Abstract
Yellow crystals of the coordination polymers (CP) [Ag(qox)NO3], 1 [Ag(pyzca)], 2 were obtained by the reaction of AgNO3, quinoxaline (qox) or pyrazinecarboxylic acid (pyzcaH), respectively. The crystal structure of 1 displays 1D-extended chain of [Ag(qox)]n with NO3 coordinated to every Ag atom. The 1D-chains of 1 are interconnected by strong hydrogen bonds, π–π stacking and short contacts developing two dimensional sheets containing channels. Furthermore, the overall packing arrangement of 1 results 3D topology with corrugated network. The Ag atom in 2 acquires tetrahedral geometry while each pyzca ligand provides three donor sites connected to three Ag atoms. The structure of CP 2 displays 1D-extended helical chain of [Ag(pyzca)]n. The 3D-packing of the CP 2 creates nanometer pores. The luminescence properties of 1 and 2 were discussed.
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