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Vibrational study of hydrogen bonds and structure of tris(hydroxymethyl)aminomethane
Author(s) -
Kanesaka Isao,
Mizuguchi Kuniko
Publication year - 1998
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/(sici)1097-4555(199809)29:9<813::aid-jrs307>3.0.co;2-f
Subject(s) - hydroxymethyl , chemistry , hydrogen bond , tris , fermi resonance , raman spectroscopy , crystallography , deuterium , hydrogen , molecule , stereochemistry , organic chemistry , atomic physics , biochemistry , physics , optics
The vibrational spectra of tris(hydroxymethyl)aminomethane (THAM) were observed at various temperatures and the polarized Raman spectra at room temperature. The three types of O–H stretch indicate that the structure of THAM consists of a chain rather than a layer structure. Some structures found in the strong hydrogen bond at 1920 cm ‐1 in deuterated THAM are attributed to the Fermi resonance. One of C–O(H) torsions was found at 1055 cm ‐1 and some new assignments are proposed for the C–O stretches, the C–C stretch and C–O(H) torsions. Structural change of the first order was found at 190 K in THAM, which is ascribed to ordering of C—O 1 (H) groups, which form weak hydrogen bonds. © 1998 John Wiley & Sons, Ltd.