Electron microscopy
 
Pbcm (57) Space Group
- Practical Electron Microscopy and Database -
- An Online Book -
Microanalysis | EM Book                                                                                   http://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 1888. Pbcm (57) space group.

Name in the International Tables for Crystallography
Pbcm P
47 mmm
Crystal system
Orthorhombic mmm
Asymm
0 ≤ x ≤ 1/2 and 0 ≤ y ≤ 1 and 0 ≤ z ≤1/4
8 Crystal symmetry Is centrosymmetric because it has -x,-y,-z in its symmetry.
Symmetry (atomic coordinates)
X, Y, Z; -X, -Y, 1/2+Z; -X, 1/2+Y, 1/2-Z; X, 1/2-Y, -Z; -X, -Y, -Z; X, Y, 1/2-Z; X, 1/2-Y, 1/2+Z; -X, 1/2+Y, Z
Crystal examples
β-PbO.
Er(HPO4)(NO3)·3 H2O: a = 10.1653 Å, b = 11.9178 Å, c = 6.8533 Å, V = 830.26, Z = 4.

 

 

 

=================================================================================
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.