Aryleneethynylene Trimers Bearing Calix4arenes: Synthesis, Optical Properties and Self-Assembling Studies

摘要

New homoditopic bis-calix[4]arene-carbazole conjugates, armed with hydrophilic carboxylic acid functions at their lower rims, are disclosed. Evidence for their self-association in solution was gathered from solvatochromic and thermochromic studies, as well as from gel-permeation chromatography analysis. Their ability to function as highly sensitive sensors toward polar electron-deflcient aromatic compounds is demonstrated.