Sebastian Kozuch Comp Chem 🎗️
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kozuchsebastian.bsky.social
Sebastian Kozuch Comp Chem 🎗️
@kozuchsebastian.bsky.social
Chemistry Prof. at Ben-Gurion University of the Negev
Quantum, Catalysis, Tunneling and the Chemical Bond.
Plus some other stuff loosely connected with science and the academy.
When all the carbons are indistinguishable because they interconvert through 👻ℚ𝕦𝕒𝕟𝕥𝕦𝕞 𝕋𝕦𝕟𝕟𝕖𝕝𝕚𝕟𝕘👻
Meet my new friend, the Armilenyl cation:
doi.org/10.1021/acs....
November 27, 2025 at 1:12 PM
A new type of chemical bond appears every month.
This month is my turn, sort of 😁
Who wants to meet the ℝ𝕖𝕤𝕠𝕟𝕒𝕟𝕥 𝔻𝕒𝕥𝕚𝕧𝕖 𝔹𝕠𝕟𝕕𝕤?
onlinelibrary.wiley.com/doi/10.1002/...
October 29, 2025 at 3:21 PM
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...
October 12, 2025 at 8:15 AM
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...
October 12, 2025 at 8:14 AM
"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...
September 8, 2025 at 8:42 AM
Yep. Same vibes.
August 2, 2025 at 2:23 PM
Register to get info on WATOC 2028 in Merida!
docs.google.com/forms/d/e/1F...
June 28, 2025 at 6:00 AM
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⚗️
June 27, 2025 at 12:59 PM
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...
June 24, 2025 at 9:27 AM
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.
June 15, 2025 at 11:33 AM
May 24, 2025 at 1:56 PM
May 24, 2025 at 1:56 PM
May 24, 2025 at 1:56 PM
May 24, 2025 at 1:56 PM
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.
May 24, 2025 at 1:56 PM
Someone just send me this brilliant question in an exam.
Would you be able to push this in your institution?
May 11, 2025 at 8:47 AM
I just met Ketcher, a free web based molecular structure drawing program.
I am missing the possibility to draw orbitals, but looks pretty good!
An excellent alternative to "the other" obscenely expensive software.
moldraw.com
April 16, 2025 at 6:49 AM
I find this quote insightful. I have it framed and hanged in my lab.
Posting it now may or may not have something to do with the students' survey.
March 22, 2025 at 7:09 AM
"For quantifying reactive species in the gas-phase to solve fundamental problems in catalysis.“:
Helmut Schwartz, Wolf Prize Laureate in Chemistry 2025, has made monumental contributions to catalysis by quantifying reactive species in the gas phase.
Congratulations Helmut! 👏
March 10, 2025 at 7:52 PM
The Wolf prize in chemistry is the second most prestigious award after the Nobel prize in biochemistry.
Who will get it?
March 9, 2025 at 2:55 PM
Compare these two articles...
February 8, 2025 at 11:02 AM
Registered.
These conferences are unique. A must for every computational chemist.
www.watoc2025.no
December 3, 2024 at 12:21 PM
December 1, 2024 at 8:23 PM
This is my first post in this platform. So I am testing it with the most popular post I put in the other platform.
This was my opinion on the last chemistry Nobel prizes.
November 24, 2024 at 8:18 AM