The Conventional Bravais Unit Cell from Diffractometer Data*
نویسندگان
چکیده
With the use of modern single-crystal diffractometers for structure determination, the preliminary photographic study of the diffraction pattern is much abbreviated or even eliminated entirely. The dangers inherent in this omission can be reduced by systematic checking of the automatic features of diffractometer operation, and this requires a full understanding of the methods. This paper (a) describes how possible unit cell axes are found from 15-25 accurately centered reflections, in more detail than is easily available elsewhere; (b) provides a step-by-step procedure for deriving the reduced cell; and (c) indicates how International Tables for X-Ray Crystallography can be used to deduce the conventional Bravais cell from the reduced cell.
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تاریخ انتشار 2018