Core dictionary (coreCIF) version 2.3.1

_cell_reciprocal_angle_

Names:
'_cell_reciprocal_angle_alpha' '_cell_reciprocal_angle_beta' '_cell_reciprocal_angle_gamma'

Definition:

   The angles defining the reciprocal cell in degrees. These
   are related to those in the real cell by:

   cos(recip-alpha)
       = [cos(beta)*cos(gamma) - cos(alpha)]/[sin(beta)*sin(gamma)]

   cos(recip-beta)
       = [cos(gamma)*cos(alpha) - cos(beta)]/[sin(gamma)*sin(alpha)]

   cos(recip-gamma)
       = [cos(alpha)*cos(beta) - cos(gamma)]/[sin(alpha)*sin(beta)]

   Ref: Buerger, M. J. (1942). X-ray Crystallography, p. 360.
           New York: John Wiley & Sons Inc.

The permitted range is 0.0 -> 180.0
Enumeration default: 90.0

Type: numb

Category: cell








































to end of page
to top of page