Triggering a [2]rotaxane molecular shuttle through hydrogen sulfide

• 来源期刊: 中国科学:化学（英文版）
• 年，卷（期）: 2018,（3）
• 页码范围: 306-310
• 页数: 5页
• 语种: 英文

摘要

A novel chemically-controlled [2]rotaxane molecular shuttle was successfully designed and synthesized.A H2S-responsive bulk barrier was introduced between the two identical recognition stations of the [2]rotaxane to prevent dynamic shuttling of the macrocycle.Upon addition of H2S,the complete intramolecular cascade reaction occurs in a controllable manner,resulting in removal of the bulk barrier and the shuttling motion of the macrocycle between the two stations recovers.