Two-photon photochromism of a diarylethene enhanced by Forster resonance energy transfer from two-photon absorbing fluorenes

    Authors

    K. D. Belfield; M. V. Bondar; C. C. Corredor; F. E. Hernandez; O. V. Przhonska;S. Yao

    Comments

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    Abbreviated Journal Title

    ChemPhysChem

    Keywords

    diarylethenes; fluorescence; FRET (fluorescence resonance energy; transfer); photochromism; two-photon excitation; OPTICAL-DATA STORAGE; MOLECULAR DEVICES; DERIVATIVES; SYSTEM; SWITCHES; ABSORPTION; ANHYDRIDE; MEMORIES; READOUT; Chemistry, Physical; Physics, Atomic, Molecular & Chemical

    Abstract

    Resonance energy transfer from two-photon absorbing fluorene derivatives to the photochromic compound 3,4-bis-(2,4,5-trimethyl-thiophen-3-yl)furan-2,5-dione (PC 1) is investigated in hexane under one- and two-photon excitation. The quenching of the steady-state fluorescence of donor molecules in the presence of the diarylethene acceptor is used to study the nature of resonance energy transfer. The Forster distances and critical acceptor concentrations are determined for non-bound donar-acceptor pairs in homogeneous molecular ensembles. Quite significantly, up to a two-fold enhancement in the velocity of a photochromic transformation of 1, in the presence of two-photon absorbing fluorene derivatives, is demonstrated.

    Journal Title

    Chemphyschem

    Volume

    7

    Issue/Number

    12

    Publication Date

    1-1-2006

    Document Type

    Article

    Language

    English

    First Page

    2514

    Last Page

    2519

    WOS Identifier

    WOS:000244334000015

    ISSN

    1439-4235

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