The new threading system 2-benzyl-5,6-dimethyl-1H-benzo[d]imidazolium – dibenzo-24-crown-8: a model for Monte Carlo calculations incorporating an anion for the first time in threaded structures†
Abstract
A new [2]pseudorotaxane containing a benzimidazolium hydrogen-bonding station for a dibenzo-24-crown-8 (DB24C8) macrocycle is described. The structure of the [2]pseudorotaxane formed is established by 1H NMR spectroscopy, 2D NOESY and a Monte Carlo protocol (including an anion for the first time).