Protonation of 25,27-bis(1-octyloxy)calix[4]arene-crown-6 in the 1,3-alternate conformation

摘要

From extraction experiments in the two-phase water-nitrobenzene system and 7-activity measurements,the stability constant of protonated 1,3-alternate-25,27-bis(1-octyloxy)calix[4]arene-crown-6 in nitrobenzene saturated with water was determined.By using DFT calculations,the most probable structure of the 1,3-alternate-25,27-bis(1-octyloxy)calix[4]arene-crown-6·H3O~+complex species was derived.