Investigating the breakup dynamics of dihydrogen sulfide ions recombining with electrons

Fredrik Hellberg; Vitali Zhaunerchyk; Anneli Ehlerding; Wolf D. Geppert; Mats Larsson; Richard D. Thomas; Mark E. Bannister; Eric Bahati; C. Randy Vane; Fabian Österdahl; Petr Hlavenka; Magnus Af Ugglas

doi:10.1063/1.1930830

Investigating the breakup dynamics of dihydrogen sulfide ions recombining with electrons

Fredrik Hellberg, Vitali Zhaunerchyk, Anneli Ehlerding, Wolf D. Geppert, Mats Larsson, Richard D. Thomas, Mark E. Bannister, Eric Bahati, C. Randy Vane, Fabian Österdahl, Petr Hlavenka, Magnus Af Ugglas

Electrical & Chemical Operations

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

This paper presents results concerning measurements of the dissociative recombination (DR) of dihydrogen sulfide ions. In combination with the ion storage ring CRYRING an imaging technique was used to investigate the breakup dynamics of the three-body channel in the DR of SD2+32. The two energetically available product channels S (P3) +2D (S2) and S (D1) +2D (S2) were both populated, with a branching fraction of the ground-state channel of 0.6(0.1). Information about the angle between the two deuterium atoms upon dissociation was obtained together with information about how the available kinetic energy was distributed between the two light fragments. The recombination cross sections as functions of energy in the interval of 1 meV to 0.3 eV in the center-of-mass frame are presented for SH2+34. The thermal rate coefficient for the DR of SH2+34 was determined to be (4.8±1.0) × 10-7 (T300)-0.72±0.1 cm3 s-1 over this interval.

Original language	English
Article number	224314
Journal	Journal of Chemical Physics
Volume	122
Issue number	22
DOIs	https://doi.org/10.1063/1.1930830
State	Published - Jun 8 2005

Funding

We gratefully thank the staff at the Manne Siegbahn Laboratory for their support. This work was supported by the Swedish Institute and the IHP programme of the EC under Contract No. HPRN-CT-2000-00142 P.H. was supported under Contract No. HPMP-CT-2001-00226. W.D.G. acknowledges the European Union (EU) for granting a “Marie Curie Individual Fellowship” under the EU programme “Improving Human Potential,” Contract No. HMPF-CT-200201583. M.E.B. and C.R.V. gratefully acknowledge support by the US DOE, Office of Basic Energy Sciences, Division of Chemical Sciences, under Contract No. DE-AC05-96OR22464 with UT-Battelle Corporation. E.B. gratefully acknowledges the support from the ORNL Postdoctoral Research Associates Program administered jointly by Oak Ridge Institute for Science and Education and Oak Ridge National Laboratory.

Funders	Funder number
Division of Chemical Sciences	DE-AC05-96OR22464
U.S. Department of Energy
Basic Energy Sciences
Oak Ridge National Laboratory
Oak Ridge Institute for Science and Education
Swedish Insitute
European Commission	HMPF-CT-200201583, HPRN-CT-2000-00142, HPMP-CT-2001-00226

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10.1063/1.1930830

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title = "Investigating the breakup dynamics of dihydrogen sulfide ions recombining with electrons",

abstract = "This paper presents results concerning measurements of the dissociative recombination (DR) of dihydrogen sulfide ions. In combination with the ion storage ring CRYRING an imaging technique was used to investigate the breakup dynamics of the three-body channel in the DR of SD2+32. The two energetically available product channels S (P3) +2D (S2) and S (D1) +2D (S2) were both populated, with a branching fraction of the ground-state channel of 0.6(0.1). Information about the angle between the two deuterium atoms upon dissociation was obtained together with information about how the available kinetic energy was distributed between the two light fragments. The recombination cross sections as functions of energy in the interval of 1 meV to 0.3 eV in the center-of-mass frame are presented for SH2+34. The thermal rate coefficient for the DR of SH2+34 was determined to be (4.8±1.0) × 10-7 (T300)-0.72±0.1 cm3 s-1 over this interval.",

author = "Fredrik Hellberg and Vitali Zhaunerchyk and Anneli Ehlerding and Geppert, {Wolf D.} and Mats Larsson and Thomas, {Richard D.} and Bannister, {Mark E.} and Eric Bahati and Vane, {C. Randy} and Fabian {\"O}sterdahl and Petr Hlavenka and {Af Ugglas}, Magnus",

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AU - Larsson, Mats

AU - Thomas, Richard D.

AU - Bannister, Mark E.

AU - Bahati, Eric

AU - Vane, C. Randy

AU - Österdahl, Fabian

AU - Hlavenka, Petr

AU - Af Ugglas, Magnus

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N2 - This paper presents results concerning measurements of the dissociative recombination (DR) of dihydrogen sulfide ions. In combination with the ion storage ring CRYRING an imaging technique was used to investigate the breakup dynamics of the three-body channel in the DR of SD2+32. The two energetically available product channels S (P3) +2D (S2) and S (D1) +2D (S2) were both populated, with a branching fraction of the ground-state channel of 0.6(0.1). Information about the angle between the two deuterium atoms upon dissociation was obtained together with information about how the available kinetic energy was distributed between the two light fragments. The recombination cross sections as functions of energy in the interval of 1 meV to 0.3 eV in the center-of-mass frame are presented for SH2+34. The thermal rate coefficient for the DR of SH2+34 was determined to be (4.8±1.0) × 10-7 (T300)-0.72±0.1 cm3 s-1 over this interval.

AB - This paper presents results concerning measurements of the dissociative recombination (DR) of dihydrogen sulfide ions. In combination with the ion storage ring CRYRING an imaging technique was used to investigate the breakup dynamics of the three-body channel in the DR of SD2+32. The two energetically available product channels S (P3) +2D (S2) and S (D1) +2D (S2) were both populated, with a branching fraction of the ground-state channel of 0.6(0.1). Information about the angle between the two deuterium atoms upon dissociation was obtained together with information about how the available kinetic energy was distributed between the two light fragments. The recombination cross sections as functions of energy in the interval of 1 meV to 0.3 eV in the center-of-mass frame are presented for SH2+34. The thermal rate coefficient for the DR of SH2+34 was determined to be (4.8±1.0) × 10-7 (T300)-0.72±0.1 cm3 s-1 over this interval.

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Investigating the breakup dynamics of dihydrogen sulfide ions recombining with electrons

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