Crystal and Molecular Structures of Ionophore−Siderophore Host−Guest Supramolecular Assemblies Relevant to Molecular Recognition
作者:Suraj Dhungana、Peter S. White、Alvin L. Crumbliss
DOI:10.1021/ja035778+
日期:2003.12.1
alpha = 80.469(3) degrees, beta = 81.481(3) degrees and gamma = 70.212(2) degrees. The crystals of cis-syn-cis-dicyclohexano-18-crown-6:ferrioxamine B host-guest assembly are monoclinic, with space group P2(1)/c, and four molecules per unit cell with dimensions a = 20.1473(13) A, b = 21.5778(15) A, c = 14.8013(10) A, and beta = 94.586(2) degrees. The crystal structures of all three host-guest assemblies
由18-crown-6和ferrioxamine B、benzo-18-crown-6和ferrioxamine B、cis-syn-cis-dicyclohexano-18-crown-6和ferrioxamine B组成的离子载体-铁载体主客体组装体成功结晶,并通过单晶X射线衍射确定了它们的结构。所有三种晶格还包括溶剂化的 Mg(II) 和高氯酸根离子。离子载体-铁载体主客体组件通过亚铁胺 B 的第二配位球中的侧质子化胺与冠醚中的氢键受体氧原子之间的氢键相互作用非共价结合在一起。18-crown-6:ferrioxamine B主客体组装晶体为单斜晶系,空间群为P2(1)/c,每个晶胞有4个分子,尺寸a = 19.8327(11) A, b = 20.4111(11) A,c = 15.1698(8) A,β = 96。435(1) 度。benzo-18-crown-6:ferrioxamine