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De Vos J, Schröder B, Rauhut G. Comprehensive quantum chemical analysis of the (ro)vibrational spectrum of thiirane and its deuterated isotopologue. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 302:123083. [PMID: 37423098 DOI: 10.1016/j.saa.2023.123083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 06/23/2023] [Accepted: 06/26/2023] [Indexed: 07/11/2023]
Abstract
The (ro)vibrational spectra of thiirane, c-C2H4S, and its fully deuterated isotopologue, c-C2D4S, have been studied by means of vibrational configuration interaction theory, VCI, its incremental variant, iVCI, and subsequent variational rovibrational calculations, RVCI, which rely on multidimensional potential energy surfaces of coupled-cluster quality including up to four-mode coupling terms. Accurate geometrical parameters, fundamental vibrational transitions and first overtones, rovibrational spectra and rotational spectroscopic constants have been determined from these calculations and were compared with experimental results whenever available. A number of tentative misassignments in the vibrational spectra could be resolved and most results for the deuterated thiirane are high-level predictions, which may guide experiments to come. Besides this, a new implementation of infrared intensities within the iVCI framework has been tested for the transitions of the title compounds and are compared with results obtained from standard VCI calculations.
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Affiliation(s)
- John De Vos
- Institute for Theoretical Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany; Department of Chemistry, Ghent University, Krijgslaan 281, 9000, Ghent, Belgium.
| | - Benjamin Schröder
- Institute for Physical Chemistry, University of Göttingen, Tammannstr. 6, 37077, Göttingen, Germany.
| | - Guntram Rauhut
- Institute for Theoretical Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany.
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Barnum TJ, Siebert MA, Lee KLK, Loomis RA, Changala PB, Charnley SB, Sita ML, Xue C, Remijan AJ, Burkhardt AM, McGuire BA, Cooke IR. A Search for Heterocycles in GOTHAM Observations of TMC-1. J Phys Chem A 2022; 126:2716-2728. [PMID: 35442689 DOI: 10.1021/acs.jpca.2c01435] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We have conducted an extensive search for nitrogen-, oxygen-, and sulfur-bearing heterocycles toward Taurus Molecular Cloud 1 (TMC-1) using the deep, broadband centimeter-wavelength spectral line survey of the region from the GOTHAM large project on the Green Bank Telescope. Despite their ubiquity in terrestrial chemistry, and the confirmed presence of a number of cyclic and polycyclic hydrocarbon species in the source, we find no evidence for the presence of any heterocyclic species. Here, we report the derived upper limits on the column densities of these molecules obtained by Markov Chain Monte Carlo (MCMC) analysis and compare this approach to traditional single-line upper limit measurements. We further hypothesize why these molecules are absent in our data, how they might form in interstellar space, and the nature of observations that would be needed to secure their detection.
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Affiliation(s)
- Timothy J Barnum
- Department of Chemistry, Union College, Schenectady, New York 12308, United States
| | - Mark A Siebert
- Department of Astronomy, University of Virginia, Charlottesville, Virginia 22904, United States
| | - Kin Long Kelvin Lee
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Ryan A Loomis
- National Radio Astronomy Observatory, Charlottesville, Virginia 22903, United States
| | - P Bryan Changala
- Center for Astrophysics
- Harvard & Smithsonian, Cambridge, Massachusetts 02138, United States
| | - Steven B Charnley
- Astrochemistry Laboratory and the Goddard Center for Astrobiology, NASA Goddard Space Flight Center, Greenbelt, Maryland 20771, United States
| | - Madelyn L Sita
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
| | - Ci Xue
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Anthony J Remijan
- National Radio Astronomy Observatory, Charlottesville, Virginia 22903, United States
| | - Andrew M Burkhardt
- Department of Physics, Wellesley College, 106 Central Street, Wellesley, Massachusetts 02481, United States
| | - Brett A McGuire
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States.,National Radio Astronomy Observatory, Charlottesville, Virginia 22903, United States.,Center for Astrophysics
- Harvard & Smithsonian, Cambridge, Massachusetts 02138, United States
| | - Ilsa R Cooke
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada
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Penocchio E, Mendolicchio M, Tasinato N, Barone V. Structural features of the carbon-sulfur chemical bond: a semi-experimental perspective. CAN J CHEM 2016; 94:1065-1076. [PMID: 28912608 PMCID: PMC5595238 DOI: 10.1139/cjc-2016-0282] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
In this work semi-experimental and theoretical equilibrium geometries of 10 sulfur-containing organic molecules, as well as 4 oxygenated ones, are determined by means of a computational protocol based on density functional theory. The results collected in the present paper further enhance our online database of accurate semi-experimental equilibrium molecular geometries, adding 13 new molecules containing up to 8 atoms, for 12 of which the first semi-experimental equilibrium structure is reported, to the best of our knowledge. We focus in particular on sulfur-containing compounds, aiming both to provide new accurate data on some rather important chemical moieties, only marginally represented in the literature of the field, and to examine the structural features of carbon-sulfur bonds in the light of the previously presented linear regression approach. The structural changes issuing from substitution of oxygen by sulfur are discussed to get deeper insights on how modifications in electronic structure and nuclear potential can affect equilibrium geometries. With respect to our previous works, we perform non-linear constrained optimizations of equilibrium SE structures with a new general and user-friendly software under development in our group with updated definition of useful statistical indicators.
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Bane MK, Thompson CD, Appadoo DRT, McNaughton D. Synchrotron far infrared spectroscopy of the ground, ν5, and ν15 states of thiirane. J Chem Phys 2012; 137:084306. [DOI: 10.1063/1.4747191] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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Kawashima Y, Sato A, Orita Y, Hirota E. Intermolecular Interaction between CO or CO2 and Ethylene Oxide or Ethylene Sulfide in a Complex, Investigated by Fourier Transform Microwave Spectroscopy and Ab Initio Calculations. J Phys Chem A 2012; 116:1224-36. [DOI: 10.1021/jp211030h] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yoshiyuki Kawashima
- Department of Applied Chemistry, Faculty of Engineering, Kanagawa Institute of Technology, Atsugi, Kanagawa 240-0292, Japan
| | - Akinori Sato
- Department of Applied Chemistry, Faculty of Engineering, Kanagawa Institute of Technology, Atsugi, Kanagawa 240-0292, Japan
| | - Yukari Orita
- Department of Applied Chemistry, Faculty of Engineering, Kanagawa Institute of Technology, Atsugi, Kanagawa 240-0292, Japan
| | - Eizi Hirota
- The Graduate University for Advanced Studies, Hayama,
Kanagawa 240-0193, Japan
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Cocinero EJ, Sánchez R, Blanco S, Lesarri A, López JC, Alonso JL. Weak hydrogen bonds C–H⋯S and C–H⋯F–C in the thiirane–trifluoromethane dimer. Chem Phys Lett 2005. [DOI: 10.1016/j.cplett.2004.11.073] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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