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X-Ray Crystallography Core Laboratory (XCL)

What We Do

The Department of Chemistry X-ray Crystallography Core Laboratory at UNC Chapel Hill (XCL) primarily functions as a service crystallographic laboratory for the University and actively collaborates with Departments of Chemistry (Inorganic, Organic, and Materials Science Division), Physics and Astronomy, UNC Eshelman School of Pharmacy and UNC School of Medicine.  The XCL provides service within and outside of the university including local and regional research institutions and industry. The XCL houses three single Crystal X-ray diffractometer, Bruker D8 VENTURE, Bruker Kappa Apex II, and Bruker SMART Apex II, which are fully maintained by the XCL Director. Service includes SC-XRD structure determination and user training for both SC- and powder XRD techniques. Additional experiments at Argonne National Laboratory, SCrAPS – Synchrotron Crystallography at Advanced Photon Source, are carried out three times a year for samples that diffract too weakly using the conventional radiation source at the facility.

XCL provides both client- and user-based services where clients enjoy the convenience of the service, and users gain privilege and flexibility in instrument operation, data collection, and structure solution and refinement with or without the assistance of the XCL personnel. To become a proficient user, requirements such as passing the X-ray Crystallography course as well as instrument-specific and safety training and exams need to be fulfilled.

Location and hours of operation

Hours Location

Monday - Friday     

9AM - 6PM 

Room 053, Caudill Laboratories – Office

Room 042, Caudill Laboratories – Lab

Links and Resources



Name Role Phone Email Location
Chun-Hsing (Josh) Chen, Ph.D.
Caudill Laboratories Rm. 053