Major research interests in my group include (1) immobilized catalysts, (2) the surface chemistry of oxide materials and (3) solid-state NMR spectroscopy.
Immobilized catalysts (1) allow the advantages of heterogeneous catalysts to be combined with those of homogeneous catalysts. In particular, surface-immobilized homogeneous catalysts are easy to recycle, and can be highly active and selective. Furthermore they are amenable to systematic design. We find the most interesting results when heterobimetallic systems, such as the Sonogashira Pd/Cu catalyst for the coupling of aryl halides and terminal alkynes, are involved. Effective immobilization requires a thorough understanding of the surface chemistry of the oxide support materials (2). Therefore, we investigate not only the reactivity of metal complexes and linkers, but also their mobility on the surfaces.
The most powerful analytical tool for investigating amorphous materials is solid-state NMR spectroscopy (3). We optimized this method especially for surface-bound species, enabling us to study reactions on surfaces, or analyze the nature of our anchored linkers and catalysts.
These different research areas provide my students with a strong multidisciplinary background, spanning from synthetic chemistry, through materials sciences and catalysis, to surface analytical methods including solid-state NMR spectroscopy. Our expertise in these fields has led to many industrial contacts and collaborations.
- Arp, F. F., Bhuvanesh, N., & Blumel, J. (2019). Hydrogen peroxide adducts of triarylphosphine oxides. Dalton transactions (Cambridge, England : 2003). 48(38), 14312-14325.
- Arp, F. F., Ahn, S. H., Bhuvanesh, N., & Blumel, J. (2019). Selective synthesis and stabilization of peroxides via phosphine oxides. NEW JOURNAL OF CHEMISTRY. 43(44), 17174-17181.
- Kharel, S., Cluff, K. J., Bhuvanesh, N., Gladysz, J. A., & Blumel, J. (2019). Structures and Dynamics of Secondary and Tertiary Alkylphosphine Oxides Adsorbed on Silica. CHEMISTRY-AN ASIAN JOURNAL. 14(15), 2704-2711.
- Guenther, J., Reibenspies, J., & Blumel, J. (2019). Synthesis and characterization of tridentate phosphine ligands incorporating long methylene chains and ethoxysilane groups for immobilizing molecular rhodium catalysts. Molecular Catalysis. 479, 109-122.
- Kharel, S., Jia, T., Bhuvanesh, N., Reibenspies, J. H., Blumel, J., & Gladysz, J. A. (2018). A Nontemplated Route to Macrocyclic Dibridgehead Diphosphorus Compounds: Crystallographic Characterization of a \"Crossed-Chain\" Variant of in/out Stereoisomers. CHEMISTRY-AN ASIAN JOURNAL. 13(18), 2632-2640.
- Angle, K., Eberle, F., & Bluemel, J. (2018). H2O2 adducts of phosphine oxides: Safe, solid, stoichiometric, and soluble new oxidizing agents. ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY. 255,
- Bluemel, J. (2018). Solid-state NMR spectroscopy for the comprehensive structural and dynamic characterization of covalently bound and surface-adsorbed catalysts. ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY. 255,
- Bluemel, J., & Pope, J. (2017). Immobilized Sonogashira catalyst systems. ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY. 253,
- Bluemel, J., & Cluff, K. (2017). Metallocenes adsorbed on silica and activated carbon: Solid-State NMR and catalysis. ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY. 253,
- Bluemel, J., & Pope, J. (2017). Moisture distribution in PEEK, PEKK, PBI, and their blends: A multinuclear solid-state NMR study. ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY. 253,
- Pope, Jacqueline Christine (2014-12). Multinuclear Solid-State NMR Studies of Polymers and Immobilized Sonogashira Catalysts for Cross-Coupling Reactions. (Doctoral Dissertation)
- Hilliard, Casie Renee (2013-12). Diphosphine Dioxide Cages and Hydrogen Peroxide Adducts of Phosphine Oxides: Syntheses and Applications in Surface Science. (Doctoral Dissertation)
- Guenther, Johannes 1983- (2012-12). Tridentate Phosphine Linkers for Immobilized Catalysts: Development and Characterization of Immobilized Rhodium Complexes and Solid-State NMR Studies of Polymers. (Doctoral Dissertation)