Abstract
Two new hybrids, namely [C 4-ZnTPP-(ip)Ru(phen) 2](ClO 4) 2 and [C 4-ZnTPP-(ip)Ru(pip) 2](ClO 4) 2, containing a zinc(II) porphyrin unit and a polypyridyl ruthenium(II) complex unit were synthesized and characterized. Their photoinduced intramolecular electron and energy transfer properties were investigated using electronic absorption spectra, fluorescence spectra and decayed luminescence spectra. In both hybrid compounds, an electronic interaction and energy transfer between the zinc(II) porphyrin moiety and the polypyridyl ruthenium(II) moiety were observed. The efficiency of the energy transfer from 3MLCT of the polypyridyl ruthenium(II) moiety to the zinc(II) porphyrin moiety and the rate of electron transfer from the singlet excited state of the porphyrin moiety to the polypyridyl ruthenium(II) may be related to the axial coordination of the N atom from pip in polypyridyl ruthenium(II) moiety to the zinc(II) ion.
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