Crystallography Open Database

The Crystallography Open Database (COD) is a database of crystal structures.^[1] Unlike similar crystallographic databases, the database is entirely open-access, with registered users able to contribute published and unpublished structures of small molecules and small to medium-sized unit cell crystals to the database. As of November 2024, the database has more than 520,000 entries.^[2] The database has various contributors, and contains Crystallographic Information Files as defined by the International Union of Crystallography (IUCr). There are currently five sites worldwide that mirror this database. The 3D structures of compounds can be converted to input files for 3D printers.^[3]

Crystallography Open Database (COD)

Content
Description	Crystal structures and platform for world-wide collaboration
Contact
Research center	Vilnius University
Authors	Saulius Gražulis
Primary citation	Gražulis & al. (2012)[1]
Release date	2003
Access
Data format	Crystallographic Information File (.cif)
Website	http://www.crystallography.net
Public SQL access	http://wiki.crystallography.net/howtoquerycod/

See also

• Crystallography
• Crystallographic database