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Shun Tokuda / 徳田駿

@shuntokuda.bsky.social

260 followers 170 following 78 posts

PhD student in the Lotsch group @lotschgroup.bsky.social, MPI-FKF, Germany / Porous materials / Crystallography / Structural complexity https://scholar.google.com/citations?user=5OUGkH0AAAAJ&hl=ja

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Shun Tokuda / 徳田駿 @shuntokuda.bsky.social · Mar 18

Today is a special day! I am very proud to announce that my first first-author paper on WaaFs is finally out in @naturechemistry.bsky.social !!! 🎊🎉

Huge thanks to @furukawas.bsky.social and the group members for their great support in my last six years in Kyoto!

www.nature.com/articles/s41...

Three-dimensional van der Waals open frameworks - Nature Chemistry

In reticular chemistry, the formation of strong chemical bonds between molecular components is typically considered a core prerequisite for synthesizing open-framework materials. Now a series of robus...

www.nature.com

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Shun Tokuda / 徳田駿 @shuntokuda.bsky.social · 1d

Spot one substitutional defect

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Reposted by Shun Tokuda / 徳田駿

Stefano Canossa @stecanossa.bsky.social · 4d

My tutorial review on single crystal diffraction analysis is now online @crystengcomm.rsc.org! Students, supervisors, and reviewers: Please consider this thought-provoking read to discover many facets of the crystallographic practice that are often overlooked or misunderstood 💎 #crystallography

Useful practices in single crystal diffraction analysis of reticular structures

Single crystal diffraction analysis remains the gold standard for the three-dimensional atomic structure characterization of framework materials such as metal–organic frameworks, covalent organic fram...

pubs.rsc.org

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Shun Tokuda / 徳田駿 @shuntokuda.bsky.social · 8d

You can actually see expansion in the a-b plane when pushed along c axis
I’m still hesitating to make the rigid counterpart MIL101

Shun Tokuda / 徳田駿 @shuntokuda.bsky.social · 8d

On day3 I welcomed a flexible family member

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Shun Tokuda / 徳田駿 @shuntokuda.bsky.social · 9d

Day2 is this open metal site guy

It is easy to synthesize, but was quite tricky to assemble with papers

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Shun Tokuda / 徳田駿 @shuntokuda.bsky.social · 10d

Good idea! Let’s see how German beer accelerates my creativity 🍺

Shun Tokuda / 徳田駿 @shuntokuda.bsky.social · 10d

There are too many in the waiting list, but I would be happy to hear recommendations for the next 🙂

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Shun Tokuda / 徳田駿 @shuntokuda.bsky.social · 10d

Celebrated the day 1 of my new hobby with this coolest framework

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Reposted by Shun Tokuda / 徳田駿

Elisha Krieg @elishakrieg.bsky.social · 23d

AI can now generate fake microscopy images that are nearly impossible to detect. A serious threat to scientific integrity—and we’re not prepared for it.

Commentary in @natnano.nature.com

#nanotechnology

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Reposted by Shun Tokuda / 徳田駿

Gavin Craig @g-craig.bsky.social · Sep 6

Really happy to see this team effort out in Angew. Chem., where we used 3D electron diffraction to observe a metal-organic polyhedron-to-polymer transition, and observe the activated phase.

Big thanks to @leverhulme.ac.uk for supporting our work on this.

onlinelibrary.wiley.com/doi/10.1002/...

A Metal‐Organic Polyhedron‐to‐Coordination Polymer Transition Revealed by 3D Electron Diffraction

Here, we show that 3D electron diffraction (3D ED) is an effective technique to observe structural transformations in porous metal-organic polyhedra (MOPs), as well as for obtaining the structure of ....

onlinelibrary.wiley.com

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Shun Tokuda / 徳田駿 @shuntokuda.bsky.social · Sep 5

Thanks! It was really an exciting experience to be among this community as a chemist

Shun Tokuda / 徳田駿 @shuntokuda.bsky.social · Sep 5

I fully enjoyed the intense week in the 6th International School on Aperiodic Crystals at MPI-CPfS in Dresden! A chunk of minerals for my poster prize is a real treat for the painful learning curve I had in the 6D space of quasicrystals.
Huge thanks to the organizers for opening this amazing school!

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Reposted by Shun Tokuda / 徳田駿

Frederik Haase @frederikhaase.bsky.social · Sep 3

Come join our team! We have a PhD position available on noncovalent interactions in COFs. The position is part of the BEAM graduate school. (Details in the alt text)

PhD Position:
One fully-funded doctoral student (m/f/d) position (salary level 65% E13) is available in the group of Jun.-Prof. Frederik Haase at the MLU Halle in Germany (https://www.chemie.uni-halle.de/AK_Haase).
Self-organization in covalent organic frameworks via multiple noncovalent interactions
This project is part of the BEAM: Beyond Amphiphilicity graduate school that also offering career development courses. Applicants must have a completed or soon to be completed scientific university degree (Diploma or Master's) in chemistry, have a solid background in organic chemistry and an interest in organic solid-state chemistry.
Very good knowledge of written and spoken English is required.
Please send your application until 8. September 2025 to frederik.haase@chemie.uni-halle.de. The application should include a cover letter and CV that include your previous research experience.
For the full application text see:
https://www.verwaltung.uni-halle.de/dezern3/ausschr/25_5_8919_25_D_engl.pdf

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Shun Tokuda / 徳田駿 @shuntokuda.bsky.social · Aug 14

Check out this Jiyeon’s beautiful work on the realization of quasiperiodicity with MOFs! 🎉🥳

Beautiful structure does not always have to come with periodicity, even with MOFs!

Jiyeon Kim @jiyeonkim.bsky.social · Aug 13

Just out in Nature Communications! @natcomms.nature.com

We dive into the quasiperiodicity of moiré 2D MOFs😉🔬

Grateful to Prof. W.Choe and our team, and to collaborators Prof. S.S. Park and Prof. J.Kim for their contributions.

Read the paper here👉 doi.org/10.1038/s41467-025-62247-2

Isoreticular moiré metal-organic frameworks with quasiperiodicity - Nature Communications

Twisted bilayer metal-organic frameworks produce dodecagonal quasiperiodic moiré patterns with tunable length scales. Here the authors show that isoreticular ligand design enables control over aperiod...

doi.org

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Reposted by Shun Tokuda / 徳田駿

Jiyeon Kim @jiyeonkim.bsky.social · Aug 13

Isoreticular moiré metal-organic frameworks with quasiperiodicity - Nature Communications

doi.org

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Shun Tokuda / 徳田駿 @shuntokuda.bsky.social · Aug 9

Thursday on the way back from experiments at BESSY II. My brain was totally living in a reciprocal space and this pattern smoothly jumped into my eyes ;)

Shun Tokuda / 徳田駿 @shuntokuda.bsky.social · Aug 8

We are also pleased to guide @esengulciftci.bsky.social to our reciprocal curiosity space! Hope we can extract something interesting from your datasets🤞

Shun Tokuda / 徳田駿 @shuntokuda.bsky.social · Aug 8

My first beamtime at BESSY II MX14 were fantastic!! 💫
Huge thanks to the beamline scientists for the warm supports and of course to Stefano @stecanossa.bsky.social for the diffractive discussions as always!

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Shun Tokuda / 徳田駿 @shuntokuda.bsky.social · Aug 8

Sure! I actually did not realize there is a stacking fault when I took the picture, but now I love it more ;)

FYI, this photo was taken at Tilla-Durieux-Park in Berlin

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Shun Tokuda / 徳田駿 @shuntokuda.bsky.social · Aug 8

c2mm

#BraggYourPattern

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Reposted by Shun Tokuda / 徳田駿

Esengul Ciftci @esengulciftci.bsky.social · Aug 7

Wrapped up 24 intense hours at BESSY II, lots of data, and a truly valuable experience. Huge thanks to @stecanossa.bsky.social and @shuntokuda.bsky.social for the help, and to @simonkrause.bsky.social for all his support. Looking forward to data analysis 😊

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Shun Tokuda / 徳田駿 @shuntokuda.bsky.social · Aug 7

cm stacked on pm
#BraggYourPattern

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Reposted by Shun Tokuda / 徳田駿

Chemical Science @chemicalscience.rsc.org · Aug 3

📢 NEW #ChemSciCovers

'Dynamic breathing behaviour of the titanium-based metal–organic framework NTU-9 upon adsorption of water and organic solvents' by Bettina V. Lotsch, Sebastian Bette et al.

🔗 doi.org/10.1039/D5SC...

@lotschgroup.bsky.social.

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Shun Tokuda / 徳田駿 @shuntokuda.bsky.social · Jul 24

www.nature.com/articles/s41...

Symmetric alternatives to the ordinary least squares regression - Nature Methods

What immortal hand or eye, could frame thy fearful symmetry? ―William Blake, “The Tyger”

www.nature.com

Shun Tokuda / 徳田駿 @shuntokuda.bsky.social · Jul 22

To be more precise, this is actually a commensurate pattern of p31m “drawing” on a p4mm actual floor tilling

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