Controlling the molecular aggregation. An amphiphilic Schiff-base zinc(II) complex as supramolecular fluorescent probe
作者:Giuseppe Consiglio、Salvatore Failla、Ivan Pietro Oliveri、Roberto Purrello、Santo Di Bella
DOI:10.1039/b914930a
日期:——
A designed amphiphilic Schiff-base bis(salicylaldiminato)zinc(II) complex, 1, forms defined aggregates in dilute solutions of non-coordinating solvents. The switching to the monomer can be driven by addition of a coordinating species and involves a dramatic enhancement of the fluorescence emission.
Characterization and investigation of the physical properties of two new analogs of salicylaldimine compounds, which were synthesised for the first time by our group, are reported in this work. 5-(10-undecenyloxy)-2-[[[4-hexylphenyl]imino]methyl]phenol and 5-(10-undecenyloxy)-2-II[4-hexyloxyphenyl]imino]methyl]phenol have been studied. Different degree of mesomorphism has been found in these analogs. Typical textures and temperatures of the direct and reverse phase transitions, taking place in these analogs, are presented. Temperature dependences of the optical transmission for both heating and cooling are given. (C) 2011 Elsevier B.V. All rights reserved.