Journal Articles Journal of Applied Crystallography Year : 2021

Symmetry and chirality in crystals

Abstract

A classification scheme relating the chirality of molecules to the type of crystal structures (chiral or achiral) they may form is presented. With respect to similar classifications proposed in the past, some corrections and extensions are introduced. In particular, (1) it is shown that chiral crystal structures from achiral molecules can occur in 28 types of space group having screw axes np, with p <> n/2, not in any Sohncke type of space group; (2) it is shown that the restriction on Z' > 1 for kryptoracemates is contradicted by examples with Z' = 1; and (3) the case of scalemic enantioenriched solutions, absent from most classifications, is included. Chiral crystal structures from purely inorganic (nonmolecular) compounds are addressed too
Fichier principal
Vignette du fichier
JAC_Chirality.pdf (229.41 Ko) Télécharger le fichier
Origin Publisher files allowed on an open archive

Dates and versions

hal-03462076 , version 1 (01-12-2021)

Identifiers

Cite

Massimo Nespolo, Amani Hind Benahsene. Symmetry and chirality in crystals. Journal of Applied Crystallography, 2021, 54, pp.1594 - 1599. ⟨10.1107/s1600576721009109⟩. ⟨hal-03462076⟩
55 View
1400 Download

Altmetric

Share

More