Synthesis and spectral properties of axially substituted zirconium(IV) and hafnium(IV) water soluble phthalocyanines in solutions

Abstract

Methods of synthesis of novel water soluble axially substituted Zr(IV) and Hf(IV) phthalocyanines with gallic, 5-sulfosalicyllic, oxalic acids, and methyl ester of gallic acid as axial ligands coordinated to the central atom metal of phthalocyanine are presented. The absorption spectra of complex solutions in various solvents were characterized. The dependence of the spectral red shift from Reichardt’s empirical polarity parameter is described. The deviation from the linearity of Beer–Bouguer–Lambert law was investigated for the range of concentration 5×10−6 to 10×10−5M. Fluorescent properties of axially substituted phthalocyaninato metal complexes in DMSO solutions were investigated.