[{"publication":"ChemCatChem","type":"journal_article","abstract":[{"text":"Abstract Novel SBA-15-supported heterogeneous catalysts are synthesized and applied in the Mizoroki?Heck and the Suzuki?Miyaura cross-coupling reactions in green solvents like PEG or water. The structural properties of the products after each synthesis step are monitored by different analytics. The amount of amine/carboxyl groups and vanillin/histidine methyl ester and thermal stability are determined by TGA and elemental analysis, while ICP-OES delivered the amount of palladium of the catalysts. The morphology is investigated by SEM and XPS and confirms the presence of coordinated palladium in the zero-oxidation state. Gas adsorption analysis is conducted, which indicates the presence of palladium clusters in one of the two catalysts, which is underlined by BSE images combined with EDX. A detailed 13C ssNMR and DNP-enhanced 15N ssNMR spectral analysis is presented, which provides ultimate proof of the successful syntheses of the catalysts. The coordination of the palladium onto the carrier material is shown by combining the NMR spectral results with the results of the other analytics. First catalytic tests show for the Mizoroki?Heck reaction yields up to nearly 100% and for the Suzuki-Miyaura up to 88% in the presence of PEG and water, respectively.","lang":"eng"}],"status":"public","_id":"64062","user_id":"100715","keyword":["SBA-15","Heterogeneous catalyst","Pd cross-coupling","Polyethylene glycol","Solid-state DNP NMR"],"language":[{"iso":"eng"}],"extern":"1","publication_identifier":{"issn":["1867-3880"]},"year":"2024","intvolume":"        17","page":"e202401511","citation":{"chicago":"Wissel, Till, Lorenz Rösler, Martin Brodrecht, Mark V. Höfler, Kevin Herr, Marcos Oliveira Jr., Vytautas Klimavicius, et al. “Novel Heterogeneous Pd Catalysts for Cross-Coupling Reactions in Biocompatible Media: Structural Insights from Solid-State NMR Techniques.” <i>ChemCatChem</i> 17 (2024): e202401511. <a href=\"https://doi.org/10.1002/cctc.202401511\">https://doi.org/10.1002/cctc.202401511</a>.","ieee":"T. Wissel <i>et al.</i>, “Novel Heterogeneous Pd Catalysts for Cross-Coupling Reactions in Biocompatible Media: Structural Insights from Solid-State NMR Techniques,” <i>ChemCatChem</i>, vol. 17, p. e202401511, 2024, doi: <a href=\"https://doi.org/10.1002/cctc.202401511\">10.1002/cctc.202401511</a>.","ama":"Wissel T, Rösler L, Brodrecht M, et al. Novel Heterogeneous Pd Catalysts for Cross-Coupling Reactions in Biocompatible Media: Structural Insights from Solid-State NMR Techniques. <i>ChemCatChem</i>. 2024;17:e202401511. doi:<a href=\"https://doi.org/10.1002/cctc.202401511\">10.1002/cctc.202401511</a>","apa":"Wissel, T., Rösler, L., Brodrecht, M., Höfler, M. V., Herr, K., Oliveira Jr., M., Klimavicius, V., Ebert, M., Breitzke, H., Hoffmann, M., Buntkowsky, G., &#38; Gutmann, T. (2024). Novel Heterogeneous Pd Catalysts for Cross-Coupling Reactions in Biocompatible Media: Structural Insights from Solid-State NMR Techniques. <i>ChemCatChem</i>, <i>17</i>, e202401511. <a href=\"https://doi.org/10.1002/cctc.202401511\">https://doi.org/10.1002/cctc.202401511</a>","mla":"Wissel, Till, et al. “Novel Heterogeneous Pd Catalysts for Cross-Coupling Reactions in Biocompatible Media: Structural Insights from Solid-State NMR Techniques.” <i>ChemCatChem</i>, vol. 17, John Wiley &#38; Sons, Ltd, 2024, p. e202401511, doi:<a href=\"https://doi.org/10.1002/cctc.202401511\">10.1002/cctc.202401511</a>.","short":"T. Wissel, L. Rösler, M. Brodrecht, M.V. Höfler, K. Herr, M. Oliveira Jr., V. Klimavicius, M. Ebert, H. Breitzke, M. Hoffmann, G. Buntkowsky, T. Gutmann, ChemCatChem 17 (2024) e202401511.","bibtex":"@article{Wissel_Rösler_Brodrecht_Höfler_Herr_Oliveira Jr._Klimavicius_Ebert_Breitzke_Hoffmann_et al._2024, title={Novel Heterogeneous Pd Catalysts for Cross-Coupling Reactions in Biocompatible Media: Structural Insights from Solid-State NMR Techniques}, volume={17}, DOI={<a href=\"https://doi.org/10.1002/cctc.202401511\">10.1002/cctc.202401511</a>}, journal={ChemCatChem}, publisher={John Wiley &#38; Sons, Ltd}, author={Wissel, Till and Rösler, Lorenz and Brodrecht, Martin and Höfler, Mark V. and Herr, Kevin and Oliveira Jr., Marcos and Klimavicius, Vytautas and Ebert, Martin and Breitzke, Hergen and Hoffmann, Markus and et al.}, year={2024}, pages={e202401511} }"},"date_updated":"2026-02-17T16:12:41Z","publisher":"John Wiley & Sons, Ltd","volume":17,"date_created":"2026-02-07T16:18:53Z","author":[{"full_name":"Wissel, Till","last_name":"Wissel","first_name":"Till"},{"first_name":"Lorenz","last_name":"Rösler","full_name":"Rösler, Lorenz"},{"first_name":"Martin","full_name":"Brodrecht, Martin","last_name":"Brodrecht"},{"full_name":"Höfler, Mark V.","last_name":"Höfler","first_name":"Mark V."},{"first_name":"Kevin","full_name":"Herr, Kevin","last_name":"Herr"},{"first_name":"Marcos","full_name":"Oliveira Jr., Marcos","last_name":"Oliveira Jr."},{"first_name":"Vytautas","full_name":"Klimavicius, Vytautas","last_name":"Klimavicius"},{"first_name":"Martin","last_name":"Ebert","full_name":"Ebert, Martin"},{"last_name":"Breitzke","full_name":"Breitzke, Hergen","first_name":"Hergen"},{"full_name":"Hoffmann, Markus","last_name":"Hoffmann","first_name":"Markus"},{"last_name":"Buntkowsky","full_name":"Buntkowsky, Gerd","first_name":"Gerd"},{"first_name":"Torsten","id":"118165","full_name":"Gutmann, Torsten","last_name":"Gutmann"}],"title":"Novel Heterogeneous Pd Catalysts for Cross-Coupling Reactions in Biocompatible Media: Structural Insights from Solid-State NMR Techniques","doi":"10.1002/cctc.202401511"},{"abstract":[{"lang":"eng","text":"In this work, the behavior of four different commercially available polarizing agents is investigated employing the non-ionic model surfactant 1-octanol as analyte. A relative method for the comparison of the proportion of the direct and indirect polarization transfer pathways is established, allowing a direct comparison of the polarization efficacy for different radicals and different parts of the 1-octanol molecule despite differences in radical concentration or sample amount. With this approach, it could be demonstrated that the hydrophilicity is a key factor in the way polarization is transferred from the polarizing agent to the analyte. These findings are confirmed by the determination of buildup times Tb, illustrating that the choice of polarizing agent plays an essential role in ensuring an optimal polarization transfer and therefore the maximum amount of enhancement possible for DNP enhanced NMR measurements."}],"status":"public","publication":"Solid State Nuclear Magnetic Resonance","type":"journal_article","keyword":["DNP NMR","Dynamics","Low temperature NMR","Octanol","Solid state NMR","Surfactants"],"language":[{"iso":"eng"}],"extern":"1","_id":"63948","user_id":"100715","year":"2022","intvolume":"       122","page":"101829","citation":{"ama":"Döller SC, Gutmann T, Hoffmann M, Buntkowsky G. A case study on the influence of hydrophilicity on the signal enhancement by dynamic nuclear polarization. <i>Solid State Nuclear Magnetic Resonance</i>. 2022;122:101829.","chicago":"Döller, Sonja C., Torsten Gutmann, Markus Hoffmann, and Gerd Buntkowsky. “A Case Study on the Influence of Hydrophilicity on the Signal Enhancement by Dynamic Nuclear Polarization.” <i>Solid State Nuclear Magnetic Resonance</i> 122 (2022): 101829.","ieee":"S. C. Döller, T. Gutmann, M. Hoffmann, and G. Buntkowsky, “A case study on the influence of hydrophilicity on the signal enhancement by dynamic nuclear polarization,” <i>Solid State Nuclear Magnetic Resonance</i>, vol. 122, p. 101829, 2022.","mla":"Döller, Sonja C., et al. “A Case Study on the Influence of Hydrophilicity on the Signal Enhancement by Dynamic Nuclear Polarization.” <i>Solid State Nuclear Magnetic Resonance</i>, vol. 122, 2022, p. 101829.","short":"S.C. Döller, T. Gutmann, M. Hoffmann, G. Buntkowsky, Solid State Nuclear Magnetic Resonance 122 (2022) 101829.","bibtex":"@article{Döller_Gutmann_Hoffmann_Buntkowsky_2022, title={A case study on the influence of hydrophilicity on the signal enhancement by dynamic nuclear polarization}, volume={122}, journal={Solid State Nuclear Magnetic Resonance}, author={Döller, Sonja C. and Gutmann, Torsten and Hoffmann, Markus and Buntkowsky, Gerd}, year={2022}, pages={101829} }","apa":"Döller, S. C., Gutmann, T., Hoffmann, M., &#38; Buntkowsky, G. (2022). A case study on the influence of hydrophilicity on the signal enhancement by dynamic nuclear polarization. <i>Solid State Nuclear Magnetic Resonance</i>, <i>122</i>, 101829."},"title":"A case study on the influence of hydrophilicity on the signal enhancement by dynamic nuclear polarization","date_updated":"2026-02-17T16:18:26Z","volume":122,"date_created":"2026-02-07T09:13:08Z","author":[{"first_name":"Sonja C.","full_name":"Döller, Sonja C.","last_name":"Döller"},{"first_name":"Torsten","last_name":"Gutmann","full_name":"Gutmann, Torsten","id":"118165"},{"first_name":"Markus","last_name":"Hoffmann","full_name":"Hoffmann, Markus"},{"first_name":"Gerd","last_name":"Buntkowsky","full_name":"Buntkowsky, Gerd"}]}]