芳烯
单体
吡啶
化学
分子
滴定法
卤键
卤素
高分子化学
结晶学
聚合物
有机化学
氢键
烷基
芳基
作者
Bin Sun,Daniel M. Lux,Eric V. Patterson,Nancy S. Goroff
标识
DOI:10.1021/acs.joc.9b02859
摘要
Two shape-persistent arylene ethynylene macrocycles have been designed and synthesized as scaffolds to bind the nonpolar molecule 1,4-diiodobutadiyne. Binding via halogen bonding interactions between the pyridine moieties of the macrocycle and 1,4-diiodobutadiyne is predicted by density functional theory calculations and has been demonstrated in solution by 13C NMR titrations. The binding constant for the macrocycle-monomer complex (K = 10.5 L mol–1) is much larger than for other comparable halogen bonds, strongly supporting cooperative binding of both ends of the diyne. These results demonstrate a fully inserted geometry of 1,4-diiodobutadiyne in the complex.
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