"Reaction Dynamics Of Propargyl + <span Class=""roman"">nh</span>_{<span Class=""roman"">2</span>} Probed Using Chirped Pulse Rotational Spectroscopy In A Pulsed Quasi-uniform Flow (cpuf)"

Gurusinghe, Ranil

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https://hdl.handle.net/2142/111274 Copy

Description

Title

"Reaction Dynamics Of Propargyl + nh₂ Probed Using Chirped Pulse Rotational Spectroscopy In A Pulsed Quasi-uniform Flow (cpuf)"

Author(s)

Gurusinghe, Ranil

Contributor(s)

• Suits, Arthur
• Mebel, Alexander M
• Dias, Nureshan

Issue Date

2021-06-23

Keyword(s)

Dynamics and kinetics

Abstract

Reaction dynamics of the radical-radical reaction between the resonantly-stabilized propargyl radical with \chem{NH_2} and \chem{ND_2} were investigated using chirped-pulse rotational spectroscopy in a pulsed quasi-uniform flow. Propargyl, \chem{NH_2}, and \chem{ND_2} radicals were produced by UV photodissociation of a mixture of propargyl bromide and ammonia in a low-temperature, helium Laval flow. The reaction products, \chem{HCN}, \chem{HNC}, \chem{HC_3N}, \chem{DCN}, \chem{DNC}, and \chem{DC_3N}, were simultaneously identified using their vibrational ground state rotational spectra in the 70 – 92 GHz region and product branching ratios were calculated. A theoretical analysis using RRKM calculations on an ab initio potential surface revealed diverse and complex reaction pathways and mechanisms that lead to the observed reaction products.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

Text

Language

eng

Permalink

http://hdl.handle.net/2142/111274

DOI

10.15278/isms.2021.WC12

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