Yue Nancy L S, Jennings Michael C, Puddephatt Richard J
Department of Chemistry, University of Western Ontario, London, Canada N6A 5B7.
Dalton Trans. 2006 Aug 28(32):3886-93. doi: 10.1039/b605340h. Epub 2006 Jun 23.
The thiophene-based bis(N-methylamido-pyridine) ligand SC4H2-2,5-{C(=O)N(Me)-4-C5H4N}2 reacts with silver(I) salts AgX to give 1 : 1 complexes, which are characterized in the solid state as the macrocyclic complexes [Ag(2){SC4H2-2,5-(CONMe-4-C5H4N)2}2][X]2, which have the cis conformation of the C(=O)N(Me) group, when X = CF3CO2, NO3, or CF3SO3 but as the polymeric complex [Ag(n){SC4H2-2,5-(CONMe-4-C5H4N)2}n][X]n, with the unusual trans conformation of the C(=O)N(Me) group, when X = PF6. The bis(amido-pyridine) ligand SC4H2-2,5-{C(=O)NHCH2-3-C5H4N}2 reacts with silver(I) trifluoroacetate to give the polymeric complex [Ag(n){SC4H2-2,5-(CONHCH2-3-C5H4N)2}n][X]n, X = CF3CO2. The macrocyclic complexes contain transannular argentophilic secondary bonds. The polymers self assemble into sheet structures through interchain C=O...Ag and S...Ag bonds in [Ag(n){SC4H2-2,5-(CONMe-4-C5H4N)2}n][PF6]n and through Ag...Ag, C=O...Ag and Ag...O(trifluoroacetate)...HN secondary bonds in [Ag(n){SC4H2-2,5-(CONHCH2-3-C5H4N)2}n][CF3CO2]n.
基于噻吩的双（N-甲基酰胺基吡啶）配体SC4H2-2,5-{C(=O)N(Me)-4-C5H4N}2与银（I）盐AgX反应生成1:1配合物，当X = CF3CO2、NO3或CF3SO3时，这些配合物在固态下被表征为大环配合物[Ag(2){SC4H2-2,5-(CONMe-4-C5H4N)2}2][X]2，其C(=O)N(Me)基团具有顺式构象；而当X = PF6时，则为聚合物配合物[Ag(n){SC4H2-2,5-(CONMe-4-C5H4N)2}n][X]n，其C(=O)N(Me)基团具有不寻常的反式构象。双（酰胺基吡啶）配体SC4H2-2,5-{C(=O)NHCH2-3-C5H4N}2与三氟乙酸银反应生成聚合物配合物[Ag(n){SC4H2-2,5-(CONHCH2-3-C5H4N)2}n][X]n，X = CF3CO2。大环配合物含有跨环亲银二级键。聚合物通过[Ag(n){SC4H2-2,5-(CONMe-4-C5H4N)2}n][PF6]n中的链间C=O...Ag和S...Ag键以及[Ag(n){SC4H2-2,5-(CONHCH2-3-C5H4N)2}n][CF3CO2]n中的Ag...Ag、C=O...Ag和Ag...O（三氟乙酸根）...HN二级键自组装成片状结构。
