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Core dictionary version 3.0.14
_chemical.absolute_configuration
Name:_chemical.absolute_configuration
Alias:
_chemical_absolute_configuration
Definition:
Necessary conditions for this assignment are given by
Flack, H. D. & Bernardinelli, G. (1999). Acta Cryst. A55,
908-915. (http://www.iucr.org/paper?sh0129)
Flack, H. D. & Bernardinelli, G. (2000). J. Appl. Cryst.
33, 1143-1148. (http://www.iucr.org/paper?ks0021)
Type: Text
The data value must be one of the following:
|
rm | 'reference molecule' Absolute configuration established by the structure determination of a compound containing a chiral reference molecule of known absolute configuration. |
|
ad | 'anomalous dispersion' Absolute configuration established by a-d effects in diffraction measurements on the crystal. |
|
rmad | 'rm + ad' Absolute configuration established by the structure determination of a compound containing a chiral reference molecule of known absolute configuration and confirmed by a-d effects in diffraction measurements on the crystal. |
|
syn | 'synthetic' Absolute configuration has not been established by anomalous-dispersion effects in diffraction measurements on the crystal. The enantiomer has been assigned by reference to an unchanging chiral centre in the synthetic procedure. |
|
unk | 'unknown' No firm chemical or a-d evidence for an assignment is available. An arbitrary choice of enantiomer has been made. |
|
. | inapplicable |
Category:
chemical