Core dictionary (coreCIF) version 2.3.1
_atom_site_calc_flag
Name:'_atom_site_calc_flag'
Definition:
A standard code to signal whether the site coordinates have been determined from the intensities or calculated from the geometry of surrounding sites, or have been assigned dummy coordinates. The abbreviation 'c' may be used in place of 'calc'.
Appears in list containing _atom_site_label
The data value must be one of the following:
d | determined from diffraction measurements |
calc | calculated from molecular geometry |
c | abbreviation for "calc" |
dum | dummy site with meaningless coordinates |
Enumeration default: d
Type: char
Category: atom_site