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2001 (1)
1Author    C. Thomsen, H. DreizlerRequires cookie*
 Title    The Microwave Spectra of m-Xylene and m-Xylene-d10. Determination of the Low Methyl Internal Rotation Barrier  
 Abstract    The rotational spectra of m-xylene, (CHahCöH^ and of m-xylene-dio, (CDs^CöD,*, have been recorded between 6 and 26.5 GHz using pulsed beam Fourier transform microwave spectroscopy. The clue for the assignment of the internal rotation multiplets was the inertial defect derived from the ^4i^4i species transitions. The rotational constants for m-xylene and m-xylene-dio are A = 3572.1117(1) MHz / 2896.1195(17) MHz, B = 1761.8621(1) MHz / 1446.0236(15) MHz, C =1197.3943(2) MHz / 988.2357(7) MHz, the barrier to internal rotation of the two methyl groups are V3 = 53.7(16) J/mol / 39.8(5) J/mol, their moments of inertia were assumed to be Ia = 3.14 uA2 / 6.28 uA2. 
  Reference    Z. Naturforsch. 56a, 635—640 (2001); received August 29 2001 
  Published    2001 
  Keywords    Rotational Spectra, Low Methyl Internal Rotation Barriers, Two Top Molecules, Molecular Beam Fourier Transform Microwave Spectroscopy 
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 TEI-XML for    default:Reihe_A/56/ZNA-2001-56a-0635.pdf 
 Identifier    ZNA-2001-56a-0635 
 Volume    56