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Three-Dimensional Representations


Assigning Priorities


Determining Stereochemical Relationships


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Definitions: Achiral


A molecule is achiral if it is superimposable on its mirror image. Most achiral molecules do have a plane of symmetry or a center of symmetry. Achiral molecules that contain a stereocenter are called meso.

The molecules discussed in the previous section are achiral because they possess either a plane of symmetry or a center of symmetry.



Click Next to see these symmetry elements and learn more about them.


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