TY - JOUR
T1 - Direct absorption spectroscopy of jet-cooled polyenes. I. The 1 1Bu+←1 1Ag - transition of trans, trans-1,3,5,7-octatetraene
AU - Leopold, Doreen G.
AU - Vaida, Veronica
AU - Granville, Mark F.
PY - 1984
Y1 - 1984
N2 - The direct absorption spectrum of the 1 1Bu +←1 1Ag- transition of jet-cooled trans,trans-1,3,5,7-octatetraene is reported here for the 35, 120-42, 600 cm-1 region. The alleviation of vibrational sequence band congestion in the jet spectrum results in an order-of-magnitude decrease in the observed breadth of the origin band and a comparable sharpening throughout the spectrum, enabling the redetermination of vibronic band positions, relative intensities, and widths. Vibrational assignments for the seven observed active modes are discussed, and results are compared to the predictions of previously reported vibronic structure calculations.
AB - The direct absorption spectrum of the 1 1Bu +←1 1Ag- transition of jet-cooled trans,trans-1,3,5,7-octatetraene is reported here for the 35, 120-42, 600 cm-1 region. The alleviation of vibrational sequence band congestion in the jet spectrum results in an order-of-magnitude decrease in the observed breadth of the origin band and a comparable sharpening throughout the spectrum, enabling the redetermination of vibronic band positions, relative intensities, and widths. Vibrational assignments for the seven observed active modes are discussed, and results are compared to the predictions of previously reported vibronic structure calculations.
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U2 - 10.1063/1.447452
DO - 10.1063/1.447452
M3 - Article
AN - SCOPUS:0001187868
SN - 0021-9606
VL - 81
SP - 4210
EP - 4217
JO - The Journal of chemical physics
JF - The Journal of chemical physics
IS - 10
ER -