6533b859fe1ef96bd12b8073

RESEARCH PRODUCT

Dipole Moments and the Direction of the Transition Dipole Moment of Some Intramolecular Exciplexes

C. BrittingerNoboru MatagaJ.-c. FrühlingWolfram BaumannTadashi Okada

subject

Bond dipole momentDipoleElectric dipole momentChemistryGeneral Chemical EngineeringChemical polarityMoment (physics)Transition dipole momentPhysics::Atomic and Molecular ClustersElectric dipole transitionAtomic physicsPhotochemistryMagnetic dipole

description

The dipole moments of some intramolecular exciplex systems have been determined from the effect of an electric field on their fluorescence and are compared to those estimated from solvent shift measurements. The charge transfer between the donor and acceptor subunits is between 0.6 and 0.9 of a full charge transfer. The face-to-face type exciplexes show considerable deviations from the general behaviour what might be due to some admixture of locally excited configurations to the exciplex wave function, in this way reducing the dipole moment values and changing the direction of the transition dipole moment.

https://doi.org/10.1002/bbpc.198800175