Premium
Long‐Lived Short‐Distance Intramolecular Charge Separation via Intermolecular Triplet Sensitisation
Author(s) -
Hviid Lene,
Brouwer Albert M.,
PaddonRow Michael N.,
Verhoeven Jan W.
Publication year - 2001
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/1439-7641(20010417)2:4<232::aid-cphc232>3.0.co;2-3
Subject(s) - microsecond , intramolecular force , intermolecular force , singlet state , chemistry , excitation , acceptor , charge (physics) , photochemistry , triplet state , population , trapping , recombination , polar , chemical physics , molecular physics , atomic physics , excited state , molecule , physics , stereochemistry , condensed matter physics , optics , biochemistry , demography , organic chemistry , quantum mechanics , astronomy , sociology , gene , ecology , biology
Sensitised excitation of the DMN[3]DCME donor[bridge]acceptor system allows population of a triplet CT state with a microsecond lifetime in polar solvents. This is more than five orders of magnitude longer than the lifetime of the corresponding singlet CT state which is populated exclusively upon direct excitation. The picture indicates the spin‐forbidden nature of the charge recombination between the acceptor (red) to donor (green) moieties.