Synthesis of asymmetric tetraarylporphyrins and their ytterbium complexes

摘要

The synthesis of asymmetric meso-aryl-substituted porphyrins containing three 4-methoxycarbonylphenyl groups, and 4-hydroxyphenyl or 4-hydroxy-3-methoxyphenyl radicals or isomeric 3-and 4-pyridyl radicals as a forth substitute, is described. 4-Oxyalkyl derivatives are obtained. The ytterbium complexes of these porphyrins have been synthesized, and their spectral luminescence properties have been studied. A significant difference in the lifetimes of the excited state of ytterbium complexes of the esters and acids of asymmetric porphyrins has been shown.