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International
Tables for Crystallography Volume G Definition and exchange of crystallographic data Edited by J. R. Hester and B. McMahon © International Union of Crystallography 2026 |
International Tables for Crystallography (2026). Vol. G. Early view chapter
https://doi.org/10.1107/97809553602060001011 Chapter 4.2 Core dictionary (coreCIF) |
Core dictionary version 3.3.0
_chemical.enantioexcess_crystal
Name:_chemical.enantioexcess_crystal
Alias:
_chemical_enantioexcess_crystal
Definition:
The enantioexcess of the crystal used for the diffraction
study. A value of 0.0 indicates the racemate. A value of
1.0 indicates that the crystal is enantiomerically pure.
Enantioexcess is defined in the IUPAC Recommendations
(Moss et al., 1996).
Reference: Moss G. P. et al. (1996). Basic Terminology of Stereochemistry.
Pure Appl. Chem., 68, 2193-2222.
https://doi.org/10.1351/pac199668122193
https://iupac.qmul.ac.uk/stereo/
Type: Real
Units: none
The permitted range is 0.0 → 1.0
Category:
chemical
