Počet záznamů: 1

HNC/HCN Ratio in Acetonitrile, Formamide, and BrCN Discharge

  1. 1.
    0359561 - UFCH-W 2012 RIV US eng J - Článek v odborném periodiku
    Ferus, Martin - Kubelík, Petr - Kawahata, K. - Dryahina, Kseniya - Španěl, Patrik - Civiš, Svatopluk
    HNC/HCN Ratio in Acetonitrile, Formamide, and BrCN Discharge.
    Journal of Physical Chemistry A. Roč. 115, č. 10 (2011), s. 1885-1899 ISSN 1089-5639
    Grant CEP: GA AV ČR IAA400400705; GA AV ČR IAAX00100903; GA ČR GAP208/10/2302; GA ČR GA202/09/0800
    Výzkumný záměr: CEZ:AV0Z40400503
    Klíčová slova: transform infrared spectroscopy * transition sipole moment * HNC/HCN abundance ratio
    Kód oboru RIV: CF - Fyzikální chemie a teoretická chemie
    Impakt faktor: 2.946, rok: 2011

    Time-resolved Fourier transform (FT) spectrometry was used to study the dynamics of radical reactions forming the HCN and HNC isomers in pulsed glow discharges through vapors of BrCN, acetonitrile (CH3CN), and formamide (HCONH2). Stable gaseous products of discharge chemistry were analyzed by selected ion flow tube mass spectrometry (SIFT-MS). Ratios of concentrations of the HNC/HCN isomers obtained using known transition dipole moments of rovibrational cold bands v(1) were found to be in the range 2.2-3%. A kinetic model was used to assess the roles the radical chemistry and ion chemistry play in the formation of these two isomers. Exclusion of the radical reactions from the model resulted in a value of the HNC/HCN ratio 2 orders of magnitude lower than the experimental results, thus confirming their dominant role. The major process responsible for the formation of the HNC isomer is the reaction of the HCN isomer with the H atoms.
    Trvalý link: http://hdl.handle.net/11104/0006442