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Photodissociation of S2 (X3ςg -, a1Δg, and b1ςg +) in the 320-205 nm Region

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Photodissociation of S2 (X3ςg -, a1Δg, and b1ςg +) in the 320-205 nm Region. / Sun, Z. F.; Farooq, Z.; Parker, D. H.; Martin, P. J. J.; Western, C. M.

In: Journal of Physical Chemistry A, Vol. 123, No. 32, 15.08.2019, p. 6886-6896.

Research output: Contribution to journalArticle

Harvard

Sun, ZF, Farooq, Z, Parker, DH, Martin, PJJ & Western, CM 2019, 'Photodissociation of S2 (X3ςg -, a1Δg, and b1ςg +) in the 320-205 nm Region', Journal of Physical Chemistry A, vol. 123, no. 32, pp. 6886-6896. https://doi.org/10.1021/acs.jpca.9b05350

APA

Sun, Z. F., Farooq, Z., Parker, D. H., Martin, P. J. J., & Western, C. M. (2019). Photodissociation of S2 (X3ςg -, a1Δg, and b1ςg +) in the 320-205 nm Region. Journal of Physical Chemistry A, 123(32), 6886-6896. https://doi.org/10.1021/acs.jpca.9b05350

Vancouver

Sun ZF, Farooq Z, Parker DH, Martin PJJ, Western CM. Photodissociation of S2 (X3ςg -, a1Δg, and b1ςg +) in the 320-205 nm Region. Journal of Physical Chemistry A. 2019 Aug 15;123(32):6886-6896. https://doi.org/10.1021/acs.jpca.9b05350

Author

Sun, Z. F. ; Farooq, Z. ; Parker, D. H. ; Martin, P. J. J. ; Western, C. M. / Photodissociation of S2 (X3ςg -, a1Δg, and b1ςg +) in the 320-205 nm Region. In: Journal of Physical Chemistry A. 2019 ; Vol. 123, No. 32. pp. 6886-6896.

Bibtex

@article{acfdf0a806044ed8a3a48c488096ce82,
title = "Photodissociation of S2 (X3ςg -, a1Δg, and b1ςg +) in the 320-205 nm Region",
abstract = "Photodissociation of vibrationally and electronically excited sulfur dimer molecules (S2) has been studied in a combined experimental and computational quantum chemistry study in order to characterize bound-continuum transitions. Ab initio quantum chemistry calculations are carried out to predict the potential energy curves, spin-orbit coupling, transition moments, and bound-continuum spectra of S2 for comparison with the experimental data. The experiment uses velocity map imaging to measure S-atom production following S2 photoexcitation in the ultraviolet region (320-205 nm). A pulsed electric discharge in H2S produces ground-state S2 X3ςg -(v = 0-15) as well as electronically excited singlet sulfur and b1ςg +(v = 0, 1), and evidence is presented for the production and photodissociation of S2 a1Δg. In a previous paper, we reported threshold photodissociation of S2X3ςg -(v = 0) in the 282-266 nm region. In the present study, S(3PJ) fine structure branching and angular distributions for photodissociation of S2 (X3ςg -(v = 0), a1Δg and b1ςg +) via the B″3IIu, B3ςu - and 11IIu excited states are reported. In addition, photodissociation of the X3ςg -(v = 0) state of S2 to the second dissociation limit producing S(3P2) + S(1D) is characterized. The present results on S2 photodynamics are compared to those of the well-studied electronically isovalent O2 molecule.",
author = "Sun, {Z. F.} and Z. Farooq and Parker, {D. H.} and Martin, {P. J. J.} and Western, {C. M.}",
year = "2019",
month = "8",
day = "15",
doi = "10.1021/acs.jpca.9b05350",
language = "English",
volume = "123",
pages = "6886--6896",
journal = "Journal of Physical Chemistry A",
issn = "1089-5639",
publisher = "American Chemical Society",
number = "32",

}

RIS - suitable for import to EndNote

TY - JOUR

T1 - Photodissociation of S2 (X3ςg -, a1Δg, and b1ςg +) in the 320-205 nm Region

AU - Sun, Z. F.

AU - Farooq, Z.

AU - Parker, D. H.

AU - Martin, P. J. J.

AU - Western, C. M.

PY - 2019/8/15

Y1 - 2019/8/15

N2 - Photodissociation of vibrationally and electronically excited sulfur dimer molecules (S2) has been studied in a combined experimental and computational quantum chemistry study in order to characterize bound-continuum transitions. Ab initio quantum chemistry calculations are carried out to predict the potential energy curves, spin-orbit coupling, transition moments, and bound-continuum spectra of S2 for comparison with the experimental data. The experiment uses velocity map imaging to measure S-atom production following S2 photoexcitation in the ultraviolet region (320-205 nm). A pulsed electric discharge in H2S produces ground-state S2 X3ςg -(v = 0-15) as well as electronically excited singlet sulfur and b1ςg +(v = 0, 1), and evidence is presented for the production and photodissociation of S2 a1Δg. In a previous paper, we reported threshold photodissociation of S2X3ςg -(v = 0) in the 282-266 nm region. In the present study, S(3PJ) fine structure branching and angular distributions for photodissociation of S2 (X3ςg -(v = 0), a1Δg and b1ςg +) via the B″3IIu, B3ςu - and 11IIu excited states are reported. In addition, photodissociation of the X3ςg -(v = 0) state of S2 to the second dissociation limit producing S(3P2) + S(1D) is characterized. The present results on S2 photodynamics are compared to those of the well-studied electronically isovalent O2 molecule.

AB - Photodissociation of vibrationally and electronically excited sulfur dimer molecules (S2) has been studied in a combined experimental and computational quantum chemistry study in order to characterize bound-continuum transitions. Ab initio quantum chemistry calculations are carried out to predict the potential energy curves, spin-orbit coupling, transition moments, and bound-continuum spectra of S2 for comparison with the experimental data. The experiment uses velocity map imaging to measure S-atom production following S2 photoexcitation in the ultraviolet region (320-205 nm). A pulsed electric discharge in H2S produces ground-state S2 X3ςg -(v = 0-15) as well as electronically excited singlet sulfur and b1ςg +(v = 0, 1), and evidence is presented for the production and photodissociation of S2 a1Δg. In a previous paper, we reported threshold photodissociation of S2X3ςg -(v = 0) in the 282-266 nm region. In the present study, S(3PJ) fine structure branching and angular distributions for photodissociation of S2 (X3ςg -(v = 0), a1Δg and b1ςg +) via the B″3IIu, B3ςu - and 11IIu excited states are reported. In addition, photodissociation of the X3ςg -(v = 0) state of S2 to the second dissociation limit producing S(3P2) + S(1D) is characterized. The present results on S2 photodynamics are compared to those of the well-studied electronically isovalent O2 molecule.

UR - http://www.scopus.com/inward/record.url?scp=85070671204&partnerID=8YFLogxK

U2 - 10.1021/acs.jpca.9b05350

DO - 10.1021/acs.jpca.9b05350

M3 - Article

C2 - 31322887

VL - 123

SP - 6886

EP - 6896

JO - Journal of Physical Chemistry A

JF - Journal of Physical Chemistry A

SN - 1089-5639

IS - 32

ER -