Diagnostic Value of Photofragment Anisotropy Measurements: Predissociation Mechanisms of the {ital e} {sup 1}{Pi}{sub {ital u}} State of {ital N}{sub 2}

Journal Article · Mon Jul 01 04:00:00 EDT 1996 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.77.243· OSTI ID:286390

Buijsse, B; Wouters, E R; van der Zande, W J ^[1]

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1. FOM Institute for Atomic and Molecular Physics, Kruislaan 407, 1098 SJ Amsterdam (The Netherlands)

We report on a new method to identify the electronic symmetry of continuum states involved in the predissociation of long-lived rotational levels of diatomic molecules. The angular distribution of atomic fragments resulting from photodissociation is used to elucidate the dissociation mechanism. We applied this method to the {ital e}{sup 1}{Pi}{sub {ital u}} ({ital v}=0, {ital J}=1,...,9) levels of N{sub 2}. These levels predissociate by two different mechanisms to N({sup 2}{ital P}{sup {ital o}})+N({sup 4}{ital S}{sup {ital o}}) and N({sup 2}{ital D}{sup {ital o}})+N({sup 4}{ital S}{sup {ital o}}) and each dissociation mechanism yields a different angular distribution. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 286390
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 2 Vol. 77; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ANGULAR DISTRIBUTION
ANISOTROPY
NITROGEN
NUCLEAR FRAGMENTS
PHOTON-MOLECULE COLLISIONS
PREDISSOCIATION
ROTATIONAL STATES