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Absolute configuration
The arrangement of atoms about a stereocenter, denoted in an unambiguous way.
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Achiral
An object thatis superimposable on (identical to) its mirror image.
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Cahn-Ingold-Prelog
Convention used to assign priorities to substituent groups. Used for designating (R)/(S) configurations.
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Chiral
An object that is not superimposable on its mirror image.
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Diastereomer
Stereoisomers that are not enantiomers.
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Enantiomer
Stereoisomers that are non-superimposable mirror images.
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Meso
A compound that contains multiple stereocenters but is achiral due to an internal plane of symmetry.
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Stereocenter
Short for stereogenic center. A component of a molecule that gives rise to stereoisomerism. Often a carbon atom attached to four distinct groups.
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Stereochemistry
The spatial arrangement of atoms in molecules, and the study of how chiral molecules behave in chemical environments.
