@neumannlab.bsky.social
research group @Max-Planck-Insitut für Kohlenforschung heterogeneous catalysis - MOF chemistry - metal phosphides
In our most recent work we show how solid-state NMR reveals information about the chemical environment inside MOF pores in the absence and presence of guest molecules.
chemrxiv.org/engage/chemr...
Congratulations to authors Hao Deng, Marco Bengsch, Christophe Fares, Zihang Qiu and Mir Henglin!
www.organic-chemistry.org/Highlights/2...
Douglass features Reduction: The Bisai Synthesis of Oridamycin A
Our work on mechanistically homogeneous and functionally heterogeneous catalysis with MOFs is now available in @jacs.acspublications.org
Congrats to authors Junjun Chen, Christophe Fares and Aamir Abbas!
pubs.acs.org/doi/10.1021/...
In Co-catalyzed hydroformylation, where substantial phosphine rearrangement is required to stabilize the precatalyst and structures along the catalytic cycle, MOF-heterogenized phosphines reproduce homogeneous performance while offering recyclability and minimizing leaching (< 0.7 ppm Co).
06.07.2025 17:14 — 👍 0 🔁 0 💬 0 📌 0We show via solid-state NMR studies that the phosphine ligands enjoy a high degree of mobility within the super-cages, which permits them to furnish mechanistically homogeneous and functionally heterogeneous transition-metal catalysts.
06.07.2025 17:13 — 👍 1 🔁 0 💬 0 📌 0
Our new preprint describes a 1-step method for the secure heterogenization of structurally diverse phosphine ligands within spacious MOF super-cages.
chemrxiv.org/engage/chemr...
Congratulations to authors Junjun Chen, Christophe Fares and Aamir Abbas!
#newpaper Preferential 5-endo-trig and 5-exo trig cyclizations of silyl radicals with a MOF-based Rh(II) porphyrin catalyst enables chemoselective 1,3-diol formation for olefins that contain multiple olefins: www.thieme-connect.com/products/ejo...
Congrats to all authors (Gupta, Deng, Ding, Qiu)!
Our mechanistic proposal rationalizes why MOF-supported Rh(II) porphyrins are thermal hydrofunctionalization catalysts while molecular analogues prove unreactive. It also showcases the cooperation that can be achieved within a MOF matrix which precisely arranges Rh(II) centers in 3D space.
31.03.2025 17:51 — 👍 0 🔁 0 💬 0 📌 0Via EPR and NMR spectroscopic analyses, kinetics, isotope labeling, IR spectroscopy, molecular model systems, radical trapping, digestion studies, quantum chemistry and molecular dynamics, we could get a rare level of insight into the mechanistic details of a heterogeneously catalyzed reaction.
31.03.2025 17:50 — 👍 2 🔁 0 💬 0 📌 0
Our mechanism study of a MOF-catalyzed hydrosilylation reaction is now available in #JACS.
Congratulations to all authors!
Zihang Qiu, Paolo Cleto Bruzzese, Zikuan Wang, Hao Deng, Markus Leutzsch, Christophe Farès, Sonia Chabbra, PhD, Frank Neese, Alexander Schnegg
pubs.acs.org/doi/10.1021/...
Our concept paper on "Metal-Organic Framework-Specific Catalysis" is now available online
chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/...
Congratulations Marco!
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.
Our work on the development of structomers is now available as a preprint: chemrxiv.org/engage/chemr...
Congratulations to the authors Qiming Jin, Paolo Cleto Bruzzese, Alessandro Vetere, Claudia Weidenthaler, Eko Budiyanto, Mir Henglin, Nils Nöthling and Alexander Schnegg!
