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Formation and Spectroscopy of Dicyanotriacetylene (NC8N) in Solid Kr
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    Formation and Spectroscopy of Dicyanotriacetylene (NC8N) in Solid Kr
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    Institute of Physical Chemistry of the Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
    Institut des Sciences Moléculaires d’Orsay, UMR 8214 CNRS, Université Paris-Sud, 91405 Orsay, France
    *M. Turowski. Tel: +48 22 3433353. Fax: +48 22 3433333. E-mail address: [email protected]
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    The Journal of Physical Chemistry A

    Cite this: J. Phys. Chem. A 2015, 119, 11, 2701–2708
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    https://doi.org/10.1021/jp509908z
    Published November 17, 2014
    Copyright © 2014 American Chemical Society

    Abstract

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    Thermally induced creation of dicyanotriacetylene (NC8N) was observed in solid krypton. Samples were obtained by cryogenic trapping of gaseous cyanoacetylene/Kr mixtures subjected to electric discharges. Strong a 3Σ+uX 1Σ+g phosphorescence of NC8N is reported here for the first time; its vibronic structure permitted the measurement of several ground-state vibrational frequencies. Other chemical species, mostly smaller than the precursor molecule, have also been formed, among them the dicarbon molecule (C2), and these may serve as indispensable building blocks in the NC8N synthesis. Processes leading to the elongation of cyanoacetylenic chains are of potential importance for the chemistry of icy grains present in the interstellar gas clouds.

    Copyright © 2014 American Chemical Society

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    Supporting Information

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    Figures S1 and S2 depict the observed spectroscopic details, listed in Table 2. This material is available free of charge via the Internet at http://pubs.acs.org.

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    This article is cited by 7 publications.

    1. Urszula Szczepaniak, Robert Kołos, Marcin Gronowski, Michèle Chevalier, Jean-Claude Guillemin, Claudine Crépin. Synthesis and Electronic Phosphorescence of Dicyanooctatetrayne (NC10N) in Cryogenic Matrixes. The Journal of Physical Chemistry A 2018, 122 (25) , 5580-5588. https://doi.org/10.1021/acs.jpca.8b02700
    2. Urszula Szczepaniak, Robert Kołos, Marcin Gronowski, Jean-Claude Guillemin, and Claudine Crépin . Low Temperature Synthesis and Phosphorescence of Methylcyanotriacetylene. The Journal of Physical Chemistry A 2018, 122 (1) , 89-99. https://doi.org/10.1021/acs.jpca.7b09728
    3. Urszula Szczepaniak, Robert Kołos, Marcin Gronowski, Michèle Chevalier, Jean-Claude Guillemin, Michał Turowski, Thomas Custer, and Claudine Crépin . Cryogenic Photochemical Synthesis and Electronic Spectroscopy of Cyanotetracetylene. The Journal of Physical Chemistry A 2017, 121 (39) , 7374-7384. https://doi.org/10.1021/acs.jpca.7b07849
    4. Marcin Gronowski, Robert Kołos. A DFT Study on the Excited Electronic States of Cyanopolyynes: Benchmarks and Applications. Molecules 2022, 27 (18) , 5829. https://doi.org/10.3390/molecules27185829
    5. Urszula Szczepaniak, Robert Kołos, Jean-Claude Guillemin, Claudine Crépin. Phosphorescence of C5N− in Rare Gas Solids. Photochem 2022, 2 (2) , 263-271. https://doi.org/10.3390/photochem2020019
    6. Robert Kołos. Carbon chain extension processes in cryogenic environments: UV-assisted growth of polyynic nitriles in solidified rare gases. Low Temperature Physics 2019, 45 (6) , 583-589. https://doi.org/10.1063/1.5103249
    7. Michał Turowski, Urszula Szczepaniak, Thomas Custer, Marcin Gronowski, Robert Kołos. Electronic Spectroscopy of Methylcyanodiacetylene (CH 3 C 5 N). ChemPhysChem 2016, 17 (24) , 4068-4078. https://doi.org/10.1002/cphc.201600949

    The Journal of Physical Chemistry A

    Cite this: J. Phys. Chem. A 2015, 119, 11, 2701–2708
    Click to copy citationCitation copied!
    https://doi.org/10.1021/jp509908z
    Published November 17, 2014
    Copyright © 2014 American Chemical Society

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