Formation and Spectroscopy
of Dicyanotriacetylene (NC<sub>8</sub>N) in Solid Kr
Michał Turowski
Claudine Crépin
Stéphane Douin
Robert Kołos
10.1021/jp509908z.s001
https://acs.figshare.com/articles/journal_contribution/Formation_and_Spectroscopy_of_Dicyanotriacetylene_NC_sub_8_sub_N_in_Solid_Kr/2184772
Thermally
induced creation of dicyanotriacetylene (NC<sub>8</sub>N) was observed
in solid krypton. Samples were obtained by cryogenic trapping of gaseous
cyanoacetylene/Kr mixtures subjected to electric discharges. Strong
a <sup>3</sup>Σ<sup>+</sup><sub>u</sub> <i>→ </i>X <sup>1</sup>Σ<sup>+</sup><sub>g</sub> phosphorescence of
NC<sub>8</sub>N 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
(C<sub>2</sub>), and these may serve as indispensable building blocks
in the NC<sub>8</sub>N 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.
2015-03-19 00:00:00
NC 8N synthesis
Other chemical species
NC 8N
molecule