期刊
JOURNAL OF PHYSICAL CHEMISTRY B
卷 116, 期 4, 页码 1335-1344出版社
AMER CHEMICAL SOC
DOI: 10.1021/jp2075995
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资金
- Council of Scientific and Industrial Research (CSIR)
- Board of Research in Nuclear Sciences (BRNS), Government of India
- BRNS
The photoinduced electron transfer (PET) reaction has been investigated in a room temperature imidazolium ionic liquid (RTIL), 1-ethyl-3-methylimidazolium ethyl sulfate ([Emim][EtSO4]) and also in [Emim][EtSO4]-co-solvents mixtures from N,N-dimethyl aniline (DMA) to different Coumarin dyes using steady state and time-resolved fluorescence quenching measurements. We have used water and methanol and 2-propanol as the co-solvents of RTILs for the PET study. On going from neat ionic liquid to the RTIL-co-solvents mixtures the electron transfer rate has been largely enhanced. In neat RTIL as well as in [Emim][EtSO4]-co-solvents mixtures, a Marcus type of inversion in the PET rate have been observed.
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