Laser fluorescence study of the Pb + F2, Cl2 reactions: Internal state distribution of the PbCl product and radiative lifetimes of PbF(A,B) and PbCl(A)

Article abstract of DOI:10.1063/1.462189

The reactions of Pb atoms with molecular reagents F2 and Cl2 have been studied in a molecular beam apparatus by laser fluorescence detection of PbF and PbCl products.The experiments were performed in a beam-gas configuration under single-collision conditions.The PbCl product from Pb + Cl2 was observed in the vibrational levels υ<*>17 of the ground Χ₁ electronic state.The PbCl product vibrational state distribution was derived; the average vibrational excitation was found to be 21percent of the total available energy.For Pb + F2, PbF(Χ₁) product was detected in only the υ = 0 and 1 vibrational levels, and the rovibrational state distribution could be characterized by a 300 K Boltzmann distribution.By modulating the Pb beam, it was concluded that this observed product was an artifact and did not arise from bimolecular gas-phase collisions.The radiative lifetimes of the PbF(A,B) and PbCl(A) states were also measured and were also measured and were found to equal 4.9 +/- 0.3 μs, <*> 10 ns, and 1.14 +/- 0.06 μs, respectively, averaged over the observed vibrational levels.

Full text of DOI:10.1063/1.462189

Laser fluorescence study of the Pb+F2, Cl2 reactions: Internal state distribution of
the PbCl product and radiative lifetimes of PbF(A,B) and PbCl(A)
Jing Chen and Paul J. Dagdigian
Citation: The Journal of Chemical Physics 96, 1030 (1992); doi: 10.1063/1.462189
View online: http://dx.doi.org/10.1063/1.462189
View Table of Contents: http://scitation.aip.org/content/aip/journal/jcp/96/2?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:
155.247.166.234 On: Fri, 21 Nov 2014 18:12:49

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:
155.247.166.234 On: Fri, 21 Nov 2014 18:12:49

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:
155.247.166.234 On: Fri, 21 Nov 2014 18:12:49

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:
155.247.166.234 On: Fri, 21 Nov 2014 18:12:49

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:
155.247.166.234 On: Fri, 21 Nov 2014 18:12:49

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:
155.247.166.234 On: Fri, 21 Nov 2014 18:12:49