Synthesis and fluorescence properties of hexameric and octameric subphthalocyanines based cyclic phosphazenes

Abstract

Hexameric and octameric subphthalocyanines bearing cyclophosphazene derivatives were synthesized by threating hexa(p-hydroxyphenoxy)cyclotriphosphazene and octa(p-hydroxyphenoxy)cyclotetraphosphazene with excess of boron subphthalocyanine chloride in toluene. The hexameric and octameric subphthalocyanines bearing cyclophosphazene derivatives were fully characterized by elemental analysis, ESI and MALDI mass spectrometry, FT-IR, H-1, C-13 and P-31 NMR spectroscopy. The photophysical properties of title compounds were investigated by means of UV/Vis absorption and fluorescence spectroscopies in dilute 1,4-dioxane solutions. The fluorescence quenching behavior of these complexes by 1,4-benzoquinone were also reported. (C) 2013 Elsevier Ltd. All rights reserved.