University of Illinois Urbana-Champaign

Chirped-pulse microwave spectra of 4-fluorophenol, 1-bromo-2-fluorobenzene, and 1-bromo-3-fluorobenzene

Buchmaier, Wolfgang

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https://hdl.handle.net/2142/107318

Description

Title
Chirped-pulse microwave spectra of 4-fluorophenol, 1-bromo-2-fluorobenzene, and 1-bromo-3-fluorobenzene
Author(s)
Buchmaier, Wolfgang
Contributor(s)
  • Brown, Gordon G.
  • Rodman, Kaitlyn
  • Pedapolu, Theophilus
  • Ortiz, Patricio
  • Muzzy, Breckin
  • Lindsay, Aubrey Grace
  • Lesoine, Christopher
Issue Date
2020-06-24
Keyword(s)
Mini-symposium: Spectroscopy with Undergraduates
Abstract
The microwave spectra of three unique chemicals have been measured and assigned for the first time. The spectra of 4-fluorophenol, 1-bromo-2-fluorobenzene, and 1-bromo-3-fluorobenzene were measured with a chirped-pulse Fourier transform microwave (CP-FTMW) spectrometer in the 8 – 18 GHz range. The spectrometer employs an Analog Devices AD-9914 direct digital synthesizer to generate a chirped pulse with a bandwidth of 1 GHz. The chirped pulse is mixed with a tunable carrier frequency and the spectrum is measured in 2 GHz (the output of the mixer includes the lower and upper sidebands) sections. Chemical samples are introduced through a small hole in a spherical mirror in order for the pulsed molecular beam to be coaxial with the microwave pulse. Experimental rotational parameters of the three chemical species will be presented along with a description of the spectrometer.
Publisher
International Symposium on Molecular Spectroscopy
Type of Resource
Text
Language
eng
Permalink
http://hdl.handle.net/2142/107318
Copyright and License Information
Copyright 2020 is held by the Author(s)

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Abstracts & Presentations - 2020 International Symposium on Molecular Spectroscopy PRIMARY