Intramolecular photoinduced electron transfer reactions of zinc(II) porphyrin dyads studied with a sub-ns time resolution

Abstract

We report the dynamics of a intramolecular photoinduced electron transfer reaction of Zn(II)-porphyrin dyads that have a 2,2[Formula: see text]-bipyridine moiety at the periphery in the presence of Cu[Formula: see text] in methanol studied using laser flash photolysis with a sub-nanosecond time resolution. The photoinduced electron transfer reactions were observed from the excited [Formula: see text] and [Formula: see text] states of the Zn(II)-porphyrin to the Cu(II)-2,2[Formula: see text]-bipyridine moiety, and the structural dependence of the reactivity were discussed in terms of the distance between the electron donating and accepting centers.

Evaluation of the Correlation between Porphyrin Accumulation in Cancer Cells and Functional Porphyrin Positions of the Phenyl Group

“…The phenyl group is commonly used for the molecular design of drugs due to the easiness of adding some substituents. [23][24][25][26][27] Here, the effect of the functional position of the phenyl group on porphyrin accumulation in cancer cells was described by evaluating the accumulation level of porphyrin derivatives with the phenyl group (meso-Ph1 and β-Ph1) and comparative compounds (meso-P1 and β-P1) (Figure 1).…”