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 »


  • Basic sciences at the heart of sustainable development

    IUCr President, Hanna Dabkowska, is one of several leaders of international scientific unions and organisations featured on the International Year of Basic Sciences for Sustainable Development 2022/2023 (IYBSSD2022) website. In her video interview, Hanna explains how crystallography and the IUCr are helping to achieve the 17 Sustainable Development Goals. Read more here.

  • André Authier (1932–2023)

    We mourn the loss of former IUCr President André Authier, Professor Emeritus at Pierre and Marie Curie (now Sorbonne) University, Paris, France, who died recently at the age of 90. Professor Authier served the IUCr for 45 years (since 1969) as Chair of various Commissions, on the IUCr Executive Committee [1984–1996 (President 1990–1993)], as Section Editor of Acta Cryst. A (1993–2011) and as Editor of International Tables Volume D: Physical properties of crystals. Read more here.

  • Robert Fayzullin awarded 2023 Struchkov Prize

    Many congratulations to Robert R. Fayzullin (Laboratory of Diffraction Research Methods, Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Kazan, Russia), who has won the 2023 Struchkov Prize for his work on real-space interpretation of chemical bonding by combining one-electron potentials and associated force fields derived from high-resolution X-ray diffraction data. Read more here.

  • 2023 W. H. and W. L. Bragg Prize awarded to Arkadiy Simonov

    Very well deserved, the 2023 W. H. and W. L. Bragg Prize for outstanding early-career crystallographers has been awarded to Arkadiy Simonov (ETH Zürich, Switzerland) for his development of the three-dimensional difference pair distribution function approach and its transformative effect on the field of materials. Read more here.

  • Wayne A. Hendrickson wins 13th Ewald Prize

    We send hearty congratulations to Wayne A. Hendrickson (Columbia University, NY, USA), winner of the 13th Ewald Prize for his exceptional contribution to structural biology including the development of MAD/SAD methods and crystallographic theory. Professor Hendrickson will deliver the Ewald Prize Lecture during the Opening Ceremony of the 26th IUCr Congress on 22 August 2023. Read more here

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
Baltimore, MD, USA
7-12 July 2023

(tentative schedule)
[AsCA logo]
Jeju, Republic of Korea
30 Oct-2 Nov 2022

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

San José, Costa Rica
28-30 Nov 2022

IUCr Corporate Associates

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