Electronic Quenching Of The A(1)Sigma(+) State Of Nah

    Authors

    S. L. Savrda;I. M. Littlewood

    Comments

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    Abbreviated Journal Title

    Chem. Phys. Lett.

    Keywords

    SPECTROSCOPY; A1-SIGMA+; KH; Chemistry, Physical; Physics, Atomic, Molecular & Chemical

    Abstract

    We have measured the rates for quenching of the upsilon=4 and upsilon=5 vibrational levels of the A(1) Sigma(+) state of sodium hydride using helium, argon, and nitrogen as the quenching gas. The measured rates are compared with earlier results for state-to;state quenching rates. The measured rates for quenching by helium and argon are similar, whereas that for quenching by nitrogen is an order of magnitude higher. In addition, at high nitrogen gas pressures the fluorescence was observed to undergo large scale intensity fluctuations. It is suggested that this may be due to a chemical rather than a physical mechanism.

    Journal Title

    Chemical Physics Letters

    Volume

    245

    Issue/Number

    4-5

    Publication Date

    1-1-1995

    Document Type

    Article

    Language

    English

    First Page

    427

    Last Page

    431

    WOS Identifier

    WOS:A1995TE05600016

    ISSN

    0009-2614

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