Hydrogen-bonded complexes of 1-chloro-2-methylpropan-2-ol with ketones
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文摘
The interaction of 1-chloro-2-methylpropan-2-ol (CMP) with acetone and methyl ethyl ketone was examined in dilute carbon tetrachloride solution. The strengths of the hydrogen-bonded complexes were compared with those of the corresponding complexes of trimethyl carbinol and 1,1,1-trichloro-2-methyl-propan-2-ol with ketones. The aim was to explain the inductive effect of the chlorine atom on the strength of carbinol-ketone hydrogen-bonded complexes. The monomer IR band of CPM appears in solution as a composite of five sub-bands, signifying that many conformers are present; this was confirmed by quantum chemical calculations. Chlorine substitution increases the strength of the hydrogen bond.

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