Synthesis of new axially-disubstituted silicon-phthalocyanine derivatives: optical and structural characterisation

Abstract

This paper describes the synthesis of a range of new axially-disubstituted silicon-phthalocyanines with several ester and ether derivatives as axial ligands, including phenyl, terphenyl, thienyl and pyrenyl systems. Their absorption and emission spectra are reported and fluorescence lifetimes and quantum yields are correlated with the ligand structures. The X-ray crystal structure of a new polymorph of silicon-phthalocyanine bis(3-thienyl)acetate 7 is described.