Small-molecule structural studies may be performed on a dual wavelength Bruker AXS Duo (Mo & Cu) diffractometer or a D8 Venture diffractometer equipped with imuS Diamond, a high-brilliance Cu-source. Typical turn-around times under average conditions, from start of data-collection to completely refined small-molecule structure, may range from a few hours to a few days. Macromolecular studies are perfomed on a D8 Venture diffractometer. The XCL requests that papers with small-molecule structures obtained after 2011 at this laboratory to acknowledge NSF CRIF grant 1048367, PI: K.H. Theopold, “Acquisition of a Single-Crystal X-ray Diffractometer.” In addition to papers with macromolecular data or involved preliminary screenings prior to beamline submission, papers with small-molecule structures obtained after 2020 should also acknowledge NIH grant S10 OD026896A, PI: B. J. Bahnson, "Macromolecular X-ray Crystallographic Data Collection System” since the Photon detector upgrade for the Duo is part of the funded negotiated diffractometer purchase agreement for the D8 Venture macromolecular diffractometer.