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Wallner M, Olsson E, Ideböhn V, Parriani M, Squibb RJ, Lundberg S, Cole D, Falcinelli S, Stranges S, Brunetti B, Dyke JM, Nyman G, Eland JHD, Hochlaf M, Feifel R. Structure and fragmentation of doubly ionized HNCS. J Chem Phys 2024; 161:044313. [PMID: 39056388 DOI: 10.1063/5.0215722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Accepted: 06/26/2024] [Indexed: 07/28/2024] Open
Abstract
Double ionization spectra of isothiocyanic acid (HNCS) have been measured using multi-electron and multi-ion coincidence techniques combined with high-level theoretical calculations. The adiabatic double ionization energy of HNCS is found at 27.1 ± 0.1 eV and is associated with the formation of the X 3A″ ground state of HNCS2+. The characteristics of different dissociation channels are examined and compared to the results of electronic structure calculations obtained by systematically elongating the three bonds H-NCS, HN-CS, and HNC-S. For instance, the adiabatic double ionization energy of the NCS fragment is deduced to be 30.95 ± 0.5 eV. In addition, the C+ and NS+ dissociation channels are of particular interest, possibly indicating the involvement of a structural rearrangement process upon doubly ionizing HNCS.
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Affiliation(s)
- Måns Wallner
- University of Gothenburg, Department of Physics, Origovägen 6B, 412 58 Gothenburg, Sweden
| | - Emelie Olsson
- University of Gothenburg, Department of Physics, Origovägen 6B, 412 58 Gothenburg, Sweden
| | - Veronica Ideböhn
- University of Gothenburg, Department of Physics, Origovägen 6B, 412 58 Gothenburg, Sweden
| | - Marco Parriani
- University of Gothenburg, Department of Physics, Origovägen 6B, 412 58 Gothenburg, Sweden
- University of Perugia, Department of Civil and Environmental Engineering, Via G. Duranti 93, 06125 Perugia, Italy
| | - Richard J Squibb
- University of Gothenburg, Department of Physics, Origovägen 6B, 412 58 Gothenburg, Sweden
| | - Sven Lundberg
- University of Gothenburg, Department of Physics, Origovägen 6B, 412 58 Gothenburg, Sweden
| | - Daniel Cole
- University of Gothenburg, Department of Physics, Origovägen 6B, 412 58 Gothenburg, Sweden
| | - Stefano Falcinelli
- University of Perugia, Department of Civil and Environmental Engineering, Via G. Duranti 93, 06125 Perugia, Italy
| | - Stefano Stranges
- CNR-Istituto Officina dei Materiali (IOM), Laboratorio TASC, 34149 Trieste, Italy
- Dipartimento di Chimica e Tecnologia dei Farmaci, Università Sapienza, Roma I-00185, Italy
| | - Bruno Brunetti
- Dipartimento di Chimica e Tecnologia dei Farmaci, Università Sapienza, Roma I-00185, Italy
| | - John M Dyke
- School of Chemistry, University of Southampton, Highfield, Southampton SO17 1BJ, United Kingdom
| | - Gunnar Nyman
- University of Gothenburg, Department of Chemistry and Molecular Biology, Box 462, 405 30 Gothenburg, Sweden
| | - John H D Eland
- University of Gothenburg, Department of Physics, Origovägen 6B, 412 58 Gothenburg, Sweden
- Oxford University, Department of Chemistry, Physical and Theoretical Chemistry Laboratory, South Parks Road, Oxford OX1 3QZ, United Kingdom
| | - Majdi Hochlaf
- Université Gustave Eiffel, COSYS/IMSE, 5 Bd Descartes, 77454 Champs sur Marne, France
| | - Raimund Feifel
- University of Gothenburg, Department of Physics, Origovägen 6B, 412 58 Gothenburg, Sweden
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Krupa J, Kosendiak I, Wierzejewska M. New data on photochemistry of the interstellar molecule: HNCS. Identification of the S⋯HCN complex. Phys Chem Chem Phys 2015; 17:22431-7. [DOI: 10.1039/c5cp03663a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
UV tunable laser induced photochemistry of matrix isolated HNCS leads to the formation of a hydrogen bonded complex between the sulfur atom and hydrogen cyanide: S(3P)⋯HCN.
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Affiliation(s)
- Justyna Krupa
- Faculty of Chemistry
- University of Wrocław
- 50-383 Wrocław
- Poland
| | - Iwona Kosendiak
- Faculty of Chemistry
- University of Wrocław
- 50-383 Wrocław
- Poland
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