Welcome to the
International Union of Crystallography

The IUCr is an International Scientific Union. Its objectives are to promote international cooperation in crystallography and to contribute to all aspects of crystallography, to promote international publication of crystallographic research, to facilitate standardization of methods, units, nomenclatures and symbols, and to form a focus for the relations of crystallography to other sciences. Read more »


  • 2023 IUCr Crystal growing competition – deadline extended

    Unfortunately, we have experienced technical difficulties with the submission system for the 2023 IUCr Crystal growing competition for schoolchildren. We are therefore asking all participants who think their entry/entries may not have been received to resubmit here. The deadline has been extended to 15 December.

  • IUCr seeks Marketing Executive

    We are seeking a dynamic and creative Marketing Executive to join our team at the IUCr. This role is integral to promoting our organization's initiatives, fostering relationships within the global scientific community. The ideal candidate will have a passion for science, excellent marketing and communication skills and the ability to work in an international context. The position has scope for career development and progression. Please see here for more information.

  • Distinguished Lectures on Quantum Crystallography and Complementary Fields

    Anna Krawczuk (Georg-August University, Göttingen, Germany) and Krzysztof Szalewicz (University of Delaware, Newark, DE, USA) will present the next two lectures in this online series on Thursday 14 December 2023 at 16:00 CET. Please see here for more information.

The best in crystallographic research

Uniquely among International Scientific Unions, the IUCr publishes its own primary research journals. Acta Crystallographica Sections A–F, IUCrJ, Journal of Applied CrystallographyJournal of Synchrotron Radiation and IUCrData communicate the highest quality peer-reviewed research findings across the many scientific areas to which crystallography is relevant.

[Melbourne 2023 logo]

26th IUCr Congress

Melbourne, Australia
22-29 August 2023

Regional Associate meetings
Denver, CO, USA
7-12 July 2024

[AsCA logo]
Selangor, Malaysia
1-6 Dec 2024

[ECA logo]
Padova, Italy
26-31 August 2024

Montevideo, Uruguay
23-26 September 2024

IUCr Corporate Associates

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