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Comment on Enantiomorphism and multiple-beam X-ray diffraction by Roberto Colella (1994) (1995)

Burzlaff, H. ; Lange, J. ; Zimmermann, H.

[S.l.] : International Union of Crystallography (IUCr)

Acta crystallographica 51 (1995), S. 91-92

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ISSN: 1600-5724

Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001

Topics: Chemistry and Pharmacology , Geosciences , Physics

Notes: For the transition of the structure factors of benzil (B) to benzil (A), Colella [Acta Cryst. (1994), A50, 55–57] employs the relation TeXi.e., in matrix notation, TeX This relation is wrong since det (A) = 1. It is not a mapping onto an enantiomorph; for the change of handedness, det (A) must be −1. Moreover, matrix A is an element of the related point group 321. Thus, the result is symmetrically equivalent to the starting set of structure factors. As a consequence, all arguments presented on the basis of (1) are invalid.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1107/S0108767394008731

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