Abstract
FOR the determination of the configuration, including handedness (that is, the absolute configuration), of non-centrosymmetrical crystals, use must be made of anomalous scattering1. In one set of applications the intensity difference between hkl and \(\overline{hkl}\) reflexions is employed only in a qualitative way for a few reflexions, the structure except for handedness being known2. In others, methods have been devised for a fully direct Fourier synthesis, utilizing the anomalous effect of all reflexions in a qualitative3 or quantitative4 way. It was realized that applications of anomalous diffraction were not limited to crystals containing atoms with absorption edges very close to the frequency of the X-rays used3.
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DE VRIES, A. Determination of the Absolute Configuration of α-Quartz. Nature 181, 1193 (1958). https://doi.org/10.1038/1811193a0
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DOI: https://doi.org/10.1038/1811193a0
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