Oligocyanometallic cords as building blocks in luminescent three-dimensional coordination polymers: [Ag_4Cd_2(tren)_2(CN)_6.5][Ag(CN)_1.5] and [Au_2Cd(tren)(CN)_4]·H_2O

摘要

The syntheses, structures and luminescent properties of two unusual mixed-metal coordination polymers, namely [Ag_4Cd_2(tren)_2(CN)_7.5][Ag(CN)_1.5] 1 and [Au_2Cd(tren)(CN)_4]·H_2O 2 (tren = tris(2-aminoethyl)amine), are presented. Both compounds contain abnormal metal cords of oligocyanometallic anions as building blocks wherein the d~10-d~10 interaction plays a crucial role in the metal-metal assembly.