Diverse structural assemblies of silver–thiophene-2,5-dicarboxylate coordination complexes contribute to different proton-conducting performances
作者:Xiao-Feng Zheng、Wen-Qiang Li、Jun Du、Xian-Zhu Luo、Miao-Miao Liu、Yang Yu、Lai-Jin Tian
DOI:10.1039/c6ce01689h
日期:——
diversity of the complexes results from the different neutral ligands in the structures, which has an important impact on the proton conductivities of the complexes. The complexes exhibited superprotonic conductivities of 1.99 × 10−2 S cm−1 for 1, 4.25 × 10−3 S cm−1 for 2 and 1.98 × 10−3 S cm−1 for 3 at room temperature in a KNO3–K4Fe(CN)6–K3Fe(CN)6 electrolyte. The proton conductivities of polymer films
三个2,5-tpa络合物[Ag(PPh 3)2(2,5-tpa)] n(1),[Ag 2(2,5-tpa)(2-apy)2 ] n(2)和[已获得Ag 2(2,5-tpa)(hmt)2 }·3H 2 O] n(3)并通过单晶X射线分析,元素分析,IR光谱,TG和质子电导率进行了表征分析,其中2,5-tpa代表噻吩-2,5-二羧酸二阴离子,PPh 3是三苯基膦,2-apy是2-氨基吡啶,hmt是六亚甲基四胺。1–3的结构采用1D到3D框架。配合物1是一维三明治状聚合物,包含由[Ag(2,5-tpa)]单元和PPh 3 “面包层”组成的一维半对称火腿骨架。在络合物2中,2,5-tpa配体桥接Ag原子,形成2D鱼骨形层,具有弱π⋯π相互作用和分子内N–H⋯O氢键。在3中,2,5-tpa配体桥接两个Ag-hmt层以形成3D波浪结构。进行了拓扑分析,结果是5-c nov网,3,4-c 6·10 2