• Photoinduced electron transfer processes of (E)-9-(4-nitrostyryl)anthracene in non-polar solvent medium: generation of long-lived charge-separated states

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    • Keywords


      Photoinduced electron transfer; π-conjugated system; back electron transfer; long-lived chargeseparated states.

    • Abstract


      In the present study, photoinduced electron transfer (PET) dynamics between N,N-diethylaniline (DEA) and (E)-9-(4-nitrostyryl)anthracene (An-NO2) in a non-polar solvent medium {methylcyclohexane (MCH)}, has been investigated. The rate constant of back electron transfer (kKBT) for the An-NO2 – DEA pair was 3.8×105s -1 which is ca. 2 orders of magnitude less compared to the anthracene (An)-DEA (control) system. The results indicate that long-lived charge separated species can be generated using the design strategy used herein by achieving resonance stabilization of the excited state (acceptor) radical via conjugation.

    • Author Affiliations



      1. Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
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