This is a research group in structural chemistry led by Dr. Yury V. Vishnevskiy at Bielefeld University.
We develop experimental and theoretical fundamentals of the gas electron diffraction technique and methods for molecular structure refinement. This includes such aspects as instrumental work in laboratory, data measurement and processing, writing of scientific software, quantum-chemical calculations, refinement of molecular parameters. As supplementary information we use data from mass-spectrometry, vibrational and microwave spectroscopy. Our primary goal is the determination of accurate and precise structures for inorganic, organic and organometallic compounds. On the basis of this data we calibrate theoretical approximations and calculate structures and properties of various important compounds. Accordingly, our main scientific interests are
✓ gas-phase molecular structures |
✓ gas electron diffraction |
✓ molecular spectroscopy |
✓ computational chemistry |
✓ scientific programming |
✓ data processing algorithms |
Recent results
F. Ebeler, Y. V. Vishnevskiy, J.-H. Lamm, B. Neumann, H.-G. Stammler, & R. S. Ghadwal, Bicyclo[1.1.0]tetragermane-2,4-diide Diradicaloid. Angew. Chem. Int. Ed., 64 (2025) e202513772. https://doi.org/10.1002/anie.202513772.
M. J. Klingsiek, Y. V. Vishnevskiy, J. Buth, J.-H. Lamm, B. Neumann, H.-G. Stammler, & N. W. Mitzel, Redox-Switchable Poly-Lewis Acids Allow the Controlled Release of Guests. Angew. Chem. Int. Ed., 64 (2025) e202509191. https://doi.org/10.1002/anie.202509191.
H. Steffenfauseweh, Y. V. Vishnevskiy, B. Neumann, H.-G. Stammler, D. D. Snabilié, B. de Bruin, & R. S. Ghadwal, Annulated Radical Cations with a C4E2-Core (E = P, As, Sb): Stable Pnictogen Analogs of Elusive Aryl Radical Anions of Birch Reduction Reactions. Angew. Chem. Int. Ed., 64 (2025) e202505142. https://doi.org/10.1002/anie.202505142.
V. Scutelnic, D. S. Tikhonov, S. Marggi Poullain, E. A. Haugen, A. Attar, L. Barreau, K. Chang, A. P. Fidler, J. D. Gaynor, Y.-C. Lin, J. Yang, E. G. Champenois, X. Wang, X. Shen, D. Luo, F. Ji, S. Weathersby, Y. V. Vishnevskiy, M. Schnell, T. J. A. Wolf, M.-F. Lin, & S. R. Leone, Capturing Ring Opening in Photoexcited Enolic Acetylacetone upon Hydrogen Bond Dissociation by Ultrafast Electron Diffraction. J. Phys. Chem. Lett., 16 (2025) 5068–5075. https://doi.org/10.1021/acs.jpclett.5c00285.
A. Merschel, H. Steffenfauseweh, Y. V. Vishnevskiy, B. Neumann, H.-G. Stammler, & R. S. Ghadwal, Lithium Anionic Dicarbenes or Acetylides: What is in the Name? Angew. Chem. Int. Ed., 64 (2025) e202501068. https://doi.org/10.1002/anie.202501068.
A. Merschel, S. Heda, Y. V. Vishnevskiy, B. Neumann, H.-G. Stammler, & R. S. Ghadwal, Annulated carbocyclic gallylene and bis-gallylene with two-coordinated Ga(I) atoms. Chem. Sci., 16 (2025) 2222–2230. https://doi.org/10.1039/D4SC06782G.
M. Franke, L. Stratmann, Y. V. Vishnevskiy, B. Neumann, H.-G. Stammler, & N. W. Mitzel, Tri- and Hexanuclear Gold(I) Systems Based on Tribenzotriquinacene. Eur. J. Inorg. Chem., 27 (2024) e202400469. https://doi.org/10.1002/ejic.202400469.
H. Steffenfauseweh, D. Rottschäfer, Y. V. Vishnevskiy, B. Neumann, H.-G. Stammler, B. de Bruin, & R. S. Ghadwal, Non-Kekulé meta-Quinodimethane Singlet Diradicals Based on Classical N-Heterocyclic Carbenes. Chem. Eur. J., 30 (2024) e202403029. https://doi.org/10.1002/chem.202403029.
F. Ebeler, Y. V. Vishnevskiy, B. Neumann, H.-G. Stammler, D. W. Szczepanik, & R. S. Ghadwal, Annulated 1,4-Disilabenzene-1,4-diide and Dihydrogen Splitting. J. Am. Chem. Soc., 146 (2024) 30584–30595. https://doi.org/10.1021/jacs.4c12127.
J. Krieft, P. C. Trapp, Y. V. Vishnevskiy, B. Neumann, H.-G. Stammler, J.-H. Lamm, & N. W. Mitzel, A geminal antimony(III)/phosphorus(III) frustrated Lewis pair. Chem. Sci., 15 (2024) 12118–12125. https://doi.org/10.1039/D4SC02785J.
Y. V. Vishnevskiy, Y. Heider, & D. Scheschkewitz, Experimental molecular structures in the gas phase at the upper size limit: The case of Si6Tip6. J. Chem. Phys., 161 (2024) 054307. https://doi.org/10.1063/5.0219926.
P. Heinrichs, Y. V. Vishnevskiy, B. Neumann, H.-G. Stammler, & N. W. Mitzel, Syntheses and Conformations of a Trinuclear Gold(I) System Based on a Triethinyl-trisilacyclohexane Scaffold. Eur. J. Inorg. Chem., 27 (2024) e202400151. https://doi.org/10.1002/ejic.202400151.
H. Steffenfauseweh, Y. V. Vishnevskiy, B. Neumann, H.-G. Stammler, B. de Bruin, & R. S. Ghadwal, N-Heterocyclic Carbene Analogues of Wittig Hydrocarbon. Chem. Eur. J., 30 (2024) e202400879. https://doi.org/10.1002/chem.202400879.
K. Tölke, S. Porath, Y. V. Vishnevskiy, B. Neumann, H.-G. Stammler, N. W. Mitzel, & B. Hoge, Water Adducts of the Lewis Superacids: Tris(pentafluoroethyl)gallane and -indane. Eur. J. Inorg. Chem., 27 (2024) e202300759. https://doi.org/10.1002/ejic.202300759.
A. Merschel, Y. V. Vishnevskiy, B. Neumann, H.-G. Stammler, & R. S. Ghadwal, Access to a peri-Annulated Aluminium Compound via C−H Bond Activation by a Cyclic Bis-Aluminylene. Chem. Eur. J., 30 (2024) e202400293. https://doi.org/10.1002/chem.202400293.
A. Merschel, Y. V. Vishnevskiy, B. Neumann, H.-G. Stammler, & R. S. Ghadwal, Boosting the π-Acceptor Property of Mesoionic Carbenes by Carbonylation with Carbon Monoxide. Angew. Chem. Int. Ed., 63 (2024) e202318525. https://doi.org/10.1002/anie.202318525.
F. Ebeler, Y. V. Vishnevskiy, B. Neumann, H.-G. Stammler, & R. S. Ghadwal, Isolation of an Anionic Dicarbene Embedded Sn2P2 Cluster and Reversible CO2 Uptake. Adv. Sci., 11 (2024) 2305545. https://doi.org/10.1002/advs.202305545.
A. Merschel, Y. V. Vishnevskiy, B. Neumann, H.-G. Stammler, & R. S. Ghadwal, Ring-Opening of 1,3-Imidazole Based Mesoionic Carbenes (iMICs) and Ring-Closing Clicks: Facile Access to iMIC-Compounds. Chem. Eur. J., 30 (2024) e202303652. https://doi.org/10.1002/chem.202303652.
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