1620001-71-9Relevant articles and documents
Two-dimensional supramolecular spring: Coordination driven reversible extension and contraction of bridged half rings
Luo, Dapeng,Zhang, Xuemei,Shen, Yongtao,Xu, Jing,Shu, Lijin,Zeng, Qingdao,Wang, Chen
supporting information, p. 9369 - 9371 (2014/08/05)
A tetraethylene glycol ether bridged derivative 9 has been designed and synthesized, and its two-dimensional (2D) self-assembled behavior has been investigated at the single-molecule level. Our results revealed that 9 generally adopted the fully extended state but changed to the contracted state when triggered by K2CO3, and recovered the original fully extended conformation after subsequent addition of 18-crown-6. Such a coordination-controlled reversible assembly reveals supramolecular springs in response to chemical stimuli, which is of great interest in bionics and materials science.