Tianle Zhang, Yuejie Hu, Jianxi Kong
Sep 21, 2010
Citations
0
Influential Citations
22
Citations
Journal
CrystEngComm
Abstract
4-Ethynylpyridine and 5-ethynylpyrimidine were utilized as ligands to synthesize three novel silver–ethynide complexes [(4-Py-C2Ag)3·6CF3CO2Ag·2H2O] (1), [(4-Py-C2Ag)2·4AgNO3] (2) and [(5-Pyrim-C2Ag)·3AgNO3·H2O] (3). In both 1 and 2, the [4-C5H4N(CC)Ag4]3+ units aggregate to generate linear silver chains through silver–ethynide and argentophilic interactions, which are further connected through Ag–N(pyridyl) coordination bonds to afford 2D grids, and finally linked by trifluoroacetate or nitrate groups to form a rigid 3D coordination network. However in 3, each [5-C4H3N2(CC)Ag4]3+ unit interacts with two other units through Ag–N(pyrimidyl) bonds to construct 2D honeycomb-like networks, and are also further connected by nitrate groups to generate a 3D network. It is demonstrated that the coordination modes of organic ligands play a key role in controlling the structures of the organometallic networks based on silver–ethynide complexes.