Zsolt Valicsek(1*), Melitta P. Kiss(2), Melinda A. Fodor(3), Muhammad Imran(4), Ottó Horváth(5)

(1)  Department of General and Inorganic Chemistry, Institute of Chemistry, Faculty of Engineering, University of Pannonia, Egyetem u. 10., H-8200 Veszprém, HUNGARY
(2)  Department of General and Inorganic Chemistry, Institute of Chemistry, Faculty of Engineering, University of Pannonia, Egyetem u. 10., H-8200 Veszprém, HUNGARY
(3)  Department of General and Inorganic Chemistry, Institute of Chemistry, Faculty of Engineering, University of Pannonia, Egyetem u. 10., H-8200 Veszprém, HUNGARY
(4)  Department of Chemistry, Baghdad-ul-Jadeed Campus, The Islamia University of Bahawalpur, 63100 Bahawalpur, PAKISTAN
(5)  Department of General and Inorganic Chemistry, Institute of Chemistry, Faculty of Engineering, University of Pannonia, Egyetem u. 10., H-8200 Veszprém, HUNGARY
(*) Corresponding Author

Formation, Photophysics, Photochemistry and Quantum Chemistry of the Out-of-Plane Metalloporphyrins


Abstract



Among the complexes of porphyrins, special attention has been paid to those possessing out-of-plane (OOP) structures, for the formation of which the size, as well as the coordinative character of the metal center are responsible. In these coordination compounds, the central atom cannot fit coplanarly into the cavity of the ligand, hence, it is located above the porphyrin plane, distorting it. Equilibria and kinetics of the complex formation, spectrophotometric, photophysical and primary photochemical properties of post-transition and lanthanide OOP metalloporphyrins were investigated, in addition electronic structural calculations were performed; hence, the general OOP characteristics were determined.Meanwhile, few doubtful questions have attempted to be answered concerning the categorization of metalloporphyrins, the borderline case complexes and hyperporphyrins.

Keywords


out-of-plane metalloporphyrins; formation kinetics; UV-Vis spectrophotometry; photo-chemistry; borderline case complexes

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