keto-


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keto-

[′kēd·ō]
(organic chemistry)
Organic chemical prefix for the keto or carbonyl group, C:O, as in a ketone.
References in periodicals archive ?
The observed decrease in the energy difference (E) of the isomeric structures (HNQ-isomer-azo and HNQ- isomer) indicates that the N2/H-N1 hydrogen bond participates noticeably in stabilizing the keto- tautomer.
However under the standard conditions the title compounds are pure keto- tautomers which is consistent with the experimental results.
They indicate that the absence of the N2/H-N1 H-bond decreases the stability of the keto- tautomer significantly which confirms that this five-membered H-bond interaction (despite it is being weak) is a critical factor.