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Our research interests are very broad, including the biochemical tools, spectroscopic approaches, and data processing strategies, and they equally cover solution and solid-state NMR methodology and applications. In addition, in the context of collaborations, we have always been interested in the characterization of inorganic or organic materials by solid-state NMR, for which composition, distances/contacts, dynamics, and electronic properties can be determined. We own equipment (a TRIGAMMA 2.5 mm MAS probe) specifically tailored for looking at a larger variety of nuclei. In the past, mostly silicon and phosphorous have played a role, enabling access to metal-organic (MOFs) and covalent organic frameworks (COFs), molecular chemical questions like silicon-silicon bond details in novel compounds or heterogeneous metal catalysts.

Metal-organic frameworks

Graphic illustration © AK-Linser​/​TU Dortmund

D. Fischer, A. von Mankowski, A. Ranft, S. K. Vasa, R. Linser, J. Mannhart, B. V. Lotsch,
“ZIF‑8 films prepared by femtosecond pulsed-laser-deposition”,
Chem. Mater., 29 (12), 5148–5155 (2017).

Graphic illustration © AK-Linser​/​TU Dortmund

R. Pallach, J. Keupp, K. Terlinden, L. Frentzel-Beyme, M. Kloß, A. Machalica, J. Kotschy, S. K. Vasa, P. A. Chater, C. Sternemann, M. T. Wharmby, R. Linser, R. Schmid, S. Henke,
“Frustrated flexibility in metal-organic frameworks”,
Nat. Commun., 4097 (2021), DOI: 10.1038/s41467-021-24188-4.

K. C. Mondal, S. Roy, B. Dittrich, D. Koley, B. Maity, S. Dutta, R. Linser, S. K. Vasa, S. Dechert, H. Roesky,
“A Soluble Molecular Variant of the Semiconducting Silicondiselenide”,
Chem. Sci., 6, 5230–5234 (2015).

J. I. Schweizer, M. G. Scheibel, M. Diefenbach, F. Neumeyer, C. Würtele, N. Kulminskaya, R. Linser, N. Auner, S. Schneider, M. C. Holthausen,
“A Disilene Base Adduct with a Dative Si–Si Single Bond”,
Angew. Chem., Int. Ed., 55 (5), 1782-1786 (2016).

Si- and P-containing inorganic compounds

Graphic illustration © AK-Linser​/​TU Dortmund

S. Roy, B. Dittrich, T. Mondal, D. Koley, A. C. Stückl, B. Schwederski, W. Kaim, M. John, S. K. Vasa, R. Linser, H. Roesky,
“Carbene Supported Dimer of Heavier Ketenimine Analogue with P and Si Atoms”,
J. Am. Chem. Soc., 137 (19), 6180–6183 (2015).

S. Roy, K. C. Mondal, L. Krause, P. Stollberg, R. Herbst-Irmer, D. Stalke, J. Meyer, A. C. Stückl, B. Maity, D. Koley, S. K. Vasa, S. Q. Xiang, R. Linser, H. W. Roesky,
“Electron-Induced Conversion of Silylones to Six-membered Cyclic Silylenes”,
J. Am. Chem. Soc., 136 (48), 16776–16779 (2014).

Heterogeneous catalysts

Graphic illustration © AK-Linser​/​TU Dortmund

A. Trebugov†, R. Linser†, K. Q. Vuong, A. Rawal, J. Gehman, B. Messerle,
“Solid-State NMR Structure Characterization of a 13CO-Labeled Ir(I) Complex with a P,N‑Donor Ligand Including Ultrafast MAS Methods”,
Inorg. Chem. 53, 7146−7153 (2014).
(† Shared first-authorship)