Preparation, infra-red and solvent effects on the electronic absorption spectra of magnesium phthalocyanine

Abstract EN

Magnesium Phthalocyanine (abbreviated MgPc) like other methallophthalocyanines have limited solubility in most solvents this behavior prevented complete spectroscopic studies.

In this paper MgPc was prepared and Infra-red peaks were characterized, and MgPc has been found to be soluble in several solvent (DMF, DMSO, THE, Pyridine and Chlorobenzene).

The study show that the position of Q-band show very small change in non aromatic solvent DMF, DMSO and THF.

The blue shift was observed in aromatic solvent (chlorobenzene) this is because of the aggregation of MgPc molecules and the aggregation increase as the concentration increase.

In pyridine a red shift of Q-band was observed.