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Axial Chirality definition
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Term used to refer to stereoisomerism resulting from the non-planar arrangement of four groups in pairs about a chirality axis. It is exemplified by allenes abC=C=Ccd (or abC=C=Cab) and by the atropisomerism of ortho-substituted biphenyls.

The configuration in molecular entities possessing axial chirality is specified by the stereodescriptors Ra and Sa (or by P or M).

See also:
Atomic Mass (Atomic Mass Average) definition
Axial Chirality definition
Background Radiation definition
background definition
autoprotolysis constant definition
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