Breher Research Group

Isolation of a Monomeric Bis(pyridylimino) Isoindolide (BPI) Radical Dianion and Further Insights Into Structures of Reduced BPI Compounds This article reports on the isolation of a monomeric compound with a dianionic singly reduced bis(pyridylimino) isoindolide (BPI) ligand and elaborated discussions on the structure of reduced BPIs.

Are you interested in radical #chemistry or redox-active ligands?

New work by @brehergroup.bsky.social about the isolation of a stable radical dianion is now in early view @helvchimacta.bsky.social as part of a special issue dedicated to Prof. Dr. Armido Studer.

#chemsky

doi.org/10.1002/hlca...

An illustration of a man riding a bike surrounded by wheels and other bike parts, with text: How a Ph.D. is like riding a bike

"For half an hour, I vented everything I had been holding in for months … my supervisor … then calmly offered a line I’ll never forget: 'You are here to learn to ride a bicycle, not to invent a bicycle.' That one sentence landed softly, but it cracked something open." https://scim.ag/4lt1Ru0

Very nice group excursion of the Hinz and Breher lab today! Many thanks to all involved 👍👍👍

Non‐Innocent Ligands as Mediators for Visible‐Light‐Initiated Element–Carbon Bond Homolysis in Main Group Chemistry This minireview discusses the facilitation of E─C bond homolysis of main group compounds with visible light by the coordination of redox non-innocent ligands. Important conceptual coherencies, potent....

Interested in „Non-Innocent Ligands as Mediators for Visible-Light-Initiated Element–Carbon Bond Homolysis in Main Group Chemistry“? Then have a look at this #AngewandteReview Excellent work by @jonasoliverwenzel.bsky.social (* author) and Johannes Werner 👍👍 #chemsky doi.org/10.1002/anie...

Front Cover: Stabilities and Limitations in the Reactivity of Phosphorus Ylide‐Based Aluminum– and Gallium–Carbon Ambiphiles: A Combined Experimental and Computational Approach (Eur. J. Inorg. Chem. 16/2025) The Front Cover shows a sketchpad with the structure of the formal methanol activation product of an aluminum–carbon-based ambiphile that is formed by the elimination of ammonia. A water molecule is ...

Nice Front Cover Design by Pascal Weisenburger @pascalweisenb.bsky.social! Many thanks to all involved in this fine study (@isra-group.bsky.social, @felixkraemer.bsky.social). chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/...

Non‐Innocent Ligands as Mediators for Visible‐Light‐Initiated Element – Carbon Bond Homolysis in Main Group Chemistry Photoinitiated homolysis of element-carbon bonds is an important method for the generation of carbon-centered radicals in catalysis and organometallic or polymer chemistry. In this respect, the use o....

Excellent review by @jonasoliverwenzel.bsky.social and Johannes Werner on "Non-Innocent Ligands as Mediators for Visible-Light-Initiated Element–Carbon Bond Homolysis in Main Group Chemistry" just out in @angewandtechemie.bsky.social 👍👉

doi.org/10.1002/anie...

Reactivity of an Ortho‐Phenylene‐Bridged Al/P Frustrated Lewis Pair toward Small Molecules The first mono ortho-phenylene-bridged Al/P frustrated Lewis pair (FLP) is synthesized and characterized. Its reactivity is probed against several small molecules. Furthermore, a suitable entry point...

Nice recent paper by Melina Dilanas, who brilliantly defended her PhD thesis today (details are following). Congrats 👍👍👍 Reactivity of an Ortho‐Phenylene‐Bridged Al/P Frustrated Lewis Pair toward Small Molecules. Dedicated to Prof. Werner Uhl! chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/...

Automated world: got proof corrections on „Karfreitag“ and the friendly reminder on „Ostermontag“, that I have to keep the 48h deadline… Happy Easter!

Boron‐Centered Lewis Superacid through Redox‐Active Ligands: Application in C−F and S−F Bond Activation The oxidation of ferrocenyl-substituted boranes and boronic esters allows for the straightforward synthesis of strong boron-centered Lewis superacids. The Lewis superacids were characterized by NMR, ...

Good news! Our article published in collaboration with the Paradies group received enough views to be a Top Viewed Article. Read it here onlinelibrary.wiley.com/doi/full/10.... #TopViewedArticle @wiley.com

Synthesis and Characterization of Bis(pyridylimino)isoindolide Alkali Metal Complexes in Three Redox States This work reports on the synthesis and characterization of alkali metal complexes of BPI and Me2BPI in reduced oxidation states. CV, EPR and XRD studies revealed detailed information about the unknow...

#TopViewedArticle 👍 We are delighted to share that our work, published in EurJIC @wiley.com, has ranked within the top 10% of most-viewed papers published by the journal in 2023 👉 doi.org/10.1002/ejic...

Reactivity of an ortho‐Phenylene‐bridged Al/P Frustrated Lewis Pair Towards Small Molecules Frustrated Lewis Pairs (FLPs) as ambiphilic molecules are prone to activate small molecules and are in the focus of interest for many years. In this paper, we present the first ortho-phenylene bridge...

The first mono ortho-phenylene bridged Al/P FLP was synthesized and characterized. Its reactivity was probed against several small molecules. Thanks to Melina Dianas 👍 doi.org/10.1002/ejic...

Stabilities and Limitations in the Reactivity of Phosphorus Ylide‐Based Aluminum‐ and Gallium‐Carbon Ambiphiles − A Combined Experimental and Computational Approach The unexpected reactivity and stability limits of phosphorus ylide-based aluminum- and gallium-carbon ambiphiles are described. While the previously published t-butyl-substituted compound (2-{AltBu2}...

A detailed study on the reactivity of ambiphilic metallacycles is presented. Thanks to @felixkraemer.bsky.social, @pascalweisenb.bsky.social and @isra-group.bsky.social)! Have a look at the paper 👉 doi.org/10.1002/ejic...

Congrats to Pascal Weisenburger @pascalweisenb.bsky.social for being elected for a Kekulé fellowship. 👍👍👍 And many thanks to the Fonds der Chemischen Industrie @chemieverband.bsky.social. We highly appreciate this generous support! More details: www.vci.de/fonds/der-fo...

Many thanks to @joshabbenseth.bsky.social and Frank Tambornino for highlighting our collaborative study on the organometallic and photochemistry of R2Al(BPI) complexes in „Trendbericht Anorganische Chemie 2025“ 👍👍👍
onlinelibrary.wiley.com/doi/10.1002/...

#PiSky #chemsky

A Stable Carbon‐Centered Radical Showing Six Amphoteric Redox States A fully conjugated system built by alternate fusion of four benzene and three cyclopentadiene rings is a further rare example of an air- and moisture-stable carbon-centered hydrocarbon radical. It wa...

Let’s start here with our last post from the other timeline:

Many thanks to the Podlech group for letting us be part of this nice study: A Stable Carbon‐Centered Radical Showing Six Amphoteric Redox States. Now out in Chem Eur J.
chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/...

Hi Nicole, it’s me 😀😀. Cheers, Frank

We have finally moved our group account to this platform in order to return to peaceful and fruitful exchanges! A warm welcome from the Breher Research Group to all!