In collaboration with Franziska Emmerling and Sebastian Riedel we report catalytic surface degradation of (CF2H)2O to CF3H at the Lewis superacid ACF-Si-teflate: doi.org/10.1039/d6dt... @daltontrans.rsc.org
Thomas Braun Group
@braungroup.bsky.social
Professor for inorganic chemistry at Humboldt-Universität zu Berlin @humboldtuni.bsky.social Fluorine Chemistry, Organometallic Chemistry, Homogeneous and Heterogeneous Catalysis For more information 👉🏼 https://www2.hu-berlin.de/chemie/braun/
Jesvita’s research on synthesising 1,2,3-triazole-bridged binuclear iridium pincer complexes and comparing their reactivities with monometallic analogues is now out in @pubs.acs.org! doi.org/10.1021/acs.... ✨
1,2,3-Triazole-Bridged Binuclear Iridium Pincer Complexes: Comparing Reactivities with Monometallic Analogues
Binuclear iridium–pincer complexes bearing metal centers with different coordination spheres could provide a promising platform for new reactivities and enable cooperative catalytic properties. Herein...
doi.org
Check out our latest work on Germylium Catalyzed Dehydrofluorination Reactions of Fluorinated Alkanes now out in @chemistryeurope.bsky.social: doi.org/10.1002/chem...
Germylium Catalyzed Dehydrofluorination Reactions of Fluorinated Alkanes
Dehydrofluorination reactions of fluorinated alkanes catalyzed by germylium ions are reported. Computational studies of the mechanism revealed an E2 type mechanism involving a germane as a base to fa...
doi.org
We're happy to share Minh‘s work on mechanochemical upcycling of polyvinylidene fluoride! Now out in ChemSusChem @chemistryeurope.bsky.social doi.org/10.1002/cssc...
Mechanochemical Upcycling of Polyvinylidene Fluoride: Lewis Acid Induced Generation of Sodium Aluminium Fluorides
A solvent-free mechanochemical process to upcycle PVDF waste into sodium aluminium fluorides, which are essential for aluminium production, was developed. By ball milling PVDF with AlCl3 and NaCl, th...
doi.org
Our work on the development of novel routes to access cyclobutadiene and cycloallyl Pt(II) complexes via dicationic bis(alkyne) species as intermediates is now out! doi.org/10.1002/chem... @chemistryeurope.bsky.social
Routes to Cyclobutadiene and Cycloallyl Pt(II) Complexes: Dicationic Bis(Alkyne) Species as Intermediates
This work demonstrates the synthesis of cationic Pt(II) η3-cycloallyl complexes, and experimental and computational studies show a ligand bite-angle dependence of their formation rates. The reactivit...
doi.org
We are so happy that Thomas received the ACS award for creative work in fluorine chemistry 🏆 Cheers to him for this very well-deserved prize 🥳 The Brownies are proud of him ☺️ @acs.org #Fluorine #Award #ACSSpring2026
Happy to report Jesvitas work on Iridium Complexes of a Triazole-Derived Pincer Ligand for transfer dehydrogenation catalysis in @chemistryeurope.bsky.social: doi.org/10.1002/chem...
Iridium Complexes of a Triazole‐Derived Pincer Ligand: Synthesis, Reactivity, and Transfer Dehydrogenation Catalysis
Ir pincer complexes bearing a triazole architecture in the pincer backbone and O-ancillary chelating ligands are presented. These were employed in the catalytic transfer dehydrogenation of alkanes as....
doi.org
The woman in our group celebrated this years Global Woman’s Breakfast in Berlin #gwb2026 ✨ Many thanks to the speakers and @chemistryeurope.bsky.social and @angewandtechemie.bsky.social for putting on this event!
Happy to see our work on Pt-catalysed hydrofluorination of alkynes at room temperature (doi.org/10.1002/anie...) being highlighted in this years ‘Trendberichte Anorganische Chemie 2026’ of the @gdch.de by @hadlingtongroup.bsky.social and Gabriele Hierlmeier: doi.org/10.1002/nadc...
Trendbericht Anorganische Chemie 2026: Nebengruppen‐ und Koordinationschemie
Im Jahr 2025 waren aller guten Dinge der Hauptgruppenchemie drei: ein dreifach geladenes Triborattrianion, ein Molekül mit linearer Al3-Einheit, das dritte Erdalkalimetall, das Stickstoff bindet, ein...
doi.org
Happy to share our work on activation derivatisation of PMVE by a Rh(I) Germyl complex published in #EurJIC @chemistryeurope.bsky.social doi.org/10.1002/ejic... Congrats to Soodeh!
Activation and Derivatization of Perfluoro(methyl Vinyl Ether) by a Rh(I) Germyl Complex
Treatment of the rhodium (I) germyl complex [Rh(GePh3)(PEt3)3] with perfluoro(methyl vinyl ether) [PMVE] resulted in C<span class='icomoon'></span>O and C<span class='icomoon'></span>F bond cleavage and decarbonylation reactions, to yield trans-[Rh(CFCF2...
doi.org
Gusteau said “Anyone can cook!” — we say “Anyone can do arylxenonium!” 👨🍳🧪 Our general approach for the synthesis of arylxenonium(II) salts hits the front cover of Inorganic Chemistry! Cover cooked to perfection by Miriam. #Ratatouille #MyACSCover @pubs.acs.org Paper: pubs.acs.org/doi/10.1021/...
Check out our latest work on C-F and C-H bond activation reactions of fluorinated molecules at rhodium pincer complexes: #ZAAC doi.org/10.1002/zaac...
CF and CH Bond Activation Reactions of Fluorinated Molecules at Rhodium Pincer Complexes
Hydrido Rh pincer complexes showed C–F bond activation reactivity with a selectivity at the para position of pentafluoropyridine and octafluorotoluene. The C–H bond activation capability was unleashe...
doi.org
We’re very proud of Einar, Clara and Jakob who defended their bachelor thesis very successfully. Congratulations to all of you 🥳👏🏼
Celebration day for #TeamXenon!! Our first paper is out in Inorganic Chemistry! Check our general and accesible approach for the synthesis of arylxenonium(II) salts. Congratulations to Pablo and all the team for the amazing work! @pubs.acs.org @humboldtuni.bsky.social pubs.acs.org/doi/10.1021/...
A General Approach for the Synthesis of Arylxenonium(II) Tetrafluoroborates
Arylxenonium(II) salts are the most numerous group of organoxenon compounds, i.e., those containing Xe–C bonds, and must be prepared by different routes that lack universality. Here, we present a general synthetic approach to arylxenonium(II) tetrafluoroborates [RXe][BF4] containing different degrees of fluorination at the aryl group R via processes that do not require the use of reactive gases or special equipment. The new synthetic access relies on the generation of aryldifluoroboranes RBF2 in dichloromethane solution by means of the reaction of K[RBF3] and BF3·OEt2, which are then transformed in a subsequent step to [RXe][BF4] salts. This route is not only more accessible than previously existing methods but also yields arylxenonium(II) tetrafluoroborates in higher yield and purity. Nevertheless, for highly acidic aryldifluoroborane species, namely those with R = C6F5, C6HF4, coordination of diethyl ether to the boron center prevents the transfer of the R group to the xenon atom. In these cases, a one-pot procedure starting from BR3, XeF2 and BF3·OEt2 enables their easy synthesis, including that of the novel compound [(2,3,5,6-C6HF4)Xe][BF4]. By means of the analysis of 11B NMR spectra of the aryldifluoroborane mixtures and theoretical calculations, the design of new organoxenonium(II) tetrafluoroborates through one route or the other can be tackled.
pubs.acs.org
We're happy to share Amin’s work on a sequential one-pot N-alkylation and aminocarbonylation of primary amines catalysed by heterobimetallic Ir/Pd complexes in cooperation with Michael Roemelt. Now out in @chemicalscience.rsc.org doi.org/10.1039/d5sc...
Sequential One-Pot N-Alkylation and Aminocarbonylation of Primary Amines Catalyzed by Heterobimetallic Ir/Pd Complexes
The paper introduces bimetallic Ir/Pd complexes as catalysts to initiate an N-methylation coupled with an aminocarbonylation in a one-pot approach, in order to advance the field of carboxyamide synthe...
doi.org
Brownies summer trip 2025 ☀️ - we had an amazing day visiting the Stasi museum followed by a lake hike. Our trip ended in a beer garden 🍺 Kudos to Marvin for organising the trip! 🥾 @albertpebi.bsky.social
We had a great time at the company relay race 13. Adlershofer Firmenstaffel 💪🏼 our three teams did a great job 🏃🏻♀️🏃🏻 #Brownies #FastAndFluorous #FlyingFluorines 🏆
Our work on Lewis-acid induced mechanochemical degradation of polyvinylidene fluoride being transformed into valuable products is now out in @chemicalscience.rsc.org w/ @franemmerling.bsky.social & Kannan Balasubramanian: pubs.rsc.org/en/content/a... @humboldtuni.bsky.social @bamresearch.bsky.social
Lewis-acid induced mechanochemical degradation of polyvinylidene fluoride: transformation into valuable products
Polyvinylidene fluoride (–[CH2CF2]n–, PVDF) waste poses significant environmental challenges due to its recalcitrant nature and widespread use. This study addresses the end-of-life management of PVDF ...
pubs.rsc.org
We had a great time at the #esfc2025 in Lisbon 🇵🇹 Congratulations to Julie for receiving the first place poster prize 🥳 Thanks to Ana and João for organising such a great event
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!
Liza‘s research on the activation of SOF2 at Rh pincer complexes is now out in @chemistryeurope.bsky.social: doi.org/10.1002/ceur... ✨
Activation of SOF2 at Rh Pincer Complexes: Ligand Backbone Versus Metal Centred Reactivity
Deprotonated Rh pincer complexes reveals a dual reactivity due to S─F bond activation of SOF2: ligand backbone versus metal centered activation. Ligand supported activation generates a backbone bound....
doi.org
Congratulations to our colleague Philipp Adelhelm @humboldtuni for receiving the Berlin Science Award! Well deserved 👍👏🏻
Ouchan‘s work on a Pt-catalysed hydrofluorination system at room temperature promoted by BF3, PF5 and HF as fluoride shuttles is now out in @angewandtechemie.bsky.social 🚀 With detailed DFT calculations in cooperation with Martin Kaupp! doi.org/10.1002/anie... #SFB1349 @humboldtuni.bsky.social
Platinum‐Catalysed Hydrofluorination of Alkynes at Room Temperature Promoted by a Fluoride Shuttle
This work presents an air and moisture tolerant platinum-catalysed hydrofluorination system that gives selectively (Z)-fluoroalkenes. Experimental and computational investigation on the mechanism all...
doi.org
PhD POSITION OPEN! We are looking for someone enthusiastic to join our team at @humboldtuni.bsky.social! If you want to work in the frontier between noble gas chemistry and organometallic fluorine chemistry, this is for you! #TeamXenon Info here: haushalt-und-personal.hu-berlin.de/de/personal/...
We were very excited to have Prof. Vincenzo Busico from the university of Naples as guest lecturer last week @humboldtuni.bsky.social ! Thanks for giving us a great insight into an integrated high throughput experimentation/AI approach to model molecular organometallic catalysts
Let’s celebrate 25 years Long Night of Science ✨Join us at the „Mit-Mach-Labor“ at the #LNDW2025 on the 28th June 2025 starting at 5pm in Adlershof ✨👩🏻🔬👨🏻🔬 for more details 👉🏼 www.langenachtderwissenschaften.de/programm/det... Get your anniversary ticket here 👉🏼 lndw-tickets.reservix.de/tickets-die-...
Herzlichen Glückwunsch! 🎉 Der HU-Nachwuchswissenschaftler Alberto Pérez-Bitrián erhält die Emmy Noether-Förderung der @dfg.de. Die Forschungsgruppe @perezbitrianlab.bsky.social untersucht Eigenschaften und Reaktionsfreudigkeit von Xenonverbindungen. Mehr Infos: 👉 www.hu-berlin.de/de/pr/nachri...
We're happy to share the work on activation of perfluoro(methyl vinyl ether) at Rh(I) complexes by Soodeh. Now out in @chemicalscience.rsc.org: pubs.rsc.org/en/content/a...
Activation of Perfluoro(methyl vinyl ether) at Rh(I) Complexes: Metal-Centered Versus Phosphine-Mediated Decarbonylation - Chemical Science (RSC Publishing) DOI:10.1039/D5SC02056E
pubs.rsc.org
„Fluor-Mauer“ überwunden: Forschende beobachten erstmals Tunneleffekt bei schweren Atomen. Mit quantenchemischen Simulationen wurde nachgewiesen, dass auch Fluoratome zwischen zwei Zuständen wechseln können. @riedellab.bsky.social @cnrs.fr 👉 www.fu-berlin.de/xd9k1v3
Congratulations to the newly minted Dr. Christian Heinekamp @cheinekamp.bsky.social who defended his thesis successfully yesterday! 🥳 We wish you all the best at Dr. Heinekamp laboratory and institute planning! @franemmerling.bsky.social