Figure 5.1.3.3

Arnold, H.

doi:10.1107/97809553602060000510

International
Tables for
Crystallography
Volume A
Space-group symmetry
Edited by Th. Hahn

pdf | chapter contents | chapter index | related articles

International Tables for Crystallography (2006). Vol. A. ch. 5.1, p. 83

Figure 5.1.3.3

H. Arnold^a ^‡

^a Institut für Kristallographie, Rheinisch-Westfälische Technische Hochschule, Aachen, Germany

Figure 5.1.3.3

Body-centred cell I with a, b, c and a corresponding primitive cell P with a′, b′, c′. Origin for both cells O. A cubic I cell with lattice constant $[a_{c}]$ can be considered as a primitive rhombohedral cell with $[a_{r} = a_{c} {1 \over 2} \surd{3}]$ and $[\alpha = 109.47^{\circ}]$ (rhombohedral axes) or a triple hexagonal cell with $[a_{h} = a_{c} \surd{2}]$ and $[c_{h} = a_{c} {1 \over 2} \surd{3}]$ (hexagonal axes).