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 Results for DC.creator="A." AND DC.creator="Mighell" in section 9.7.1 of volume C
Relation to structural classes
Wilson, A. J. C., Karen, V. L. and Mighell, A.  International Tables for Crystallography (2006). Vol. C, Section 9.7.1.4, p. 900 [ doi:10.1107/97809553602060000623 ]
... 1977, and papers cited there and below) are not an a priori classification of space groups but are a classification of structures within a space-group type in accordance with the number and ...

Comparison of Kitajgorodskij's and Wilson's classifications
Wilson, A. J. C., Karen, V. L. and Mighell, A.  International Tables for Crystallography (2006). Vol. C, Section 9.7.1.3, pp. 899-900 [ doi:10.1107/97809553602060000623 ]
... both Kitajgorodskij's and Wilson's classifications were made with a view to `explaining' the empirically observed frequencies of space groups ... the `limitingly close packed' and `permissible' are `tending to antimorphism'; a few requiring high molecular symmetry (222, mm2, mmm) and a couple of others are `equally balanced'. Two `fully ...

Symmorphism and antimorphism
Wilson, A. J. C., Karen, V. L. and Mighell, A.  International Tables for Crystallography (2006). Vol. C, Section 9.7.1.2, pp. 897-899 [ doi:10.1107/97809553602060000623 ]
... Wilson (1993d) classified the space groups by degree of symmorphism. A fully symmorphic space group contains only the `syntropic' symmetry elements and a fully antimorphic space group contains only the `antitropic' elements The ... position (in superscript numerals; according to Belsky, Zorkaya & Zorky, 1995) (a) Triclinic, monoclinic and orthorhombic systems. The triclinic space groups ...

Kitajgorodskij's categories
Wilson, A. J. C., Karen, V. L. and Mighell, A.  International Tables for Crystallography (2006). Vol. C, Section 9.7.1.1, p. 897 [ doi:10.1107/97809553602060000623 ]
... orthorhombic space groups in considerable detail, analysing the possibility of (a) forming close-packed layers (six-point contact), and (b) close ... For the layers they are: (1) Coordination close-packed layers. A coordination close-packed layer is one in which molecules of ... be packed with six-point coordination. (2) Closest-packed layers. A closest-packed layer is one in which one can ...

A priori classifications of space groups
Wilson, A. J. C., Karen, V. L. and Mighell, A.  International Tables for Crystallography (2006). Vol. C, Section 9.7.1, pp. 897-900 [ doi:10.1107/97809553602060000623 ]
A priori classifications of space groups 9.7.1. A priori classifications of space groups The space group P21/c ... has no certain example. Why? Ultimately, the space group of a crystal of a particular substance is determined by the ...

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