@neumann_lab

heterogeneous catalysis - alloy nanoparticles and MOF chemistry - Max-Planck-Institut für Kohlenforschung

 Mülheim, Germany
neumannlab.science
Joined March 2020
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Our account here will go dormant. If you are interested in our content please follow us on bluesky under @neumannlab.bksy.social (Neumann Lab)
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Our group at @polimi has still #PhD and #postdoc positions open on #organic #materials for catalysis and fine chemicals. We have some very excited projects 😁- plus #Milan is a beautiful city to live and work! Please send your CV and motivation letter to [email protected]
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Would you like to use silyl radicals without having to expend all the energy necessary to make them? Check out our preprint on low-barrier silyl radical transfer from a 3-center-3-electron adduct: chemrxiv.org/engage/chemrxiv…

3-center-3-electron σ-Adduct Enables Silyl Radical Transfer Below the Minimum Barrier for Silyl...

Transition-metal-catalyzed cleavage of the Si–H bond in silanes to yield silyl radicals requires substantial amounts of energy, which is commonly supplied by photons. For Rh(II) porphyrins, efficient...

chemrxiv.org
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Our work on the development of structomers is now available as preprint: 10.26434/chemrxiv-2024-h09tl Congratulations to the authors Qiming Jin, Paolo Cleto Bruzzese, Alessandro Vetere, Claudia Weidenthaler, Eko Budiyanto, Mir Henglin, Nils Nöthling and Alexander Schnegg!
The graphic shows three regioisomers of diazines in the top row and shows a sketch of a pill with an attached arene. The latter alludes to the fact that the ability to prepare individual regioisomers permits researchers to optimize the position of nitrogen atoms in arene rings for applications in medicinal chemistry. The bottom row shows simplistic representations of four different structomers of metal-organic frameworks. All four structomers have the same composition and are isostructural, but differ in how "active" and "inactive" metal sites are arranged within the structure. Selective preparation of individual structomers thus permits one to optimize metal arrangements in extended structures.

ALT The graphic shows three regioisomers of diazines in the top row and shows a sketch of a pill with an attached arene. The latter alludes to the fact that the ability to prepare individual regioisomers permits researchers to optimize the position of nitrogen atoms in arene rings for applications in medicinal chemistry. The bottom row shows simplistic representations of four different structomers of metal-organic frameworks. All four structomers have the same composition and are isostructural, but differ in how "active" and "inactive" metal sites are arranged within the structure. Selective preparation of individual structomers thus permits one to optimize metal arrangements in extended structures.

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We show that a mobility-tuned synthesis strategy enables selective preparation of different “structomers”, which are isostructural and have identical composition. Since each structomer can be prepared with high selectivity, the effect of arrangements on properties can be tested.
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The critical effect of metal arrangement on the behavior of metal sites is apparent from the large differences between the catalytic activity of structomers of rhodium containing MOPs and MOFs in propene hydrogenation.
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We are looking for a postdoc to join our team!
The images describes a position for a postdoctoral researcher in the field of transition metal catalysis. More information can also be found on the website of the Max-Planck-Institut für Kohlenforschung.

ALT The images describes a position for a postdoctoral researcher in the field of transition metal catalysis. More information can also be found on the website of the Max-Planck-Institut für Kohlenforschung.

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On behalf of Amanda @amorri28 and myself @ShustovaLab - MOF-2026 in New Orleans🎷 #MOF2026🎷- save the dates! Please send us organization suggestions and cannot wait to see you again! Thank you @ZhaoGroupNUS @9thMOF2024 - it was great!😊 Repost is appreciated... 😊
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#OnTheCover Expedited Synthesis of Metal Phosphides Maximizes Dispersion, Air Stability, and Catalytic Performance in Selective Hydrogenation (C. N. Neumann and co-workers) onlinelibrary.wiley.com/doi/… @neumann_lab onlinelibrary.wiley.com/doi/…
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Expedited Synthesis of Metal Phosphides Maximizes Dispersion, Air Stability, and Catalytic Performance in Selective Hydrogenation (Constanze N. Neumann and co-workers) @neumann_lab #openaccess #AngewandteVIP onlinelibrary.wiley.com/doi/…

Expedited Synthesis of Metal Phosphides Maximizes Dispersion, Air Stability, and Catalytic Perfor...

A modular synthesis based on cheap and safe precursors delivers a wide range of supported metal phosphides with small particle diameters and high dispersion. Ni2P/Al2O3 prepared in this fashion is a...

onlinelibrary.wiley.com
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Here is our 1-step synthesis of highly dispersed metal phosphides on a variety of supports from cheap, easy-to-handle precursors. Ni2P/Al2O3 (1-step) can be made and stored without a glovebox and matches the performance of the Pd-based Lindlar catalyst: tinyurl.com/phosphides
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Here is first author Leila Karam presenting her work at the German Catalysis meeting earlier this year – congratulations to Leila and all co-authors!
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It has been a busy time lately – we celebrated Aamir’s marriage and met his wife, welcomed our new technician Daniel to the team, and the group demonstrated their athletic prowess in the Mülheim company run. Also lots of chemistry of course :-)
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Neumann Lab retweeted
Morandi Lab@morandilab20 May 2024
Congrats @yannickbraegger, @PaschkeAK, Nima Nasiri, @BenceBBotlik and @Ffelician99 for this masterpiece! Oxidative amination of unactivated alkenes via nitrogen atom insertion into carbon-carbon double bonds. @ChemRxiv - go.shr.lc/3UQNC6L
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Neumann Lab retweeted
Nevado Group@NevadoLab1 May 2024
#SCS_BC2024 waiting to start the evening session with ⁦@Schoenebeck_Lab⁩ … fondue-delays can only happen here right?😅
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Neumann Lab retweeted
Ritter Lab@ritter_lab20 Apr 2024
A growing assumption is that using tetrafluoroborate as a counterion for diazonium salts results in safe and stable salts. This assumption is not generally true, as also BF4-salts of aryldiazoniums have been reported to explode! Stay safe! pubs.acs.org/doi/10.1021/acs…

A Need for Caution in the Preparation and Application of Synthetically Versatile Aryl Diazonium...

Since their discovery1 in 1858, aryl diazonium salts have played a major role in organic synthesis. They have been widely employed as precursors to diazo d

pubs.acs.org
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Neumann Lab retweeted
Yu Zhong@yzhong9717 Apr 2024
The Ober group and my group have open positions for joint postdocs with expertise in polymer chemistry. The project aims to develop photoresist polymers suitable for extreme ultraviolet lithography. Please help spread!
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We have two PhD positions available in the group! Please feel free to spread the word, and if you are a researcher excited about catalysis with MOFs or transition metal phosphides, we would love to hear from you!
The images describe two PhD positions available in the Neumann Group at the Max-Planck Institut für Kohlenforschung. One position is in the field of MOF catalysis, and the other in the field of catalysis with transition metal phosphides. More information about the positions will soon be available under https://www.kofo.mpg.de/863280/Job-Advertisements

ALT The images describe two PhD positions available in the Neumann Group at the Max-Planck Institut für Kohlenforschung. One position is in the field of MOF catalysis, and the other in the field of catalysis with transition metal phosphides. More information about the positions will soon be available under https://www.kofo.mpg.de/863280/Job-Advertisements

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