Leonid, good point! Molodetz! Pozdravliaiu! Have you refined in R-3c? Nicolae Popa
> Regarding the query of Leopoldo Suescun: > âShouldn´t the IUCr take action and try to influence the journals that > frequently publish x-ray data (as a complementary characterization > technique but that determines the validity of other results) to have > well-trained crystallographers review any article that contains x-ray > diffraction data?â > > Unfortunately, the issue of crystallographic review is problematic even in > the IUCr journals, especially for powder data. A fresh instance from Acta > B: > http://dx.doi.org/10.1107/S205252061500342X > where the crystal structures of alpha-Fe2O3 and alpha-Cr2O3 are > âre-refinedâ to be monoclinic. The monoclinic symmetry is > âsubstantiatedâ by the observation of a âcomplexâ peak broadening > that, in fact, is well described by the anisotropic strain model available > in all popular Rietveld programs. > With such structure validation, all crystal structures may be re-refined, > potentially, to lower symmetry, as the anisotropic strain broadening is a > common powder pattern feature. > If this practice is accepted in an IUCr journal, what can we expect from > non-crystallographic literature? > > ******************************************************* > Leonid A. Solovyov > Institute of Chemistry and Chemical Technology > 660036, Akademgorodok 50/24, Krasnoyarsk, Russia > http://sites.google.com/site/solovyovleonid > ******************************************************* >
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