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RESEARCH PRODUCT

Molecular Stark-effect spectroscopy of Prodan and Laurdan in different solvents and electric dipole moments in their equilibrated ground and Franck–Condon excited state

Nicolai A. NemkovichW. Baumann

subject

ChemistryGeneral Chemical EngineeringTransition dipole momentGeneral Physics and AstronomyGeneral ChemistryPhotochemistrysymbols.namesakeDipolechemistry.chemical_compoundStark effectExcited statesymbolsAtomic physicsSpectroscopyGround stateLaurdanExcitation

description

Abstract The results from electrooptical absorption measurements (EOAM) on the ground and excited Franck–Condon state dipole moments of Prodan and Laurdan in 1,4-dioxane and cyclohexane are presented. The ground and excited Franck–Condon state electric dipole moments as well as the respective transition moment of both probes are parallel. The electric dipole moments of Prodan and Laurdan in the ground state in cyclohexane and 1,4-dioxane have values within the range (15.7–16.5) × 10 −30  C m. On optical excitation the dipole moments increase by (42.1–49.5) × 10 −30  C m. The obtained results are compared with the values of the dipole moments of Prodan and Laurdan determined by other methods.

yearjournalcountryeditionlanguage
2007-01-01Journal of Photochemistry and Photobiology A: Chemistry
https://doi.org/10.1016/j.jphotochem.2006.05.002