dc.creator Margulès, L. en_US dc.creator Motiyenko, R. en_US dc.creator Huet, T. R. en_US dc.creator Coudert, L. H. en_US dc.creator Kleiner, I. en_US dc.creator Carvajal, M. en_US dc.creator Mollendal, H. en_US dc.creator Guillemin, J.-C. en_US dc.date.accessioned 2010-07-12T14:11:49Z dc.date.available 2010-07-12T14:11:49Z dc.date.issued 2010 en_US dc.identifier 2010-TJ-11 en_US dc.identifier.uri http://hdl.handle.net/1811/46247 dc.description Author Institution: Laboratoire PhLAM, CNRS UMR 8523, Universite; de Lille 1, 59655 Villeneuve d'Ascq Cedex, France; LISA, CNRS UMR 7583, Universite Paris 7 and Paris 12, 94010; Creteil Cedex France; Departamento de Fisica Aplicada, Universidad de Huelva, Spain; Centre for Theoretical and Computational Chemistry; (CTCC), University of Oslo, P. O. Box 1033, Blindern; NO-0315 Oslo, Norway; Sciences Chimiques de Rennes-Ecole Nationale; Superieure de Chimie de Rennes-CNRS, 35700 Rennes, France en_US dc.description.abstract Complex organic molecules are relatively heavy, their maximum absorption is in the millimetric domain at about~300 GHz. But the most abondant, like methyl formate, could be detected in the ISM up to 900~GHz.~{\bf 156} (2005) 127.} We will present here the last results obtained about the two $^{18}$O and the doubly-deuterated species of methyl formate. This concludes the systematic investigation up to 660~GHzfor the mono-substituted isotopic species with either $^{13}$C, $^{18}$O, or D, which began in 2006. The lines from these isotopic species will certainly be present in the spectra which will be recorded in the next years with the very sensitive telescope ALMA, HERSHEL and SOFIA. The detection of isotopic species is very important for the astrophysical community to improve the interstellar chemical modeling and to understand the formation mechanism of these complex organic molecules. Our interest was also on the theoretical aspects. Like other complex organic molecules, methyl formate displays a large amplitude motion. Here it is the rotation of the methyl group with respect to the rest of the molecule. Theoretical models were developed to reproduce accurately the observed frequencies for large quantum numbers values as $J$-values as high as 70 could be reached. Similarly the investigation of the doubly-deuterated HCOOCHD$_2$ was undertaken to test the model developed for mono-deuterated HCOOCH$_2$D.~{\bf 254} (2009) 55.} {\em This work is supported by ANR-08-BLAN-0054 and ANR-08-BLAN-0225.} en_US dc.language.iso en en_US dc.publisher Ohio State University en_US dc.title COMPREHENSIVE SUBMILLIMETER WAVE STUDIES OF THE ISOTOPIC SPECIES OF A MAJOR WEED: METHYL FORMATE en_US dc.type Article en_US
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