Zonal reflection conditions
From Online Dictionary of Crystallography
Revision as of 07:26, 5 May 2006 by AndreAuthier
Conditions de réflexion zonales (Fr).
The zonal reflection conditions are the general reflection conditions due to the presence of glide planes. The resulting conditions apply only to twodimensional sets of reflections, i.e. to reciprocal-lattice nets containing the origin (such as hk0, h0l, 0kl, hhl). For instance, for a glide plane parallel to (001):
|type of reflection||reflection condition||glide vector||glide plane|
|0kl||k = 2 n||b/2||b|
|l = 2 n||c/2||c|
|k + l = 2 n||b/2 + c/2||n|
|k + l = 4 n|
k, l = 2n
|b/4 ± c/4||d|
The zonal reflection conditions are listed in Table 18.104.22.168 of International Tables of Crystallography, Volume A.
Section 2.2.13 of International Tables of Crystallography, Volume A