Rotational dynamics of methyl groups in m-xylene

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Rotational dynamics of methyl groups in m-xylene.

Methyl group dynamics of m-xylene was investigated by using incoherent inelastic and quasi-elastic neutron scattering. Inelastic measurements were carried out at the high flux backscattering spectrometer HFBS at the National Institute of Standards, quasi-elastic measurements at the time-of-flight spectrometer NEAT at the Hahn-Meitner-Institute. Rotational potentials are derived which describe t...

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The Microwave Spectra of m-Xylene and m-Xylene-d10. Determination of the Low Methyl Internal Rotation Barrier

The rotational spectra of m-xylene, (CH3)2C6H4, and of m-xylene-d10, (CD3)2C6D4, 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 A1A1 species transitions. The rotational constants for m-xylene and m-xylene-d10 are A = 3572.1117(1) MHz / 2...

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ژورنال

عنوان ژورنال: The Journal of Chemical Physics

سال: 2005

ISSN: 0021-9606,1089-7690

DOI: 10.1063/1.1829037