Benzene's inferno. Part I: A microwave spectroscopic investigation

McCarthy, Michael C.

Permalink

https://hdl.handle.net/2142/104534 Copy

Description

Title

Benzene's inferno. Part I: A microwave spectroscopic investigation

Author(s)

McCarthy, Michael C.

Contributor(s)

Lee, Kelvin

Issue Date

2019-06-20

Keyword(s)

Rotational structure/frequencies

Abstract

Benzene is of central importance in combustion chemistry because formation of the first aromatic ring is the rate-limiting step in polycyclic aromatic hydrocarbon (PAH) growth. For these reasons, the fragmentation and isomerization of benzene are highly topical, as are intermediates formed in route to larger rings. Using a combination of broadband and cavity Fourier-transform microwave spectroscopies and newly developed analysis and assignment tools, the discharge products of benzene have been extensively studied in the 2-19\,GHz frequency range. In addition to rotational transitions from 30 known species, evidence has been found for eight entirely new hydrocarbon molecules; these species include both branched and chain fragments of benzene, high energy isomers, and larger molecules such as phenyldiacetylene and isomers of fulvenallene; together they account for nearly 1/3 of the observed transitions, and about 1/2 of the spectral intensity. Benzene fragmentation and isomerization, as well pathways that may lead to larger aromatic rings will be discussed in the context of the newly discovered molecules.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

eng

Permalink

http://hdl.handle.net/2142/104534

DOI

https://doi.org/10.15278/isms.2019.RI01

Copyright and License Information

Copyright 2019 Michael C. McCarthy

Owning Collections