Synthesis, Crystal Structure, and Luminescent Properties of Ag(I) Coordination Polymer with Tricarboxylic Acid and Flexible N-donor Ligand

摘要

The reaction of AgNO3 with combinations of 1,3-bis(4-pyridyl) propane (bpp) and 1,3,5-benzenetricarboxylic acid (H(3)btc) in aqueous alcohol/ammonia at room temperature produces crystals of {[Ag-6(H2O)(2)(bpp)(6)] center dot (btc)(2) center dot 25H(2)O}(n) (I). Single crystal X-ray diffraction analysis reveals that the complex. consists of 1D infinite cationic chains of [Ag(bpp)](n)(n+) and [Ag(H2O)(bpp)](n)(n+) which are further linked into the cation layer of [Ag(bpp)](n)(n+) by Ag center dot center dot center dot pi interactions. The noncoordinated btc(3-) serves as template driving surrounding water molecules to aggregate into the anionic water layer. The neighboring anionic water layer and cationic layer were further alternately joined into a 3D sandwich-like framework by hydrogen bonding. In addition, the luminescent properties of. were investigated.