2014
DOI: 10.1007/s10895-014-1491-z
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Photoinduced Electron Transfer Reactions of Ruthenium(II) Phenanthroline Complexes with Dimethylaniline in Aqueous and Micellar Media

Abstract: Four [Ru(NN)(3)](2+) complexes (NN = polypyridine) with ligands of varying hydrophobicity with different charges +2, 0 and -4 were synthesized. The photophysics and photoinduced electron transfer reactions of these Ru(II)-complexes with dimethylaniline (DMA) as the quencher have been studied in aqueous medium and ionic and non-ionic micellar medium. The extent of binding of the complexes with the surfactant interface is evident from the calculated binding constant values (K). Dimethylaniline (DMA) being a neut… Show more

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Cited by 7 publications
(1 citation statement)
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“…In the presence of amine, the transient absorption spectrum of C450 in SDS and TX-100 micelles shows a new transient peak at ~ 450 nm in addition to the hydrated electron peak at 710 nm and is assigned to the amine radical cation absorption. The absorption maximum of MAN +• and DMAN +• was observed at 450 and 470 nm, respectively, which is in good agreement with the literature [23,[48][49][50]. The observation of amine cation radical in the transient absorption spectrum of C450 with amine can be concluded that the PET from amine to the excited state of C450 is responsible for the fluorescence quenching.…”
Section: Time-resolved Nanosecond Transient Absorption Studies Of C450: Dynamics Of Et With Aminessupporting
confidence: 90%
“…In the presence of amine, the transient absorption spectrum of C450 in SDS and TX-100 micelles shows a new transient peak at ~ 450 nm in addition to the hydrated electron peak at 710 nm and is assigned to the amine radical cation absorption. The absorption maximum of MAN +• and DMAN +• was observed at 450 and 470 nm, respectively, which is in good agreement with the literature [23,[48][49][50]. The observation of amine cation radical in the transient absorption spectrum of C450 with amine can be concluded that the PET from amine to the excited state of C450 is responsible for the fluorescence quenching.…”
Section: Time-resolved Nanosecond Transient Absorption Studies Of C450: Dynamics Of Et With Aminessupporting
confidence: 90%