_atom_site_displace_Fourier.axis

Name:
_atom_site_displace_Fourier.axis

Alias:
_atom_site_displace_Fourier_axis

Definition:

   

      A label identifying the displacement component of a given atom
      or rigid group that is being parameterized by Fourier series. a,
      b and c are the basic lattice vectors of the reference structure.
      For composites they refer to the reference structure of each
      subsystem. a~1~, a~2~ and a~3~ are defined by the
      items belonging to the ATOM_SITES_AXES category, through 
      _atom_site_displace_Fourier.matrix_seq_id.
      Use of _atom_sites_displace_Fourier.axes_description is deprecated 
      and retained only for backward compatibility.

Type: Code

The data value must be one of the following:

`x`	displacement along the a axis

`y`	displacement along the b axis

`z`	displacement along the c axis

`a1`	displacement along an arbitrary a1 axis

`a2`	displacement along an arbitrary a2 axis

`a3`	displacement along an arbitrary a3 axis

Category:
atom_site_displace_Fourier

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Crystallographic Information Framework

Modulated structures dictionary (msCIF) version 3.2.1

_atom_site_displace_Fourier.axis

International Tables for Crystallography

Volume G: Definition and exchange of crystallographic data

Edited by S. R. Hall and B. McMahon

IUCrData