# What is C2 space group?

## What is C2 space group?

The space group C2/c can be considered as a combination of a C-centred lattice with space group P2/c (or alternatively space group P21/n). This approach can be extended to the other 3 rotation axes of the primitive space group, yielding a total of 4 screw axes per unit cell in the C-centred space group.

**What is space group in group theory?**

In mathematics, physics and chemistry, a space group is the symmetry group of a configuration in space, usually in three dimensions. In crystallography, space groups are also called the crystallographic or Fedorov groups, and represent a description of the symmetry of the crystal.

**What are the space groups in crystallography called?**

In crystallography, space groups are also called the crystallographic or Fedorov groups, and represent a description of the symmetry of the crystal. A definitive source regarding 3-dimensional space groups is the International Tables for Crystallography (Hahn (2002)).

### What are the names of the space groups?

Monoclinic crystal system Number Point group Orbifold Short name Full name (s) 3 2 22 {displaystyle 22} P2 P 1 2 1 4 2 22 {displaystyle 22} P2 1 P 1 2 1 1 11 2/m 2 ∗ {displaystyle 2*} P2 1 /m P 1 2 1 /m 1 12 2/m 2 ∗ {displaystyle 2*} C2/m C 1 2/m 1

**How are space groups studied in other dimensions?**

Space groups are also studied in dimensions other than 3 where they are sometimes called Bieberbach groups, and are discrete cocompact groups of isometries of an oriented Euclidean space . In crystallography, space groups are also called the crystallographic or Fedorov groups, and represent a description of the symmetry of the crystal.

**Which is the most accurate space group diagram?**

P 2 1 2 1 2 1 20. C 2 2 2 1 21. C 2 2 2 22. F 2 2 2 23. I 2 2 2 24. I 2 1 2 1 2 1 25. P m m 2