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Henrique C. S. Junior

@hcsj.bsky.social
1.5K followers 4K following 890 posts

Assistant professor at UFRRJ. Computational chemist from Rio de Janeiro. My thing is inorganic and photochemistry. I do some python. I play some blues. This is my personal account. Opinions are my own.

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Henrique C. S. Junior @hcsj.bsky.social · 03/10/2026
You rock, guys! Congratulations.
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Volker Blum @aimsduke.bsky.social · 02/10/2026
The heroic @fhi-aims.bsky.social team - 25 contributing developers this time, including those at MS1P e.V., published a new stable release today, version 261002: fhi-aims.org This has a remarkable amount of new functionality, also speedups - really a great community! #compchemsky #chemsky
fhi-aims.org
FHI-aims
FHI-aims. All-electron electronic structure theory with numeric atom-centered orbitals.
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Xin@QuantumChem @xinquantum.bsky.social · 03/10/2026
Building catalytic surface using LightCone. Desktop version to be released with Direwolf (a quantum chemistry package). #compchemsky lightcone.quanta-bricks.com
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Avogadro Project @avogadro.cc · 01/10/2026
What's this? Avogadro2 in a web browser?! #compchem #opensource #prototype
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Henrique C. S. Junior @hcsj.bsky.social · 01/10/2026
Now even wrong. -- Wolfgang Pauli
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Michelle says: Be kind. Always. ❤️ @snarkysillysad.bsky.social · 29/09/2026
Cat can't be bothered by dog: #AGoodPlace Source: www.reddit.com/r/BeAmazed/s...
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Peter Kenny @pwk2024.bsky.social · 29/09/2026
Opportunities (2) for computational chemists at Johnson & Johnson (Beerse Belgium | Spring House PA USA | La Jolla CA USA) ref: R-100091 | closing: 11-Oct-2026 #CADD #CompChem #cheminformatics #ChemJobs #chemsky 🧪 jj.wd5.myworkdayjobs.com/JJ/job/Beers...
jj.wd5.myworkdayjobs.com
Senior Scientist, In Silico Discovery
At Johnson & Johnson, we believe health is everything. Our strength in healthcare innovation empowers us to build a world where complex diseases are prevented, treated, and cured, where treatments...
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Dan of the Year @downwithdan.bsky.social · 28/09/2026
Ah yes the circle of life
• Dispatched
Sep 25 23:03 pm
In Transit
Sep 26 09:52 am
Delayed
Sep 26 10:57 am
Held By Carrier
Sep 26 15:07 pm
Destroyed
Sep 26 15:08 pm
13998331644
Henrique C. S. Junior @hcsj.bsky.social · 27/09/2026
So sorry to read that. But I am sure it was a very good life at your side.
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Henrique C. S. Junior @hcsj.bsky.social · 22/09/2026
🧪 Looking for a free, open-source alternative to ChemDraw? Ketcher is browser-based, feature-rich, and surprisingly capable for 2D molecular and reaction drawing. 🔓 Open source 🌐 No installation Repo: github.com/epam/ketcher #ChemSky #ChemTalk
github.com
GitHub - epam/ketcher: Web-based molecule sketcher
Web-based molecule sketcher. Contribute to epam/ketcher development by creating an account on GitHub.
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Louise Dawe @louisedawe.bsky.social · 22/09/2026
Vote #Pyromorphite for #MinCup26! In their @actacrystb.iucr.org paper Hirano and Okudera explore the lead-phosphate apatite framework shared by pyromorphite, showing how its chloride channel is shaped by the surrounding structure and Pb²⁺ lone-pair e- density. journals.iucr.org/b/issues/202...
journals.iucr.org
Spatial distribution of 6s2 lone electron pair in Pb4Na(PO4)3 and stereochemical activity of the 6s2 electron cloud in lead-bearing apatites
In lacunary apatite structure-type Pb4Na(PO4)3, residual density attributable to the deformed 6s2 electron cloud is found in the vicinity of A2-site Pb2+ on regular A2 triangle normal to c. Systematic...
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Henrique C. S. Junior @hcsj.bsky.social · 20/09/2026
static.klipy.com
Shyboos the Dog's Adorable Smile
ALT: Shyboos the Dog's Adorable Smile
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Henrique C. S. Junior @hcsj.bsky.social · 18/09/2026
Now you are talking! Great news, guys!
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iChemLabs @ichemlabs.bsky.social · 15/09/2026
Happy to confirm we have not been absorbed, acquired, assimilated, or otherwise consumed. 😄 iChemLabs and ChemDoodle are still proudly independent, and we intend to remain that way.
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Henrique C. S. Junior @hcsj.bsky.social · 17/09/2026
I was deeply saddened to learn at the #BMIC conference of the recent passing of Prof. Dante Gatteschi. I never had the opportunity to meet him, but his books and papers were so important to my scientific journey that I always felt a personal connection (as I do with my scientific heroes). #chemsky
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Henrique C. S. Junior @hcsj.bsky.social · 13/09/2026
@bernadsz.bsky.social just did an amazing presentation about the new force field capabilities coming to #ORCA at #BMIC. I can't wait to try it.
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Mario Barbatti @mbarbatti.bsky.social · 10/09/2026
#VISTAtalks on #CompChem 🧪 Wed 16 Sep, 10:00 Buffalo / 16:00 Paris / 22:00 Beijing * Wang, Zhejiang Univ: Detailed complementary consistency in mixed QC NAMD * Bezabih, BGSU: Strain-driven photochemical reactivity of a small molecule quantum-dynamics-hub.github.io/VISTA/
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Henrique C. S. Junior @hcsj.bsky.social · 09/09/2026
Computational chemists seeing 1000 atoms
static.klipy.com
Pathetic Laser Eyes Meme
ALT: Pathetic Laser Eyes Meme
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Henrique C. S. Junior @hcsj.bsky.social · 05/09/2026
www.youtube.com/shorts/bhL87...
youtube.com
Moose Traffic 🫎🚙 #funnyshorts #humor #funnyvideo #animation #foryou
YouTube video by Cliff Benfield
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Henrique C. S. Junior @hcsj.bsky.social · 03/09/2026
Oh my god!.... 😮
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Henrique C. S. Junior @hcsj.bsky.social · 03/09/2026
So, are we getting GPU support soon? 😱
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FACCTs @faccts.de · 26/08/2026
#DFT2026 is in full swing! Come by and meet us, hear Benjamin Helmich-Paris talk on Excited-State Methods Based on State-Averaged CASSCF-DFT, and discuss Bernardo de Souza’s poster with him. Looking forward to more great conversations! #DFT #ORCA #FACCTs #CompChem #ChemSky
FACCTs at the DFT2026
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FACCTs @faccts.de · 24/08/2026
Skala, the machine-learned exchange-correlation functional from @msftresearch.bsky.social, is coming to #ORCA and will be part of the next release. Many thanks to the Microsoft team for their close support throughout the implementation. Stay tuned! www.faccts.de/orca #CompChem #ML #ChemSky #DFT
faccts.de
ORCA - FACCTs
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Volker Blum @aimsduke.bsky.social · 22/08/2026
@fhi-aims.bsky.social will be supporting the Skala machine-learned XC functional quite soon (for energies, initially). As for myself, and having had a very long run based on PBE and functionals built on it, I'll be curious to see how it does. www.microsoft.com/en-us/resear...
microsoft.com
Broadening access to Skala creates a faster path to predictive DFT
Skala 1.1, the updated deep-learning exchange-correlation functional from Microsoft Research, provides greater accuracy, expanded accessibility across the computational chemistry ecosystem, and a livi...
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FACCTs @faccts.de · 19/08/2026
We’re sponsoring and exhibiting at #DFT2026 in Donostia/San Sebastián! Come by to learn more about #ORCA and #OPI, and don’t miss Benjamin Helmich-Paris’ talk next Thursday at 12:20 on excited-state methods based on state-averaged CASSCF-DFT. #DFT2026 #CompChem #QuantumChem #Python #ChemSky
FACCTs at the DFT 2026
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Henrique C. S. Junior @hcsj.bsky.social · 18/08/2026
@vivaldi.com was my default browser for the last 2 or so years, and I love it. But I am coming back to #Firefox because I don't want to stop using uBlock Origin and because Vivaldi started to get too slow lately. Even the start panel is taking half a minute with the browser unresponsive.
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Henrique C. S. Junior @hcsj.bsky.social · 17/08/2026
Como eu odeio o período de eleições...
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FACCTs @faccts.de · 17/08/2026
ORCA is ready for agentic science! With machine-readable JSON output, the ORCA Python Interface (OPI), and extensive docs/tutorials, ORCA combines powerful quantum chemistry with the programmatic control needed for automated workflows and AI agents. #ORCA #QuantumChem #AgenticAI #ChemSky #Python
ORCA is ready for Agentic science!
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Henrique C. S. Junior @hcsj.bsky.social · 14/08/2026
Never in my life did I think I'd be going back to using #Firefox, but here I am... Just because I hate ads and refuse to go without a decent ad blocker.
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Henrique C. S. Junior @hcsj.bsky.social · 13/08/2026
Man, what the hell... People giving "my condolences" and "sorry for your loss" to a person that said their AI parter (gpt 5.2) is being terminated by openai. I guess humanity is done.
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Henrique C. S. Junior @hcsj.bsky.social · 12/08/2026
youtube.com/shorts/OjXT7...
youtube.com
POV: I Tried Selling Cheesecake to Leonardo DiCaprio 💀
YouTube video by Shawn@Edo Cheesecake
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Henrique C. S. Junior @hcsj.bsky.social · 10/08/2026
Maybe you could try the #astronomy feed to increase your chances
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Jonathan O'Callaghan @astrojonny.bsky.social · 10/08/2026
Hey science peeps, I'm looking to chat to an astronomer familiar with NASA's Swift telescope that could comment on what science the mission could still do if the boost is successful. If anyone is available let me know, jdaoca[at]gmail[dot]com Cheers!
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Henrique C. S. Junior @hcsj.bsky.social · 08/08/2026
What in the world is happening? I reviewed 7 abstracts for a conference and had to request 6 resubmits! Titles that have NOTHING to do with the abstract, unreadable figures, wrong formulas, Neural nets without a SINGLE architecture description... geez #chemchat
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Henrique C. S. Junior @hcsj.bsky.social · 08/08/2026
The catalysis homo lumo is pure gold 😂
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Henrique C. S. Junior @hcsj.bsky.social · 07/08/2026
Maybe let the students do short presentations on the topics, with explanations of the assignment. They can record the videos.
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Henrique C. S. Junior @hcsj.bsky.social · 07/08/2026
To be honest I hate LinkedIn. The amount of generic and motivational content is too much for me. Bluesky still seems to be the overall best place to connect with scientists. But the platform is not growing.
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Henrique C. S. Junior @hcsj.bsky.social · 05/08/2026
I don't drink. So much so that I don't even know if this is satire or not. www.youtube.com/shorts/7oC47...
youtube.com
That one whiskey mate
YouTube video by The Whiskey Boys
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Henrique C. S. Junior @hcsj.bsky.social · 05/08/2026
They REALLY want to sell you a 56 kbps internet connection with the best dial-up modem.
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Henrique C. S. Junior @hcsj.bsky.social · 05/08/2026
The rebel alliance that works with sodium.
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Safia | صفية @finetraces786.bsky.social · 04/08/2026
I saw it and so now you have to too. #ChemChat
The new American Chemical Society (ACS) logo (in 2026)Michael Scott (from The Office) making a cringe facial expression
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Henrique C. S. Junior @hcsj.bsky.social · 05/08/2026
#Codex at 2%
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Henrique C. S. Junior @hcsj.bsky.social · 05/08/2026
Computational chemistry is surprisingly humbling. When I started, everything made perfect sense. My arguments connected beautifully. And they were all wrong. It took me a while to climb past the first slope of the Dunning–Kruger curve. I still have no idea how many slopes there are. 😅
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Volker Blum @aimsduke.bsky.social · 04/08/2026
Density functional theory with a four-component treatment (no approximation to the spin-orbit coupling operator) extended to very large systems, an epic advance spearheaded by @wentao-zhang.bsky.social : arxiv.org/abs/2608.00773 #compchemsky @fhi-aims.bsky.social
arxiv.org
A Large-scale Parallel Implementation of Quasi-Four-Component Relativistic Density Functional Theory with Numeric Atom-centered Orbitals
We present a large-scale parallel implementation of fully relativistic density functional theory (DFT) for both molecules and periodic solids, using the quasi-four-component (Q4C) method and numeric a...
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Henrique C. S. Junior @hcsj.bsky.social · 04/08/2026
Just found some old posters archived here... good times. Almost 10 years ago. #chemchat
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Henrique C. S. Junior @hcsj.bsky.social · 02/08/2026
That is a remarkably specific and narrowly focused journal. At least it is not published by the “...and stuff” editorial board. Be careful, haha.
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Henrique C. S. Junior @hcsj.bsky.social · 01/08/2026
Just curious. Did you selected Julia due to its speed or any other factor? How is the experience so far? Because I use python, but always wondered about Julia or if the best approach for performance is to bet on tricks like Cython and others.
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Johannes Gierschner @gierschner.bsky.social · 01/08/2026
"61% of German PhD students considered discontinuing their PhD, citing mental health issues, poor supervision, and high workloads. Satisfaction with supervision correlated strongly with feedback quality, leadership, and communication skills." #ResearchIntegrity #Chemsky #CompChemSky #PiSky
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Henrique C. S. Junior @hcsj.bsky.social · 31/07/2026
#blues
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Aitomistic @aitomistic.com · 31/07/2026
MLatom is now Apache 2.0 — permissive, commercial-friendly, patent grant included, and the old citation clause is gone. One line on Python 3.9–3.11: pip install -U mlatom Source: github.com/dralgroup/mlatom Docs: aitomistic.com/mlatom #compchem #mlchem #opensource
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