Jia Zhang, Chongchen Wang, Peng Wang
Sep 9, 2015
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0
Influential Citations
11
Citations
Journal
Transition Metal Chemistry
Abstract
Three silver-based complexes, namely [Ag2(bpa)2](Brtp)·6H2O (1), [Ag3(bpa)3](Hdcdcpb)·9H2O (2), and [Ag2(bpa)2(oa)]·2H2O (3), were synthesized via the reactions of AgNO3, 1,2-bis(4-pyridyl)ethane (bpa), and 2-bromoterephthalic acid (H2Brtp), 2,3-dicarboxyl-(2′,3′-dicarboxylazophenyl)benzene (H4dcdcpb) or 4,4′-oxybisbenzoic acid (H2oa) in aqueous alcohol/ammonia solution at room temperature. Complexes 1 and 2 consist of 1D infinite cationic [Ag(bpa)]nn+ chains, interspersed with non-coordinated and completely deprotonated Brtp2− or partly deprotonated Hdcdcpb3− anions acting as discrete counter-ions to balance the charge. The lattice water molecules are situated among the framework of the crystal structure and show rich hydrogen-bonding interactions, while the presence of Ag…N and Ag…Ag contacts strengthens the frameworks. Complex 3 consists of 2D neutral [Ag2(bpa)2(oa)] in which the completely deprotonated oa2− units both act as bidentate ligands and as counter-ions. All three complexes exhibit luminescent properties, which can be assigned to ligand-to-metal charge transfer and Ag…Ag interactions.