Electron microscopy
-1 Point 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 2985 shows the space group which has point group -1.

Table 2985. All space groups which have point group -1.
Space Group Patterson Space Group Number of Symmetry Operators Crystal System Laue Class Lattice Type
P-1 2 2 Triclinic -1 P

The diffraction pattern from a triclinic crystal with the point group of -1 is centrosymmetric. Such crystals exhibit four pairs of reflections in intensity: Ihkl = I-h-k-l, I-hkl = Ih-k-l, Ih-kl = I-hk-l, and Ihk-l = I-h-kl. These reflection pairs are so-called Friedel pairs.




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.