Alright, one more paper on @chemrxiv.org from the illustrious Rachel Weiss! We've gotten good at doing variable temperature ultrafast spectroscopy in the solution state while keeping everything nice and air-free, so take a look on what we've uncovered about FeCl4-! chemrxiv.org/doi/abs/10.2...

This might just be me but…isn’t this title phrasing a bit clickbait-y? It reminds me of the old Chobani “chemical free” yogurt marketing…not typical C&EN messaging? Of course the article text clarifies, but who reads the text when they can read the title and share mindlessly on social media?

C&EN (Chemical & Engineering News)@cenmag.bsky.social · 2mo ago

A study has found widespread exposure to 10 common classes of chemicals among pregnant people in the US. #chemsky 🧪

Our new paper is up on @chemrxiv.org! If you’re interested in high valent titanium photochemistry, look no further! We seek to clarify how light induced bond homolysis in titanium complexes changes when you go to heteroleptic complexes. Spoiler alert, alot changes! chemrxiv.org/doi/full/10....

ACS Spring 2026 is just around the corner, and Qilei, Miguel, and I have the pleasure of organizing a joint symposium between PHYS, INOR, and ORGN on Mechanisms of Photoredox Catalysis. The abstract submission deadline is Sept. 29th, and we hope to see y'all there!

The abstract submission deadline for our symposium is TODAY! Submit your abstract at sermacs-swrm2025.abstractcentral.com/submission before it’s too late; I hope to see you all in sunny Orlando this October!

Bryan Kudisch@bkudisch.bsky.social · last yr.

Mark your calendars: NSUNS is hosting its third "Ultrafast and Nonlinear Spectroscopy" symposium at the joint SERMACS/SWRM this October! Abstract submission opens Monday, April 21st. We hope to see you there!

Woo we’re big fans of iron LMCT photocatalysts, too!

Chemistry World@chemistryworld.com · last yr.

By bubbling simple alkane gas through a liquid phase containing heterocycle substrates and an iron catalyst, and then irradiating, pharmaceutical heterocycles can be alkylated in a scalable way that could transform drug discovery. #ChemSky

I’m excited to share my lab’s first research article! LMCT photocatalysts are interesting and poorly understood chromophores. We dive into their photophysics to see what limits their photoreactivity, finding an unusual and pervasive competing pathway to homolysis! chemrxiv.org/engage/chemr...

Ultrafast nonradiative relaxation limits the efficiency of photoinduced bond homolysis in molecular LMCT photocatalysts

Ligand-to-metal charge transfer photocatalysts (LMCT PCs) are being increasingly implemented towards construction and functionalization of organic molecules. Leveraging photoinduced metal-ligand bond ...

chemrxiv.org

don’t worry everyone, #chemsky can be perfect so long as we all get along. first things first, I have a question, and then a quick comment (chemsky needs more memes and less journals, you heard it here first)

Chemjobber@chemjobber.bsky.social · last yr.

don’t worry everyone, #chemsky can be perfect so long as we all get along. first things first, we simply need to get Singleton over here (really, we do)

In case anyone is interested for future reference, I was sent this google doc with a copy of the Q&A part of the NSF CAREER Webinar today. I think the webinar will be public but not sure about the in text Q&A. It was definitely a strange one... #chemsky docs.google.com/document/d/e...

Abstract submission for our SERMACS/SWERM 2025 symposium on Ultrafast and Nonlinear Spectroscopy is open! Paul, Sean and I have worked hard to get an exciting lineup of invited speakers on our list this year, and we're looking forward to choosing additional presenters from the abstracts!

Bryan Kudisch@bkudisch.bsky.social · last yr.

Mark your calendars: NSUNS is hosting its third "Ultrafast and Nonlinear Spectroscopy" symposium at the joint SERMACS/SWRM this October! Abstract submission opens Monday, April 21st. We hope to see you there!

Mark your calendars: NSUNS is hosting its third "Ultrafast and Nonlinear Spectroscopy" symposium at the joint SERMACS/SWRM this October! Abstract submission opens Monday, April 21st. We hope to see you there!

Thankfully my group, my close contacts at FSU, and I were not harmed in the shooting at FSU today. A sincere thank you to everyone who checked in today; it really means a lot.

Approx. 5 bullets on what I did this past week: - electron transfer - energy transfer - intersystem crossing - internal conversion - photoluminescence

Chemjobber@chemjobber.bsky.social · last yr.

Approx. 5 bullets on what I did this past week: - singlet or triplet state - C-H insertion - cyclopropanation - ylide formation - Wolff rearrangement

We're ecstatic to have collaborated with our former colleagues at Princeton to write this review (a @kudischlab.bsky.social first!) on the ultrafast spectroscopy and dynamics of photoredox catalysis. I hope you'll enjoy this *light* reading in these dark times. www.annualreviews.org/content/jour...

a cat is sitting under a lamp and looking at the camera .

ALT: a cat is sitting under a lamp and looking at the camera .

media.tenor.com

It’s hard to tell when @kudischlab.bsky.social is in its last day at the @nationalmaglab.bsky.social, but if you look closely there are signs…

Visiting weekend AND magnet time? Enough to make our heads *spin* 😎. We just finished building the setup around this 25 T magnet and are nearly ready for testing at field! Hope those of you in town have time to meet with the Kudisch Lab as they bounce between campus and the Maglab! #chemsky

Come on Tallahassee, get it together this isn’t like you

Went further down the rabbit hole following the Red #3 banning, and now a challenge to #Chemsky: can you match the molecular structure of the food dye to its implementation? Let's see the photochemists (or more realistically the food chemists) flex their absorption spectrum muscles! No cheating!

Had fun going down the rabbit hole of finding out that Red Dye No. 3 is this fluorescein-looking derivative; now I want to dissolve Hot Cheetos in acetone and see if it fluoresces red. Also, lots of claims that it is synthesized from petroleum? Thoughts #chemsky? www.nbcnews.com/health/healt...

Got my #acsprf swag today! Really thankful again for the support of the @kudischlab.bsky.social's LMCT mechanistic project, but I'd be lying if I said I wasn't also super pumped to make my first batch of PRF-pastries (or maybe just pancakes) with these monogrammed bad boys! #chemsky

Lesson for the spectroscopists on #chemsky, especially the ones with a certain brand of commercial transient absorption spectrometer: don't trust the depolarizers. Set up magic angle the hard way every time, but be careful; magic angle isn't the same setting for different wavelengths!

a screen shot of a movie called black monday showing a man in a suit

Alt: A guy in a suit saying "how about those optics"

media.tenor.com

Me to student: Have you decided on what paper you're doing your lit presentation on? Student: Sends link: journals.sagepub.com/doi/abs/10.1... Me: Maybe with ultrafast in it to get you some practice thinking about how others collect and analyze their data? Student: Please don't click that link.

Sage Journals: Discover world-class research

Subscription and open access journals from Sage, the world's leading independent academic publisher.

journals.sagepub.com

Dang the default alt-text on this gif is definitely burying the lede... Also definitely the most "meta" alt-text that I've ever written for a picture? #chemsky

Alright since a critical mass of photochemists officially joined it was about time to try and make a photochemistry/spectroscopy starter pack; hopefully this is a good start, feel free to reach out to be added! #chemsky go.bsky.app/Cyibs8f

This text from my opportunistic, lawyer brother today earns the honor of being my first bluesky post. #chemsky