Synthesis and NMR studies of silver complexes with octaaza Schiff-base cryptands and the structure of a polymeric silver cryptate
作者:Shu-Yan Yu、Qin-Hui Luo、Biao Wu、Xiao-Ying Huang、Tian-Lu Sheng、Xin-Tao Wu、Da-Xu Wu
DOI:10.1016/0277-5387(96)00291-4
日期:1997.1
Abstract Four binuclear and one polymeric silver of octaaza Schiff-base cryptands were synthesized by [2+3] condensation of tris(3-aminopropyl)amine (trpn) or tris(2-aminoethyl)amine (tren) with 5-R-2-methoxyl-1,3-benzenedicarboxaldehyde (R = OCH3, CH3, Br or Ph) in the presence of excess of AgI ion. The polynucleating and extended coordination nature of the trpn-derived cryptand L1 (R = OCH3) was established
摘要通过三(3-氨基丙基)胺(trpn)或三(2-氨基乙基)胺(tren)与5-R-2的[2 + 3]缩合反应合成了四分子双辛基和一个聚合物基八氮杂席夫碱。 -在过量AgI离子存在下的-甲氧基-1,3-苯二甲醛(R = OCH3,CH3,Br或Ph)。通过[Ag(Ag2L1)} n] [(ClO4)3·2CH3CN·CH3OH·2 H2On的X射线结构建立了trpn衍生的隐窝L1(R = OCH3)的多核和扩展配位性质。聚合阳离子[Ag(Ag2L1)} n]可以描述为通过银原子通过线性NAgN桥键结合模式以交替(向内,向外)构象连接在一起的桥扭双核(Ag2L1)单元与苯环相连,形成无限个单螺旋链。螺旋链中的苯环几乎彼此平行,