Intramolecular charge transfer in jet-cooled aromatic amines

✍ Scribed by Julie August; T.Frank Palmer; John P. Simons; Christophe Jouvet; Wolfgang Rettig

• Publisher: Elsevier Science
• Year: 1988
• Tongue: English
• Weight: 592 KB
• Volume: 145
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(88)80006-x

✦ Synopsis

LIF excitation spectra have been recorded for a family of molecules whose dual fluorescence in solution has been ascribed to twisted intramolecular charge transfer (TICT) state formation, promoted through torsional motion in the initially photoexcited state. To eliminate the influence of solvation, the LIF spectra have been recorded under jet-cooled isolated-molecule conditions: the molecules include para-substituted nitrile or ester derivatives of dialkylamino benzene compounds. Evidence both for torsional motion and TICT state formation has been gained for the ester derivatives where access into the TICT state correlates with the onset of a quasi-continuous component in the LIF system and the appearance of a red-shifted fluorescence emission.