Osnabrück 2002 – wissenschaftliches Programm
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A: Atomphysik
A 16: Photoionisation III (gemeinsam mit FV Molekülphysik)
A 16.2: Vortrag
Donnerstag, 7. März 2002, 16:45–17:00, HS 15/E10
Photodissociation Dynamics of BrCl Studied by Wavelength Dependent Ion Imaging — •Marco Beckert1, Eloy R. Wouters1, Eckart Wrede2, Andrew J. Orr-Ewing1, and Michael N.R. Ashfold1 — 1University of Bristol, Department of Physical and Theoretical Chemistry, Cantock’s Close, Bristol BS8 1TS, UK — 2University of Durham, Department of Chemistry, South Road, Durham DH1 3LE, UK
Results of high-resolution ion imaging experiments on the photodissociation dynamics of BrCl at numerous excitation wavelengths in the range 320 − 560 nm will be presented.
Image analysis provides the electronic branching into the two active product channels Br(2P3/2) + Cl(2P3/2) and Br(2P3/2) + Cl(2P1/2) as well as the recoil anisotropy of each set of products as a function of initial BrCl ground state vibrational excitation and dissociation energy. These results then allow the deconvolution of the (separately measured) parent absorption spectrum into contributions associated with a parallel excitation (Δ Ω = 0) to the B 3Π(0+) state and a perpendicular excitation (Δ Ω = ± 1) to the A 3Π(1) and C 1Π(1) state.