Photochemistry of XCH2CN (X = -Cl, -SH) in Argon Matrices

Abstract : We report infrared spectra and photochemical behavior of the potentially astrochemically significant species, mercaptoacetonitrile (HS-CHC≡N) and, for comparison purposes, chloroacetonitrile (Cl-CHC≡N), both suspended in an argon matrix at 6 K. Photolytic formation of the isocyano products HS-CH-NC and Cl-CH-NC were observed as well as CHNSC and CHSCN (in HS-CHCN photolysis). While no dissociation products were observed for Cl-CH-CN, photolysis of HS-CH-CN produced compounds necessitating the loss of the CN group to form CH═S, the SH group to form HC-CN and HC-CN, or both CN and SH to form CH and CH. Observation of emission spectra upon annealing indicates the presence of free sulfur atom in matrices of photolyzed HS-CH-CN.
Document type :
Journal articles
Complete list of metadatas

Cited literature [106 references]  Display  Hide  Download

https://hal-univ-rennes1.archives-ouvertes.fr/hal-02149782
Contributor : Laurent Jonchère <>
Submitted on : Friday, June 21, 2019 - 3:49:09 PM
Last modification on : Wednesday, June 26, 2019 - 11:36:26 AM

File

 Restricted access
To satisfy the distribution rights of the publisher, the document is embargoed until : 2019-10-11

Please log in to resquest access to the document

Identifiers

Citation

Joanna Zapala, Thomas Custer, Jean-Claude Guillemin, Marcin Gronowski. Photochemistry of XCH2CN (X = -Cl, -SH) in Argon Matrices. Journal of Physical Chemistry A, American Chemical Society, 2019, 123 (17), pp.3818-3830. ⟨10.1021/acs.jpca.9b01983⟩. ⟨hal-02149782⟩

Share

Metrics

Record views

16