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13 C, 17 O and 1 H NMR study of the protonation of acetone in water
Author(s) -
Shen Lianfang,
Du YouRu,
Shao Qianfen,
Mao Shizhen
Publication year - 1987
Publication title -
magnetic resonance in chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0749-1581
DOI - 10.1002/mrc.1260250705
Subject(s) - chemistry , protonation , acetone , monomer , nuclear magnetic resonance spectroscopy , chemical shift , spectroscopy , analytical chemistry (journal) , stereochemistry , organic chemistry , physics , quantum mechanics , polymer , ion
The protonation of acetone in water for a wide range of compositions of the binary mixture was studied by multinuclear NMR spectroscopy. Formation constants ( K 1 and K 2 ) and 13 C, 17 O and 1 H chemical shifts of the 1:1 and 1:2 complexes were evaluated. The correlation of the 1 H chemical shift of uncombined water with its concentration, Δ = A + B In [H 2 O] eq , recently derived for the trimethyl phosphate‐water 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.