Malte Fischer
@maltefischer.bsky.social
"Fishing" around in early transition metal and main group chemistry // TT Ass. Prof. @ Georg-August-Universität Göttingen // Liebig fellow // https://www.uni-goettingen.de/de/674212.html
Interested in multimetallic complexes? In our latest paper, we show how the hapticity in indenyl systems can be used as a switch to access different multimetallic coordination modes, including a rare Cr-Ag motif. Congratulations to everyone involved :) pubs.rsc.org/dt/article/d...
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pubs.rsc.org
In this paper, we revisit one of the earliest reported bis(arene) sandwich complexes, [Fe(C6Me6)2], to finally solve a classic textbook question. As one of the reviewers mentioned, this is one for the organometallics purists! @chemieverband.bsky.social @kit.edu pubs.acs.org/doi/full/10....
Revisiting the Fe(0) Sandwich Complex [Fe(C6Me6)2], Structural Solution to a 64-Year-Old Mystery
In this communication, we revisit one of E. O. Fischer’s seminal discoveries to solve a textbook question: is the iron(0) complex [Fe(C6Me6)2] an 18-valence-electron complex with a ‘ring-slip’ (η6,η4)...
pubs.acs.org
#NewPI #Openings Dr. Hanna Cramer @h2cramer.bsky.social recently started her independent group at the Ruhr University Bochum. Check out her website below. She's looking to hire BS, MS and PhD students.
Hanna Hinrika Cramer Research Group
ResearchA more sustainable chemical industry must move away from fossil-based carbon sources and instead utilize renewable feedstocks, such as CO2 or…
forschung.ruhr-uni-bochum.de
We explored the photophysics of heavy T‑shaped Pn trisamides and uncovered unique behaviour✨ A fantastic collaboration with the Winter and Coburger groups, combining synthesis, spectroscopy, and theory. Stellar work by Katharina and Soti 👏 chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/...
Phosphorescence of Heavy, T‐Shaped Pnictogen Trisamides in Solution at Room Temperature in the Near‐Infrared II Region
The unique photophysical properties of heavy T-shaped Sb and Bi trisamides are reported. A ligand-to-pnictogen charge-transfer excitation from a redox-active NNN pincer to a vacant pnictogen p-orbita...
chemistry-europe.onlinelibrary.wiley.com
The latest from the Gilliard and Cummins Labs....on the synthesis and reactivity of dioxaboriranes is now online in @natchem.nature.com (www.nature.com/articles/s41...)! Chonghe synthesized a series of unusual boron-O2 compounds, formed by N2 exchange from diazoboranes! @gilliardgroup.bsky.social
Reactions of diazoboranes with oxygen enables the synthesis and isolation of dioxaboriranes - Nature Chemistry
Cyclic peroxides are highly reactive oxygen-containing species that play important roles in chemical synthesis. Now, the reaction between diazoboranes and triplet oxygen affords a family of cyclic dio...
nature.com
Excited to share our first publication of 2026 and our first foray into silicon chemistry now out in @angewandtechemie.bsky.social. Huge thanks to everyone involved for their hard work! onlinelibrary.wiley.com/doi/10.1002/...
Isolation and Reactivity of a Square‐Planar Trisamido Silane
We report the synthesis and comprehensive characterisation of a square-planar Si(+IV) hydride supported by an unsymmetric, trianionic and dearomatised N,N,N-pincer ligand. This system enables element...
onlinelibrary.wiley.com
Incredibly proud to share our group's latest publication, now out in JACS! Thanks to MSc student Luise and collaborator Robert for making this happen. pubs.acs.org/doi/10.1021/...
A Simple, Air Stable Single-Ion Source of Iron(I)
Molecular complexes of iron in the rare +1 oxidation state have been shown to be efficient catalysts for industrially relevant chemical transformations, typically associated with the increasingly unsu...
pubs.acs.org
N-Heterocyclic allenes can be made using a Ti vinylidene complex. Work by Bastiaan Kooij with support from Damien Chen (computations), Rosario Scopelliti (XRD) & Farzaneh Fadaei-Tirani (XRD). Out in @angewandtechemie.bsky.social : onlinelibrary.wiley.com/doi/10.1002/...
Excited to share that our Al/Cd platforms serve as tamed Al(II) surrogates. Thanks a lot to @lablichtenberg.bsky.social (&FW) for the great collaboration and effort on EPR! Read all about it in @chemicalscience.rsc.org 👩🔬👨🔬⬇️ #MyFirstChemSci @unikassel.bsky.social pubs.rsc.org/en/content/a...
Al(II) Transfer Harnessing a Well-Defined Cadmium Precursor
Low-valent aluminum chemistry continues to expand the boundaries of main-group reactivity, yet the selective generation and transfer of Al(II) fragments remain underexplored. Controlled Al(II) transfe...
pubs.rsc.org
Could the discovery of a catalyst in which aluminium shifts easily between oxidation states be the beginning of the end for costly transition-metal catalysts? go.nature.com/4rkI0AW
Untapped catalytic ability of aluminium has been unlocked
Could the discovery of a catalyst in which aluminium shifts easily between oxidation states be the beginning of the end for costly transition-metal catalysts?
go.nature.com
Great to see this out! @fabiandankert.bsky.social and I summarise some of our favourite papers in main group chemistry over the last year gdch.app/article/haup...
Hauptgruppen‐ und Molekülchemie
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 ...
gdch.app
📣Our new paper is out in @jacs.acspublications.org (our very first one)!🥳 We show how a redox-active ligand unlocks C–X bond scission at an ambiphilic T-shaped Bi(III) compound. A big collaborative effort with my brilliant colleagues from Berlin. 👉 pubs.acs.org/doi/10.1021/...
Ambiphilic Reactivity and Switchable Methyl Transfer at a T-Shaped Bi(NNN) Complex Enabled by a Redox-Active Pincer Ligand
We report the transition-metal-like reactivity of a geometrically constrained, ambiphilic bismuth(III) trisamide. Planarization of the Bi(III) center unlocks Bi–C bond formation when reacted with mild...
pubs.acs.org
The group will soon be advertising a 3-year PDRA position @imperialchemistry.bsky.social. The successful candidate will research the synthesis and reactivity of complexes with alkaline earth-metal bonds. Start date: 03/26. Please get in touch for infomal inquries.
Just 4 weeks left to apply for the PhD position in our research group! Deadline: 31 January. Don’t miss out, apply today :)
Josh Abbenseth@joshabbenseth.bsky.social · 9mo ago🚨 PhD Opportunity 🚨 🔁 Reposts appreciated! My group at @manchester.ac.uk is recruiting a 3.5-year PhD student to explore Sb & Bi pincer complexes for metallomimetic chemistry. 🔬 Fully funded (UK only) 📍 Manchester 🧪 Synthetic inorganic chemistry Apply 👉 tinyurl.com/yrjkvha9
TIRE CHANGE: First Mg(I) complex with a Cp* ligand enables facile ligand exchange. Reaction with RONa gives (BDI)Mg-MgOR and Cp*Na. This paves the way for syntheses of many new asymmetric Mg(I) complexes. @angew_chem onlinelibrary.wiley.com/doi/epdf/10....
Our group's very first ACIE paper is out!🥳 Awesome work by Soti and a great cooperation with the Bittl group and @franemmerling.bsky.social. Dedicated to @christianlimberg.bsky.social and Franc Meyer @humboldtuni.bsky.social @manchester.ac.uk onlinelibrary.wiley.com/doi/full/10....
First post, first publication! I’m over the moon to share the first publication from our small research group! 🚀 pubs.rsc.org/en/content/a... @chemcomm.rsc.org Jan explored a funky P=P-containing heterocycle and its reversible! bond activation chemistry, with DFT insights from Francesco. #newPI
Thrilled to share a first publication of the group! We report on cadmium aluminyls that find application as Cd-nucleophiles and(!) Al(I)-Transfer reagents. Now out in @jacs.acspublications.org ! 🥳👍 Thanks a lot to @chemieverband.bsky.social for the generous funding. pubs.acs.org/doi/10.1021/...
Functional Al/Cd Heterometallics─From Controlled Al(I) Transfer to Nucleophilic Transfer of Cadmium Ions
Low-valent cadmium compounds have remained largely unexplored as electron reservoirs, with no precedent for their use in reduction or bond activation chemistry. Here, we address this gap by integratin...
pubs.acs.org
Honored to welcome guests from the prestigious Tsinghua University in Beijing tsinghuauniversity.bsky.social for a fruitful exchange with representatives of the Faculty of Chemistry and the CRC 1633 in Göttingen. Many thanks for the inspiring discussions and the successful collaboration!
Our latest publication reports the successful isolation of π-stabilized tetryliumylidenes [E–X]+ starting from pyramidanes based on a biradicaloid ligand . This milestone was made possible thanks to David’s relentless efforts . Proud of the team!
π‐Complexes of Main‐Group Metal Cations: Exploration of Lewis Acid Reactivity
A series of cationic main-group complexes was obtained using the neutral, zwitterionic ligand IDP. The Lewis acidity of these complexes is explored by catalytic hydrophosphinations and halide additio...
chemistry-europe.onlinelibrary.wiley.com
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
Excited to share our contribution to the special issue "Organometallic Chemistry Beyond the Transition Metals: Fundamentals and Applications of the P-Block" – now published @Organometallics! Check it out 👉 @pubs.acs.org #ChemSky pubs.acs.org/doi/10.1021/...
Kinetic Stabilization in Diaryl-Substituted Stannylenes: N2O Reactivity, Intramolecular C–H Activation, and Crystalline (Eind)Li(THF)2 as a Versatile Precursor in Tin Chemistry
The reactivity of the kinetically stabilized stannylene (MesTer)2Sn (1) (MesTer = –C6H3-2,6-(2,4,6-Me3-C6H2)2) toward N2O is revisited, yielding the terminal tin(IV) hydroxide 2 via formal intramolecular C(sp3)–H activation of a putative terminal stannanone intermediate. By switching to Eind ligation (Eind = 1,1,3,3,5,5,7,7-octaethyl-s-hydrindacen-4-yl) at the tin center, the synthesis and characterization of the crystalline lithium salt (Eind)Li(THF)2 (3) is reported, serving as a straightforward precursor for the clean generation of the corresponding stannylene (Eind)2Sn (4). Compound 4 can be further cleanly converted into the heteroleptic Eind/halide stannylene (Eind)SnCl (6). Both 4 and 6 serve as suitable precursors for the synthesis of the heteroleptic s-hydrindacene-/amido-substituted stannylene (Eind)Sn{N(SiMe3)2} (5).
pubs.acs.org
Check out Fabio's next paper on the Nature of the Heavy Formal Double Bonds As=Ch, Sb=Ch and Bi=Ch (Ch = S, Se, Te) in NCN-Pincer Supported Arsinidene, Stibinidene and Bismuthinidene Chalcogenides - now published in Chemical Science pubs.rsc.org/en/content/articlelanding/2025/sc/d5sc03320a
Thrilled of having contributed to this investigation of low-valent aluminium species and their unique reactivity with azides. Great collaboration with the Stalke and Krawczuk groups! onlinelibrary.wiley.com/doi/10.1002/...
Intriguing Reactivity of a 1,2‐Dihydrodialumane Towards Organic Azides – From a Terminal Diazido–Dialumane to Pendulum‐Clock‐Like Azide Bridging
The reaction of a dihydro-dialane supported by a hybrid ligand (DNI) with organic azides yields structurally diverse aluminium species, including the first example of low oxidation state aluminium az...
onlinelibrary.wiley.com
Our manuscript on unlocking the ambiphilicity of boryl anions is now published in JACS @jacs.acspublications.org (pubs.acs.org/doi/full/10....)! Chonghe, Junyi, Xibao, and coworkers report the synthesis and reactivity of the first anionic diazoborane! #maingroup #boron @gilliardgroup.bsky.social
LOW-VALENT Si, Ge, Sn, Pb: HOW LOW CAN WE GO??? Hydrocarbon-soluble Mg(0) reduces Si all the way to Si(4-). Unfortunately not stable and decomposing to the HSi(3-) anion. However, Sn(4-) is stable and functions as 4-fold Nu or 8e reducing agent. Preprint: shorturl.at/4mH0O
🔓Explore recent #OpenAccess work by @maltefischer.bsky.social, @townrowresearch.bsky.social and colleagues on the isolation of the parent triplet titanocene via NHC stabilisation🔥 pubs.rsc.org/en/content/a... 📍@unigoettingen.bsky.social and @kit.edu 🧪
Isolation of the parent triplet titanocene via NHC stabilisation
We present the synthesis and characterization of the parent isolable monomeric triplet titanocene complex, stabilized by the N-heterocyclic carbene (NHC) IMe4. Investigated by SQUID magnetometry and…
pubs.rsc.org
Rreactivity of Pnictaalumenes towards 1,3-Dipole Molecules fresh out in @angewandtechemie.bsky.social Tim, Edgar and Leonie uncover unique insertion chemsitry giving a plethora of Al,P,N-heterocycles! Again a fruitful collaboration with the Braunschweig Group! doi.org/10.1002/anie...
This year's HOT articles collection is now online🔥 This collection represents the top 10% of research published in our journal each quarter. Congratulations to all the authors whose articles are featured in this collection👏 pubs.rsc.org/en/journals/... #Chemsky 🧪
Fresh out of the oven. Check out Chenyang’s most recent work in JACS (@jacs.acspublications.org). We explore the reactivity of a phosphinidene oxide as the electrophilic partner in Wittig transformations. Hope you enjoy. pubs.acs.org/doi/full/10....
A Fresh Twist on the Phospha-(Aza)-Wittig Reaction
The reactivity of an unsupported phosphinidene oxide, BnArNP═O (Bn = benzyl; Ar = bulky aryl group), as the electrophilic partner in Wittig reactions with ylides is described. Reactions with methylene-triphenylphosphorane (H2C═PPh3) and ethylidene-triphenyl-phosphorane (HMeC═PPh3), proceed as expected, giving rise to the phosphaalkene metathesis products and triphenylphosphine oxide. This reaction can be extended to other ylides such as N-(triphenylphosphoranylidene)methanamine (MeN═PPh3), to afford an aminoiminophosphane BnArNP═NMe. In these reactions the phosphinidene oxide plays the role of an electrophile, which would typically be the remit of an organic carbonyl in classical Wittig reactions. Further mechanistic insight into such transformations can be gained by altering the nature of the phosphorus-ylide. Upon reacting BnArNP═O with H2C═PMe3 (which possesses a smaller, more Lewis basic, phosphine) an alternative product is formed. This transformation supports the formation of a betaine intermediate that subsequently undergoes hydrogen-migration to afford an oxidized phosphorus(V) compound related to phosphorus acid.
pubs.acs.org