Crystallographic Information Framework

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Index

Modulated and composite structures dictionary (msCIF) version 1.0.1

Category CELL_WAVE_VECTORS

Name:
'_cell_wave_vectors_[ms]'

Definition:

   Data items in the CELL_WAVE_VECTORS category record details
   about the set of independent modulation wave vectors q~i~ and
   their measurement. The diffraction vectors are indexed in
   the form ha*+kb*+lc*+sum~i~ (m~i~q~i~). sum~i~ is taken
   over all wave vectors. In this version of the dictionary, the
   index i has been restricted to be less than 9.

Example:

Example 1 - example corresponding to the one-dimensional incommensurately modulated structure of K~2~SeO~4~. 
 
     _cell_wave_vectors_meas_details          'Determined from profiles along q'


Type: null

Category: category_overview


International Tables for Crystallography

Volume G: Definition and exchange of crystallographic data

First online edition (2006)

Edited by S. R. Hall and B. McMahon

An essential guide and reference to CIF for programmers, data managers handling crystal-structure information and practising crystallographers.