Avram Liat, Cohen Yoram
School of Chemistry, The Sackler Faculty of Exact Sciences, Tel Aviv University, Ramat Aviv, Tel Aviv 69978, Israel.
Org Lett. 2003 Apr 3;5(7):1099-102. doi: 10.1021/ol034156q.
[reaction: see text] NMR diffusion measurements were used to probe the differences in the characteristics of the hexameric capsule of [c]-undecane resorcin[4]arene (1b) in a CDCl(3) solution in the absence and presence of tetrahexylammonium bromide (THABr). It was found that the nonencapsulated THABr forms a 1:1 complex with 1b, which is in fast exchange with its constituents. We found that water molecules seem not to participate in the construction of the THABr hexameric capsule of 1b in a CDCl(3) solution, in contrast to the finding in the absence of THABr, where the major species in CDCl(3) seems to be [(1b)(6)(H(2)O)(8)].
[反应：见正文] 采用核磁共振扩散测量法，探究了在不存在和存在四己基溴化铵（THABr）的情况下，[c]-十一烷间苯二酚[4]芳烃（1b）的六聚体胶囊在CDCl₃溶液中的特性差异。结果发现，未被包封的THABr与1b形成1:1络合物，该络合物与其组分处于快速交换状态。我们发现，与不存在THABr时的情况相反，在CDCl₃溶液中，水分子似乎不参与1b的THABr六聚体胶囊的构建，在不存在THABr时，CDCl₃中的主要物种似乎是[(1b)₆(H₂O)₈] 。
