Rational assembly and luminescence properties of 2 and 3D organometallic networks using silver(I) 4-pyridylethynide and 5-pyrimidylethynide complexes as building units

摘要: 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) [(5-Pyrim-C2Ag)·3AgNO3·H2O] (3). In both 1 2, the [4-C5H4N(CC)Ag4]3+ units aggregate generate linear silver chains through argentophilic interactions, which are further connected Ag–N(pyridyl) coordination bonds afford 2D grids, finally linked by trifluoroacetate or nitrate groups form a rigid 3D network. However in 3, each [5-C4H3N2(CC)Ag4]3+ unit interacts with two other Ag–N(pyrimidyl) construct honeycomb-like networks, also It is demonstrated that modes of organic play key role controlling structures organometallic networks based on complexes.