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E-Journal of Chemistry
Volume 6, Issue 2, Pages 577-593
http://dx.doi.org/10.1155/2009/981460

Determination of Rotational Parameters of CH3CN, CD3CN and their Different Isotopic Species in the Ground and v4 = 1 States

Masoud Motamedi and Parinaz Moradi

Department of Chemistry, Faculty of Science, University of Kurdistan, Sanandaj, Iran

Received 2 September 2008; Revised 18 October 2008; Accepted 1 November 2008

Copyright © 2009 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The millimeter-wave rotational spectra of the symmetric top molecules CH3CN, 13CH3CN, CH313CN, CH3C15N, CD3CN , 13CD3CN, CD313CN and CD3C15N have been investigated again in their ground and v4 = 1 states. The analysis of spectra and fitting the frequencies in these states give rotational parameters with higher accuracy compare with previous works. The parameter HJ = -0.107(96) mHz was determined for CH3C15N for the first time.