On behalf of the International Union of Crystallography (IUCr), it is with immense excitement and joy that we cordially extend our warmest invitation to you to join the IUCr for the Twenty-Seventh Congress and General Assembly, set to be held in the magnificent city of Calgary, located in the heart of Alberta, Canada from August 11th-18th, 2026.

Calgary, a city renowned for its breathtaking natural beauty and warm hospitality, has been chosen as the host for this remarkable occasion. Nestled amidst stunning landscapes and boasting a rich cultural heritage, this vibrant metropolis promises to provide an unforgettable experience for all attendees.

2025 Pittsburgh Diffraction Conference (PDC)

Hosted by Brookhaven National Laboratory
October 9–12, 2025

On behalf of the Conference Committee, we are delighted to invite you to 82nd annual Pittsburgh Diffraction Conference (PDC). This year’s conference will be held October 9–12, 2025 at Brookhaven National Laboratory, on New York’s beautiful Long Island.
 

The Pittsburgh Diffraction Conference is one of the longest-running scientific meetings in North America focused on the advancement of structural science through diffraction-based methods. Bridging both life sciences and materials sciences, the conference brings together researchers who utilize laboratory-based instruments, X-ray light sources, electron diffraction, and neutron scattering to explore the structure and dynamics of matter. It serves as a vibrant forum for sharing recent scientific breakthroughs, fostering interdisciplinary collaborations, and highlighting innovations across experimental and computational frontiers

This year’s program features a diverse and timely selection of breakout sessions, reflecting key areas of growth in the field. Topics include energy storage, emphasizing structural insights that enable next-generation energy technologies; AI and its applications in the development of emergent materials; novel materials with transformative properties; and the effects of extreme environments on structures, reveling details on dynamic processes and molecular motion that lead to biomolecular functions and a better understanding of complex soft materials.

Conference Web Page and Registration:  

https://www.bnl.gov/pittsburgh-diffraction-conference/index.php 

Important dates:

April 21, 2025               General registration opens
July 31, 2025                Deadline to submit an abstract for an oral/poster presentation
September 19, 2025      General registration closes

Pre-event workshops:

PDF 101: A Hands on Tutorial to Total Scattering Methods (organizers: Milinda Abeykoon, Daniel Olds)

Hands-on Workshop: Crystal Clear Insights: Mastering Protein Crystallization (organizers: Crissy Traver, Vivian Stojanoff)

Evening Events:

Brookhaven National Lab facility tour.
Friday, October 10, 2025
https://www.bnl.gov/pittsburgh-diffraction-conference/nsls2tour.php

Banquet Dinner
Danfords Hotel and Marina
25 E Broadway, Port Jefferson, NY 11777
Date: Friday, October 10, 2025, 7-9 p.m.

 

Awards Dinner
Charles B. Wang Center
100 Nicolls Road, Stony Brook, NY 11794
Date: Saturday, October 11, 2025, 7-9 p.m.

2025 Pittsburgh Diffraction Conference (PDC)

Hosted by Brookhaven National Laboratory
October 9â€"12, 2025

On behalf of the Conference Committee, we are delighted to invite you to 82nd annual Pittsburgh Diffraction Conference (PDC). This year’s conference will be held October 9â€"12, 2025 at Brookhaven National Laboratory, on New York’s beautiful Long Island.

The Pittsburgh Diffraction Conference is one of the longest-running scientific meetings in North America focused on the advancement of structural science through diffraction-based methods. Bridging both life sciences and materials sciences, the conference brings together researchers who utilize laboratory-based instruments, X-ray light sources, electron diffraction, and neutron scattering to explore the structure and dynamics of matter. It serves as a vibrant forum for sharing recent scientific breakthroughs, fostering interdisciplinary collaborations, and highlighting innovations across experimental and computational frontiers

This year’s program features a diverse and timely selection of breakout sessions, reflecting key areas of growth in the field. Topics include energy storage, emphasizing structural insights that enable next-generation energy technologies; AI and its applications in the development of emergent materials; novel materials with transformative properties; and the effects of extreme environments on structures, reveling details on dynamic processes and molecular motion that lead to biomolecular functions and a better understanding of complex soft materials.

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Conference Web Page and Registration:Â Â

https://www.bnl.gov/pittsburgh-diffraction-conference/index.phpÂ

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Important dates:

April 21, 2025Â Â Â Â Â Â Â Â General registration opens
July 31, 2025Â Â Â Â Â Â Â Â Deadline to submit an abstract for an oral/poster presentation
September 19, 2025Â Â Â General registration closes

Pre-event workshops:

PDF 101: A Hands on Tutorial to Total Scattering Methods (organizers: Milinda Abeykoon, Daniel Olds)

Hands-on Workshop: Crystal Clear Insights: Mastering Protein Crystallization (organizers: Crissy Traver, Vivian Stojanoff)

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Evening Events:

Brookhaven National Lab facility tour.
Friday, October 10, 2025
https://www.bnl.gov/pittsburgh-diffraction-conference/nsls2tour.php

Banquet Dinner
Danfords Hotel and Marina
25 E Broadway, Port Jefferson, NY 11777
Date: Friday, October 10, 2025, 7-9 p.m.

Awards Dinner
Charles B. Wang Center
100 Nicolls Road, Stony Brook, NY 11794
Date: Saturday, October 11, 2025, 7-9 p.m.

• Theoretical and experimental studies of electronic structure and dynamics
• Spectroscopy techniques (e.g. photoelectron spectroscopy, X-ray absorption/emission spectroscopy, electron energy loss spectroscopy)
• Spectromicroscopy (e.g. PEEM, STM, nanoARPES)
• Applications in various fields ranging from correlation physics and materials science to AMO science, chemistry and biology

At 4 pm CET.

Lecture 49: The Role of Quantum Crystallography in the Understanding of the Role of Weak Intermolecular Interactions involving Organic Fluorine given Deepak Chopra (Indian Institute of Science Education and Research Bhopal, India).

Lecture 50. Photomechanical molecular crystals as actuators and motors given by Christopher J. Bardeen (Department of Chemistry, University of California, Riverside, USA).

The lectures are free and open to everyone; these particular lectures are expected to last ca 35min + up to 15min for Q&A.

At 4 pm CET

Lecture 47: Quantum Crystallography for Macromolecular Systems: applications and recent developments given by Benoit Guillot (Université de Lorraine, CNRS, Nancy, France)

Lecture 48: Optimal Clustering for Quantum-Based Refinement of Biomacromolecules given by Malgorzata Biczysko (University of Wrocław, Poland), Holger Kruse (Pending AI Pty Ltd., Australia), Nigel W. Moriarty(LBNL, Berkeley, USA), Mark P. Waller (Pending AI Pty Ltd., Australia) and Pavel V. Afonine (LBNL, Berkeley, USA)

 At the XXV Congress and General Assembly of the International Union of Crystallography in Prague, it was decided that the 35th edition of the European Crystallographic Meeting would be held in Lviv, Ukraine, in 2025.

 Unfortunately, there is a war in Ukraine, and it is not reasonable to organize a great scientific event in Lviv in 2025. An alternative was thus elaborated where, thanks to a collaboration between the Ukrainian Crystallographic Committee and the Polish Crystallographic Association, the conference site will be Poznan, a city in neighbouring Poland.

At 4pm CET

Lecture 42: "Chemical Applications of X-ray Quantum Crystallography" by Sajesh Thomas (Department of Chemistry, Indian Institute of Technology, New Delhi, India)

Lecture 43: "Rational Design of Complex Electromechanical Phenomena in Molecular Crystals" by Sarah Guerin (Bernal Institute & Department of Chemical Sciences University of Limerick, Ireland)

At 4 pm CET

Lecture 42: "Chemical Applications of X-ray Quantum Crystallography" by Sajesh Thomas (Department of Chemistry, Indian Institute of Technology, New Delhi, India)

Lecture 43:"Rational Design of Complex Electromechanical Phenomena in Molecular Crystals" by Sarah Guerin (Bernal Institute & Department of Chemical Sciences University of Limerick, Ireland)

Sagamore is a prestigious conference that has been held triennially since 1964 under the auspices of the IUCr Commission on Quantum Crystallography (formerly the Charge, Spin, and Momentum Densities).

The Sagamore conferences have traditionally concerned interchange between researchers interested in property densities or distributions of materials such as the electron distribution, spin distribution, nuclear particle distribution, and electrostatic potential studied by the most accurate theoretical methods, and using the most advanced experimental techniques. There has been a focus on diffraction and scattering methods, and reconciling differences between the different methodologies.

The field has undergone rapid change in the last decade, with the term “Quantum Crystallography” being used to emphasize wave function based modelling methods. At the same time, both the quantity and precision of data have also increased due to advances in detector technology. There is a race to make the data from these methods available to general chemists, and to reveal new physical and chemical insights that may be exploited.

For the first time, the Sagamore conference will be held in India on the beautiful grounds of Shiv Nadar Institution of Eminence, one of the 12 Institutions of Eminence designated by the Government of India. A tour of the Taj Mahal, one of the Seven Wonders of the World, is also included in the program.

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The Polish Crystallographic Meeting, Scientific Workshop and Session of the Young Crystallographers Sections of PCrA will be held at the Institute of Low Temperature and Structure Research of the Polish Academy of Sciences, ul. Okólna 2 in Wrocław.

The Workshop is devoted to selected issues and problems of modern crystallography.

The Scientific Session of the Young Crystallographers Section of PCrAÂ is a forum for exchanging experiences addressed primarily to students, PhD students and young doctors (maximum 5 years after defense).

The topics of the Meeting include basic and applied research on the ideal and real structure of crystals carried out with the use of X-ray radiation obtained both with traditional methods and in synchrotrons, research with the use of neutrons and electrons, problems of symmetry, phase transformations and crystal growth, new research and computational methods and all other aspects of crystallography. The conference is an annual meeting place and a forum for exchanging ideas of all Polish crystallographers.

Lecture 35: "Einstein-Podolsky-Rosen Paradox, Bell's Theorem, entanglement, GHZ paradox , ‘nonlinear’ crystals, quantum teleportation, and Nobel Prize 2022" by Marek Żukowski (University of Gdansk, Poland)