A tetraguanidinium macrocycle for the recognition and cavity expansion of calix[4]arene tetraoxoanions
作者:Julián Valero、Javier de Mendoza
DOI:10.1080/10610278.2013.835814
日期:2013.9.18
tetraguanidinium macrocycle which forms robust complexes with diverse calix[4]arene tetraoxoanions through hydrogen bonding and electrostatic interactions. The binding behaviour and affinity strength of these constructs have been measured by NMR and isothermal titration calorimetry. Besides, VT NMR experiments show that this novel cyclic tetracation is able to stabilise the cone conformation of these calix[4]arenes