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- W2005180867 abstract "Abstract The photoinduced electron transfer (PET) between 8-(4-methoxyphenyl)-3,5-di[(E)-1-(4-methoxyphenyl)methylidene]-1,2,3,5,6,7-hexahydrodicyclopenta[b,e]pyridine (DMP) and aniline is studied in acetonitrile medium by using steady state and time resolved absorption and fluorescence spectroscopic methods. Bimolecular quenching rate constants ( k q ) were calculated from the obtained linear Stern–Volmer plots from both steady state and time resolved measurements. The rate constant ( k q ) for PET between DMP and aniline is 1.4×10 10 M −1 s −1 , which is in diffusion control limit. The free energy change (Δ G 0 ) has been evaluated by using Rehm–Weller equation for the evidence of electron transfer from aniline to DMP. Direct evidence for the electron transfer reaction in the present system has been obtained by characterizing the aniline cation radical using nanosecond time resolved absorption measurements in the visible region. Further, this quenching mechanism is attributed to be reductive in nature i.e. electron transfer occurs from ground state aniline to excited DMP. This is the first example of reductive fluorescence quenching of DMP with aniline in acetonitrile ever known." @default.
- W2005180867 created "2016-06-24" @default.
- W2005180867 creator A5045080569 @default.
- W2005180867 creator A5068945736 @default.
- W2005180867 date "2014-01-01" @default.
- W2005180867 modified "2023-09-27" @default.
- W2005180867 title "Reductive fluorescence quenching of DMP with aniline" @default.
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- W2005180867 doi "https://doi.org/10.1016/j.jlumin.2013.07.017" @default.
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