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Direct Femtosecond Observation of Tight and Loose Ion Pairs upon Photoinduced Bimolecular Electron Transfer
Author(s) -
Mohammed Omar F.,
Adamczyk Katrin,
Banerji Natalie,
Dreyer Jens,
Lang Bernhard,
Nibbering Erik T. J.,
Vauthey Eric
Publication year - 2008
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200803164
Subject(s) - femtosecond , photoinduced electron transfer , electron transfer , ion , electron , polar , anisotropy , femtochemistry , acetonitrile , chemical physics , orientation (vector space) , polarization (electrochemistry) , chemistry , acceptor , physics , photochemistry , optics , condensed matter physics , organic chemistry , mathematics , quantum mechanics , laser , geometry
Polarization‐sensitive ultrafast infrared measurements on photoinduced electron transfer in donor–acceptor pairs in polar acetonitrile show distinct contributions from loose and tight ion pairs. Highly anisotropic signals from tight ion pairs reveal the importance of mutual orientation of the reactants (see picture) and thus the need to refine theoretical models based on spherical species that solely involve reaction distances.