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Modulated and composite structures dictionary (msCIF) version 1.0.1




   Modulation parameters are usually looped in separate lists.
   Modulated parameters are the atom positions (displacive
   modulation), the atomic occupation (occupational modulation)
   and/or the atomic anisotropic (or isotropic) displacement
   parameters (referred to as modulation of thermal parameters,
   since the term 'displacement parameters' is ambiguous in this
   context). _atom_site_U_Fourier_atom_site_label is the code that
   identifies an atom in a loop in which the Fourier components of
   its thermal-parameters modulation are listed.  This code must
   match the _atom_site_label of the associated coordinate list
   and conform to the rules described in _atom_site_label.

Appears in list containing _atom_site_U_Fourier_id

Must match data name_atom_site_label

Type: char

Category: atom_site_U_Fourier