A 2-D Ag(I) complex with 4-bte containing infinite tubes (bte=1,2-bis(1,2,4-triazole-1-yl)ethane)

Using the flexible ligand 1,2-bis(1,2,4-triazole-1-yl)ethane (bte) and corresponding Ag(I) salts, a new two-dimensional (2-D) silver(I) complex {[Ag4(4-bte)(2-H2O)2](SiF6)2}n (1) has been isolated. 1 crystallizes in the orthorhombic Pcca space group. The bte adopts an unusual 4-tetradentate coordination mode to link neighboring AgI atoms forming infinite 1D Ag-bte tubular structures. Further neighboring Ag-bte tubes are inter-connected by relatively long Ag-(2-H2O) bonds forming a 2-D layered structure. Solid-state fluorescence spectrum of 1 shows that the excitation peak is at 320 nm while the maximum emission peak is at 425 nm.