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RESEARCH PRODUCT

Dipole moments of aminophthalimides determined by modified electro-optical absorption and emission measurements

Norbert DetzerWolfram BaumannNicolai A. NemkovichH. Reis

subject

Bond dipole momentDipoleAbsorption spectroscopyChemistryGeneral Chemical EngineeringExcited stateTransition dipole momentMoment (physics)General Physics and AstronomyGeneral ChemistryEmission spectrumAtomic physicsAbsorption (electromagnetic radiation)

description

Modified electro-optical absorption and emission methods were used to measure the electric dipole moments of five aminophthalimides in their ground and excited states. The equilibrated ground and excited state dipole moments measured by these methods are in reasonable agreement with those derived from other measurement techniques, confirming the general validity of these methods. A difference is observed between the properties of 3-aminophthalimide (3AP) and 4-amino-N-methylphthalimide (4ANMP) in different solvents. The equilibrated dipole moment of 3AP in its excited state is practically independent of the solvent polarity in contrast with 4ANMP. The possible mechanism of this effect is discussed.

yearjournalcountryeditionlanguage
1995-07-01Journal of Photochemistry and Photobiology A: Chemistry
https://doi.org/10.1016/1010-6030(94)04015-t