2022-06-222022-06-22195813724414https://hdl.handle.net/10657/9871The low temperature emission spectra of the dimethyl ester.of mesoporphyrin IX and its Co(II)t Ni(II), Cu(II), Zn(II), Pd(II), and Cd(II)-derivatives have been obtained. The emission characteristics of Ag(II) derivative were investigated; however, no emission bands could be detected. The spectral properties of these compounds are discussed in terms of the degree of spin-orbital coupling present in such molecules. Several predictions are made regarding the magnetic character of the central metal ion and the metal-porphyrin geometry present in these porphyrin molecules. In addition, a comparison is made of the intensities of the fluorescent spectra of Zn-mesoporphyrin with Zn-phthalocyanine. This indicates that there is a decrease in the sire of the area between the pyrrole rings of the former molecule compared to the latter.application/pdfenThis item is protected by copyright but is made available here under a claim of fair use (17 U.S.C. Section 107) for non-profit research and educational purposes. Users of this work assume the responsibility for determining copyright status prior to reusing, publishing, or reproducing this item for purposes other than what is allowed by fair use or other copyright exemptions. Any reuse of this item in excess of fair use or other copyright exemptions requires express permission of the copyright holder.Thesisreformatted digital