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

Howard, Thomas

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

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

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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