INTERNATIONAL TABLES

for CRYSTALLOGRAPHY

Volume G

Definition and Exchange of Crystallographic Data

CIF Dictionary Register

COMCIFS maintains a register of known dictionaries, including the identifying name and version strings within those dictionaries. The register also includes the location of each dictionary, expressed as a URL designed to allow retrieval by file transfer protocol (ftp) from the IUCr server. Dictionary applications can consult the register to locate and retrieve the dictionaries needed for validating data files.