Intra- and intermolecular interactions in substituted dithia[3.3]metacyclophanes
摘要:
通过 1H-NMR 和红外光谱以及 X 射线结构分析,研究了内部位置带有一个或两个氨基的二硫杂[3.3]偏环烷的构象特性和分子内氢键。研究表明,氨基质子和桥硫原子之间的分子内氢键网络与环烷的构象密切相关。此外,还对内部位置带有氨基和硝基的二硫杂[3.3]偏环烷进行了晶体结构分析。研究发现,由于分子间的π-π相互作用,分子在晶体中组合成一维阵列柱,这种柱状结构会因分子间氢键的发生而变形。
Conformational properties and intramolecularhydrogen-bondings of dithia[3.3]metacyclophanes carrying one or two amino group on their internal positions were studied by 1H-NMR, IR spectra and X-ray structural analyses. It was found out that intramolecularhydrogen-bonding network between amino protons and bridge sulfur atoms is formed and it is closely related to the conformations of cyclophanes.