✦ LIBER ✦

Laser-free absorption and fluorescence spectroscopy of large molecules in planar supersonic expansions

✍ Scribed by Aviv Amirav; Joshua Jortner

Publisher: Elsevier Science
Year: 1983
Tongue: English
Weight: 383 KB
Volume: 94
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(83)85052-0

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✦ Synopsis

Absorption spectra. fluorescence excitation spectra and fluorescence quantum yields, Y. from the !& manifold of 9.10dichloroanttuacene and anthracene cooled in planar supersonic expansions were simultaneously determined using a pulsed xenon lamp and a monochromator. The dependence of Y from photoselected viirationai states in the S1 manifold of 9.1 O-Jichloroamhracene on the excess vibrational energy eshibitsa "step-function-type" behabiour, which is attributed to intersystem crossing intermediated by a higher triplet state.

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