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Modulated Structures CIF Dictionary version 1.0

_atom_sites_rot_Fourier_axes_description

Name

'_atom_sites_rot_Fourier_axes_description'

Category: atom_sites_rot_Fourier

Data type: char

Example:

;              a1 and a2 are respectively the long molecular axis
               and the axis normal to the mean molecular plane.
;

Definition

    	
   The definition of the axes used for describing the rotational
   part of the displacive modulation of a given rigid group,
   parameterized by Fourier series, when they are other than the
   crystallographic axes.

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