Absorption and emission of 2,12‐dimethyltridecahexaene

Autor:	M. F. Granville, Ronald L. Christensen, R. A. Auerbach, Bryan E. Kohler
Rok vydání:	1981
Předmět:	Absorption spectroscopy Chemistry General Physics and Astronomy Electronic structure Polyene Spectral line Vibronic coupling chemistry.chemical_compound Excited state Vibronic spectroscopy Singlet state Physics::Chemical Physics Physical and Theoretical Chemistry Atomic physics
Zdroj:	The Journal of Chemical Physics. 74:4-9
ISSN:	1089-7690 0021-9606
DOI:	10.1063/1.440857
Popis:	We have obtained well resolved optical spectra of a simple, methyl substituted hexaene at 4.2 K. These spectra provide detailed information on the vibronic levels associated with the ground (1 1Ag) and first excited (2 1Ag) singlet electronic states. The strongest vibronic feature, due to a totally symmetric CC double bond stretch, shifts from 1576 cm−1 in the 1 1Ag state to 1779 cm−1 in the 2 1Ag state. This shift, not accounted for by current theoretical descriptions of polyene electronic states at the crude adiabatic level, may be rationalized as a manifestation of vibronic coupling between the ground and first excited singlet states.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e1a43c71a502df5516d717cb6e242838 https://doi.org/10.1063/1.440857 Zobrazit plný text záznamu