ISSN:
1089-7690
Source:
AIP Digital Archive
Topics:
Physics
,
Chemistry and Pharmacology
Notes:
A rotationally resolved fluorescence excitation spectrum of the 000 band in the A 1A'←X 1A' (S1←S0) transition of 1-fluoronaphthalene, at ∼3138 A(ring), has been observed using a newly constructed laser spectrometer operating in the ultraviolet. The band in question is a hybrid band exhibiting 75% a-type and 25% b-type character, and consists of ∼4000 lines at a rotational temperature of 9 K, each with a FWHM=3 MHz, all of which have been assigned. The band origin is at 31 866.508±0.002 cm−1 (vac), and the rotational constants are A‘=1920.6, B‘=1122.2, C‘=708.5, A'=1891.5, B'=1102.1, and C'=696.6±0.1 MHz. The S1←S0 optical transition moment is rotated away from the a inertial axis by an angle of ±30°, an effect that could have dynamic consequences. Some operating characteristics of the spectrometer are described.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.456078
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