The H centered cell (triple hexagonal cell) is an alternative description of the hexagonal Bravais
H1: 110/-120/001 H2: 2-10/110/001 H3: 1-20/2-10/001
The resulting hH cell has
Secondary and tertiary elements in the hP cell are exchanged in the hH cell. For example , the space-group symbol P3m1 become H31m when the triple cell is used.
- Section 22.214.171.124 in the International Tables for Crystallography, Volume A
- Chapter 5 in the International Tables for Crystallography, Volume A