Crystallographic Information Framework

[CIF logo]

Index

Macromolecular dictionary (mmCIF) version 2.0.09

Category DIFFRN_STANDARDS

Name:
'diffrn_standards'

Description:

   Data items in the DIFFRN_STANDARDS category record details
   about the set of standard reflections used to monitor intensity
   stability during the measurement of diffraction intensities.

   Note that these records describe properties common to the set of
   standard reflections, not the standard reflections themselves.

Example:

Example 1 - based on data set TOZ of Willis, Beckwith & Tozer [Acta Cryst. (1991), C47, 2276-2277]. 
 
    _diffrn_standards.diffrn_id         's1'
    _diffrn_standards.number            3
    _diffrn_standards.interval_time     120
    _diffrn_standards.decay_%           0


Category groups:
    inclusive_group
    diffrn_group
Category key:
    _diffrn_standards.diffrn_id

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.