catena‐Poly[[(di‐2‐pyridylamine)silver(I)]‐μ‐nicotinato] and catena‐poly[[(di‐2‐pyridylamine)silver(I)]‐μ‐2,6‐dihydroxybenzoato] |
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Authors: | Yue Wang Nobuo Okabe |
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Abstract: | In catena‐poly(di‐2‐pyridylamine‐κ2N,N′)silver(I)]‐μ‐nicotinato‐κ2N:O], Ag(C6H4NO2)(C10H9N3)]n, the AgI 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—H?O hydrogen bond, further stabilizing the chain. Pairs of chains are linked by N—H?O hydrogen bonds to generate ribbons. There are no π–π interactions in this complex. In catena‐poly(di‐2‐pyridylamine‐κ2N,N′)silver(I)]‐μ‐2,6‐dihydroxybenzoato‐κ2O1:O2], Ag(C7H5O4)(C10H9N3)]n, the AgI 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 Ag?O = 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—H?O hydrogen bonds to form ribbons, within which there are π–π interactions. The ribbons are linked about inversion centers by pairs of C—H?O hydrogen bonds and additional π–π interactions between inversion‐related pairs of 2,6‐dihydroxybenzoate ligands to generate a three‐dimensional network. |
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