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Sebastian Kozuch Comp Chem 🎗️ @kozuchsebastian.bsky.social · 1d

A pure cleavage should (theoretically) leave the two fragments entangled, AKAIK. However, the minimal interaction with a "bath" (usually other molecules) will make the system decohere, and that would be the end of the spooky story.

Sebastian Kozuch Comp Chem 🎗️ @kozuchsebastian.bsky.social · 3d

If you're suddenly interested in ℚ𝕦𝕒𝕟𝕥𝕦𝕞 𝕋𝕦𝕟𝕟𝕖𝕝𝕚𝕟𝕘, hear me out:
Do you know the famous dead/alive cat?🙀
With @aromaticist.bsky.social group we found a case where the tunneling in rings makes them Aromatic and Antiaromatic at the same time!⌬
doi.org/10.1039/D5SC...

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Sebastian Kozuch Comp Chem 🎗️ @kozuchsebastian.bsky.social · 3d

We found (theoretically) another case of F tunnel!
Now, for the same price, including a fluorine halogen bond.
"Fluorine Ping-Pong Tunnelling in Cages"
New J. Chem. - Festschrift for Giuseppe Resnati
doi.org/10.1039/D5NJ...

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Sebastian Kozuch Comp Chem 🎗️ @kozuchsebastian.bsky.social · Sep 8

"The chemical bond: The biggest chemical paradigm, or the greatest chemical uncertainty?"

Yay, my first philosophy of chemistry article in the Jargonium blog 🥳
www.jargonium.com/post/the-che...

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Sebastian Kozuch Comp Chem 🎗️ @kozuchsebastian.bsky.social · Aug 3

We just submitted an article on aromaticity. I will not disrespect this field until the paper is accepted.

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Sebastian Kozuch Comp Chem 🎗️ @kozuchsebastian.bsky.social · Aug 2

The fact that you have to ask explains everything. 😝

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Sebastian Kozuch Comp Chem 🎗️ @kozuchsebastian.bsky.social · Aug 2

Yep. Same vibes.

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Sebastian Kozuch Comp Chem 🎗️ @kozuchsebastian.bsky.social · Aug 2

The chemical bond is a mess. So I tried to map it.
Now it is still a mess, but in a network.
public.flourish.studio/visualisatio...

This is a work in progress.
Let me know which bonds and connections I am missing.

ChemBond Network

A Flourish data visualization by viejo

public.flourish.studio

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Reposted by Sebastian Kozuch Comp Chem 🎗️

Chemistry World @chemistryworld.com · Jul 3

Milko van der Boom – who served as as the head of several key chemistry departments before assuming his current leadership role in December 2024 – insists his chemistry department will rebuild after the destruction caused by Iranian missiles.
www.chemistryworld.com/news/how-do-...

How do you rebuild your lab after it is hit by an Iranian missile?

Milko van der Boom talks to Chemistry World about dealing with destruction at the Weizmann Institute, saving samples and people coming together

www.chemistryworld.com

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Sebastian Kozuch Comp Chem 🎗️ @kozuchsebastian.bsky.social · Jun 28

Register to get info on WATOC 2028 in Merida!
docs.google.com/forms/d/e/1F...

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Sebastian Kozuch Comp Chem 🎗️ @kozuchsebastian.bsky.social · Jun 27

Remember the old story of the non-classical norbornyl cation?🤔
It can also be classical, and it can react by Quantum Tunneling!🙀
And wait until you hear about the effect of putting it into an electric field...⚡️
pubs.acs.org/doi/10.1021/...
Proudly part of Phys Org Chem JOC Issue⚗️

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Sebastian Kozuch Comp Chem 🎗️ @kozuchsebastian.bsky.social · Jun 24

doi.org/10.1039/D5CP...

How Small Can a Catenane Be, if We Consider Quantum Tunnelling?

We explored the kinetic stability of the smallest possible alkane-based catenanes and rotaxanes, focusing on their heavy atom quantum tunnelling instability. We found that the “corset effect” exerted ...

doi.org

Sebastian Kozuch Comp Chem 🎗️ @kozuchsebastian.bsky.social · Jun 24

A difficult morning here in Beer Sheva, but at least we have this beauty just published:
"How Small Can a Catenane Be, if We Consider Quantum Tunnelling?"

And it is part of the "Celebrating Latin American Chemistry"💪
pubs-rsc-org.bengurionu.idm.oclc.org/en/content/a...

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Sebastian Kozuch Comp Chem 🎗️ @kozuchsebastian.bsky.social · Jun 19

FYI, Ben-Gurion University was only slightly shaken by the rocket falling in the neighboring Soroka Hospital. The chemistry building is fine. Some broken glasses in other buildings.

Sebastian Kozuch Comp Chem 🎗️ @kozuchsebastian.bsky.social · Jun 15

Sadly, and due to obvious circumstances, I will not be able to join you next week at WATOC in Oslo.🥲Have fun in my name.
I hope I will be able to see all of you next time in Mexico!
Let's try to bring peace and stability through science for everyone.

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Sebastian Kozuch Comp Chem 🎗️ @kozuchsebastian.bsky.social · Jun 12

And when we thought we already knew all possible small molecules, N6 suddenly appears🤯
One of the most beautiful papers of the 21st century was published yesterday.
www.nature.com/articles/s41...

Preparation of a neutral nitrogen allotrope hexanitrogen C2h-N6 - Nature

The facile synthesis and spectroscopic identification of previously unreported hexanitrogen C2h-N6 is described, representing experimentally realized neutral molecular nitrogen allotropes beyond N2 th...

www.nature.com

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Reposted by Sebastian Kozuch Comp Chem 🎗️

Chemistry World @chemistryworld.com · Jun 6

Quantum tunnelling may be common at the tiniest scales, but no one had ever observed the phenomenon in fluorine - the element was simply thought to be too heavy. Now, this accepted wisdom has been upended in new experiments that observe fluorine tunnelling

www.chemistryworld.com/news/fluorin...

Fluorine surprises by becoming heaviest atom ever to quantum tunnel

First experimental evidence of tunnelling in fluorine pushes the boundary of our understanding of chemical bonding

www.chemistryworld.com

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Sebastian Kozuch Comp Chem 🎗️ @kozuchsebastian.bsky.social · May 24

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Sebastian Kozuch Comp Chem 🎗️ @kozuchsebastian.bsky.social · May 24

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Sebastian Kozuch Comp Chem 🎗️ @kozuchsebastian.bsky.social · May 24

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Sebastian Kozuch Comp Chem 🎗️ @kozuchsebastian.bsky.social · May 24

I gave a small lecture on history of chemistry. Some slides were interesting, and since I am waiting for some jobs to finish, here they are.

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Sebastian Kozuch Comp Chem 🎗️ @kozuchsebastian.bsky.social · May 13

Celebrating the Birth Centenary of Quantum Mechanics: A Historical Perspective | Industrial & Engineering Chemistry Research pubs.acs.org/doi/10.1021/...

Celebrating the Birth Centenary of Quantum Mechanics: A Historical Perspective

In July 1925, Werner Heisenberg submitted a paper to Zeitschrift für Physik entitled ‘On quantum-theoretical reinterpretation of kinematic and mechanical relationships’, thus giving birth to quantum m...

pubs.acs.org

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Sebastian Kozuch Comp Chem 🎗️ @kozuchsebastian.bsky.social · May 11

Someone just send me this brilliant question in an exam.
Would you be able to push this in your institution?

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Sebastian Kozuch Comp Chem 🎗️ @kozuchsebastian.bsky.social · May 10

Did you know that the previous pope specialized in chemistry at high school?