English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Photofragment orientation as a probe of near-threshold non-adiabatic phenomena in the photodissociation of ICN

MPS-Authors
/persons/resource/persons252305

Hasselbrink,  Eckart
Fritz Haber Institute, Max Planck Society;
Department of Chemistry, Stanford University;

External Ressource
No external resources are shared
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

Black, J. F., Hasselbrink, E., Waldeck, J. R., & Zare, R. N. (1990). Photofragment orientation as a probe of near-threshold non-adiabatic phenomena in the photodissociation of ICN. Molecular Physics, 71(5), 1143-1153. doi:10.1080/00268979000102381.


Cite as: http://hdl.handle.net/21.11116/0000-0007-5F30-9
Abstract
Cyanogen iodide (ICN) is photodissociated at 249 nm. The CN(X 2Σ+, v = 2) fragments are probed by sub-Doppler laser-induced fluorescence (LIF) using circularly polarized light, which allows resolution of the F1(J = N + ½) and F2(J = N - ½) spin-rotation doublets. These components are shown to be oriented, i.e. to possess a non-statistical non-centrosymmetric MJ quantum-state distribution. The sign and magnitude of the orientation vary between components and are shown to have some correlation with the energetic threshold for production of the I(2P1/2) spin-orbit state. These observations are briefly discussed in the context of breakdown of the Born-Oppenheimer approximation in this system.