Acta Crystallographica Section C

Crystal Structure Communications

Volume 60, Part 12 (December 2004)

fg1780 scheme

Acta Cryst. (2004). C60, m605-m608 [doi:10.1107/S0108270104026502]

catena-Poly[[(di-2-pyridylamine)silver(I)]--nicotinato] and catena-poly[[(di-2-pyridylamine)silver(I)]--2,6-dihydroxybenzoato]

Y. Wang and N. Okabe

Abstract: In catena-poly[[(di-2-pyridylamine- [bold kappa] ²N,N')silver(I)]- [bold mu] -nicotinato-²N:O], [Ag(C₆H₄NO₂)(C₁₀H₉N₃)]_n, the Ag^I atom is tetracoordinated by two N atoms from the di-2-pyridylamine (BPA) ligand [Ag-N = 2.3785 (18) and 2.3298 (18) Å] and by one N atom and one carboxylate O atom from nicotinate ligands [Ag-N = 2.2827 (15) Å and Ag-O = 2.3636 (14) Å]. Bridging by nicotinate N and O atoms generates a polymeric chain structure, which extends along [100]. The carboxyl O atom not bonded to the Ag atom takes part in an intrachain C-HO hydrogen bond, further stabilizing the chain. Pairs of chains are linked by N-HO hydrogen bonds to generate ribbons. There are no [bold pi] - interactions in this complex. In catena-poly[[(di-2-pyridylamine- [bold kappa] ²N,N')silver(I)]- [bold mu] -2,6-dihydroxybenzoato-²O¹:O²], [Ag(C₇H₅O₄)(C₁₀H₉N₃)]_n, the Ag^I atom has a distorted tetrahedral coordination, with three strong bonds to two pyridine N atoms from the BPA ligand [Ag-N = 2.286 (5) and 2.320 (5) Å] and to one carboxylate O atom from the 2,6-dihydroxybenzoate ligand [Ag-O = 2.222 (4) Å]; the fourth, weaker, Ag-atom coordination is to one of the phenol O atoms [AgO = 2.703 (4) Å] of an adjacent moiety, and this interaction generates a polymeric chain along [100]. Pairs of chains are linked about inversion centers by N-HO hydrogen bonds to form ribbons, within which there are [bold pi] - interactions. The ribbons are linked about inversion centers by pairs of C-HO hydrogen bonds and additional - interactions between inversion-related pairs of 2,6-dihydroxybenzoate ligands to generate a three-dimensional network.

Formula: [Ag(C₆H₄NO₂)(C₁₀H₉N₃)] and [Ag(C₇H₅O₄)(C₁₀H₉N₃)]

Online 11 November 2004


	Structure factor file (CIF format) (173.1 kbytes) Contains datablock I

	Structure factor file (CIF format) (174.9 kbytes) Contains datablock II

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