Neutron scattering studies of methyl der
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Ireneusz Natkaniec; Krystyna Holderna-Natkaniec; Jurgen Kalus
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Article
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2004
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Elsevier Science
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English
β 390 KB
Vibrational spectra of toluene, m-and p-xylenes and mesitylene, measured by inelastic incoherent neutron scattering at 20 K, are compared. Internal barriers for methyl rotation in free molecules of these compounds are quite low. External barriers caused by crystal packing significantly increase the