Chapter 4.2 Powder dictionary (pdCIF)

Definition and exchange of crystallographic data

First Online Edition (2006)

Part 4. Data dictionaries

  1. B. H. Toby

Published Online: 1 JAN 2006

DOI: 10.1107/97809553602060000742

International Tables for Crystallography

International Tables for Crystallography

How to Cite

Toby, B. H. 2006. Powder dictionary (pdCIF). International Tables for Crystallography. G:4:4.2:258–269.

Author Information

  1. NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899-8562, USA

Publication History

  1. Published Online: 1 JAN 2006


This is version 1.0.1 of the powder CIF dictionary (pdCIF). A commentary on the use of this dictionary, which also discusses the organization of powder data sets, especially for studies of multiphase samples and for studies referring to external calibration standards, may be found in Chapter 3.3. The data names defined here complement those in the core CIF dictionary (Chapter 4.1) and should be used to describe the results of powder diffraction studies.


  • crystallography;
  • CIF;
  • CIF dictionaries;
  • Crystallographic Information File;
  • pdCIF;
  • powder Crystallographic Information File;
  • data names;
  • data categories;
  • DDL1