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labheinze.bsky.social
Katja Heinze's research group University of Mainz
@labheinze.bsky.social
820 followers 260 following 22 posts
loves transition metal complexes: photophys | photochem | redox | catalysis | spectroscopy | sustainable chemistry | unsolved problems @uni_mainz
www.ak-heinze.chemie.uni-mainz.de
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Reposted by Katja Heinze's research group University of Mainz
ckerzig.bsky.social
The first online symposium organized by the @gdch.de Division of Photochemistry will take place next week (Nov. 5, 2025, 3 pm CET zone).
tu-braunschweig.webex.com/tu-braunschw...
key: Photo2025
5 talks by talented students (one will be awarded🎉) followed by a plenary lecture. Save the date. ✍️
October 28, 2025 at 7:57 AM
Reposted by Katja Heinze's research group University of Mainz
cwegeberg.bsky.social
Super excited to see our work monitoring dynamics of the charge separated pair in a photocycle driven by a 2LMCT exited state now out in @chemicalscience.rsc.org ! ⚡️

Thanks for the great team efforts🌟

pubs.rsc.org/en/content/a...
Captivating bimolecular photoredox dynamics of a ligand-to-metal charge transfer complex
Transition metal complexes featuring ligand-to-metal charge transfer (LMCT) excited states have been identified as promising candidates for driving electron transfer processes. To obtain an efficient ...
pubs.rsc.org
October 20, 2025 at 2:30 PM
Reposted by Katja Heinze's research group University of Mainz
bjoernpfund.bsky.social
Exploring metal-centered photoredox reactivity? 🚀Don’t forget to look at the spin-state landscape and the role of reorganisation energy, they can make a difference 😉

Huge thanks to Bekah for leading the experiments and shaping the story🥳 a true collaborative effort!😃

pubs.acs.org/doi/10.1021/...
Spin-State and Reorganization Energy Considerations for Metal-Centered Photoredox Catalysis
Transition-metal complexes featuring metal-centered excited states have recently emerged as mechanistically distinct platforms for selective photochemistry, including photoredox catalysis. Among these...
pubs.acs.org
October 16, 2025 at 3:58 PM
Reposted by Katja Heinze's research group University of Mainz
chemistryviews.bsky.social
Katja Heinze, Robert Naumann, and Steven Sittel (Mainz) synthesized a series of chromium(III) chromophores with identical optical properties but systematically tunable redox behavior to study photoredox mechanisms
www.chemistryviews.org/independent-...
Design of Chromium(III) Chromophores with Independent Control of Redox and Optical Properties - ChemistryViews
Katja Heinze and Robert Naumann, Mainz, synthesized a series of chromium(III) chromophores with identical optical properties but systematically tunable redox behavior to study photoredox mechanisms
www.chemistryviews.org
October 9, 2025 at 6:41 AM
Reposted by Katja Heinze's research group University of Mainz
moth-poulsen.bsky.social
Excited to share the publication of “Enhancing the Statistical Probability Factor in Triplet-Triplet Annihilation Photon Upconversion via TIPS Functionalization” in @chemicalscience.rsc.org

pubs.rsc.org/en/content/a...
October 7, 2025 at 8:44 AM
Reposted by Katja Heinze's research group University of Mainz
herreslab.bsky.social
Very happy about this first #catalaix publication for us, supported by the Werner Siemens-Stiftung ! #bioplastics #circulareconomy
We also make the data openly available at @radar-service.bsky.social : radar4chem.radar-service.eu/radar/en/dat...
Thank you to @nfdi4chem.de !
chemicalscience.rsc.org Chemical Science @chemicalscience.rsc.org · Oct 5
New in Chemical Science!

"Depolymerization of PLA Catalyzed by Guanidine-Modified Microgels" by Andrij Pich and Sonja Herres-Pawlis et al. from RWTH Aachen University and Maastricht University. @herreslab.bsky.social

Read it for free: doi.org/10.1039/D5SC...
A pile of blue and yellow polylactide fibres on a surface. A box zooms into a section and shows a scheme for the depolymerisation of polylactide in methanol with a guanidine-modified microgel catalyst.
October 5, 2025 at 8:08 PM
Reposted by Katja Heinze's research group University of Mainz
bhkenlo.bsky.social
Thermally Activated and Nonactivated Excited State Decay of [Cr(dgpy)2]3+ | Inorganic Chemistry pubs.acs.org/doi/10.1021/... @LabHeinze and co-workers @InorgChem #chromium #aliphatic #guanidines #thermally_activated_nonactivated #EnT #bISC #spin_flip #VibrationalOvertones #NIR
October 4, 2025 at 4:46 AM
Reposted by Katja Heinze's research group University of Mainz
gdch.de
Die GDCh schließt sich dem Klimaaufruf von DPG und DMG an:
gdch.app/article/gdch...
GDCh schließt sich Klimaaufruf von DMG und DPG an.
Die Gesellschaft Deutscher Chemiker (GDCh) schließt sich dem gemeinsamen Aufruf der Deutschen Meteorologischen Gesellschaft (DMG) und der Deutschen Physikalischen Gesellschaft (DPG) an. „Globale Erwär...
gdch.app
October 2, 2025 at 12:50 PM
Reposted by Katja Heinze's research group University of Mainz
pinkowiczgroup.bsky.social
So happy this piece is finally out! A tremendous collaborative effort of colleagues and friends from 8 institutions all over Europe. Thank you! doi.org/10.1038/s414...
Photochemistry and photophysics in a single crystal @jagiellonskiuni.bsky.social @cleracr.bsky.social @natcomms.nature.com
September 29, 2025 at 11:52 PM
Reposted by Katja Heinze's research group University of Mainz
agvsl.bsky.social
We are looking for postdoctoral candidates in the areas of organic electronics, operando spectroscopy in catalysis, advanced EPR. CV and cover letter to slageren@ipc.uni-stuttgart.de, stating what complementary expertise you bring and why our group interests you.
September 26, 2025 at 3:11 PM
Reposted by Katja Heinze's research group University of Mainz
cenmag.bsky.social
Researchers at Johannes Gutenberg University Mainz report a manganese complex that stays energized for 190 ns after absorbing light—a record for low-cost abundant metals. cen.acs.org/materials/in... #chemsky 🧪
Manganese edges into the realm of noble-metal photochemistry
Pairing manganese with an off-the-shelf ligand yields a low-cost complex that mimics precious-metal photocatalysts
cen.acs.org
September 10, 2025 at 3:17 PM
Reposted by Katja Heinze's research group University of Mainz
mainzuniversity.bsky.social
Common metal, unusual power: New manganese(I) complex breaks lifetime record for excited states / Combination of a #manganese salt and a ligand paves the way for future large-scale applications of #photochemistry 👉 press.uni-mainz.de/common-metal...

#SustainableChemistry #SusInnoScience
The figure shows the molecular structure of the manganese complex (center), a cuvette containing a solution of the purple manganese complex (top left), the absorption spectrum of the complex, which explains its high color intensity (purple), and the luminescence spectrum of the complex, which was used to measure its long lifetime (green). (ill./©: Katja Heinze)
August 27, 2025 at 12:42 PM
labheinze.bsky.social
From sub-picoseconds to 190 nanoseconds! Replacing #iron (II) by #manganese (I) gives record excited state lifetime. The paper in @natcomms.nature.com ‬reports #coherence, #photoluminescence and excited state #electrontransfer. #earth-abundant metal plus simple #carbene #ligand. rdcu.be/eBWsL
synthesis, absorption and emission spectrum, photoluminescence decay of a manganese(I) complex
August 25, 2025 at 8:41 AM
Reposted by Katja Heinze's research group University of Mainz
christianlimberg.bsky.social
O2 activation at biomimetic Fe complexes/first O2-dioxygenation mediated by a Co center. onlinelibrary.wiley.com/doi/10.1002/... Great work by Kilian! Thx also to the de Visser group for fruitful collaboration, @dfg.de for funding within the research group “BioOxCat” and @humboldtuni.bsky.social
Promiscuity in Molecular Mimics of the Cysteine Dioxygenase: Effects of Selenium in the Substrate and Cobalt as the Central Metal Ion
A biomimetic model for the cysteine dioxygenase (CDO) was found to be also capable of selectively dioxygenating selenocysteamine, suggesting that the lack of reactivity found for the CDO in combinati....
onlinelibrary.wiley.com
August 22, 2025 at 10:52 AM
Reposted by Katja Heinze's research group University of Mainz
cadralab.bsky.social
Beautiful work!!
Using fsTA, we discovered that charge separation mediates Energy Transfer in the long-lived⏳ iron complex-anthracene dyad designed and synthesized by Felix Glaser & @ludotroian.bsky.social - just published in ACS Central Science @pubs.acs.org 🥳

t.co/14xmp6kvHS
https://pubs.acs.org/doi/10.1021/acscentsci.5c01040
t.co
August 15, 2025 at 7:34 PM
Reposted by Katja Heinze's research group University of Mainz
waltherlab.bsky.social
Become my colleague!!! We are recruiting in a junior faculty level. Junior Professor for Theoretical Chemistry of Macromolecular and Supramolecular Systems
#simulations #theory #noneqsys #assistantprofessor #chemjob
Thank you for sharing this.

berufungsportal.uni-mainz.de/ausschreibun...
August 14, 2025 at 6:19 AM
Reposted by Katja Heinze's research group University of Mainz
christianlimberg.bsky.social
1 week left to apply for a PhD position, 4 y. with 2/3 of E 13 TV-L salary, assigned broadly to the design and synthesis of coordination compds for the activation of small molecules (www.chemie.hu-berlin.de/aglimberg/st...). Pls apply directly to christian.limberg@chemie.hu-berlin.de. Pls retweet!
August 14, 2025 at 6:50 AM
labheinze.bsky.social
Brilliant study of using high energy excited states as reactants by Björn Pfund and Oliver Wenger! Speed up k(ET) over k(IC) is the key - explained by Marcus theory. Congratulations!
July 24, 2025 at 12:22 PM
labheinze.bsky.social
Did you know that #stannylenes can shine orange and green?
Philipp elucidated the mechanism of the dual #emission, the #excited state #dynamics, #excimer formation and light-induced bond #homolysis. #Maingroup #tin #photophysics #photochemistry onlinelibrary.wiley.com/doi/10.1002/anie.202510044
July 22, 2025 at 9:03 AM
Reposted by Katja Heinze's research group University of Mainz
dfg.de
Förderentscheidungen zu #Forschungsgruppen durch den Hauptausschuss der DFG im Rahmen der Jahresversammlung: 7 Neueinrichtungen, 3 Verlängerungen. Die neuen Forschungsgruppen erhalten insges. rund 33 Mio. € für die erste Förderperiode. Mehr zu den Themen / Institutionen: www.dfg.de/de/service/p...
Die DFG richtet 7 neue Forschungsgruppen ein Das Fördervolumen für die Neueinrichtungen beträgt insgesamt 33,4 Mio. Euro für die erste Förderperiode inkl. je 22 % Programmpauschale für indirekte Projektausgaben. 3 Forschungsgruppen werden um eine weitere Förderperiode von vier Jahren verlängert.
July 2, 2025 at 1:06 PM
Reposted by Katja Heinze's research group University of Mainz
ckerzig.bsky.social
The next masterpiece from Matthias focusing on Coulombic dyads as new #photocatalyst class has been accepted in ACIE. Higher quantum yields in red-light catalysis by adding an inexpensive salt to use #Os as efficiently as possible. onlinelibrary.wiley.com/doi/10.1002/... @labheinze.bsky.social
June 24, 2025 at 6:41 PM
Reposted by Katja Heinze's research group University of Mainz
ksenia-glusac.bsky.social
This is a clever way to distinguish PCET from PT/ET pathways: using pressure.

ET/PT mechanisms lead to larger volume changes due to solvation of charged species.

@guldi-group.bsky.social @natchem.nature.com

rdcu.be/etauw
High-pressure pump–probe experiments reveal the mechanism of excited-state proton-coupled electron transfer and a shift from stepwise to concerted pathways
Nature Chemistry - Chemical energy conversion and storage rely on the selective movement of protons and electrons, thus understanding these processes is important for applications. Now experiments...
rdcu.be
June 24, 2025 at 10:20 AM
Reposted by Katja Heinze's research group University of Mainz
unimainz.bsky.social
Gewinn für #SusInnoSience: Mainzer Chemikerin Katja Heinze wurde durch @humboldt-foundation.de zum "Scout" ernannt und kann nun bis zu 3 exzellente Forschende in frühen Karrierephasen für ein Stipendium der Stiftung vorschlagen und an die #UniMainz einladen 👉 presse.uni-mainz.de/alexander-vo...
Prof. Dr. Katja Heinze, Professorin im Department Chemie der Johannes Gutenberg-Universität Mainz (Foto/©: Eric Lichtenscheid)
May 28, 2025 at 3:25 PM
Reposted by Katja Heinze's research group University of Mainz
gdch.de
GDCh unterzeichnet die Stockholm Declaration on Chemistry for the Future: gdch.app/article/gdch...
June 3, 2025 at 8:09 AM
labheinze.bsky.social
Long-lived #excited states with non-precious transition metals? Check Alexandra’s paper on a polypyridine #vanadium complex. #luminescence and #photocatalysis in #water published in @jacs.acspublications.org
pubs.acs.org/doi/10.1021/jacs.5c04471 #ChemSky
A Near-Infrared-II Luminescent and Photoactive Vanadium(II) Complex with a 760 ns Excited State Lifetime
Ruthenium and iridium are key components in the most important applications of photoactive complexes, namely, light-emitting devices, photocatalysis, bioimaging, biosensing, and photodynamic therapy. ...
pubs.acs.org
June 4, 2025 at 5:10 PM