Fm3m Space Group

• Fm3m Space Group Names
• C222 Space Group

The space group of hexagonal H 2O ice is P6 3/ mmc. The first m indicates the mirror plane perpendicular to the c-axis (a), the second m indicates the mirror planes parallel to the c-axis (b), and the c indicates the glide planes (b) and (c). The black boxes outline the unit cell. In, and, a space group is the of a configuration in space, usually in. In three dimensions, there are 219 distinct types, or 230 if copies are considered distinct.

Fm3m Space Group Names

Space groups are also studied in dimensions other than 3 where they are sometimes called groups, and are discrete of isometries of an oriented Euclidean space. In, space groups are also called the crystallographic or groups, and represent a description of the of the crystal. A definitive source regarding 3-dimensional space groups is the International Tables for Crystallography.

C222 Space Group

Models for the cubic phase of space group Pm3n (a) Fontell [61] (b) Charvolin and Sadoc [65]. The structure proposed by Charvolin and Sadoc ( Fig. 15b ) is analogue to that present in foams, namely, one consisting of a unit cell that contains a dodecahedron and a tetrakaidecahedron.