021IIsup3.hkl ] Contains datablock II

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