Lightnews — Scholar-powered news

Louise Dawe @louisedawe.bsky.social · 18h

Yes, please! Our Teaching and Education section continues to be a great place to submit this! (Though, I would likely read NatureEdibleMaterials...)

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Reposted by Louise Dawe

Nikolay Tumanov @ntumanovxray.bsky.social · 1d

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

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Louise Dawe @louisedawe.bsky.social · 2d

We report the design and solid-state characterization of a dissymmetric N,N′-bidentate thioether ligand and its structural response under protonation and metal coordination, using single-crystal X-ray diffraction and Hirshfeld surface analysis. @actacrystc.iucr.org @wilfridlaurieruni.bsky.social

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Louise Dawe @louisedawe.bsky.social · 2d

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...

Structural adaptability and hydrogen bonding in a dissymmetric pyrimidine thioether ligand

A dissymmetric pyrimidine thioether N,N′-bidentate ligand was synthesized along with its hydrated form, nitrate salt and a cobalt(II) complex. All four structures were characterized by single-crysta...

doi.org

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Louise Dawe @louisedawe.bsky.social · 10d

Pie looks amazing, and I have the exact same peeler! It is a 10/10!

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Reposted by Louise Dawe

Stefano Canossa @stecanossa.bsky.social · 11d

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

A collection of bright yellow spots starts from the centre of the picture, from the strongest, central one. Clearly not periodically arranged, they have a point-symmetry evident since 4 equally spaced lines of stronger spots irradiate from the centre of the image. Between them, additional smaller spots form geometrical patterns vaguely resembling the fourier transform of an aperiodic crystal. The background colour alternate dark blue and soft teal, whose calm feeling contrasts the energy present in the bright yellow spots, looking like tiny fireflies.

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Reposted by Louise Dawe

Gavi @gavirius.bsky.social · 16d

📣 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 💎.

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Reposted by Louise Dawe

Inorganic Discussion Weekend 2025 @idw2025.bsky.social · 17d

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!

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Louise Dawe @louisedawe.bsky.social · 18d

It far exceeded expectations. 11/10; will🍟🥒again.

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Louise Dawe @louisedawe.bsky.social · 18d

Oh wow! I'm a monthly regular to Long Point/Port Rowan, and would like to recommend the best downscale establishment, Chip Ship. I was there last Saturday, just after seeing this hummingbird at the banding station and just before heading to Big Creek Marsh to see Sandhill cranes!

My head in a dill pickle cut-out, just before eating way too many dill pickle fries.

Fries, piled high with finely sliced dill pickles. Very, very generous portion size.

Ruby-throated hummingbird, with face into a jewel weed flower.

Two sandhill cranes on a grass-covered walking trail.

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Louise Dawe @louisedawe.bsky.social · 24d

Headed into the second full week of Fall term!

Ruby-throated hummingbird, with wings back and beak inside the flower of a jewelweed.

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Reposted by Louise Dawe

Shao-Liang Zheng @shaoliangzheng.bsky.social · 25d

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

Crystallography in school

Preconditions and applications for teaching crystallography in high school chemistry classes are presented.

doi.org

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Reposted by Louise Dawe

FX Coudert @nanoporous.net · Sep 4

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

User interface of the CrystalNets web app

Architecture of the CrystalNets web app, showing client-side and server-side tasks.

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Reposted by Louise Dawe

Matic Lozinšek @maticlozinsek.bsky.social · Aug 30

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...

CrimsonCalc: a software tool for pressure determination based on ruby fluorescence spectra

Software optimized to fit ruby fluorescence spectra, automatically extract the peak positions and calculate the pressure according to the Ruby2020 gauge is presented.

doi.org

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Reposted by Louise Dawe

Louise Dawe @louisedawe.bsky.social · Aug 25

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

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Louise Dawe @louisedawe.bsky.social · Aug 25

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

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Reposted by Louise Dawe

Matic Lozinšek @maticlozinsek.bsky.social · Aug 24

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

Fresh chillies and lacto fermentation of chillies

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Louise Dawe @louisedawe.bsky.social · Aug 22

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!

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Louise Dawe @louisedawe.bsky.social · Aug 21

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!

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Reposted by Louise Dawe

IUCr2026 @iucr2026.bsky.social · Aug 18

👉 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/...

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Reposted by Louise Dawe

Acta Cryst A @actacrysta.iucr.org · Aug 16

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

Can Z, the number of formula units per unit cell, be a fraction? A report of the IUCr Commission on Crystallographic Nomenclature

The Commission on Crystallographic Nomenclature has concluded that, in some rare, carefully justified circumstances, Z, the number of formula units in the unit cell, may be a fraction.

journals.iucr.org

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Reposted by Louise Dawe

Birds Canada @birdscanada.bsky.social · Aug 15

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

A Western Meadowlark sings from sagebrush. Overlay text reads "Field Trip Report: On the Ground in the Grasslands with Birds Canada"

A Burrowing Owl perches on top of a fencepost, which bears an orange band of tape.

A female Sharp-tailed grouse stands alert in long grass.

A Long-billed Curlew walks through short vegetation.

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Reposted by Louise Dawe

Janine George @molecularxtal.bsky.social · Aug 15

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

Can simple exchange heuristics guide us in predicting magnetic properties of solids?

doi.org

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Reposted by Louise Dawe

Mike Glazer @glazer1.bsky.social · Aug 15

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

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