Self-assembly, thermal stability and photoluminescence of two mixed-ligand silver(i) networks via 2D → 2D and 2D → 3D parallel interpenetration of (4,4) nets

• DOI: 10.1039/c0ce00017e
• Publication Date: 2010-08-02T08:30:41Z
• Authors: Di Sun; Qin-Juan Xu; Chun-Yin Ma; Na Zhang; Rong-Bin Huang; Lan-Sun Zheng
• Keywords: Thermal Stability; Succinic acid

Two mixed-ligand silver(I) coordination polymers (CPs) [Ag2(dmapym)2(suc)·H2O]n (1) and [Ag2(dmapym)2(bdc)·2H2O]n (2), (dmapym = 2-amino-4,6-dimethylpyrimidine, H2suc succinic acid, H2bdc 1,3-benzenedicarboxylic acid), were synthesized characterized. The structure of 1 presents an argentophilic interaction enhanced 2-crossing [2]-catenane motif formed between pairs parallel interpenetrating 2D 44-sql nets. For 2, as the dicarboxylate changes from flexible to rigid V-shaped H2bdc, each highly undulated net was penetrated in by two nearest neighbouring ones thus overall → 3D network is formed. geometries flexibility dicarboxylates influence environments metal ions arrangement ligands determine structures CPs. photoluminescent thermal properties 2 have also been investigated.