The uv spectroscopy of jet-cooled 3-phenyl-2-propynenitrile

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https://hdl.handle.net/2142/91274

Title: The uv spectroscopy of jet-cooled 3-phenyl-2-propynenitrile
Author(s): Jawad, Khadija M.
Contributor(s): Zwier, Timothy S.
Issue Date: 2016-06-21
Keyword(s): Spectroscopy in Atmospheric Chemistry
Abstract: The atmosphere of Saturn’s moon Titan is replete with hydrocarbons and nitriles, but knowledge of the formation and sink processes as well as the identities of molecules on the large end of photochemical models of the atmosphere is very limited. 3-phenyl-2-propynenitrile (Ph-C$\equiv$C-C$\equiv$N) is of potential importance in this atmosphere because it is a likely product of photochemical reaction between cyanoacetylene and benzene, bringing together two of the key functional groups in Titan’s atmosphere in a single molecule. We present the UV spectrum of this molecule in the gas phase, under jet-cooled conditions, using 2-color resonant two-photon ionization. The spectrum was recorded from 292-208nm, taking advantage of the wide tunability of a BBO-based OPO as the excitation source. On its long wavelength end, the spectrum has sharp transitions arising from a $\Pi$$\Pi$ transition characteristic of a phenyl derivative, while deeper into the UV the spectrum is broadened in a manner reminiscent of cyanoacteylene.
Publisher: International Symposium on Molecular Spectroscopy
Type of Resource: text
Language: En
Permalink: http://hdl.handle.net/2142/91274