Mathias Christmann
banner
christmann.bsky.social
Mathias Christmann
@christmann.bsky.social
Professor of Chemistry 👨‍🔬 FU Berlin
https://www.bcp.fu-berlin.de/en/chemie/chemie/forschung/OrgChem/christmann/index.html
Loves Tool & learns Python #ChemSky
Reposted by Mathias Christmann
Try to imagine chemistry without JJ Berzelius, who, after thousands of experiments, published the first precise list of atomic weights (1818). Yet Berzelius might have remained a mere physician had he never met Anders Ekeberg. Teachers can influence the course of history.
🧪 #chemsky #chemistry
8 chemists with disabilities who left their mark on history
Scientists with disabilities ascended to the forefronts of their fields long before labs were accessible and civil rights were codified
cen.acs.org
September 21, 2025 at 5:04 PM
Don’t miss Timothy Noël @tnoel82.bsky.social (University of Amsterdam) giving an online @gdch.de lecture organized by the Liebig-Vereinigung.
#ChemSky

Details and registration: gdch.app/event/from-b...
September 15, 2025 at 2:29 PM
Beautiful blood moon over Berlin, captured from Drachenberg last night.
#BloodMoon #Eclipse #NightSky #Berlin
September 8, 2025 at 4:14 AM
Our collaboration with @riedellab.bsky.social @fubcp.bsky.social on photomediated C–H trifluoromethoxylation with bis(trifluoromethyl)peroxide has been published in @chemicalscience.rsc.org

pubs.rsc.org/en/content/a...

#OpenScience #FluorineChemistry #RadicalChemistry #ChemSky
August 25, 2025 at 11:49 AM
Kids have a special eye for spotting the little things we often overlook. Challenge them to ‘find something cool’ and you will be amazed at what they discover.
August 19, 2025 at 4:26 PM
Reposted by Mathias Christmann
New research shows that simply changing how a reaction vessel is positioned on a magnetic stirrer can significantly change a reaction's speed and product quality, influencing the reproducibility of results. #ChemSky #ScienceSky #EduSky
Position of flask on magnetic stirrers can drastically affect reproducibility of experiments
Comprehensive examination reveals improper siting of reaction vessels can affect catalyst formation, alter nanoparticle formation and change yields
www.chemistryworld.com
June 26, 2025 at 2:35 PM
Today, part of the team of the Institute of Chemistry and Biochemistry @fubcp.bsky.social enjoyed great food 🍽️ and discussions at Luise Dahlem before heading together to the university elections at FU Berlin.
Thanks to everyone who joined for the wonderful gathering! #ChemSky #BiochemSky #CampusLife
June 17, 2025 at 6:34 PM
Catch mass (m) & substance amount (n) errors in PDFs! This tool comes handy, but expect false positives for now.
Link: huggingface.co/spaces/Match...

Explore more #OpenChemTools:

Accurate Mass: huggingface.co/spaces/Match...
SI Check: huggingface.co/spaces/Match... #ChemPython #ChemSky
May 30, 2025 at 10:12 AM
Reposted by Mathias Christmann
We demonstrate granular and steerable synthesizability control in molecular generation, allowing to specify reaction and building block constraints while optimizing for molecules with desired properties.

Super proud of Jeff Guo and Víctor Sabanza Gil leading this exciting study! #chemsky
Generate property-optimized small molecules with 𝘴𝘵𝘦𝘦𝘳𝘢𝘣𝘭𝘦 𝘢𝘯𝘥 𝘨𝘳𝘢𝘯𝘶𝘭𝘢𝘳 synthesizability control - allowing complete user-flexibility to impose various reaction constraints!

Pre-print: arxiv.org/abs/2505.08774
Code: github.com/schwallergro...

(1/4)
May 14, 2025 at 2:43 PM
In a world full of AI hype, Dr. Waku (@drwaku.bsky.social) is a calm, clear, and deeply thoughtful voice. Watch ‘On a knife’s edge’ for one of the most grounded takes on why AI might change everything.
youtu.be/nTFMPWyN7gU
On a knife’s edge: why AI will change everything
YouTube video by Dr Waku
youtu.be
May 12, 2025 at 7:30 AM
Reposted by Mathias Christmann
Are you interested in a PhD combining asymmetric transition metal catalysis and data-driven analysis?

We have two PhD positions as part of the EU network CATALOOP (cataloop.eu) that are open to apply:

euraxess.ec.europa.eu/jobs/334833

euraxess.ec.europa.eu/jobs/334837

#ChemSky
April 10, 2025 at 8:20 PM
Reposted by Mathias Christmann
Hi Bluesky! We’re the Department of Biology, Chemistry, and Pharmacy at Freie Universität Berlin. Follow us for a look into research, teaching, and life at our institutes—plus news and events. Welcome to all students, researchers, employees – and every other curious species out there! 🦠🪲🍃🧪🧬
April 1, 2025 at 4:20 PM
Gemini 2.5 Pro's reasoning on domain-specific topics is amazing (and a bit scary, too). Tested it with today’s Chemdl #182 (reaction scheme). The logical steps to the correct answer were spot on. Wow.
#AI #ChemSky #LLM
April 4, 2025 at 9:52 AM
Impressed by Gemini 2.5 Pro to create lecture material: "Can you write a python script that generates a ball and stick model of a rotating water molecule that also show the two planes of symmetry and the c2 axis in a semitransparent Fashion“ #AI #GeminiAI #ChemPython #ChemSky #SciVis @GoogleAI
March 31, 2025 at 7:19 AM
A fantastic day celebrating my PhD advisor’s retirement with friends and the academic family. So many great memories! #ChemSky
March 29, 2025 at 7:31 PM
Great to have Prof. Xiaoguang Lei of Peking University at FU Berlin for his talk, “Opportunities for Merging Chemical and Biological Synthesis”! #ChemicalBiology #Synthesis #ChemBioSky
March 24, 2025 at 4:28 PM
Need to proofread a thesis or lengthy SI? 📄✨ Just drop your PDF into the SI-Check demo on Hugging Face!

👉 huggingface.co/spaces/Match...

DM with feedback or suggestions and help making the tool better!

#Proofreading #AcademicWriting #HuggingFace #OpenScience #ChemSky
March 24, 2025 at 1:45 PM
Reposted by Mathias Christmann
We are delighted to support Benjamin Pölloth's Comp-Chem-Lab project, which uses ORCA to introduce high school students to quantum chemistry. Check out the article and the website of the project:

doi.org/10.1021/acs....
www.comp-chem-lab.de/en

#ORCAqc #ChemicalEducation #CompChemSky #ChemSky
High School Students Experimenting with Computational Chemistry: Design-Based Research on and through the “Comp-Chem-Lab”
Despite the profound impact of Computational Chemistry (CC) on chemical research and understanding, it plays a negligible role in high school chemistry curricula. Integrating CC into high school educa...
doi.org
March 7, 2025 at 9:06 AM
I was surprised by the positive response to our Org. Lett. on analyzing mass data from 3000+ SI files:
🔗 pubs.acs.org/doi/full/10....

For those who’d rather not install Python, you can now check PDFs using a simple #Streamlit app, hosted on Hugging Face:
huggingface.co/spaces/Match... #ChemSky
March 3, 2025 at 4:10 PM
Thanks to everyone on #ChemSky who shared suggestions via DM or in the comments on expanding 🧪 SI checking. It’s evolving, thanks to #vibecoding #ChemPython
February 22, 2025 at 1:47 PM
🤔
February 17, 2025 at 4:21 PM
Lab report grading got you down? 😩 We're building an automated feedback tool! Share your common lab report errors that drive you nuts as regular expression (regex) in combination with a comment line.
Example: r'\b\d+(?:.\d+)?\s+ml\b' catches "ml" vs "mL".
#ChemEd #LabLife #LLM #ChemSky #ChemPython
February 9, 2025 at 11:16 AM
LLM-assisted tool generation is awesome. To extend the HRMS checker (doi.org/10.1021/acs....) to automated experimental checking, a peptide sequence parser function (ca. 200 lines of code) was generated in under 2 hours. #ChemSky
January 26, 2025 at 1:21 PM
Fantastic talk, ‘Organic Chemistry to Shine Light on Biology,’ by Johannes Broichhagen (@broichhagenj.bsky.social) from the Forschungsinstitut für Molekulare Pharmakologie (FMP) in Berlin. For a comprehensive overview of his work, check out: doi.org/10.1002/anie... #ChemSky #ChemBioSky
January 23, 2025 at 7:38 AM
Intriguing yet strange to watch a large language model deconstruct the steps to provide the simple answer ‘No.’ A brilliant comparison by @emollick.bsky.social to Marvin, the paranoid android from The Hitchhiker’s Guide to the Galaxy. #ChemSky
No matter how much you fight it, I find that the visible chain-of-thought from DeepSeek makes it nearly impossible to avoid anthropomorphizing the thing

The visible first-person "thinking" makes you feel like you are reading a diary of a somewhat tortured soul who wants to help. Weird interaction
January 22, 2025 at 9:10 AM