Mathias Christmann
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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
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
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
April 4, 2025 at 9:55 AM
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
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
Of course, you can search for the expressions (as I did for a small test set), but without reviewing the context, it is difficult to make a definitive decision. Maybe a neutral alert is appropriate.
February 9, 2025 at 6:46 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
Thx! This exercise focused on 3 aspects:
1. Identifying the longest chain, even when a shorter chain w/ multiple bonds is present
2. Ignoring multipliers (di-, tri-, tetra-) when alphabetizing substituents
3. Assigning configurations, especially with vinyl vs. quaternary carbon substituents
January 9, 2025 at 8:15 AM
I think both names are okay. Here is what Perplexity finds:
January 8, 2025 at 4:58 AM
Here’s a great exercise question combining multiple concepts for the IUPAC nomenclature section of an introductory organic chemistry course! #ChemSky
January 7, 2025 at 1:03 PM
Hi Manuel, Happy New Year! You can use Decimer.ai by Christoph Steinbeck & team. Simply copy the structure from a screen or PDF, paste it into Decimer to get the SMILES, and then paste the SMILES into ChemDraw. #ChemSky
January 3, 2025 at 9:17 AM
Good opportunity for a cross-generational visual pun in OC1, today #ChemSky
December 9, 2024 at 8:54 AM
It feels like em dashes — are everywhere: e-mails, reviewer reports, social media posts… Just a coincidence, or is everything run through #ChatGPT these days? #ChemSky
December 7, 2024 at 7:14 AM
Great talk "Tuning redox potentials in photocatalysis for challenging transformations" by Prof. Kirsten Zeitler of Uni Leipzig. Tomorrow, Prof. Anne-Marie Kelterer of TU Graz will give a presentation on “Photoinitiators for Radical Photopolymerization”
November 26, 2024 at 8:57 PM