3 days to go until submissions close, please submit your papers for the upcoming IUCr2026! 📅 Submissions close February 15, 2026. Time is running out to be included in the scientific program in Calgary. event.fourwaves.com/...

➡️ 4 days until the IUCr2026 abstract deadline! You do not need to register to submit your abstract for Calgary before midnight on Feb 15. ➡️ Submit here: event.fourwaves.com/...

Co-chairing IUCr 2026 MS-012 “Next-generation validation metrics for macromolecular structures” with Deborah Harrus (@deborah83.bsky.social)! Focus: new validation concepts/methods/best practices across all methods. Submit abstracts by Feb 15; early-bird reg by Mar 31. www.iucr2026.org

The Department of Chemistry and Biochemistry at Wilfrid Laurier University is hiring a Tenure Track Assistant Professor in Biochemistry beginning July 1, 2026. Applications will be accepted until March 9, 2026 | 11:59pm. For more info: careers.wlu.ca/job/Waterloo... @chemjobber.bsky.social

Tomorrow!

Our paper on the instrument, beautifully named Wombat, is now published doi.org/10.1107/S160... @japplcryst.iucr.org - We're currently also open for experiment submissions - deadline 16th March neutron.ansto.gov.au

crossword puzzle maker #altchemjobs #chemchat

While making plans to attend #x2026, consider also joining us for the 2026 edition of the Canadian Chemical Crystallography Workshop at the University of Guelph from May 19 - 23! Registration is now open! xtallography.ca/index.php/xt...

⏳ Abstract submissions for IUCr2026 are entering the final stretch. Ensure your work is part of the scientific program in Calgary. 📅 Deadline: February 15, 2026 Submit your abstract: event.fourwaves.com/...

Did you spot the aurora earlier this week? This timely edition of #PeriodicGraphics in @cenmag.bsky.social looks at what causes the aurora and the science behind the different colours: cen.acs.org/environment/... #PeriodicGraphics#Chemsky 🧪

Today is #WorldSnowDay ⛄️ So resharing this guide to snowflake categories!

The IUCr 27th Congress and General Assembly will be held in Calgary, Canada, from August 11th-18th, 2026 - It's not too early to start planning - Learn more and sign up to express your interest -> zurl.co/FP2ho We'll be there!

The Department of Computer Science and Physics at Wilfrid Laurier University invites applications for a Tenure-Track Assistant Professor position in Software Engineering, beginning April 2026. For more information: careers.wlu.ca/job/Waterloo...

Molecular Explorations for 2026 Download our new calendar that highlights the work of Molecule of the Month creator Janet Iwasa

The deadline for abstracts is coming up on February 15, 2026. If you’re planning to present in Calgary, now is the time to prepare and submit your work. event.fourwaves.com/...

Check out this article collection from Journal of Chemical Education, which illustrates how #MOFs have been integrated into classrooms and labs at various educational levels. Explore now: buff.ly/RMOElHU

The IUCr 2026 team wishes you a joyful holiday and a bright new year ahead! Thank you to our global crystallography community, we can't wait to welcome you to Calgary in 2026. #IUCr2026 #Calgary #tourismcalgary #crystallography

Happy Tibb's Eve, everyone! #birds #birdphotography #Ontario

📢 One less molecular mystery - the crystal structure of diacetylene is solved, published in @iucrj.iucr.org today! Fantastic work by Larissa, and also I think will be the first structure deposit in @ccdc.cam.ac.uk from wombat! Read the OA paper here journals.iucr.org/m/issues/202...

Chestnuts roasting on an open fire. Pineapple nipping at your nose. #ChemistsWhoCook

Happy Winter Solstice! Here are four birds from yesterday's chilly walk in a wilderness area! #Ontario #birds

And the molecule of the year for 2025 is...🥁... ...hexanitrogen! (I had a feeling this one would win 🤭) Thanks for voting, everyone! #chemsky cen.acs.org/synthesis/Mo...

Still another month or so to apply to work with me: predicting the crystals and their properties on Titan!

New paper out, High-pressure crystallisation of Isobutyronitrile pubs.acs.org/doi/10.1021/..., nice results from the UWA and Synchrotron team that show this small molecule crystallises into the same structure as at low temperatures. There's some lovely calculations that explain why this may be.

Join the @ccdc.cam.ac.uk at IUCr2026 for hands-on training and expert tips! Learn how to search, visualise, and analyse crystallographic data with confidence using the Cambridge Structural Database (CSD). 👉Details: event.fourwaves.com/...

Geneviève Bergeron Maryse Laganière Hélène Colgan Maryse Leclair Nathalie Croteau Anne-Marie Lemay Barbara Daigneault Sonia Pelletier Anne-Marie Edward Michèle Richard Maud Haviernick Annie StArneault Barbara Klucznik-Widajewicz Annie Turcotte Never forgotten #Dec6 #EcolePolytechnique

Early registration for #IUCr2026 is open through March 31, 2026, and this is the best window to lock in your spot. More time. More flexibility. More clarity. Make your plans official: event.fourwaves.com/...

Paid my registration for IUCr in Calgary next summer, let me know if you are going to be there. #Crystallography #ChemChat #IUCr

📣 Call for Papers: Special Issue on Crystal Growth & Related Characterization in Acta Crystallographica Section B. Building on the launch of our Crystal Growth section in 2021, we continue to advance research in this key area. Submission deadline: 15 Dec 2025. Submit at: journals.iucr.org/b/

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

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