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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

Previous Executive Committees

Fifty Years of X-Ray Diffraction

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Adhering bodies

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Scientific associates

International Centre for Diffraction Data (ICDD)

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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

ISC Committee on Space Research

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International Council for Scientific and Technical Information

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

Commission on Crystallographic Nomenclature

Commission on Crystallographic Teaching

Commission on Crystallography in Art and Cultural Heritage

Commission on Crystallography of Materials

Commission on Diffraction Microstructure Imaging

Commission on Electron Crystallography

Commission on High Pressure

Commission on Inorganic and Mineral Structures

Commission on International Tables

Commission on Journals

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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Organic materials for organic structure solution from powder diffraction data

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CommDat

Public discussion forum

Crystallographic Information Fiesta

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

Workshop report

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

Crystal growing

Introduction to the crystal class models

Introductory note

Make some close-packed rhombic dodecahedra

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The Power of Powder Diffraction

The analytic theory of point systems

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

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Events
Events Archive

Events Archive

Workshops

Electron Crystallography Workshop

Italy

11 May 2026

Venice
Symposia

Stanford Electron Microscopy-X

United States

4 May 2026

Onine via Zoom
Workshops

CryoSPARC workshop

Canada

30 Apr 2026

Toronto
Seminars

Structural basis for the pharmacological modulation of KCa2.2 channels

30 Apr 2026

Online via Zoom
Workshops

OLEX2 A2Z

Croatia

27 Apr 2026

Dubrovnik
IUCr sponsored meetings Workshops

CCP4 Central European Workshop 2026

Czech Republic

26 Apr 2026

NovÃ© Hrady, South Bohemia
Workshops

Objective Analysis of Systematic Errors in Single-Crystal Diffraction Data

23 Apr 2026

Online
Symposia

Karen M. Davies Memorial Symposium

United Kingdom

22 Apr 2026

Nottingham
Conferences Symposia

12th CCP-EM Spring Symposium & BCI Meeting

United Kingdom

22 Apr 2026

Nottingham and via Zoom
Workshops

Objective Analysis of Systematic Errors in Single-Crystal Diffraction Data

16 Apr 2026

Virtual
Training courses

EMBO Practical Course on ?In-situ structural biology by Cryo-FIB and Cryo-ET

Germany

15 Apr 2026

Frankfurt am Main
IUCr supported meeting Schools

Powder Diffraction and Rietveld Refinement School 2026

United Kingdom

12 Apr 2026

Durham
Training courses

EMBO Practical Course on ?In-situ structural biology by Cryo-FIB and Cryo-ET

Germany

12 Apr 2026

Frankfurt am Main
Training courses

Instruct course on flexibility analysis using Scipion

Spain

6 Apr 2026

Madrid, WI
Conferences

Biophysics in Africa - 2026

23 Mar 2026

Zoom Conference

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Accelerators

Aperiodic crystallography

Applied crystallography

Art and history

Biological macromolecules

Characterisation of materials

Charge, spin and momentum densities

Chemical crystallography

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Crystal engineering

Crystal growth

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Diffraction microstructure imaging

Electron crystallography

Free-electron laser

General

High pressure

Industrial crystallography

Inelastic X-ray scattering

Magnetism

Materials

Mathematical and Theoretical Crystallography

Metals and metallurgy

Microscopy

Mineralogy

Nanomaterials

Neutron scattering

NMR crystallography

Open Lab

Polymorphism

Powder diffraction

Quantum crystallography

Radiation damage

Radiation physics

Small-angle scattering

Solid-state chemistry

Solid-state physics

Structural chemistry

Surface studies

Synchrotron radiation

Topography

X-ray fluorescence

X-ray optics and imaging

X-ray spectroscopy

XAFS studies

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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.

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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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