Practical Electron Microscopy and Database

An Online Book, Second Edition by Dr. Yougui Liao (2006)

Practical Electron Microscopy and Database - An Online Book

Chapter/Index: Introduction | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Appendix

Pbcn (60) Space Group

Table 3015. Pbcn (60) space group.

Name in the International Tables for Crystallography
Pbcn P
47 mmm
Crystal system
Orthorhombic mmm
Asymm
0≤ x ≤ 1/2 and 0 ≤ y ≤ 1/2 and 0 ≤ z ≤ 1/2
8
Symmetry (atomic coordinates)

X, Y, Z; 1/2-X, 1/2-Y, 1/2+Z; -X, Y, 1/2-Z; 1/2+X, 1/2-Y, -Z; -X, -Y, -Z; 1/2+X, 1/2+Y, 1/2-Z; X, -Y, 1/2+Z; 1/2-X, 1/2+Y, Z

Crystal examples
γ-MgH2
Li2Ge7O15 (Lithium heptagermanate, LGO) ( a = 7.406 Å, b = 16.696 Å, c = 9.610 Å): Paraelectric phase above Tc: