On Friday 17 June 2005 15:14, James Hester wrote: > In a nutshell: > > Both _atom_site_label and _atom_site_aniso_label have the following > lines in their dictionary definitions: > > ... > _category atom_site > _list_mandatory yes > ... > > meaning that they must be included in any list containing items from the > atom_site category. Hi James, In effect they are "_related_function alternate" s for the same definition, as far as I can make out according to http://www.iucr.org/iucr-top/cif/ddl/definitions/Cdata_list_reference.html and http://www.iucr.org/iucr-top/cif/ddl/definitions/Cdata_category.html hope it helps. Doug _______________________________________________ cif-developers mailing list cif-developers@iucr.org http://scripts.iucr.org/mailman/listinfo/cif-developers
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