The determination of absolute structure. I. Some experiences with the Rogers η refinement

Abstract

The η refinement of Rogers [Acta Cryst. (1981), A37, 734-741] has been applied to a wide range of noncentrosymmetric structures containing medium to strong anomalous scatterers; it has been shown to be an effective and robust method. The use of the general term 'absolute structure' (to signify a structure successfully distinguished from its inverse by, for example, analysis of anomalous scattering effects) is recommended.