Marc Hamilton Garner

Theoretical and computational chemist. Molecular Electronics, MO theory, Hund's rule violations and more. @Carlsbergfondet Postdoc at @DTUEnergy.

[Igor Roncevic @igor_roncevic]

We did some pretty twisted stuff and Science liked it: https://t.co/fRc6QCSkcs

[Leo Gross @Leo_Gross_IBM]

Happy to share a new molecular topology. We call it half-Moebius. Even switchable between on, off and reversed winding. Exhibiting twisted orbitals, confirmed by quantum computing. https://t.co/cmwmfFKxVu

[Philippe Schwaller (he/him) @pschwllr]

Exciting postdoc opportunity in the @SchwallerGroup at EPFL!

We're hiring a postdoc to advance ML-driven synthesis planning after Zlatko Joncev’s successful exit to co-found B-12 (YC '25) 🚀

Work on:
- LLMs for strategic synthesis planning
- Chemical reasoning at scale
- Building the next-gen framework for retrosynthesis

Our recent preprint shows that LLMs can guide synthesis planning with natural-language strategies — combining AI reasoning with traditional chemical tools (https://t.co/RYVkt5NRYA).

Join us at the intersection of chemistry & AI. Up to 2 years. Based in Lausanne 🇨🇭

Apply: https://t.co/c3Uh1wcRjt

#ChemTwitter #MachineLearning #SynthesisPlanning #PostdocPosition

[Janus Juul Eriksen @JanusEriksen]

The call for the first 2y postdoc position on this new project with a start by early 2026 (Jan/Feb) is now live:

https://t.co/itjCfMVqcj

Please share & repost. Deadline is 14 Sept. Copenhagen is a truly wonderful place to live and we offer excellent terms of employment at DTU.

[ICESAA-4 @icesaa4]

Join us for ICESAA-4, the 4th International Conference on Excited State Aromaticity & Antiaromaticity! January 8–11, 2026, IISER Thiruvananthapuram, India. Discover the latest in excited-state chemistry through keynotes, talks, and much more.
#icesaa4
Web: https://t.co/Rjs289JorL

[Chemical Communications @ChemCommun]

Another of our most popular articles:

'Enhanced inverted singlet–triplet gaps in azaphenalenes and non-alternant hydrocarbons' from @Marc_H_Garner, J. Terence Blaskovits and @corminboeuf_lab 🔓

@EPFL_CHEM_Tweet

https://t.co/CdWzP1GkaN

[Ganna (Anya) Gryn’ova 🇺🇦 @grynova_CCC]

Come be my colleague! We are recruiting an Assistant Prof in #compchem - broadly defined, all areas are welcome, the key requirement is excellence! Deadline February 2. #academicjobs @chemjobber https://t.co/y8HIQ1DDBN

[Kristian Frandsen 🦋 @kristianfrandsen.bsky.social @KrFrandsen]

One of the greatest is no longer 😢
Dear Sine, it has been an honour to do MSc, PhD and postdoc in your crystallography section 🫡

Tribute to Professor Emerita Sine Larsen
https://t.co/879XmVC5AF

[Erik Donovan Hedegård @erikdonhed]

Hi all,

Come join us at @SyddanskUni 😊 🇩🇰

We are hiring in a post-doc at in quantum computing / inorganic chemistry #compchem

Deadline: Feb 15, 2025
Start Date: March 1, 2025
Duration: 2 years
RT appreciated 🙏@Chemjobber

[The Journal of Physical Chemistry @JPhysChem]

Bridged annulene perimeters are identified as a new class of molecules with excited-state Hund’s rule violations, which are structurally in-between the known classes of non-alternant hydrocarbons and azaphenalenes. @corminboeuf_lab @Marc_H_Garner
https://t.co/TLyXEv1Vzv

[The Journal of Physical Chemistry @JPhysChem]

Derivatives of the bicyclic hydrocarbon calicene exhibit Hund’s rule violations in charge-transfer states between its rings. These states can be tuned with substituents, so that the first excited singlet and triplet state are energetically inverted.
https://t.co/fgaR2Yq7GP

[Christina Wegeberg @CWegeberg]

⚡We are hiring!⚡ Interested in working with synthetic chemistry, spectroscopy and photoactive transition metal complexes?
PhD positions (deadline Nov 22nd): https://t.co/WcaP0U9X7D
Postdoc position (deadline Dec 1st): https://t.co/UjnUJwzQdS
RT appreciated😁@Chemjobber

[Thijs Stuyver @thijsstuyver]

A 2-year postdoc position in computational chemistry & ML is available in our group at @psl_univ (more info about the project below). Applications can be submitted through the CNRS job portal: https://t.co/hvaAxWAz6r. Deadline: Sept 24th. Retweets are appreciated! #chempostdoc

[Michael Haley - UOregon Chemistry @UOHaleyLab]

Got invited to 2025 IUPAC meeting in Malaysia but said no:
"I refuse to visit a country where my sexual orientation could lead to my imprisonment for 20 years, or worse. IUPAC should be ashamed to hold this meeting in a country where homophobic views are considered acceptable."

[Marc Hamilton Garner @Marc_H_Garner]

@MarioBarbatti My single molecule conductance example - there are compchem papers on the phenomenon before mine (referenced as carefully as I could). But in terms of finding the molecular systems. Compchem prediction: https://t.co/apYbqE9Aoq and experiments that followed https://t.co/gW68eEvIc0

[Nanna H. List @ListNanna]

📢A 2-year postdoc scholarship (Carl-Tryggers Foundation) in theoretical chemistry is available in our group at #KTHuniversity. Focus will be on method development for electronic-spin dependent non-adiabatic molecular dynamics.
DM me for further details.

[Rubén Laplaza @ruben_laplaza]

As CPUs have gotten faster and RAMs have gotten bigger, quantum chemists are now modelling large complex homogeneous catalysts with DFT. But these larger systems also lead to other problems, namely the existence of many conformations.

[Marc Hamilton Garner @Marc_H_Garner]

@ruben_laplaza Glad I could contribute to solving one of the biggest obstacles: Finding the right acronym 👏

[Sigurd Christiansen @sigurd88]

The University of the Faroe Islands is seeking a Dean for our Faculty of Science & Technology. Help shape the future of higher education in beautiful Tórshavn.

📅 Start: Aug 1, 2024 🗓️ Apply by: June 7, 2024 🔗 https://t.co/f0coEROeJD
#HigherEd #FaroeIslands #JobOpening

[IOCB Prague @IOCBPrague]

It is with profound sadness that IOCB Prague announces the sudden passing of Prof. Josef Michl, a globally esteemed Czech chemist, on Monday, 13 May, at the age of 85. Prof. Michl led research groups at @IOCBPrague and @CUBoulder.

"He was one of the few true geniuses I have had the honor to meet," says Prof. @konvalinka_jan, director of IOCB Prague. "He mastered several world languages, had extensive knowledge of history and culture, and a deep understanding of the natural sciences. The science he did was not only brilliant but also beautiful, playful, and witty. Besides that, and above all, he was a kind and generous man. We will miss him dearly."

Dr. Zdeněk Havlas, Vice President of the @CzechAcademy and a long-time friend and colleague of Josef Michl, responded to the news of his passing: "The passing of Prof. Michl is a great loss both professionally and personally. He knew everything there was to know about chemistry and science in general. It was a joy to discuss with him. For the past 20 years, I traveled to Boulder annually for a month, not because of a lack of computing technology, but for discussions about work and life in general. This often took place while enjoying a plum cake, which he loved and which I baked for him at their home."

Prof. Josef Michl, Ph.D. (12 March 1939 in Prague – 13 May 2024 in Prague), was a distinguished figure in the field of chemistry with an extremely wide range of professional interests in which he achieved significant results and worldwide renown. He excelled as both a theoretician and an experimentalist, devoted, among other things, to macromolecular chemistry, photochemistry, molecular electronics, research towards the development of efficient solar cells, and the creation of molecular "building blocks" enabling, for example, the creation of nanorotors and nanomotors.

Josef Michl studied chemistry at @science_charles and completed his dissertation under the supervision of quantum chemist Rudolf Zahradník at the Institute of Physical Chemistry of the Czechoslovak Academy of Sciences. He earned his doctorate in 1965 and subsequently worked at the Universities of Houston and Austin. After a brief return to Czechoslovakia, he attended a summer school in quantum chemistry in Norway in 1968, from which he did not return following the Warsaw Pact invasion of Czechoslovakia in August 1968. He then served as an assistant professor in Denmark before moving to the United States, where he held positions at the University of Utah in Salt Lake City and the University of Texas at Austin. In 1991, he joined the University of Colorado at Boulder, where he led a research group until his death. From 2006, he also worked at IOCB Prague, where he received the prestigious ERC Advanced Grant in 2009.

In 1986, he was elected to @theNASciences, and in 1988, he became a member of the International Academy of Quantum Molecular Science and served as its president from 2012 to 2018. In 1995, he became a member of the Learned Society of the Czech Republic @ucena_spol. In 1999, he was elected to @americanacad. He authored over 600 scientific papers, several books, and numerous patents.

Throughout his illustrious career, Josef Michl received many prestigious awards, including the Alexander von Humboldt Award (1980), the Schrödinger Medal (1993), the Hammond Award (2015), the Neuron Award for Contribution to World Science (2016), the Medal of the Learned Society of the Czech Republic for Merit in the Development of Science (2019), and others. He also received honorary doctorates from @Georgetown University, @UniPardubice, and @MasarykUni.

https://t.co/lDqEje84lf