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This content will become publicly available on June 26, 2019

Title: Semiempirical breakdown curves of C 2N (+) and C 3N (+) molecules; application to products branching ratios predictions of physical and chemical processes involving these adducts

Here, we constructed semiempirical breakdown curves (BDC) for C 2N, C 3N, C 2N + and C 3N + molecules. These BDC, which are energy dependent dissociation branching ratios (BR) curves, were used to predict products branching ratios for various processes leading to the formation of C 2N (+) and C 3N (+) excited adducts. These processes, of astrochemical interest, are neutral-neutral and ion-molecule reactions, dissociative recombination and charge transfer reactions with He +. Model predictions of BR are compared to the literature data and to reported values in the kinetic database for astrochemistry KIDA. With the new BR values, the C nN abundances in cold cores were simulated.
Authors:
ORCiD logo [1] ; ORCiD logo [2] ;  [1] ;  [2] ; ORCiD logo [3] ;  [4] ;  [5] ;  [6] ;  [1] ; ORCiD logo [2] ;  [7] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [8] ;  [2] ;  [1] ; ORCiD logo [9]
  1. IN2P3-CNRS and Univ. Paris-Sud, Orsay Cedex (France)
  2. INP-CNRS and Univ. Paris-Sud, Orsay Cedex (France)
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  4. Univ. Autonoma de Madrid, Madrid (Spain)
  5. Univ. Libre de Bruxelles, Bruxelles (Belgium)
  6. Institut de Recherche en Astrophysique et Planetologie CINP-CNRS Univ. Toulouse, Toulouse (France)
  7. INP-CNRS and Univ. Paris-Sud, Orsay Cedex (France); Lund Univ. (Sweden)
  8. Centre de Sciences Nucleaires et de Sciences de la Matiere, Orsay Cedex (France); Univ. Paris Saclay, GIf sur Yvette (France)
  9. Univ. de Bordeaux CNRS, Pessac (France)
Publication Date:
Report Number(s):
LA-UR-18-23607
Journal ID: ISSN 2405-6758
Grant/Contract Number:
AC52-06NA25396
Type:
Accepted Manuscript
Journal Name:
Molecular Astrophysics
Additional Journal Information:
Journal Name: Molecular Astrophysics; Journal ID: ISSN 2405-6758
Research Org:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org:
Universities/Institutions; USDOE
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; Inorganic and Physical Chemistry; Carbon and nitrogen-based molecules; dissociation branching ratios; breakdown curves; astrochemistry; KIDA database; cold cores
OSTI Identifier:
1458963