chirality element

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The part of a molecule that makes it exist in left- and right-handed forms. In most cases this is a chirality centre (i.e. an asymmetric atom). In certain cases the element is a chirality axis. For example, in allenenes of the type R1R2C=C=CR3R4 the C=C=C chain is a chirality axis. Certain ring compounds may display chirality as a result of a chirality plane in the molecule.

Subjects: Chemistry.

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