The π Complexation of Alkali and Alkaline Earth Ions by the Use ofmeso-Octaalkylporphyrinogen and Aromatic Hydrocarbons
作者:Lucia Bonomo、Euro Solari、Rosario Scopelliti、Carlo Floriani
DOI:10.1002/1521-3765(20010316)7:6<1322::aid-chem1322>3.0.co;2-h
日期:2001.3.16
The full metallation of meso-octaalkylporphyrinogens [R8N4H4] (R=Et, 1; nBu, 2; CH2Ph, 3; (CH2)4, 4) with heavy alkali metals (M = K, Rb, Cs) leads to the porphyrinogen-M4 compounds, in which the solvation of the alkali cations is largely assured by the intra- and intermolecular phi-interactions with the pyrrolyl anions. Such a mode of complexation results in a structural diversity as a function of
内八烷基卟啉原 [R8N4H4](R=Et, 1; nBu, 2; CH2Ph, 3; (CH2)4, 4)与重金属碱金属 (M = K, Rb, Cs) 的完全金属化导致卟啉原 - M4 化合物,其中碱金属阳离子的溶剂化在很大程度上是通过与吡咯阴离子的分子内和分子间 phi 相互作用来保证的。这种络合模式导致作为内消旋取代基、金属离子大小和溶剂的函数的结构多样性。未溶剂化聚合物的结构 [R8N4M4]n (R= Et, M=K, 5; M=Rb, 6; M=Cs, 7; R= (CH2)4, M = Rb, 8; M = Cs, 9) 已通过从二甘醇二甲醚重结晶的 7 的 X 射线分析得到澄清。结构显示四阴离子在腔内结合两个 Cs 离子,在一种情况下显示 eta1:eta1:eta1:eta1 和另一种 eta5:eta5:eta5:eta5 相互作用模式。二维聚合由四个 Cs 离子确保,每个离子都结合在每个吡咯的外表面的