Preparation, Infra-red and solvent effects On the Electronic absorption spectra of Magnesium Phthalocyanine

Abstract

Abstract:Magnesium Phthalocyanine (abbreviated MgPc) like othermethallophthalocyanines have limited solubility in most solvents this behaviourprevented complete spectroscopic studies. In this paper MgPc was prepared andInfra-red peaks were characterized, and MgPc has been found to be soluble inseveral solvent (DMF, DMSO, THE, Pyridine and Chlorobenzene). The studyshow that tlie position of Q-band show very small change in non aromatic solventDMF, DMSO and THF. The blue shift was observed in aromatic solvent(chlorobenzene, this is because of the aggregation of MgPc molecules and theaggregation increase as the concentration increase. In pyridine a red shift of Qbandwas observed.