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Title: Photodissociation of vibrationally excited SH and SD radicals at 288 and 291 nm: The S(1D2) channel
Author(s): Janssen, L.M.C.; Loo, M.P.J. van der ; Groenenboom, G.C. ; Wu, S.M. ; Radenovic, D. ; Roij, A.J.A. van; Garcia, I.A.; Parker, D.H.
Publication year: 2007
Source: Journal of Chemical Physics, vol. 126, iss. 9, (2007), pp. 094304-094304-8
ISSN: 0021-9606
Publication type: Article / Letter to editor

Please use this identifier to cite or link to this item : https://hdl.handle.net/2066/36317   https://hdl.handle.net/2066/36317

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Subject: Molecular and Laser Physics
Theoretical Chemistry
Organization: Theoretical Chemistry
Molecular and Laser Physics
Journal title:
Journal of Chemical Physics
Volume: vol. 126
Issue: iss. 9
Page start: p. 094304
Page end: p. 094304-8
Abstract:
Ultraviolet photodissociation of SH (X (2)Pi, upsilon(')=2-7) and SD (X (2)Pi, upsilon(')=3-7) has been studied at 288 and 291 nm, using the velocity map imaging technique to probe the angular and speed distributions of the S(D-1(2)) products. Photodissociation cross sections for the A (2)Sigma(+)<- X (2)Pi(upsilon(')) and (2)Delta <- X (2)Pi(upsilon(')) transitions have been obtained by ab initio calculations at the CASSCF-MRSDCI/aug-cc-pV5Z level of theory. Both the experimental and theoretical results show that SH/SD photodissociation from X (2)Pi (upsilon(')<= 7) proceeds via the repulsive wall of the A (2)Sigma(+) state. The angular distributions of S(D-1(2)) indicate that the dissociation approaches the sudden recoil limit of the A (2)Sigma(+) state, yielding strongly polarized fragments. The S(D-1(2)) atoms are predominantly produced with total electronic angular momentum perpendicular to the recoil axis. (c) 2007 American Institute of Physics.

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