Macrocyclic Hamilton receptor-shuttling dynamics in [2]rotaxanes
Chemical Physics
2020-12-15 v1
Abstract
Inherent movement of a macrocycle comprising a multi-site hydrogen bonding Hamilton-type receptor in a series of [2]rotaxanes was investigated by dynamic and VT NMR. In these rotaxanes the varying nature and number of hydrogen-bond motifs and stations on the molecular axles influenced ring dynamics. Triazole stations interact selectively by hydrogen bonding with the isophthalamide amide bonds present in the Hamilton macrocycle and fast shuttling (72 kHz at 25 {\deg}C) was observed in a two station variant.
Cite
@article{arxiv.2012.07544,
title = {Macrocyclic Hamilton receptor-shuttling dynamics in [2]rotaxanes},
author = {Maxime Douarre and Vicente Martí-Centelles and Cybille Rossy and Arnaud Tron and Isabelle Pianet and Nathan D. McClenaghan},
journal= {arXiv preprint arXiv:2012.07544},
year = {2020}
}
Comments
5 figures; Supporting information appended