Influence of Different Organic Carboxylate Anions on the Crystal Structure of Silver（Ⅰ）Coordination Polymers

• 作者: GUO Guang-Liang WANG Chong-Chen WANG Peng
• 来源期刊: 结构化学
• 学科: 化学
• 关键词: 晶体结构 硝酸银 有机羧酸盐 配位聚合物 离子对 有机阴离子 联吡啶 水分子
• 年，卷（期）: 2012,（7）
• 页码范围: 1008-1020
• 页数: 13页
• 分类号: O614.121|TQ131.22
• 语种: 英文

摘要

The reaction of AgNO3 , 4,4′-bipyridine （bpy） and 2,2′-bipyridine-3,3′-dicarboxylic acid （H2bpdc）/2,2′-biquinoline-4,4′-dicarboxylic acid （H2bqdc）/1,3-benzenedicarboxylic acid （H2bdc） gave rise to block-like crystals of [Ag4（bpy）2（bpdc）2]·13H2O（1）, [Ag2（bpy）（bqdc）（H2O）]·4.5H2O（2） and [Ag2（bpy）2（H2O）2]（bdc）·3H2O（3） by slow evaporation. All the three complexes contain sandwich-like crystal structures, in which anionic sheets built up from different anions （bpdc2- , bqdc2- and bdc2- ） and lattice water molecules via rich hydrogen-bonding interactions are inserted between the cationic silver complex layers, and the abundant Ag···Ag, Ag···N and π-π stacking interactions further strengthen the 3D frameworks. The lattice water molecules are situated among the framework of crystal structure and stabilized by rich hydrogen-bonding interactions, and lattice water molecules may play a role in the orientation of organic anions in the crystal packing. Additionally, the thermal properties of 1, 2 and 3 were also discussed in detail.