University of Illinois Urbana-Champaign

Selective Production Of Hcn Monomer And Evidence For Gas-phase Dimerization

Howard, Thomas

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RJ04_1.pptx
6139.pdf

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https://hdl.handle.net/2142/116628

Description

Title
Selective Production Of Hcn Monomer And Evidence For Gas-phase Dimerization
Author(s)
Howard, Thomas
Contributor(s)
  • Dodson, Leah G.
  • Palko, Jessica
  • Kisuryna, Darya
  • Hockey, Emily K.
Issue Date
2022-06-23
Keyword(s)
Instrument/Technique Demonstration
Abstract
Hydrogen cyanide (HCN) is a molecule of importance in astrochemistry. To prepare for experiments to study its reactivity, we selectively produced a molecular beam of monomeric HCN using a cryogenic buffer-gas source. The HCN beam was first interrogated by condensing it on a 10K substrate using argon as a bath gas to create an inert matrix. Based on a comparison of the resulting infrared spectrum with experiments that use conventional effusive sources, HCN polymers can be nearly eliminated from the matrix using a cryogenic buffer-gas beam source. Our experiments suggest that HCN undergoes polymerization in the gas phase and may exist, to some extent, as a dimer under ambient conditions. We will discuss further investigations using continuous-wave cavity ringdown spectroscopy to examine the first vibrational overtone of the alkynyl C-H stretch of HCN monomer and dimer in the near infrared.
Publisher
International Symposium on Molecular Spectroscopy
Type of Resource
text
Genre of Resource
Conference Paper / Presentation
Language
eng
Handle URL
https://hdl.handle.net/2142/116628
DOI
https://doi.org/10.15278/isms.2022.RJ04
Copyright and License Information
Copyright 2022 held by the authors

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Abstracts & Presentations - 2022 International Symposium on Molecular Spectroscopy PRIMARY