Melinda A. Fodor, O. Horváth, L. Fodor
Dec 1, 2014
Citations
0
Influential Citations
21
Citations
Journal
Inorganic Chemistry Communications
Abstract
Abstract Although kinetically inert cationic Co(III)TMPyP5 + (H2TMPyP4 + = 5,10,15,20-tetrakis(1-methylpyridinium-4-yl)porphyrin) was considered earlier to be very weakly emissive, both the spectrum and the lifetime of its fluorescence could be determined. Besides, this complex proved to be favorable for outer-sphere photoinduced reduction of the metal center in the presence of triethanolamine (TEOA) as electron donor quenching the triplet excited state of this metalloporphyrin. The corresponding cobalt(II) porphyrin formed in this way was also photoactive; it forwarded an electron to a suitable acceptor (e.g., methylviologen) upon irradiation, regenerating the starting complex. Hence, this system may be a candidate for hydrogen generation from water by the utilization of visible light.