Lake and Von Dreele: The structures of mcgovernite and carlfrancisite reconsidered: static disorder or ordered defects and twinning? ##PowderDiffraction##Twinning##Disorder@iupedu...##IUCrhttps://journals.iucr.org/paper?S2052520625009175

This is a really neat webtool for crystallographic symmetry. (switch on "Manage symmetry" > "complete elements" to get the full picture) https://www.crystallify.com/ @strucbio #crystallography #structuralbiology

The Canadian National Committee for Crystallography will be hosting a Codding Lecture in support of early career crystallographers on Nov 5 at 1 PM EST. Strain and Defect Analysis in InSb/GaAs Heteroepitaxy with a Novel 3D Reciprocal Space Approach by Trevor Blaikie. xtallography.ca/index.php/co...

The Canadian National Committee for Crystallography will be hosting a Codding Lecture in support of early career crystallographers on Nov 5 at 1 PM EST. Strain and Defect Analysis in InSb/GaAs Heteroepitaxy with a Novel 3D Reciprocal Space Approach by Trevor Blaikie. xtallography.ca/index.php/co...

arXiv will no longer accept review articles and position papers unless they have been accepted at a journal or a conference and complete successful peer review. This is due to being overwhelmed by a hundreds of AI generated papers a month. Yet another open submission process killed by LLMs.

It sure would be ... scary to miss any deadlines for #IUCr2026 Abstracts are due February 15, 2026: event.fourwaves.com/... Register before March 31, 2026 for discounted rates event.fourwaves.com/... Newsletter sign-up www.iucr2026.org/#IUCr2026 #HappyHalloween

Happy to be highlighted by @unbresearch.bsky.social @discoverunb.bsky.social for this exciting work completed by Dr Mason Lawrence and Rob Horne on our team, supported by Research NB. blogs.unb.ca/newsroom/202...

Explore the world of Powder Diffraction at IUCr2026. Microsymposia will include New developments in in-situ and in-operando experimentation: pushing boundaries and In-situ studies of materials synthesis and crystal growth Submit your abstract today! event.fourwaves.com/...

Ravish Sankolli et al.: Role of restraints on hydrogen atoms in Hirshfeld atom refinement: the case of tri-aspartic acid trihydrate ##HirshfeldAtomRefinement##Restraints@unibern@unibern@durham_uni@fu_berlin@unibern...##IUCrhttps://journals.iucr.org/paper?S2052520625006110

I hope to finish the rest of wallpaper groups cookies during this New Year holidays :)

Congratulations to Kaycee (NSERC USRA) and Kaitlyn (MSc, defended this month) as first authors on this work, and their outstanding mentor Lana, now a faculty member at York! Structural adaptability and hy­dro­gen bonding in a dissymmetric pyrimidine thio­ether ligand doi.org/10.1107/S205...

My fellow #FourierTransform enthusiasts, here's a new entry in my collection ready for you, nr. 56! The real-space picture is an intersection of two tilings of squares, one tilted by 43°. Moiré pattern? Definitely related 💯 As always, you can find the high-res pair at behance.net/specialdefects

📣 The #GE3C has awarded the Gold Medal 🎖️, its highest distinction, to Professor Santiago García Granda, from the University of Oviedo and President of the IUCr, in recognition of his extensive and outstanding 🔝 scientific career in the field of crystallography 💎.

We're excited to announce that the 55th Inorganic Discussion Weekend will take place November 7th-9th, 2025 at Western University! Registration and abstract submission are NOW OPEN on our website: idw2025.ca More details of the event can be found on our website!

Headed into the second full week of Fall term!

A great approach: "analysis of #CrystalStructures in science classes at #HighSchools offers a wide range of opportunities for illustrating and improving understanding of fundamental #StructuralChemistry concepts"😀 doi.org/10.1107/S160... @japplcryst.iucr.org #K12 #crystallography #Education

“CrystalNets: a web app for topology determination of crystalline structures” — our latest preprint on @chemrxiv.org doi.org/10.26434/che...

If you're measuring ruby fluorescence to determine pressure in your DAC experiments, try our new program: "CrimsonCalc: a software tool for pressure determination based on ruby fluorescence spectra". Just published in @japplcryst.iucr.org. @iucrjournals.bsky.social doi.org/10.1107/S160...

The European Crystallographic Meeting begins today in Poznań, Poland! 🎉Stop by the IUCr booth to connect, chat about publishing, and get a preview of IUCr2026 (@iucr2026.bsky.social) in Calgary, Canada. We’re excited to welcome you next year! www.iucr2026.org

The European Crystallographic Meeting begins today in Poznań, Poland! 🎉Stop by the IUCr booth to connect, chat about publishing, and get a preview of IUCr2026 (@iucr2026.bsky.social) in Calgary, Canada. We’re excited to welcome you next year! www.iucr2026.org

Wow! Nearly 17k views of my @ActaCrystC.IUCr.org paper about the #SCXRD #CrystalStructure of spicy capsaicin. Time to celebrate with some chillies! 🌶🌶🌶 doi.org/10.1107/S205... #ChemSky #RealTimeChem #Crystallography #Capsaicin #Capsicum #Diffraction

While attending the European Crystallographic Meeting in Poznan, Poland (Aug. 25 - 29), please stop by the @iucrjournals.bsky.social booth (or anywhere else you see me!) to chat about publishing your crystallographic teaching and education initiatives in @japplcryst.iucr.org!

I'll be attending the European Crystallographic Meeting in Poznan, Poland next week. Please stop by the IUCr booth if you would like to chat about publishing your work related to structural science, crystal engineering, and materials in @actacrystb.iucr.org!

👉 Whether you're recharging solo or adventuring with new friends, it's a must-add to your IUCr2026 itinerary. Plan ahead, summer excursions fill fast! More info: www.albertaparks.ca/...

Carolyn P. Brock: Can Z, the number of formula units per unit cell, be a fraction? A report of the IUCr Commission on Crystallographic Nomenclature ##CommissionReport##Z##NumberOfFormulaUnitsInTheUnitCell... ##IUCrhttps://journals.iucr.org/paper?S2053273325007053

In early June, Birds Canada Board Member and long-time supporter Janet Hill (@saskajanet.bsky.social) joined our team on a grasslands conservation tour across southern Saskatchewan. Learn how science, innovation, and partnerships are making a difference for grassland birds: tinyurl.com/2j92txnt

Interested in predicting magnetism in transition metal compounds? We have written a paper on how to use exchange heuristics in such models. We also show limits of current theoretical approaches. Please find our preprint here. doi.org/10.26434/che... #compchemsky

For lovers of #crystallography: The latest issue of the @IUCr Newsletter is out at www.iucr.org/news/newslet....

Other birders: "I heard that there is a bittern around here. Have you seen it?" Me (currently being a bad birder): "Uh...I'm here for the bugs."

My amazing Department of Chemistry and Biochemistry at @ulethbridge.ca is seeking a motivated & talented candidate for a tenure-track Assistant Professor position in the area of experimental chemistry. We encourage you to apply or help spread the word! uleth.peopleadmin.ca/postings/8541

Bugs! All seen yesterday while out walking in Waterloo. #Ontario

Sending a very warm welcome to my newest colleague, @holly-fruehwald.bsky.social! I'm looking forward to collaborations in the near future! 🤩

Check our new metallosupramolecular-based ring-in-ring complex showing reversible host-guest dynamics and switchable electrochemical properties, now published in @nanoscale-journals.rsc.org. pubs.rsc.org/en/content/a...

I had no idea that beavers had such elaborate grooming routines! This one spent 20 minutes bathing before setting off for a swim!

Wow, that brings back old memories from my PhD!

Not at #aca2025? Sign up for updates using the "expression of interest" form at www.iucr2026.org

Also if you at at #ACA2025 and missed my talk today, you can catch my other talk on Tuesday in 4.2.3 Engaging Students with Crystallography where I will share lessons learned from creating/running a protein crystallography CURE!

Thrilled that PDB data is now part of the @ccdc.cam.ac.uk leaderboard at #aca2025! Go, PDB depositors, go!

Great Hot Structures session at #ACA2025! ACA Etter Student Award winner Sarah Narehood, @biophyskrys.bsky.social, Nikolas Capra, Rachel Kretsch, Debanu Das, Daniel Richman @acastructuralsci.bsky.social

Giddy up to Calgary! Stop by our #IUCr2026 booth at #ACA2025 to gear up for the 2026 Conference to get some Calgary Stampede merch, plan your trip, meet other attendees and more!

Cal the Calgary Stampede horse is having a blast visiting the exhibitors at #ACA2025! Come visit the #IUCr2026 booth at #ACA2025 to find Cal and gear up for Calgary!

Interested in the "Crystallography Through The Decades" session at #aca2025? Take a tour of the PDB over the years at PDB-101 pdb101.rcsb.org/motm...#aca2025?

And away we go! #ACA2025 is a go! A great Keynote from Stephen Burley form the @rcsbpdb.bsky.social to kick off our opening ceremonies. Then our reception ... Great to see everyone! @acastructuralsci.bsky.social Tomorrow ... Sessions begin!

#OnTheCover of issue 59... "Hydro- and chloroelementation reactions across an iron–carbon bond using heavy group 15 reagents" by Joseph A. Zurakowski, Mitchell A. Z. MachEachern, Connor S. Durfy, Paul D. Boyle, Saurabh S. Chitnis and Marcus W. Drover Read it here 🔓 buff.ly/2T7bybB

I mean, "first x-ray crystallography postdoc in space" does kind of have a ring to it

So excited to be a Keynote Speaker at MOF-2026! It’s sure to be an amazing conference with @profamo.bsky.social and Natalia Shustova at the helm! 🤗

We're pleased to announce that Professor Len MacGillivray has been appointed as the new Main Editor for the Chemistry and Crystal Engineering section of IUCrJ @usherbrooke.bsky.social

Thank you very much for highlighting @beatascienceart.bsky.social illustration of our study on mitoribosome evolution and for explaining the work behind it. It was a wonderful collaboration, and still my favourite cover! @molbioevol.bsky.social Exciting to see how art and science come together

Weekend vibes. #Turtle