- For the use of this term in the context of cyclohexane see axial, equatorial.
- For the use of this term in the context of a bipyramidal structure see apical, basal, equatorial.
Source:
PAC, 1996, 68, 2193. 'Basic terminology of stereochemistry (IUPAC Recommendations 1996)' on page 2208 (https://doi.org/10.1351/pac199668122193)