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The infrared spectra of the methanol (h4,d1ord4)-ammonia (h3ord3) or triethylamine system in the solid state

Authors
Journal
Spectrochimica Acta Part A Molecular Spectroscopy
0584-8539
Publisher
Elsevier
Publication Date
Volume
38
Issue
5
Identifiers
DOI: 10.1016/0584-8539(82)80145-1

Abstract

Abstract The i.r. spectra of methanol—ammonia and methanol—triethylamine systems in the solid state are reported, and the internal modes of CH 3OH · NH 3, CH 3OD · ND 3 and CD 3OD · ND 3 and the OH(D) stretching of (methanol) n · triethylamine ( n = 1 or 2) are assigned. The OH(D) stretching in the former system is lower, about 360 (190) cm −1, than that in the latter one. This abnormal behavior is explained by the hydrogen bond formed among methanol · ammonia species, resulting in the polymeric chain structures. The OH(D) stretching of those systems has some structure, which is explained by Fermi resonance between the fundamental and the first overtone or the combination of the OH(D) in-plane bending.

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