Correlated product state distributions in the unimolecular reaction of NCNO

Article abstract of DOI:10.1063/1.456523

Following excitation to S₁, expansion-cooled NCNO undergoes nonradiative couplings to S₀ and predissociates to CN and NO.Doppler profiles of selected CN B ²Σ⁺ <*> X ²Σ⁺ rotational lines were recorded using LIF at several excess energies between 0 and 3000 cm^-1.This yields NO V,R distributions associated with specific CN(X ²Σ⁺) rotational states.The profiles can be fit using the statistical PST/SSE model, and the correlated distributions show no evidence of dynamical bias or exit channel barriers.Doppler profiles generated with polarized lasers show little or no spatial anisotropy parameters β ca. 0. even at excess energies where predicted unimolecular lifetimes are <*> 1 ps.Possible causes for the lack of spatial anisotropy are discussed.Analyses of NO fragment LIF spectra obtained at excess energies of 2348 and 2875 cm^-1 show a slight preference for the Π(A') Λ-doublet component for J <*>30.5, suggesting planar dissociation.An in-plane orientation of the singly occupied p? lobe in NO is to be expected for dissociation on the ground (A') electronic potential energy surface.

Full text of DOI:10.1063/1.456523

Correlated product state distributions in the unimolecular reaction of NCNO
C. X. W. Qian, A. Ogai, H. Reisler, and C. Wittig
Citation: The Journal of Chemical Physics 90, 209 (1989); doi: 10.1063/1.456523
View online: http://dx.doi.org/10.1063/1.456523
View Table of Contents: http://scitation.aip.org/content/aip/journal/jcp/90/1?ver=pdfcov
Published by the AIP Publishing
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This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
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This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
141.209.100.60 On: Tue, 23 Dec 2014 15:17:00

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
141.209.100.60 On: Tue, 23 Dec 2014 15:17:00

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
141.209.100.60 On: Tue, 23 Dec 2014 15:17:00

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
141.209.100.60 On: Tue, 23 Dec 2014 15:17:00

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
141.209.100.60 On: Tue, 23 Dec 2014 15:17:00

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
141.209.100.60 On: Tue, 23 Dec 2014 15:17:00

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
141.209.100.60 On: Tue, 23 Dec 2014 15:17:00