Abstract
New complexes of [5,10,15,20-tetra-(4-methoxyphenyl)porphinato](chloro)indium(III) ((Cl)InTPP(p-OCH3)4) with unsubstituted C60 and 1-methyl-2-(pyridin-4'-yl)-3,4- fullero[60]pyrrolidine (PyC60) were synthesized in toluene. The stability constants of 1 : 1 complexes (dyads) were determined using UV-vis and fluorescence spectroscopy. The dyads were characterized by IR and 1H NMR spectroscopy data. It was established that fluorescence of (Cl)InTPP(p-OCH3)4 is quenched upon gradual addition of fullerenes. The numerical values of the Stern–Volmer quenching constants (KSV) were determined. The most important charge transfer characteristics of dyads (the lifetime of charge-separated states and charge separation and recombination constants), needed for further consideration of dyads based on indium(III) porphyrins as photoinduced electron transfer systems, were determined using femtosecond laser spectroscopy.
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