We now have unlimited campus access to Cambridge Structural Database (CSD), a repository for small-molecule organic and metal-organic crystal structure. It contains over 500,000 X-ray and neutron diffraction analyses. It provides 3-D structures with respective coverage of the published literature. The structural data is curated and enriched with bibliographic, chemical and physical property information. More than 40,000 new structures are added to the database each year.
For more information, use this research guide: http://guides.lib.umich.edu/csd