Provides complete structural characterization services using X-rays in solution, colloids, liquid crystals and solids. The facility performs a wide variety of X-ray diffraction experiments on WAXS, SAXS and two CCD instruments, and maintains structural database systems providing electronic search, retrieval, analysis and graphics for inorganic, organic and macromolecular structures. The professional staff offers instruction on small molecule and macromolecular crystal growth, design of X-ray experiments and strategies for data collection. Trained users have access to the single crystal diffractometers by appointment.