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The laboratory millimeter-wave spectrum of methyl formate in its ground torsional E state

Plummer, Grant M. and Herbst, Eric and De Lucia, Frank C. and Blake, Geoffrey A. (1986) The laboratory millimeter-wave spectrum of methyl formate in its ground torsional E state. Astrophysical Journal Supplement Series, 60 (4). pp. 949-961. ISSN 0067-0049. http://resolver.caltech.edu/CaltechAUTHORS:20120919-144730981

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Abstract

Over 250 rotational transitions of the internal rotor methyl formate (HCOOCH_3) in its ground v_t = 0 degenerate (E) torsional substate have been measured in the millimeter-wave spectral region. These data and a number of E-state lines identified by several other workers have been analyzed using an extension of the classical principal-axis method in the high barrier limit. The resulting rotational constants allow accurate prediction of the v_t = 0 E substate methyl formate spectrum below 300 GHz between states with angular momentum J ≤ 30 and rotational energy E_(rot)≤ 350cm^(-1). The calculated transition frequencies for the E state, when combined with the results of the previous analysis of the ground-symmetric, nondegenerate state, account for over 200 of the emission lines observed toward Orion in a recent survey of the 215-265 GHz band.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1086/191107DOIUNSPECIFIED
http://adsabs.harvard.edu/abs/1986ApJS...60..949PPublisherUNSPECIFIED
Additional Information:© 1986 American Astronomical Society. Provided by the NASA Astrophysics Data System. We acknowledge the support of the National Aeronautics and Space Administration via grant NAGW-189.
Funders:
Funding AgencyGrant Number
NASANAGW-189
Record Number:CaltechAUTHORS:20120919-144730981
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20120919-144730981
Official Citation:The laboratory millimeter-wave spectrum of methyl formate in its ground torsional E state Plummer, G. M.; Herbst, E.; De Lucia, F. C.; Blake, G. A. Astrophysical Journal Supplement Series (ISSN 0067-0049), vol. 60, April 1986, p. 949-961.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:34222
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:19 Sep 2012 23:50
Last Modified:26 Dec 2012 16:13

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