C2 (5) space group

C2 (5) Space Group
- Practical Electron Microscopy and Database -
- An Online Book -

Microanalysis | EM Book https://www.globalsino.com/EM/

This book (Practical Electron Microscopy and Database) is a reference for TEM and SEM students, operators, engineers, technicians, managers, and researchers.

=================================================================================

Table 1673. C2 (5) space group.

Name in the International Tables for Crystallography	C2	Lattice type	C
Patterson space group	12	Point group	2
Crystal system	Monoclinic	Laue class	2/m
Asymm	0 ≤ x ≤ 1/2 and 0 ≤ y ≤ 1/2 and 0 ≤ z ≤ 1
Number of symmetry operators	4	Absence of reflections
Translation
Symmetry (atomic coordinates)	X, Y, Z; -X, Y, -Z; 1/2+X, 1/2+Y, Z; 1/2-X, 1/2+Y, -Z
Forbidden reflections	The three space groups C2/m, C2 and Cm have the same systematic forbidden reflections which are caused by the C-centering (h+k = 2n+1). The other symmetry operations in the three space groups, e.g. 2-fold rotation axis (2) and mirror plane (m) in the C2/m space group, do not cause forbidden reflections.
Crystal examples

=================================================================================

The book author (Yougui Liao) welcomes your comments, suggestions, and corrections, please click here for submission. If you let book author know once you have cited this book, the brief information of your publication will appear on the “Times Cited” page.