#WEASEL helps our industry partners solve real world challenges efficiently using quantum chemistry, bridging the gap between computation and experiment.

Check out this paper, where Michael Edmund Beck, Silke Wagner, and colleagues from Bayer Crop Science investigate the isomerization potential of plant protection products on leaf surfaces.

https://doi.org/10.1021/acsagscitech.5c00699

#CompChem #QuantumChem #Agrochemistry #PlantProtection #Workflows #ORCAqc

Check out the new Jupyter notebook on the calculation of redox potentials with #ORCA and our ORCA Python Interface (#OPI) by our Computational Scientist Hagen Neugebauer:

https://www.faccts.de/docs/opi/nightly/docs/contents/notebooks/redox.html

OPI Docs: https://www.faccts.de/docs/opi/docs/
OPI on GitHub: https://github.com/faccts/opi

#ORCAqc #OPI #ORCAPI #CompChem #QuantumChem #Python #FACCTs #ChemSky

Check out the recent work on the photohydrolysis of furans by our scientific advisor and Nobel laureate Benjamin List, Siegfried Waldvogel and colleagues with contributions from Benjamin Helmich-Paris. For a quick start on GOAT, DLPNO-CCSD(T), and more also check our ORCA tutorials https://www.faccts.de/docs/orca/tutorials/.

https://doi.org/10.1126/science.aec6532

#FACCTs #MPIKOFO #MPICEC #CompChem #ORCAqc #ChemSky

ORCA 6.1 TUTORIALS

Young, curious scientists are our future. That’s why we’re especially delighted to sponsor this year’s #JCF Frühjahrssymposium in our hometown of Cologne. We’re looking forward to meeting many of you there!

https://symposium.jcf.io/

#FACCTs #FJS2026 #JungesChemieForum #GDCh #ORCAqc #OPI #ChemSky

We’re excited to sponsor this year’s #CCSC2026, taking place March 10–13 in Munich, Germany!

Meet us in Munich and learn more about the latest #ORCA (FACCTs & Max-Planck-Institut für Kohlenforschung) features and our ORCA Python Interface (#OPI).

We’re looking forward to seeing you there!

CCSC: https://ccsc2026.github.io/
ORCA: https://www.faccts.de/orca/
OPI: https://github.com/faccts/opi

#FACCTs #ORCAqc #CompChem #QuantumChem #OPI #ORCAPI #MachineLearning #MPIKOFO

What an incredible Christmas gift!

The #ORCA community has reached a major milestone: 100,000 registered users.
Thank you all for your trust and for being such an important part of ORCA’s journey. Your support is what makes this success possible.

#ORCAqc #FACCTs #MPIKOFO #CompChem #ChemSky

We at FACCTs wish you all a wonderful and peaceful holiday season and a great start to the new year!

#FACCTs #ORCAqc #WEASEL #Holidays

#CASSCF and (TD-)DFT are well-established components of #ORCA's method portfolio. Check out the new paper by Krewald et al., who use both for tuning the photoreactivity of Fe(III)-azido complexes.

https://doi.org/10.1002/cptc.202500298

CASSCF in ORCA: https://www.faccts.de/docs/orca/6.1/manual/contents/modelchemistries/CASSCF.html#sec-modelchemistries-casscf

#ORCAqc #CompChem #ChemSky #QuantumChem

We are visiting STC in Berlin! Come and join us at our poster presentation—we look forward to many exciting discussions with you! Also check out all the new ORCA features and the new ORCA Python interface, OPI!

#FACCTs #ORCAqc #STC2025 #CompChem #TheoChem

Visit Anneke Dittmer, Bernardo de Souza, and Christoph Riplinger at the SMASH in beautiful Porto! Get the latest information about our quantum chemical NMR toolkit. We look forward to seeing you there!

#FACCTs #ORCAqc #SMASH2025 #CompChem #TheoChem #NMR