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.
- Hubbard, P. J., Benzie, J. W., Bakhmutov, V. I., & Blümel, J. (2020). Disentangling different modes of mobility for triphenylphosphine oxide adsorbed on alumina.. The Journal of Chemical Physics. 152(5), 054718-054718.
- Arp, F. F., Bhuvanesh, N., & Blümel, J. (2019). Hydrogen peroxide adducts of triarylphosphine oxides. Dalton transactions (Cambridge, England : 2003). 48(38), 14312-14325.
- Kharel, S., Bhuvanesh, N., Gladysz, J. A., & Blümel, J. (2019). New Hydrogen Bonding Motifs of Phosphine Oxides with a Silanediol, a Phenol, and Chloroform. INORGANICA CHIMICA ACTA-ARTICLES AND LETTERS. 490, 215-219.
- Arp, F. F., Ahn, S. H., Bhuvanesh, N., & Blümel, 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., & Blümel, J. (2019). Structures and Dynamics of Secondary and Tertiary Alkylphosphine Oxides Adsorbed on Silica. CHEMISTRY-AN ASIAN JOURNAL. 14(15), 2704-2711.
- Angle, K., Eberle, F., & Bluemel, J. (2018). H2O2 adducts of phosphine oxides: Safe, solid, stoichiometric, and soluble new oxidizing agents. ACS Photonics. 255,
- Bluemel, J. (2018). Solid-state NMR spectroscopy for the comprehensive structural and dynamic characterization of covalently bound and surface-adsorbed catalysts. ACS Photonics. 255,
- Bluemel, J., & Pope, J. (2017). Immobilized Sonogashira catalyst systems. ACS Photonics. 253,
- Bluemel, J., & Cluff, K. (2017). Metallocenes adsorbed on silica and activated carbon: Solid-State NMR and catalysis. ACS Photonics. 253,
- Bluemel, J., & Pope, J. (2017). Moisture distribution in PEEK, PEKK, PBI, and their blends: A multinuclear solid-state NMR study. ACS Photonics. 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)