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13C, 17O and 1H NMR study of the protonation of acetone in water

✍ Scribed by Lian-fang Shen; You-Ru Du; Qian-fen Shao; Shi-zhen Mao

Publisher
John Wiley and Sons
Year
1987
Tongue
English
Weight
339 KB
Volume
25
Category
Article
ISSN
0749-1581

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✦ Synopsis

The protonation of acetone in water for a wide range of compositions of the binary mixture was studied by multinuclear NMR spectroscopy. Formation constants (Ill and K2) and 13C, "0 and 'H chemical shifts of the 1: 1 and 1:2 complexes were evaluated. The correlation of the 'H chemical shift of uncombined water with its concentration, 6,"~" = A + B In [H20b,, recently derived for the trimethyl phosphatewater system, was verified. A measure of the fraction of monomer species existing in the uncombined water at each composition was obtained. The results are discussed with respect to the structure of water.

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