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A novel double-chain silver(I) coordination polymer: catena-poly[[[?-aqua-aqua-disilver(I)]-bis-(?(3)-5-methyl-pyrazine-2-carboxyl-ato)] dihydrate].

ABSTRACT: In the title silver(I) coordination polymer, {[Ag(2)(C(6)H(5)N(2)O(2))(2)(H(2)O)(2)]·2H(2)O}(n), the [Ag(2)(?(2)-H(2)O)(H(2)O)] cores are extended by anti-parallel 5-methyl-pyrazine-2-carboxyl-ate (L) ligands, forming a novel double-chain structure. Both Ag(+) cations show a distorted square-pyramidal coordination. Ag1 is bonded to two water molecules, one L N atom, one N atom and one carboxylate O atom from a neighbouring L, whereas Ag2 is surrounded by two L N atoms, two L carboxylate O atoms and one bridging water molecule. O-H?O hydrogen-bonding inter-actions involving water clusters and carboxyl-ate O atoms link the mol-ecules into a three-dimensional supra-molecular architecture, which is further consolidated by weak C-H?O inter-actions and ?-? stacking inter-actions [centroid-centroid distance 3.643?(5)?Å].

SUBMITTER: Zhai B

PROVIDER: S-EPMC2959376 | biostudies-literature | 2008 Sep

REPOSITORIES: biostudies-literature

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A novel double-chain silver(I) coordination polymer: catena-poly[[[μ-aqua-aqua-disilver(I)]-bis-(μ(3)-5-methyl-pyrazine-2-carboxyl-ato)] dihydrate].

Zhai Bin B Zhang Xiangfei X Xu Maotian M

Acta crystallographica. Section E, Structure reports online 20080924 Pt 10

In the title silver(I) coordination polymer, {[Ag(2)(C(6)H(5)N(2)O(2))(2)(H(2)O)(2)]·2H(2)O}(n), the [Ag(2)(μ(2)-H(2)O)(H(2)O)] cores are extended by anti-parallel 5-methyl-pyrazine-2-carboxyl-ate (L) ligands, forming a novel double-chain structure. Both Ag(+) cations show a distorted square-pyramidal coordination. Ag1 is bonded to two water molecules, one L N atom, one N atom and one carboxylate O atom from a neighbouring L, whereas Ag2 is surrounded by two L N atoms, two L carboxylate O atoms ...[more]

PMID: 21201049

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