A new high quality potential energy surface is calculated at a coupled-cluster single double triple level with an aug-cc-pV5Z basis set for the HCS+–He system. This potential energy surface is used in low energy quantum scattering calculations to provide a set of (de)-excitation cross sections and rate coefficients among the first 20 rotational levels of HCS+ by He in the range of temperature from 5 K to 100 K. The paper discusses the impact of the new ab initio potential energy surface on the cross sections at low energy and provides a comparison with the HCO+–He system. The HCS+–He rate coefficients for the strongest transitions differ by factors of up to 2.5 from previous rate coefficients; thus, analysis of astrophysical spectra should be reconsidered with the new rate coefficients.
Skip Nav Destination
,
,
Article navigation
28 July 2015
Research Article|
July 29 2015
New potential energy surface for the HCS+–He system and inelastic rate coefficients Available to Purchase
Marie-Lise Dubernet;
Marie-Lise Dubernet
1LERMA, UMR8112,
PSL Research University
, Observatoire de Paris, Sorbonne Universités, UPMC Univ Paris 06, CNRS, 5 Place Janssen, 92195 Meudon, France
Search for other works by this author on:
Ernesto Quintas-Sánchez;
Ernesto Quintas-Sánchez
1LERMA, UMR8112,
PSL Research University
, Observatoire de Paris, Sorbonne Universités, UPMC Univ Paris 06, CNRS, 5 Place Janssen, 92195 Meudon, France
Search for other works by this author on:
Philip Tuckey
Philip Tuckey
2LNE-SYRTE,
PSL Research University
, Observatoire de Paris, Sorbonne Universités, UPMC Univ Paris 06, CNRS, LNE, 61 Av. de l’Observatoire, 75014 Paris, France
Search for other works by this author on:
Marie-Lise Dubernet
1
Ernesto Quintas-Sánchez
1
Philip Tuckey
2
1LERMA, UMR8112,
PSL Research University
, Observatoire de Paris, Sorbonne Universités, UPMC Univ Paris 06, CNRS, 5 Place Janssen, 92195 Meudon, France
2LNE-SYRTE,
PSL Research University
, Observatoire de Paris, Sorbonne Universités, UPMC Univ Paris 06, CNRS, LNE, 61 Av. de l’Observatoire, 75014 Paris, France
J. Chem. Phys. 143, 044315 (2015)
Article history
Received:
December 09 2014
Accepted:
July 06 2015
Citation
Marie-Lise Dubernet, Ernesto Quintas-Sánchez, Philip Tuckey; New potential energy surface for the HCS+–He system and inelastic rate coefficients. J. Chem. Phys. 28 July 2015; 143 (4): 044315. https://doi.org/10.1063/1.4926839
Download citation file:
Pay-Per-View Access
$40.00
Sign In
You could not be signed in. Please check your credentials and make sure you have an active account and try again.
Citing articles via
DeePMD-kit v2: A software package for deep potential models
Jinzhe Zeng, Duo Zhang, et al.
CREST—A program for the exploration of low-energy molecular chemical space
Philipp Pracht, Stefan Grimme, et al.
GPAW: An open Python package for electronic structure calculations
Jens Jørgen Mortensen, Ask Hjorth Larsen, et al.
Related Content
Composite vibrational spectroscopy of the group 12 difluorides: ZnF2, CdF2, and HgF2
J. Chem. Phys. (April 2016)
Composite electron propagator methods for calculating ionization energies
J. Chem. Phys. (June 2016)
Binding energies of hydrogen-bonded complexes from extrapolation with localized basis sets
J. Chem. Phys. (August 2007)