TIME-RESOLVED DUAL FLUORESCENCE OF PUSH-PULL STILBENES AT HIGH SOLUTE CONCENTRATION AND EXCITATION INTENSITY - EVIDENCE FOR AN EMITTING BICIMER

no abstrac

DUAL FLUORESCENCE IN TRANS-4-DIMETHYLAMINO-4'-CYANOSTILBENE REVEALED BY PICOSECOND TIME-RESOLVED SPECTROSCOPY - A POSSIBLE NEW TICT COMPOUND

no abstrac

TIME-RESOLVED DUAL FLUORESCENCE OF PUSH-PULL STILBENES AT HIGH SOLUTE CONCENTRATION AND EXCITATION INTENSITY - EVIDENCE FOR AN EMITTING BICIMER

no abstrac

DUAL FLUORESCENCE IN TRANS-4-DIMETHYLAMINO-4'-CYANOSTILBENE REVEALED BY PICOSECOND TIME-RESOLVED SPECTROSCOPY - A POSSIBLE NEW TICT COMPOUND

no abstrac

DUAL FLUORESCENCE IN TRANS-4-DIMETHYLAMINO-4'-CYANOSTILBENE REVEALED BY PICOSECOND TIME-RESOLVED SPECTROSCOPY - A POSSIBLE NEW TICT COMPOUND

no abstrac

Non-radiative deactivation channels of molecular rotors

On the basis of the fluorescence properties of a series of intramolecular charge-transfer complexes of varied structure ( p-( N, N-dialkylamino) benzylidene malononitriles and coumarin laser dyes) in an inert solvent (ethyl acetate), a model of non-radiative decay is proposed. The model specifically describes the relative contributions of the possible internal relaxation channels to non-radiative energy dissipation of the S 1, ct states via the free rotor mechanism. The results are consistent with the theoretical predictions based on the calculated electron density distributions and the bond-order alternation in the S 1, ct state

Distribution of methylperylene isomers in selected sediments

Surface and deep sediment extracts, containing perylene compounds, have been examined by High Resolution Shpol'skii Spectroscopy. The first identification of the three methylperylene isomers is reported and indicates the predominance of 2-methylperylene among the methylperylene isomer distributions at any maturation stage. Perylene itself was nevertheless always found to be the most abundant perylene compound. \textcopyright 1988