Long-lived room temperature phosphorescence in aqueous micellar systems: application in cyclobutane synthesis The micelle-induced excimer formation of simple chalcone is investigated. An extraordinarily long-lived NIR-emission displaying an average lifetime of 19.22 μs was recorded. The emission was induced b...

Happy to share our new collaborative work with the group of Line Dahl Muradi/Næsborg @supraphoto-lab.bsky.social on #photocatalysis in #micelles.
We investigated the synthetic pathway and an unexpected and extremely interesting photophysical behaviour.
pubs.rsc.org/en/content/a...

Triplet state reactivity and long-lived room temperature phosphorescence of chalcones enabled by micelles Cheap SDS micelles are used to facilitate long-lived room temperature phosphorescence and [2+2] photocycloadditions of chalcone by enabling excited-state aggregate formation. Within the micellar envir...

Extremely happy to share our work on micelle mediated photochemical reactions of chalcones. By Julian and Gianna and in collaboration with Fabio!

Triplet state reactivity and long-lived room temperature phosphorescence of chalcones enabled by micelles | ChemRxiv - doi.org/10.26434/che...

Congratulations!

Wenheng and Rubis cover is online. 💡 The colour formation originating from the EDA-complex formation is depicted.

doi.org/10.1039/D4GC...

Making Mo(0) a Competitive Alternative to Ir(III) in Phosphors and Photocatalysts

Just published in the Journal of the Americal Chemical Society

pubs.acs.org/doi/10.1021/...

Excited Organic Radicals in Photoredox Catalysis Many important synthetic-oriented works have proposed excited organic radicals as photoactive species, yet mechanistic studies raised doubts about whether they can truly function as photocatalysts. This skepticism originates from the formation of (photo)redox-active degradation products and the picosecond decay of electronically excited radicals, which is considered too short for diffusion-based photoinduced electron transfer reactions. From this perspective, we analyze important synthetic transformations where organic radicals have been proposed as photocatalysts, comparing their theoretical maximum excited state potentials with the potentials required for the observed photocatalytic reactivity. We summarize mechanistic studies of structurally similar photocatalysts indicating different reaction pathways for some catalytic systems, addressing cases where the proposed radical photocatalysts exceed their theoretical maximum reactivity. Additionally, we perform a kinetic analysis to explain the photoinduced electron transfer observed in excited radicals on subpicosecond time scales. We further rationalize the potential anti-Kasha reactivity from higher excited states with femtosecond lifetimes, highlighting how future photocatalysis advancements could unlock new photochemical pathways.

Excited organic radicals in photoredox catalysis

Our perspective just published in JACS Au:

pubs.acs.org/doi/10.1021/...

@synthesis1969.bsky.social

EDA complexation of two donor molecules initiating radical cation cyclizations Thieme E-Books & E-Journals

www.thieme-connect.com/products/ejo...
Check out how our team realized the mechanism with no apparent absorption in the "normal" UV-vis spectrum. Spearheaded by Julian and Martin!

Methyl viologen was the star of our Christmas tree this year🥳👏🏽

doi.org/10.1039/D4GC...

👏🏽🥳

By Rubi and Wenheng! Our first adventure with Methyl viologen.

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

Hexafluorophosphate‐Triggered Hydrogen Isotope Exchange (HIE) in Fluorinated Environments: A Platform for the Deuteration of Aromatic Compounds via Strong Bond Activation There is a perpetual need for efficient and mild methods to integrate deuterium atoms into carbon frameworks through late-stage modifications. We have developed a simple and highly effective syntheti...

There is nothing better for the 1st post than announcing the latest paper! 📢Check out our work in Angew. Chem. on hydrogen atom transfer in microstructured solutions! Special thanks go to Yang, Jonny & Martin from @biomicat.bsky.social and the Tonner-Zech and Asmis group 🎉
doi.org/10.1002/anie...