“…Atom connectivity, relative and absolute stereochemistry, and packing information can be determined in a single experiment more definitively than through other common techniques such as NMR, IR, or GC-MS. Thanks to the widespread availability of modern technology and software, currently even chemistry students and postdoctoral researchers who are not trained in the details of diffraction physics are able to routinely perform small-molecule single-crystal X-ray structure analysis. − Despite its complicated underlying theory and instrument acquisition costs, X-ray crystallography can be incorporated into an undergraduate curriculum via varied approaches, − including national laboratory visits and Internet-facilitated remote data collection. , As an alternative to dedicated X-ray crystallography courses designed for upper-level undergraduate and graduate students, ,, this paper describes a 3 h crystallography laboratory module for implementation in undergraduate experimental chemistry courses, including inorganic, organic, and physical chemistry, as well as for outreach programs such as interinstitutional visits . The module provides an opportunity for course instructors who are not familiar with crystallography, or for colleges that lack access to single-crystal X-ray diffractometers, to integrate X-ray crystallography into their undergraduate curriculum with a half-day trip.…”