Scientific FAQs
 How do I obtain enCIFer?
enCIFer is freely available for download to the scientific community for bona fide research purposes.
How do I obtain further information relating to CIF data items?
Valid CIF data names and the permitted data value type(s) for each name are expressed in a computer-readable dictionary,
where the dictionary syntax is defined in a separate Dictionary Definition Language (DDL).
enCIFer is able to load dictionaries which conform to the DLL1.4.1 format (referred to as DDL1) including the small molecule core dictionary and the powder diffraction dictionary. The current DDL1 dictionaries available from the IUCr are included in the enCIFer distribution with the permission of the IUCr, who hold the copyright. EnCIFer supports neither DDL2 nor the proposed DDLm, CIF files or dictionaries, e.g. the macromolecular CIF dictionary mmCIF.
The latest small-molecule core and other DDL1 dictionaries and details of the DDL can be found on the IUCr
website: http://www.iucr.org.
Can I customise enCIFer to check for the presence of specific data items, required by a particular journal publisher or crystallographic database?
Yes, enCIFer can be used to check CIFs against a configurable mandatory data items file. Two files, recommended.cif and mandatory_rsc.cif, are provided with the enCIFer distribution. recommended.cif contains a list of data items which are commonly required by journals which publish the results of crystal structure determinations, and for deposition at the CCDC. Some additional mandatory data items files are provided which are already tailored to the requirements of particular journal publishers e.g. mandatory_rsc.cif. All of these files may be customised to suit specific requirements.
For further information please refer to section 6.7 of the enCIFer user guide.
I do not understand what is meant by a particular error message so how do I resolve the problem?
A more detailed explanation of the error messages reported by enCIFer with typical causes is provided in section
6.9, 6.10 and 6.11 of the enCIFer user guide. Alternatively, right-clicking
on the relevant error, warning or remark in the Error list view in enCIFer will take you to the appropriate section in
the documentation.
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