Rotationally resolved electronic S1 spectra of tryptoline and oxindole: Reversal of the 1L and 1L state character

Autor: David F. Plusquellic, Josué A. Minguela-Gallardo, John T. Yi, Leonardo Alvarez-Valtierra
Rok vydání: 2022
Předmět:
Zdroj: Journal of Molecular Structure. 1247:131386
ISSN: 0022-2860
DOI: 10.1016/j.molstruc.2021.131386
Popis: Rotationally resolved S1←S0 fluorescence excitation spectra of the lowest electronic transitions (origin bands) of tryptoline (TRY) and oxindole (OXI) have been recorded and analyzed. A higher vibronic band of OXI has also been observed and assigned. The derived inertial parameters from the fits provide detailed information about their conformational or tautomeric structures in both the ground and excited electronic states. These molecules exhibit significantly different transition dipole moment orientations relative to the parent reference frame of indole that signify S1 state characters having principal parentage in a 1La state for OXI and a 1Lb state for TRY.
Databáze: OpenAIRE