The synthesis, spectroscopic and thermal properties of phenoxycyclotriphosphazenyl-substituted phthalocyanines

Novel phthalocyanines with four hexa(phenoxy)cyclotriphosphazene groups, appended through ether linkages were synthesized. Two hexa(phenoxy)cyclotriphosphazene derivatives, a substituted phthalonitrile derivative and metal-free, Ni and Zn phthalocyanines were characterized by elemental analysis , mass spectrometry , IR, 1 H, 13 C and 31 P NMR spectroscopies. The synthesis and spectroscopic properties of hexa(phenoxy)cyclotriphosphazenyl-substituted metal-free, Ni and Zn phthalocyanines are reported for the first time; their thermal stability, electronic absorption and fluorescence spectral properties are reported. The phthalocyanines displayed monomeric behaviour in CHCl 3 ; fluorescence quantum yields and lifetimes were determined using DMSO solutions of the compounds.