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History Over 75 years of advancing structural science

Milestones in IUCr history

The Early History

Aspects of the history of the International Union of Crystallography

60 years of IUCr journals

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Fifty Years of X-Ray Diffraction

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Adhering bodies

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Worldwide Protein Data Bank (wwPDB)

Other bodies not belonging to the Union

Committee on Data of the International Council for Science

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International Organization for Standards

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Commissions Commissions make up the heart of the Union

Commission guidelines

Commission contact table

Commission on Aperiodic Crystals

Commission on Biological Macromolecules

Commission on Crystal Growth and Characterization of Materials

Commission on Crystallographic Computing

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Commission on Crystallographic Teaching

Commission on Crystallography in Art and Cultural Heritage

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Commission on Diffraction Microstructure Imaging

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Commission on High Pressure

Commission on Inorganic and Mineral Structures

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Commission on Magnetic Structures

Commission on Mathematical and Theoretical Crystallography

Commission on XAFS

Commission on NMR Crystallography and Related Methods

Commission on Neutron Scattering

Commission on Powder Diffraction

Commission on Quantum Crystallography

Commission on Small-Angle Scattering

Commission on Structural Chemistry

Commission on Synchrotron and XFEL Radiation

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CommDat

Public discussion forum

Crystallographic Information Fiesta

Workshop on Data Science Skills in Publishing: for authors, editors and referees

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Workshop on MX raw image data formats, metadata and validation

Workshop report

Workshop on Raw diffraction data reuse: the good, the bad and the challenging

Workshop on When should small molecule crystallographers publish raw diffraction data?

DDDWG

Public discussion forum

Workshop at ECM-27, Bergen: August 6 2012

COMCIFS Symposium at ECM-28, Warwick: August 25 2013

Workshop at ECM-29, Rovinj: August 22-23 2015

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A font for crystallographic symmetry elements

Bragg Lecture 2001

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Introduction to the crystal class models

Introductory note

Make some close-packed rhombic dodecahedra

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The Power of Powder Diffraction

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The evolution of synchrotron radiation and the growth of its importance in crystallography

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Events
Events Archive

Events Archive

Conferences

COSPAR 2026. 46th Scientific Assembly of the Committee on Space Research (COSPAR) and Associated Events

Italy

1 Aug 2026

Florence
Symposia

2026 VAI Structural Biology Symposium

United States

31 Jul 2026

Grand Rapids
Conferences

GRC. Biomineralization: Bio-Crystallization and Bio-Assembly Across Scales

Italy

26 Jul 2026

Barga, Lucca
Schools

Transmission Electron Microscopy of Nanomaterials - European Summer School (TEM-UCA)

Spain

13 Jul 2026

Puerto Real (CÃ¡diz)
Conferences

12th Pharmacology of G Protein-Coupled Receptors & Molecular Pharmacology of GPCRs (MPGPCR) Joint Satellite Meeting

Australia

9 Jul 2026

Melbourne
IUCr sponsored meetings Schools

4th High-Pressure Single-Crystal X-Ray Diffraction Summer School

United Kingdom

6 Jul 2026

Edinburgh
IUCr supported meeting Schools Training courses

Zurich School of crystallography

Switzerland

29 Jun 2026

University of Zurich, Switzerland
IUCr sponsored meetings Schools

11th European Crystallography School (ECS11)

Sweden

28 Jun 2026

Stockholm
IUCr sponsored meetings Schools

11th European Crystallography School (ECS11)

Sweden

28 Jun 2026

Stockholm
Conferences

APERIODIC 2027. 12th International Conference On Aperiodic Crystals

Poland

27 Jun 2026

Krakow
Conferences

APERIODIC 2027

Poland

23 Jun 2026

Krakow
IUCr supported meeting Conferences

19th European Powder Diffraction Conference

Switzerland

23 Jun 2026

Crans Montana
Conferences

19th International Conference on X-ray Absorption Fine Structure (XAFS2026)

Thailand

21 Jun 2026

Chiang Mai
Conferences

GRC. Crystal Engineering: Design, Assembly, and Function

United States

21 Jun 2026

Newry, Maine
Seminars

GRS. Crystal Engineering: Strategies to Enable Design, Discovery and Application of Crystals

United States

20 Jun 2026

Newry, Maine

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International Union of Crystallography

Scientific Union Member of the International Science Council (admitted 1947). Member of CODATA, the ISC Committee on Data. Partner with UNESCO, the United Nations Educational, Scientific and Cultural Organization in the International Year of Crystallography 2014.

International Science Council Scientific Freedom Policy

The IUCr observes the basic policy of non-discrimination and affirms the right and freedom of scientists to associate in international scientific activity without regard to such factors as ethnic origin, religion, citizenship, language, political stance, gender, sex or age, in accordance with the Statutes of the International Council for Science.

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