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On the splitting of the symmetric methylene stretch in CH2Br2

✍ Scribed by José Fernández Bertrán

Publisher
Elsevier Science
Year
1985
Tongue
English
Weight
190 KB
Volume
41
Category
Article
ISSN
1386-1425

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✦ Synopsis

High resolution Raman spectra of liquid CH,Br, show Y, as a narrow doublet at 2983-2992 cm-r. Both components are polarized. The splitting of Y, is produced by Fermi resonance. The Fermi coupling coefficient W is 4.6kO.2 cm-'. The doublet is observed in inert solvents but not in deuteroacetone due to band broadening. Assignments of the forbidden level are discussed, the most probable being the quaternary combination wCH, + v,CBr, + Zv,CBr,.

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