Inorganic Crystal Structure Database (ICSD) This link opens in a new windowThe ICSD provides access to inorganic crystal structure data appearing in the literature from 1913 on. Additional structures are added by expert evaluation or computer analysis. The database is updated twice yearly. For inclusion, structures must be fully characterized, atomic coordinates determined and the composition fully specified. Users searching for organic or organometallic crystal data should use the Cambridge Structural Database, the CSD. The ICSD is produced cooperatively by the Fachinformationszentrum Karlsruhe (FIZ) and the National Institute of Standards and Technology (NIST),