✦ LIBER ✦

For study of 2,6-lutidine hydrogen bonding with iso-butyl and tert-butyl alcohols

✍ Scribed by Stanislaw Warycha; Iwona Wawer

Publisher: Elsevier Science
Year: 1979
Weight: 280 KB
Volume: 14
Category: Article
ISSN: 0378-4487
DOI: 10.1016/0378-4487(79)80043-6

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✦ Synopsis

The downfield shift and broadening of the isobutanol OH group signal with increasing 2,6-lutidine concentration was observed and explained by N...RO interaction. In the case of tertbutyl alcohol on increasing the 2,6-lutidine concentration the signal of the OH group shifted upfield without broadening (an effect of breaking of alcohol-alcohol hydrogen bonds). In three component systems, with a nonpolar solvent, where alcohol-alcohol interactions were eliminated (xa = 0.002) and with excess 2,6-lutidine both alcohols interacted with 2,6-lutidine and so, and tertbutyl alcohols on parameters were obtained: respectively. from the dependence of the OH group signal of isobutyl concentration and temperature the thermodynamic AH (4,6 and 3.4 kcal* mole-'), AS (14.0 and 12.4 e.u.

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