Vibrational study of hydrogen bonds and structure of tris(hydroxymethyl)aminomethane

✍ Scribed by Isao Kanesaka; Kuniko Mizuguchi

• Publisher: John Wiley and Sons
• Year: 1998
• Tongue: English
• Weight: 227 KB
• Volume: 29
• Category: Article
• ISSN: 0377-0486
• DOI: 10.1002/(sici)1097-4555(199809)29:9<813::aid-jrs307>3.0.co;2-f

✦ Synopsis

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 Ðrst order was found at 190 K in THAM, which is ascribed to ordering of CÈO 1 (H) groups, which form weak hydrogen bonds.