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Title:Methods Development For Spectral Simplification Of Room-temperature Rotational Spectra
Author(s):Kent, Erin B
Contributor(s):Shipman, Steven
Subject(s):Instrument/Technique Demonstration
Abstract:Room-temperature rotational spectra are dense and difficult to assign, and so we have been working to develop methods to accelerate this process. We have tested two different methods with our waveguide-based spectrometer, which operates from 8.7 to 26.5 GHz. The first method, based on previous work by Medvedev and De Lucia\footnote{I.R. Medvedev, F.C. De Lucia, Astrophys. J. 656, 621-628 (2007).}, was used to estimate lower state energies of transitions by performing relative intensity measurements at a range of temperatures between -20 and +50 $^{\circ}$C. The second method employed hundreds of microwave-microwave double resonance measurements to determine level connectivity between rotational transitions. The relative intensity measurements were not particularly successful in this frequency range (the reasons for this will be discussed), but the information gleaned from the double-resonance measurements can be incorporated into other spectral search algorithms (such as autofit or genetic algorithm approaches) via scoring or penalty functions to help with the spectral assignment process.
Issue Date:2014-06-17
Publisher:International Symposium on Molecular Spectroscopy
Citation Info:Kent, E.B.; Shipman, S. METHODS DEVELOPMENT FOR SPECTRAL SIMPLIFICATION OF ROOM-TEMPERATURE ROTATIONAL SPECTRA. Proceedings of the International Symposium on Molecular Spectroscopy, Urbana, IL, June 16-21, 2014. DOI: 10.15278/isms.2014.TB04
Genre:CONFERENCE PAPER/PRESENTATION
Type:Text
Language:English
URI:http://hdl.handle.net/2142/51003
DOI:10.15278/isms.2014.TB04
Rights Information:Copyright 2014 by the authors. Licensed under a Creative Commons Attribution 4.0 International License. http://creativecommons.org/licenses/by/4.0/
Date Available in IDEALS:2014-09-17
2015-04-14


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