Synthesis and characterizations of a novel dia-type Ag–BPT coordination polymer with tetranuclear motifs as jointing points (BPT = 3,5-bis(3-pyridyl)-1,2,4-triazole)

The hydrothermal reaction of AgNO3 and 4-amino-3,5-bis(3-pyridyl)-1,2,4-triazole (NH2-BPT) generated an unprecedented three-dimensional coordination polymer {[Ag2(BPT)] · NO3}n (1). The crystal structure reveals that two independent Ag(I) centers are linked via cisoid μ5-BPT anions to form a unique tetranuclear cluster, which is further interconnected to four neighbors to give a 3D cationic framework with dia-topology.