Crystallographic Information Framework

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Index

Macromolecular dictionary (mmCIF) version 2.0.09

Category DIFFRN_STANDARD_REFLN

Name:
'diffrn_standard_refln'

Description:

   Data items in the DIFFRN_STANDARD_REFLN category record details
   about the reflections treated as standards during the measurement
   of a set of diffraction intensities.

   Note that these are the individual standard reflections, not the
   results of the analysis of the standard reflections.

Example:

Example 2 - based on data set TOZ of Willis, Beckwith & Tozer [Acta Cryst. (1991), C47, 2276-2277]. 
 
    loop_
    _diffrn_standard_refln.diffrn_id
    _diffrn_standard_refln.code
    _diffrn_standard_refln.index_h
    _diffrn_standard_refln.index_k
    _diffrn_standard_refln.index_l
     s1 1  3  2  4
     s1 1  1  9  1
     s1 1  3  0 10


Category groups:
    inclusive_group
    diffrn_group
Category keys:
    _diffrn_standard_refln.diffrn_id
    _diffrn_standard_refln.code

Mandatory category: no


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.