​​The Cambridge Crystallographic Data Centre (CCDC).
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How do I find out more about Z' (number of molecules per asymmetric unit) in the CSD?


You can search on Z' using ConQuest and you can also combine this type of search with other query types using the Combine Queries functionality in ConQuest to investigate trends in Z' for different subsets of the CSD.

If you are particularly interested in Z' and statistics concerning structures which crystallise with more than one molecule in the asymmetric unit, please see the following useful (non-CCDC) web resource: