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Either of a pair of molecules that are mirror images but cannot be superimposed on each other, and that rotate the plane of polarized light by an equal amount in opposite directions. Also called enantiomorph, optical isomer.

[Greek enantios, opposite; see ant- in Indo-European roots + -mer, isomer.]

en·an′ti·o·mer′ic (-mĕr′ĭk) adj.


(Chemistry) chem a molecule that exhibits stereoisomerism because of the presence of one or more chiral centres


(ɪˈnæn ti ə mər)

either of a pair of optical isomers that are mirror images of each other.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.enantiomer - either one of a pair of compounds (crystals or molecules) that are mirror images on each other but are not identical
chemical compound, compound - (chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight
References in periodicals archive ?
Therefore, Ensurf aims to use covalent surface modifications as chiral surface modifiers and new experimental approach for the creation of homochirality and enantioselectivity in self-assembling molecular structures at the solid/liquid interface.
21 % of (R)-amide with eep> 99% and enantioselectivity value (E value) > 200 could be achieved in 1 min under MW irradiation.
2008) A variant of lipolytica lipase with improved activity and enantioselectivity for resolution of 2 bromo arylacactic acid esters.
Bupivacaine produces fatal cardiotoxic and neurotoxic effects following accidental intravascular injection, which is attributed to its R (+) isomer, thus showing enantioselectivity in producing toxicity.
They have broad range of substrate specificity, highly chemo-, region- and enantioselectivity and non-aqueous catalytic activity (1).
The observed high enantioselectivity seems to strongly favor Al-promoted carbozirconation mechanism as opposed to Zr-promoted carboalumination mechanism.
The first chapter discusses the modes of selectivity: chemoselectivity, regioselectivity, stereoselectivity, and enantioselectivity, with examples and comments on synthetic strategy.
Kinetic properties and enantioselectivity of the lipases produced by four Aspergillus wilds species.
Their computational model based on the crystal structure of the enzyme was used to accurately predict the enantioselectivity of 11 substrates; no simulation data was reported for the other 35 substrates.
Differential enantioselectivity and product-dependent activation and inhibition in metabolism of verapamil by human CYP3As.