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Updated November 2009 : 1.062.771 entries in the PCOD
The largest collection of CIFs in the world
(see the "What is New" page)
PCOD contains (see the complete list) inorganic compounds (silicates, phosphates, sulfates of Al, Ti, V, Ga, Nb, Zr, zeolites, fluorides, etc) predicted - or enumerated - mainly by ZEFSA II (898.707 SiO2 entries) or by GRINSP (163.520 entries), or by other programs.
Derived product :
The P2D2 (Predicted Powder Diffraction Database) contains all powder patterns calculated from the PCOD, assembled in a system allowing for search-match (by EVA from Bruker).
All data on this site have been placed in the public domain by the contributors
Have also a look at the COD containing really observed crystal structures.