Publikationen

Angew. Chem. 2018, 130 ,14477 –14481
© HK

In den Super- und den Sodalith-Käfigen von Zeolith H,Na-Y wurde jeweils ein Paar von Brønsted-Säurezentren identifiziert, die durch Ultrastabilisierung (Dealuminierung) in Paare von Brønsted- und Lewis-Säurezentren umgewandelt wurden. Diese milde postsynthetische Behandlung ist ein wichtiger Prozess, um den Katalysator für industrielle Anwendungen zu optimieren. Die Paare wurden mit Hilfe von 1H-Doppelquanten-NMR-Experimenten am dehydratisierten Zeolithen H,Na-Y und dessen ultrastabilisierter Form H,Na-USY untersucht. Diese Methode ermöglicht den Nachweis von Brønsted- und Lewis-Säurepaaren und deren Unterscheidung von isolierten Säurezentren mit bisher unerreichter Auflösung. Die Dealuminierung wurde außerdem durch statische 27Al-Festkörper-NMR-Experimente beobachtet.

  • Reviews

    • Selectivities in Post-Synthetic Modification of Borosilicate Zeolites
      Hubert Koller, Cong-Yan Chen, and Stacey I. Zones Top. Catal. 58 (2015), 451-479.
      DOI: 10.1007/s11244-015-0382-0
    • Solid State NMR of Porous Materials - Zeolites and Related Materials (invited review),
      Hubert Koller and Mark Weiß, Top. Curr. Chem. 306 (2012), 189-227.
      DOI: 10.1007/128_2011_123
    • New Developments of NMR Spectroscopy Applied to Zeolite Catalysts
      Hubert Koller, Stud. Surf. Sci. Catal. 149 (2004), 105-122.
      DOI: 10.1016/S0167-2991(04)80758-4
    • The Dynamics of Hydrogen Bonds and Proton Transfer in Zeolites - Joint Vistas from Solid-State NMR and Quantum Chemistry
      Hubert Koller, Günter Engelhardt, Rutger A. van Santen, Top. Catal. 9 (1999), 163-180.
      DOI: 10.1023/A:1019131126634
    • 29Si NMR of Inorganic Solids
      Günter Engelhardt, Hubert Koller, NMR - Basic Principles and Progress 31 (1994), 1-29.
       DOI: 10.1007/978-3-642-50049-7_1

  • 2020 -

    • Schroeder, C.; Zones, S. I.; Hansen, M. R.; Koller, H., Hydrogen Bonds Dominate Brønsted Acid Sites in Zeolite SSZ-42 – A Classification of Their Diversity. Angew. Chem. Int. Ed. 2021, accepted. 10.1002/anie.202109313
    • Schroeder, C.; Zones, S. I.; Mück-Lichtenfeld, C.; Hansen, M. R.; Koller, H., High Aluminum Ordering in SSZ-59: Residual 1H–27Al Dipolar Coupling Effects in 1H MAS NMR Spectra of Brønsted Acid Sites in Zeolites. J. Phys. Chem. C 2021, 125, 4869-4877. 10.1021/acs.jpcc.0c11379.
    • Grosso-Giordano, N. A.; Schroeder, C.; Xu, L.; Solovyov, A.; Small, D. W.; Koller, H.; Zones, S. I.; Katz, A., Characterization of a Molecule Partially Confined at the Pore Mouth of a Zeotype. Angew. Chem. Int. Ed. 2021, 60, 10239-10246. 10.1002/anie.202100166.
    • Schroeder, C.; Siozios, V.; Mück-Lichtenfeld, C.; Hunger, M.; Hansen, M. R.; Koller, H., Hydrogen Bond Formation of Bronsted Acid Sites in Zeolites. Chem. Mater. 2020, 32, 1564-1574. 10.1021/acs.chemmater.9b04714.
    • Schroeder, C.; Siozios, V.; Hunger, M.; Hansen, M. R.; Koller, H., Disentangling Bronsted Acid Sites and Hydrogen-Bonded Silanol Groups in High-Silica Zeolite H-ZSM-5. J. Phys. Chem. C 2020, 124, 23380-23386. 10.1021/acs.jpcc.0c06113.
    • Schroeder, C.; Mück-Lichtenfeld, C.; Xu, L.; Grosso-Giordano, N. A.; Okrut, A.; Chen, C. Y.; Zones, S. I.; Katz, A.; Hansen, M. R.; Koller, H., A Stable Silanol Triad in The Zeolite Catalyst SSZ-70. Angew. Chem. Int. Ed. 2020, 59, 10939-10943. 10.1002/anie.202001364.

  • 2010 - 2019

    • Schroeder, C.; Hansen, M. R.; Koller, H., Ultrastabilization of Zeolite Y Transforms Brønsted–Brønsted Acid Pairs into Brønsted–Lewis Acid Pairs. Angew. Chem. Int. Ed. 2018, 57, 14281-14285. 10.1002/anie.201808395.
    • Grosso-Giordano, N. A.; Schroeder, C.; Okrut, A.; Solovyoy, A.; Schöttle, C.; Chassé, W.; Marinkoyic, N.; Koller, H.; Zones, S. I.; Katz, A., Outer-Sphere Control of Catalysis on Surfaces: A Comparative Study of Ti(IV) Single-Sites Grafted on Amorphous versus Crystalline Silicates for Alkene Epoxidation. J. Am. Chem. Soc. 2018, 140, 4956-4960. 10.1021/jacs.7b11467.
    • Koller, H.; Uesbeck, T.; Hansen, M. R.; Hunger, M., Characterizing the First and Second 27Al Neighbors of Brønsted and Lewis Acid Protons in Zeolites and the Distribution of 27Al Quadrupolar Couplings by 1H{27Al} Offset REAPDOR. J. Phys. Chem. C 2017, 121, 25930-25940. 10.1021/acs.jpcc.7b09544.
    • Koller, H.; Senapati, S.; Ren, J. J.; Uesbeck, T.; Siozios, V.; Hunger, M.; Lobo, R. F., Post-Synthesis Conversion of Borosilicate Zeolite Beta to an Aluminosilicate with Isolated Acid Sites: A Quantitative Distance Analysis by Solid-State NMR. J. Phys. Chem. C 2016, 120, 9811-9820. 10.1021/acs.jpcc.6b01680.
    • Brunklaus, G.; Koller, H.; Zones, S. I., Defect Models of As-Made High-Silica Zeolites: Clusters of Hydrogen-Bonds and Their Interaction with the Organic Structure-Directing Agents Determined from 1H Double and Triple Quantum NMR Spectroscopy. Angew. Chem. Int. Ed. 2016, 55, 14459-14463. 10.1002/anie.201607428.
    • Koller, H.; Chen, C. Y.; Zones, S. I., Selectivities in Post-Synthetic Modification of Borosilicate Zeolites. Top. Catal. 2015, 58, 451-479. 10.1007/s11244-015-0382-0.
    • Dyballa, M.; Obenaus, U.; Lang, S.; Gehring, B.; Traa, Y.; Koller, H.; Hunger, M., Bronsted Sites and Structural Stabilization Effect of Acidic Low-Silica Zeolite A Prepared by Partial Ammonium Exchange. Micropor. Mesopor. Mater. 2015, 212, 110-116. 10.1016/j.micromeso.2015.03.030.
    • Senapati, S.; Zimdars, J.; Ren, J.; Koller, H., Post-Synthetic Modifications of As-Made Zeolite Frameworks Near The Structure-Directing Agents. J. Mater. Chem. A 2014, 2, 10470-10484. 10.1039/c4ta00656a.
    • Tong, H. T. T.; Koller, H., Control of Al for B framework substitution in zeolite Beta by counterions. Micropor. Mesopor. Mater. 2012, 148, 80-87. 10.1016/j.micromeso.2011.07.021.
    • Koller, H.; Weiß, M., Solid State NMR of Porous Materials: Zeolites and Related Materials. In Top. Curr. Chem., Chan, J. C. C., Ed. Springer: Berlin, 2012; Vol. 306, pp 189-227. 10.1007/128_2011_123.
    • Hould, N. D.; Senapati, S.; Koller, H.; Lobo, R. F., Effect of Al on Zeolite Beta Solid State Chemistry. Top. Catal. 2012, 55, 1332-1343. 10.1007/s11244-012-9914-z.
    • Ulke, S.; Koller, H., Microheterogeneity in phenyl group modified inorganic/organic hybrid gels after aerosol drying or slow solvent evaporation. Solid State Nucl. Magn. Reson. 2011, 39, 142-150. 10.1016/J.SSNMR.2011.03.005
    • Heimink, J.; Sieger, P.; Koller, H., Two-Dimensional pH Mapping of Release Kinetics of Silica-Encapsulated Drugs. J. Pharm. Sci. 2011, 100, 4401-4412. 10.1002/jps.22593.
    • Wichner, N. M.; Ghavtadze, N.; Wurthwein, E. U.; Koller, H., Imprinting With Phenyl Group Interactions: A Case Study of the Hybrid Sol-Gel Encapsulation of the Complex {Na[Ph2P(O)-CH2-P(O)Ph2]3}+ . Phys. Chem. C 2010, 114, 22590-22596. 10.1021/jp107581g.
    • Wichner, N. M.; Beckers, J.; Rothenberg, G.; Koller, H., Preventing sintering of Au and Ag nanoparticles in silica-based hybrid gels using phenyl spacer groups. J. Mater. Chem. 2010, 20, 3840-3847. 10.1039/c000105h.

  • 2000 - 2009

    • Lezhnina, M. M.; Jordan, E.; Klimin, S. A.; Lons, J.; Koller, H.; Mavrin, B. N.; Kynast, U., Fluoride Containing Guest Species in Alumosilicates: Tetrafluoroborate in the Sodalite Na8(Al6Si6O24)(BF4)2. Z. Anorg. Allg. Chem. 2009, 635, 450-455. 10.1002/zaac.200801112.
    • Paul, G.; Heimink, J.; Koller, H., Controlling drug release of sol-gel encapsulated Persantin and propranolol by surface interactions. Chem. Mater. 2008, 20, 5083-5089. 10.1021/cm8000267.
    • Paul, G.; Steuernagel, S.; Koller, H., Non-covalent interactions of a drug molecule encapsulated in a hybrid silica gel. Chem. Commun. 2007, 5194-5196. 10.1039/b711105c.
    • Koller, H.; Jordan, E.; Wilmer, D., Matrix effect on motional coupling and long-range transport of cations in zeolites. Angew. Chem. Int. Ed. 2007, 46, 3359-3362. 10.1002/anie.200605049.
    • Jordan, E.; Bell, R. G.; Wilmer, D.; Koller, H., Anion-promoted cation motion and conduction in zeolites. J. Am. Chem. Soc. 2006, 128, 558-567. 10.1021/ja0551887.
    • Bögershausen, A.; Pas, S. J.; Hill, A. J.; Koller, H., Drug release from self-assembled inorganic-organic hybrid gels and gated porosity detected by positron annihilation lifetime spectroscopy. Chem. Mater. 2006, 18, 664-672. 10.1021/cm051859o.
    • Wiebcke, M.; Bögershausen, A.; Koller, H., Hydrothermal synthesis, crystal structure and thermal behaviour of a zincoborophosphate, (H4TETA)1.5[Zn6B6P12O48] . 1.5H2O (TETA = triethylenetetraamine), with a chiral tetrahedral framework (CZP framework type). Microporous Mesoporous Mater. 2005, 78, 97-102. 10.1016/j.micromeso.2004.09.020
    • Koller, H.; Fild, C.; Lobo, R. F., Variable anchoring of boron in zeolite beta. Micropor. Mesopor. Mat. 2005, 79, 215-224. 10.1016/j.micromeso.2004.10.035.
    • Koller, H.; Kalwei, M., Studying ionic motion in tetrahydroxoborate sodalite by second moment analysis using Na-23{B-11} rotational echo double resonance data. J. Phys. Chem. B 2004, 108, 58-63. 10.1021/jp030536h.
    • Koller, H., An improved 1H NMR spectra interpretation of B and Al zeolites with dipolar methods. Recent Advances in the Science and Technology of Zeolites and Related Materials, Pts a - C 2004, 154, 1380-1384. 10.1016/S0167-2991(04)80653-0.
    • Koller, H., New developments of NMR spectroscopy applied to zeolite catalysts. Fluid Catalytic Cracking Vi: Preparation and Characterization of Catalysts 2004, 149, 105-122. 10.1016/S0167-2991(04)80758-4.
    • Jordan, E.; Koller, H., Cation dynamics in zeolites studied by MAS-NMR. Recent Advances in the Science and Technology of Zeolites and Related Materials, Pts a - C 2004, 154, 1555-1559. 10.1016/S0167-2991(04)80677-3
    • Barrett, P. A.; Boix, T.; Puche, M.; Olson, D. H.; Jordan, E.; Koller, H.; Camblor, M. A., ITQ-12: a new microporous silica polymorph potentially useful for light hydrocarbon separations. Chem. Commun. 2003, 2114- 2115. 10.1039/b306440a.
    • van Wüllen, L.; Koller, H.; Kalwei, M., Modern solid state double resonance NMR strategies for the structural characterization of adsorbate complexes involved in the MTG process. PCCP 2002, 4, 1665-1674. 10.1039/b108999b.
    • Kalwei, M.; Koller, H., Quantitative Comparison of REAPDOR and TRAPDOR Experiments by Numerical Simulations and Determination of H–Al Distances in Zeolites. Solid State Nucl. Magn. Reson. 2002, 21, 145-157. 10.1006/snmr.2002.0055.
    • Villaescusa, L. A.; Barrett, P. A.; Kalwei, M.; Koller, H.; Camblor, M. A., Synthesis and Physicochemical Characterization of an Aluminosilicate Zeolite with IFR Topology, Prepared by the Fluoride Route. Chem. Mater. 2001, 13, 2332-2341. 10.1021/cm001180e.
    • Koller, H.; Kalwei, M.; Fild, C.; Lobo, R. F.; Camblor, M. A.; Villaescusa, L. A.; van Wüllen, L., 13-O-01-Where are the acid sites in zeolites? A novel NMR approach to measure B/Al ordering around structure directing agents. In Stud. Surf. Sci. Catal., Galarneau, A.; Fajula, F.; Di Renzo, F.; Vedrine, J., Eds. Elsevier: 2001; Vol. 135, p 182. 10.1016/S0167-2991(01)81341-0.
    • Kentgens, A. P. M.; Iuga, D.; Kalwei, M.; Koller, H., Direct Observation of Bronsted Acidic Sites in Dehydrated Zeolite H-ZSM5 Using DFS-Enhanced 27Al MQMAS NMR Spectroscopy. J. Am. Chem. Soc. 2001, 123, 2925-2926. 10.1021/ja005917c.
    • Camblor, M. A.; Barrett, P. A.; Diaz-Cabanas, M. J.; Villaescusa, L. A.; Puche, M.; Boix, T.; Perez, E.; Koller, H., High silica zeolites with three-dimensional systems of large pore channels. Microporous Mesoporous Mater. 2001, 48, 11-22. 10.1016/S1387-1811(01)00325-0.
    • Shantz, D. F.; Schmedt a.d. Günne, J.; Koller, H.; Lobo, R. F., Multiple-Quantum 1H MAS NMR Studies of Defect Sites in As-Made All-Silica ZSM-12 Zeolite. J. Am. Chem. Soc. 2000, 122, 6659-6663. 10.1021/ja000374s.
    • Fild, C.; Shantz, D. F.; Lobo, R. F.; Koller, H., Cation-induced transformation of boron-coordination in zeolites. Phys. Chem. Chem. Phys. 2000, 2, 3091-3098. 10.1039/b002134m.
    • Fild, C.; Eckert, H.; Koller, H., Charge-induced partial ordering of boron around structure directing agents in zeolites observed by C-13{B-11} rotational echo double resonance NMR. J. Am. Chem. Soc. 2000, 122, 12590-12591. 10.1021/ja005609e.
    • Cho, H. H.; Kim, S. H.; Kim, Y. G.; Kim, Y. C.; Koller, H.; Camblor, M. A.; Hong, S. B., Synthesis and characterization of gallosilicate molecular sieves with high gallium contents: Examples of structure direction exerted by gallium. Chem. Mater. 2000, 12, 2292-2300. 10.1021/cm0001051.

  • 1990 - 1999

    • Wirnsberger, G.; Fritzer, H. P.; Koller, H.; Behrens, P.; Popitsch, A., Intermolecular interactions of inorganic and organic molecules embedded in zeolite-type materials probed by near-infrared Fourier transform Raman spectroscopy. J. Mol. Struct. 1999, 481, 699-704. 10.1016/S0022-2860(98)00725-X.
    • Shantz, D. F.; Fild, C.; Koller, H.; Lobo, R. F., Guest-Host Interactions in As-made Al-ZSM-12: Implications for the Synthesis of Zeolite Catalysts. J. Phys. Chem. B 1999, 103, 10858-10865. 10.1021/jp992549u.
    • Overweg, A. R.; Koller, H.; de Haan, J. W.; van de Ven, L. J. M.; van der Kraan, A. M.; van Santen, R. A., Ferrocene and dicarlbonylcyclopentadienylcobalt in faujasite-type zeolites: A study of molecular motion. J. Phys. Chem. B 1999, 103, 4298-4308. 10.1021/jp984517x.
    • Koller, H.; Wölker, A.; Villaescusa, L. A.; Diaz-Cabanas, M. J.; Valencia, S.; Camblor, M. A., Five-coordinate silicon in high-silica zeolites. J. Am. Chem. Soc. 1999, 121, 3368-3376. 10.1021/ja9840549.
    • Koller, H.; Engelhardt, G.; van Santen, R. A., The dynamics of hydrogen bonds and proton transfer in zeolites - joint vistas from solid-state NMR and quantum chemistry. Top. Catal. 1999, 9, 163-180. 10.1023/A:1019131126634.
    • Engelhardt, G.; Kentgens, A. P. M.; Koller, H1997.; Samoson, A., Strategies for extracting NMR parameters from Na-23 MAS, DOR and MQMAS spectra. A case study for Na4P2O7. Solid State Nucl. Magn. Reson. 1999, 15, 171-180. 10.1016/S0926-2040(99)00054-5.
    • Fild, C.; Eckert, H.; Koller, H., Evidence for selective association of tetrahedral BO4 units with Na+ and of trigonal BO3 units with H+ in dehydrated zeolite B-ZSM-5 from solid-state NMR spectroscopy. Angew. Chem. Int. Ed. 1998, 37, 2505-2507. 10.1002/(SICI)1521-3773(19981002)37:18<2505::AID-ANIE2505>3.0.CO;2-F
    • Koller, H.; Wölker, A.; Eckert, H.; Panz, C.; Behrens, P., Five-coordinate silicon in zeolites: Probing SiO4/2F- sites in nonasil and ZSM-5 with Si-29 solid-state NMR spectroscopy. Angew. Chem. Int. Ed. 1997, 36, 2823-2825. 10.1002/anie.199728231.
    • Koller, H.; Overweg, A. R.; van Santen, R. A.; de Haan, J. W., C-13 and Na-23 solid-state NMR study on zeolite Y loaded with Mo(CO)6. J. Phys. Chem. B 1997, 101, 1754-1761. 10.1021/jp962791q.
    • Koller, H.; Overweg, A. R.; van de Ven, L. J. M .; de Haan, J. W.; van Santen, R. A., Mechanisms of molecular motion of Mo(CO)6 in zeolites NaY and HY from C-13-NMR lineshapes. Microporous Mater. 1997, 11, 9-10.1016/S0926-2040(97)80141-517. 10.1016/S0927-6513(97)00026-6.
    • Koller, H.; Meijer, E. L.; van Santen, R. A., 27Al Quadrupole Interaction in Zeolites Loaded With Probe Molecules - A Quantum-Chemical Study of Trends in Electric Field Gradients and Chemical Bonds in Clusters. Solid State Nucl. Magn. Reson. 1997, 9, 165-175. 10.1016/S0926-2040(97)00056-8.
    • Koller, H., Scientific biography of Dr. Günter Engelhardt. Solid State Nucl. Magn. Reson. 1997, 9, Ix-+. 10.1016/S0926-2040(97)80141-5
    • Koller, H.; Lobo, R. F.; Burkett, S. L.; Davis, M. E., SIO...HOSI Hydrogen-Bonds in As-Synthesized High-Silica Zeolites. J. Phys. Chem. 1995, 99, 12588-12596. 10.1021/j100033a036.
    • Koller, H.; Engelhardt, G.; Felsche, J., VARIABLE-TEMPERATURE H-1, NA-23, AND SI-29 MAS NMR-STUDIES ON SODIUM-SILICATE HYDRATES OF COMPOSITION NA2O.SIO2.nH2O (n=9, 6, 5) - LOCAL-STRUCTURE IN CRYSTALS, MELTS, SUPERCOOLED MELTS, AND GLASSES. Z. Anorg. Allg. Chem. 1995, 621, 301-310. 10.1002/zaac.19956210217.
    • Koller, H.; Burger, B.; Schneider, A. M.; Engelhardt, G.; Weitkamp, J., Location of Na+ and Cs+ cations in CsNaY zeolites studied by Na-23 and Cs-133 magic-angle spinning nuclear magnetic resonance spectroscopy combined with X-ray structure analysis by Rietveld refinement. Microporous Mater. 1995, 5, 219-232. 10.1016/0927-6513(95)00061-5.
    • Koller, H.; Engelhardt, G.; Kentgens, A. P. M.; Sauer, J., 23Na NMR Spectrocopy of Solids - Interpretation of Quadrupole Interaction Parameters and Chemical Shifts. J. Phys. Chem. 1994, 98, 1544-1551. 10.1021/j100057a004.
    • Engelhardt, G.; Koller, H., 29Si NMR of Inorganic Solids. In Solid-State NMR II: Inorganic Matter, Blümich, B., Ed. Springer Berlin Heidelberg: Berlin, Heidelberg, 1994; pp 1-29. 10.1007/978-3-642-50049-7_1.
    • Engelhardt, G.; Hunger, M.; Koller, H.; Weitkamp, J., Exploring Cation Siting in Zeolites by Solid-State NMR of Quadrupolar Nuclei. In Stud. Surf. Sci. Catal., Weitkamp, J.; Karge, H. G.; Pfeifer, H.; Hölderich, W., Eds. Elsevier: 1994; Vol. 84, pp 421-428.23. 10.1016/S0167-2991(08)64141-5.
    • Camblor, M. A.; Lobo, R. F.; Koller, H.; Davis, M. E., Synthesis and Characterization of Zincosilicates with the Sod Topology. Chem. Mater. 1994, 6, 2193-2199. 10.1021/cm00047a046.
    • Wiebcke, M.; Grube, M.; Koller, H.; Engelhardt, G.; Felsche, J., Structural Links between Zeolite-Type and Clathrate Hydrate-Type Materials - Redetermination of the Crystal-Structure of [N(CH3)4]8[Si8O20].65H2O by Single-Crystal X-Ray-Diffraction and Variable-Temperature MAS NMR Spectroscopy. Microporous Mater. 1993, 2, 55-63. 10.1016/0927-6513(93)80062-Y.
    • Hunger, M.; Engelhardt, G.; Koller, H.; Weitkamp, J., Characterization of Sodium-Cations in Dehydrated Faujasites and Zeolite Emt by 23Na DOR, 2D Nutation, and MAS NMR. Solid State Nucl. Magn. Reson. 1993, 2, 111-120. 10.1016/0926-2040(93)90029-M.
    • Wiebcke, M.; Koller, H., Single-Crystal X-Ray-Diffraction and Variable-Temperature MAS NMR Study on the Heterogeneous Network Clathrate Na[N(CH3)4]7[Si8O20].54H2O. Acta Crystallogr. B 1992, 48, 449-458. 10.1107/S0108768192001149.
    • Engelhardt, G.; Koller, H.; Sieger, P.; Depmeier, W.; Samoson, A., Al-27 and Na-23 double-rotation NMR of sodalites. Solid State Nucl. Magn. Reson. 1992, 1, 127-135. 10.1016/0926-2040(92)90013-Y.
    • Engelhardt, G.; Koller, H., A Simple Procedure for the Determination of the Quadrupole Interaction Parameters and Isotropic Chemical-Shifts from Magic Angle Spinning Nmr-Spectra of Half-Integer Spin Nuclei in Solids. Magn. Reson. Chem. 1991, 29, 941-945. 10.1002/mrc.1260290914.
    • Koller, H.; Engelhardt, G.; Felsche, J., 29Si NMR Studies of the Transformation of Silicate Anions in the System Na2O.SiO2.nH2O (n=9,5) in Crystals, Melts, and Solution. J. Chem. Soc. Chem. Commun. 1990, 371-372. 10.1039/c39900000371.

  • Vollständige Publikationsliste

    Publikationen

    • Schroeder C, Zones SI, Mück-Lichtenfeld C, Hansen MR, Koller H.High Aluminum Ordering in SSZ-59: Residual 1H-27Al Dipolar Coupling Effects in 1H MAS NMR Spectra of Brønsted Acid Sites in Zeolites.’ J. Phys. Chem. C 125 (): 4869–4877. doi: 10.1021/acs.jpcc.0c11379.
    • Grosso-Giordano NA, Schroeder C, Xu L, Solovyov A, Small DW, Koller H, Zones SI, Katz A.Characterization of a Molecule Partially Confined at the Pore Mouth of a Zeotype.’ Angewandte Chemie Int. Ed. 60 (): 10239-10246. doi: 10.1002/anie.202100166.
    • Schroeder Christian, Siozios Vassilios, Hunger Michael, Hansen Michael Ryan, Koller Hubert.Disentangling Brønsted Acid Sites and Hydrogen-Bonded Silanol Groups in High-Silica Zeolite H-ZSM-5.’ J. Phys. Chem. C 124 (): 23380–23386. doi: 10.1021/acs.jpcc.0c06113.
    • Schroeder C., Mück-Lichtenfeld C., Xu L., Grosso-Giordano N.A., Okrut A., Chen C.Y., Zones S.I., Katz A., Hansen M.R., Koller H.A Stable Silanol Triad in the Zeolite Catalyst SSZ-70.’ Angew. Chem. Int. Ed. 59 (): 10939 –10943. doi: 10.1002/anie.202001364.
    • Schroeder C, Siozios V, Mück-Lichtenfeld C, Hunger M, Hansen MR, Koller H.Hydrogen Bond Formation of Brønsted Acid Sites in Zeolites.’ Chem. Mater. 32 (): 1564-1574. doi: 10.1021/acs.chemmater.9b04714.
    • Schroeder Christian, Hansen Michael R., Koller Hubert.Ultrastabilization of Zeolite Y Transforms Brønsted–Brønsted Acid Pairs into Brønsted–Lewis Acid Pairs.’ Angew. Chem. Int. Ed. 57 (): 14281 –14285. doi: 10.1002/anie.201808395.
    • Nicolas A. Grosso-Giordano, Christian Schroeder, Alexander Okrut, Andrew Solovyov, Christian Schottle, Walter Chassé, Nebojsa Marinkovic, Hubert Koller, Stacey I. Zones, Alexander Katz.Outer-Sphere Control of Catalysis on Surfaces: A Comparative Study of Ti(IV) Single-Sites Grafted on Amorphous versus Crystalline Silicates for Alkene Epoxidation.’ J. Am. Chem. Soc. 140 (): 4956-4960. doi: 10.1021/jacs.7b11467.
    • Koller Hubert, Uesbeck Tobias, Hansen Michael Ryan, Hunger Michael.Characterizing the First and Second 27Al Neighbors of Bronsted and Lewis Acid Protons in Zeolites and the Distribution of 27Al Quadrupolar Couplings by 1H{27Al} Offset REAPDOR.’ J. Phys. Chem. C 121 (): 25930–25940. doi: 10.1021/acs.jpcc.7b09544.
    • Hubert Koller, Soumya Senapati, Jinjun Ren, Tobias Uesbeck, Vassilios Siozios, Michael Hunger, Raul F. Lobo.Post-Synthesis Conversion of Borosilicate Zeolite Beta To An Aluminosilicate With Isolated Acid Sites: A Quantitative Distance Analysis By Solid-State NMR.’ J. Phys. Chem. C 120 (): 9811–9820. doi: 10.1021/acs.jpcc.6b01680.
    • Gunther Brunklaus, Hubert Koller, Stacey I. Zones.Defect Models of As-Made High-Silica Zeolites: Hydrogen Bond Clusters and Their Interaction with the Organic Structure-Directing Agents Determined from 1H Double and Triple Quantum NMR Spectroscopy.’ Angew. Chem. Int. Ed. 55 (): 14459-14463. doi: 10.1002/anie.201607428.
    • Hubert Koller, Cong-Yan Chen, Stacey I. Zones.Selectivities in Post-Synthetic Modification of Borosilicate Zeolites.’ Top. Catal. 58 (): 451-479. doi: 10.1007/s11244-015-0382-0.
    • Michael Dyballa, Utz Obenaus, Swen Lang, Barbara Gehring, Yvonne Traa, Hubert Koller, Michael Hunger.Brønsted sites and structural stabilization effect of acidic zeolite LTA prepared by partial ammonium exchange.’ Micropor. Mesopor. Mater. 212 (): 110-116. doi: 10.1016/j.micromeso.2015.03.030.
    • Soumya Senapati, Julia Zimdars, Jinjun Ren, Hubert Koller.Post-synthetic modifications of as-made zeolite frameworks near the structure-directing agents.’ J. Mater. Chem. A 2, No. 27 (): 10470-10484. doi: 10.1039/c4ta00656a.
    • Huong Thi Thanh Tong, Hubert Koller.Control of Al for B framework substitution in zeolite Beta by counterions.’ Micropor. Mesopor. Mater. 148, No. 1 (): 80-87. doi: 10.1016/j.micromeso.2011.07.021.
    • Hubert Koller, Mark Weiß.Solid state NMR of porous materials: Zeolites and related materials.’ Top. Curr. Chem. 306 (): 189-228. doi: 10.1007/128_2011_123.
    • Nathan D. Hould, Soumya Senapati, Hubert Koller, Raul F. Lobo.Effect of Al on zeolite beta solid state chemistry.’ Top. Catal. 55, No. null (): 1332-1343. doi: 10.1007/s11244-012-9914-z.
    • Jan Heimink, Peter Sieger, Hubert Koller.Two-dimensional pH mapping of release kinetics of silica-encapsulated drugs.’ J. Pharm. Sci. 100, No. 10 (): 4401-4412. doi: 10.1002/jps.22593.
    • Nina M. Wichner, Juriaan Beckers, Gadi Rothenberg, Hubert Koller.Preventing sintering of Au and Ag nanoparticles in silica-based hybrid gels using phenyl spacer groups.’ J. Mater. Chem. 20, No. 19 (): 3840-3847. doi: 10.1039/c000105h.
    • Wichner N M, Ghavtadze N, Würthwein E-U, Koller K.Imprinting With Phenyl Group Interactions: A Case Study of the Hybrid Sol-Gel Encapsulation of the Complex {Na[Ph2P(O)-CH2-P(O)Ph-2](3)}(+).’ J. Phys. Chem. C 114, No. 51 (): 22590-22596. doi: 10.1021/jp107581g.
    • Marina M. Lezhnina, Edgar Jordan, Sergej A. Klimin, Jürgen Löns, Hubert Koller, Boris N. Mavrin, Ulrich Kynast.Fluoride containing guest species in alumosilicates: Tetrafluoroborate in the sodalite Na 8Al 6Si 6O 24(BF 4) 2 | Fluoridhaltige gäste in alumosilicaten: Tetrafluoroborate in dem sodalithen Na 8Al 6Si 6O 24(BF 4) 2.’ Z. Anorg. Allg. Chemie 635, No. 3 (): 450-455. doi: 10.1002/zaac.200801112.
    • Geo Paul, Jan Heimink, Hubert Koller.Controlling drug release of sol-gel encapsulated Persantin and propranolol by surface interactions.’ Chem. Mater. 20, No. 15 (): 5083-5089. doi: 10.1021/cm8000267.
    • Edgar Jordan, Dirk Wilmer, Hubert Koller.Matrix effect on motional coupling and long-range transport of cations in zeolites.’ Angew. Chem. Int. Ed. 46, No. 18 (): 3359-3362. doi: 10.1002/anie.200605049.
    • Geo Paul, Stefan Steuernagel, Hubert Koller.Non-covalent interactions of a drug molecule encapsulated in a hybrid silica gel.’ Chem. Commun. ?, No. 48 (): 5194-5196. doi: 10.1039/b711105c.
    • Ansgar Bögershausen, Steven J. Pas, Anita J. Hill, Hubert Koller.Drug release from self-assembled inorganic - Organic hybrid gels and gated porosity detected by positron annihilation lifetime spectroscopy.’ Chem. Mater. 18, No. 3 (): 664-672. doi: 10.1021/cm051859o.
    • Edgar Jordan, Robert G. Bell, Dirk Wilmer, Hubert Koller.Anion-promoted cation motion and conduction in zeolites.’ J. Am. Chem. Soc. 128, No. 2 (): 558-567. doi: 10.1021/ja0551887.
    • Hubert Koller, Christian Fild, Raul F. Lobo.Variable anchoring of boron in zeolite beta.’ Micropor. Mesopor. Mater. 79, No. 1-3 (): 215-224. doi: 10.1016/j.micromeso.2004.10.035.
    • Hubert Koller, Edgar Jordan, Dirk Wilmer, Robert G. Bell.Cationic motion and conduction in zeolites: Systematic study of anion effects on local motion and long range transport.’ Contribution to the Abstr. Pap. Am. Chem. Soc., San Diego, .
    • Hubert Koller, Ansgar Bögershausen, Geo Paul, Steven J. Pas, Monika Schönhoff, Anita J. Hill.Self-assembled inorganic-organic hybrid gels for controlled drug delivery - Synthesis, pore anomalies, and particle engineering.’ Contribution to the ACS National Meeting, San Diego, .
    • Hubert Koller.An improved 1H NMR spectra interpretation of B and Al zeolites with dipolar methods.’ Stud. Surf. Sci. Catal. 154 B (): 1380-1384. doi: 10.1016/S0167-2991(04)80653-0.
    • Hubert Koller, Martin Kalwei.Studying ionic motion in tetrahydroxoborate sodalite by second moment analysis using 23Na{11B} rotational echo double resonance data.’ J. Phys. Chem. B 108, No. 1 (): 58-63. doi: 10.1021/jp030536h.
    • Hubert Koller.New developments of NMR spectroscopy applied to zeolite catalysts.’ FLUID CATALYTIC CRACKING VI: PREPARATION AND CHARACTERIZATION OF CATALYSTS 149 (): 105-122. doi: 10.1016/S0167-2991(04)80758-4.
    • Edgar Jordan, Hubert Koller.Cation dynamics in zeolites studied by MAS-NMR.’ Contribution to the International Zeolite Conference, Cape Town, .
    • Philip A. Barrett, Téresa Boix, Marta Puche, David H. Olson, Edgar Jordan, Hubert Koller, Miguel A. Camblor.ITQ-12: a new microporous silica polymorph potentially useful for light hydrocarbon separations.’ Chem. Commun. 2003, No. 17 (): 2114-2115. doi: 10.1039/b306440a.
    • Leo van Wüllen, Hubert Koller, Martin Kalwei.Modern solid state double resonance NMR strategies for the structural characterization of adsorbate complexes involved in the MTG process.’ Phys. Chem. Chem. Phys. 4, No. 9 (): 1665-1674. doi: 10.1039/b108999b.
    • Martin Kalwei, Hubert Koller.Quantitative comparison of REAPDOR and TRAPDOR experiments by numerical simulations and determination of H-Al distances in zeolites.’ Solid State Nucl. Magn. Reson. 21, No. 3-4 (): 145-157. doi: 10.1006/snmr.2002.0055.
    • Luis A. Villaescusa, Philip A. Barrett, Martin Kalwei, Hubert Koller, Miguel A. Camblor.Synthesis and physicochemical characterization of an aluminosilicate zeolite with IFR topology, prepared by the fluoride route.’ Chem. Mater. 13, No. 7 (): 2332-2341. doi: 10.1021/cm001180e.
    • Miguel A. Camblor, Philip A. Barrett, María-José Díaz-Cabanas, Luis A. Villaescusa, Marta Puche, Teresa Boix, Eva Pérez, Hubert Koller.High silica zeolites with three-dimensional systems of large pore channels.’ Micropor. Mesopor. Mater. 48, No. 1-3 (): 11-22. doi: 10.1016/S1387-1811(01)00325-0.
    • Arno P. M. Kentgens, Dinu Iuga, Martin Kalwei, Hubert Koller.Direct observation of Bronsted acidic sites in dehydrated zeolite H-ZSM5 using DFS-enhanced Al-27 MQMAS NMR spectroscopy.’ J. Am. Chem. Soc. 123, No. 12 (): 2925-2926. doi: 10.1021/ja005917c.
    • Hubert Koller, Martin Kalwei, Christian Fild, Raul F. Lobo, Miguel A. Camblor, Luis A. Villaescusa, Leo van Wüllen. Where are the Acid Sites in Zeolites? A Novel NMR Approach to Measure B/Al Ordering around Structure Directing Agents In Zeolites and Mesoporous Materials at the dawn of the 21st century, Proceedings of the 13th International Zeolite Conference,, edited by A. Galarneau F. Fajula FDR, Vedrine J, 182. Elsevier, . doi: 10.1016/S0167-2991(01)81341-0.
    • Christian Fild, Daniel F. Shantz, Raul F. Lobo, Hubert Koller.Cation-induced transformation of boron-coordination in zeolites.’ Phys. Chem. Chem. Phys. 2, No. 13 (): 3091-3098. doi: 10.1039/b002134m.
    • Daniel F. Shantz, Jörn Schmedt auf der Günne, Hubert Koller, Raul F. Lobo.Multiple-quantum 1H MAS NMR studies of defect sites in as-made all- silica ZSM-12 zeolite.’ J. Am. Chem. Soc. 122, No. 28 (): 6659-6663. doi: 10.1021/ja000374s.
    • Shantz DF, Lobo RF, Fild C, Koller H.Controlling the distribution of framework aluminum in high-silica zeolites.’ Stud. Surf. Sci. Catal. 130 A (): 845-850. doi: 10.1016/S0167-2991(00)81064-2.
    • Fild C, Eckert H, Koller H.Charge-induced partial ordering of boron around structure directing agents in zeolites observed by C-13{B-11} rotational echo double resonance NMR.’ J. Am. Chem. Soc. 122, No. 50 (): 12590-12591. doi: 10.1021/ja005609e.
    • Hwan Hyung Cho, Sang Hern Kim, Young Gon Kim, Young Chai Kim, Hubert Koller, Miguel A. Camblor, Suk Bong Hong.Synthesis and characterization of gallosilicate molecular sieves with high gallium contents: Examples of structure direction exerted by gallium.’ Chem. Mater. 12, No. 8 (): 2292-2300. doi: 10.1021/cm0001051.
    • Koller H, Wölker A, Villaescusa LA, Díaz-Cabañas MJ, Valencia S, Camblor MA.Five-coordinate silicon in high-silica zeolites.’ J. Am. Chem. Soc. 121, No. 14 (): 3368-3376. doi: 10.1021/ja9840549.
    • Wirnsberger G, Fritzer HP, Koller H, Behrens P, Popitsch A.Intermolecular interactions of inorganic and organic molecules embedded in zeolite-type materials probed by near-infrared Fourier transform Raman spectroscopy.’ J. Mol. Struct. 480-481 (): 699-704. doi: 10.1016/S0022-2860(98)00725-X.
    • Engelhardt G, Kentgens APM, Koller H, Samoson A.Strategies for extracting NMR parameters from Na-23 MAS, DOR and MQMAS spectra. A case study for Na4P2O7.’ Solid State Nucl. Magn. Reson. 15, No. 3 (): 171-180. doi: 10.1016/S0926-2040(99)00054-5.
    • Shantz DF, Fild C, Koller H, Lobo RF.Guest - Host Interactions in As-Made Al-ZSM-12: Implications for the Synthesis of Zeolite Catalysts.’ J. Phys. Chem. B 103, No. 49 (): 10858-10865. doi: 10.1021/jp992549u.
    • Overweg AR, Koller H, De Haan JW, Van De Ven LJM, Van Der Kraan AM, Van Santen RA.Ferrocene and dicarbonylcyclopentadienylcobalt in faujasite-type zeolites: A study of molecular motion.’ J. Phys. Chem. B 103, No. 21 (): 4298-4308. doi: 10.1021/jp984517x.
    • Koller H, Engelhardt G, Van Santen RA.The dynamics of hydrogen bonds and proton transfer in zeolites - Joint vistas from solid-state NMR and quantum chemistry.’ Top. Catal. 9, No. 3-4 (): 163-180. doi: 10.1023/A:1019131126634.
    • Fild C, Eckert H, Koller H.Evidence for selective association of tetrahedral BO4 units with Na+ and of trigonal BO3 units with H+ in dehydrated zeolite B-ZSM-5 from solid-state NMR spectroscopy.’ Angew. Chem. Int. Ed. 37, No. 18 (): 2505-2507. doi: 10.1002/(SICI)1521-3773(19981002)37:182505::AID-ANIE2505>3.0.CO;2-F.
    • Koller H, Meijer EL, Van Santen RA.27Al quadrupole interaction in zeolites loaded with probe molecules - A quantum-chemical study of trends in electric field gradients and chemical bonds in clusters.’ Solid State Nucl. Magn. Reson. 9, No. 2-4 (): 165-175. doi: 10.1016/S0926-2040(97)00056-8.
    • Koller H, Overweg AR, Van Santen RA, De Haan JW.13C and 23Na solid-state NMR study on zeolite Y loaded with Mo(CO)6.’ J. Phys. Chem. B 101, No. 10 (): 1754-1761. doi: 10.1021/jp962791q.
    • Koller H, Overweg AR, Van De Ven LJM, De Haan JW, Van Santen RA.Mechanisms of molecular motion of Mo(CO)6 in zeolites NaY and HY from 13C-NMR lineshapes.’ Micropor. Mater. 11, No. 1-2 (): 9-17. doi: 10.1016/S0927-6513(97)00026-6.
    • Koller H, Wölker A, Eckert H, Panz C, Behrens P.Five-Coordinate Silicon in Zeolites: Probing SiO4/2F- Sites in Nonasil and ZSM-5 with 29Si Solid-State NMR Spectroscopy.’ Angew. Chem. Int. Ed. 36, No. 24 (): 2823-2825. doi: 10.1002/anie.199728231.
    • Koller H, Lobo RF, Burkett SL, Davis ME.SiO-⋯HOSi hydrogen bonds in as-synthesized high-silica zeolites.’ J. Phys. Chem. 99, No. 33 (): 12588-12596. doi: 10.1021/j100033a036.
    • Koller H, Burger B, Schneider AM, Engelhardt G, Weitkamp J.Location of Na + and Cs + cations in CsNaY zeolites studied by 23Na and 133Cs magic-angle spinning nuclear magnetic resonance spectroscopy combined with X-ray structure analysis by Rietveld refinement.’ Micropor. Mater. 5, No. 4 (): 219-232. doi: 10.1016/0927-6513(95)00061-5.
    • Koller H, Engelhardt G, Felsche J.Variable Temperature 1H, 23Na and 29Si MAS NMR Studies on Sodium Silicate Hydrates of Composition Na2O.SiO2.nH2O (n = 9, 6, 5): Local Structure in Crystals, Melts, Supercooled Melts, and Glasses.’ Z. anorg. allg. Chem. 621 (): 301-310. doi: 10.1002/zaac.19956210217.
    • Engelhardt G, Hunger M, Koller H, Weitkamp J.Exploring Cation Siting in Zeolites by Solid-State NMR of Quadrupolar Nuclei.’ Stud. Surf. Sci. Catal. 84, No. C (): 421-428. doi: 10.1016/S0167-2991(08)64141-5.
    • Koller H, Engelhardt G, Kentgens APM, Sauer J.23Na NMR spectroscopy of solids: Interpretation of quadrupole interaction parameters and chemical shifts.’ J. Phys. Chem. 98, No. 6 (): 1544-1551. doi: 10.1021/j100057a004.
    • Camblor MA, Lobo RF, Koller H, Davis ME.Synthesis and characterization of zincosilicates with the SOD topology.’ Chem. Mater. 6, No. 11 (): 2193-2199. doi: 10.1021/cm00047a046.
    • Engelhardt G, Koller H. 29Si NMR of Inorganic Solids In NMR - Basic Principles and Progress, edited by Diehl P, Fluck E, Günther H, Kosfeld R, Seelig J, 1-29., . doi: 10.1007/978-3-642-50049-7_1.
    • Hunger M, Engelhardt G, Koller H, Weitkamp J.Characterization of sodium cations in dehydrated faujasites and zeolite EMT by 23Na DOR, 2D nutation, and MAS NMR.’ Solid State Nucl. Magn. Reson. 2, No. 3 (): 111-120. doi: 10.1016/0926-2040(93)90029-M.
    • Wiebcke M, Grube M, Koller H, Engelhardt G, Felsche J.Structural links between zeolite-type and clathrate hydrate-type materials: Redetermination of the crystal structure of [N(CH3)4]8[Si8O20]·65H2O by single-crystal X-ray diffraction and variable-temperature MAS NMR spectroscopy.’ Micropor. Mater. 2, No. 1 (): 55-63. doi: 10.1016/0927-6513(93)80062-Y.
    • Engelhardt G, Koller H, Sieger P, Depmeier W, Samoson A.27Al and 23Na double-rotation NMR of sodalites.’ Solid State Nucl. Magn. Reso. 1, No. 3 (): 127-135. doi: 10.1016/0926-2040(92)90013-Y.
    • Wiebcke M, Koller H.Single-Crystal X-Ray Diffraction and Variable-Temperature MAS NMR Study on the Heterogeneous Network Clathrate Na[N(CH3)4]7[Si8O20].54H2O.’ Acta Crystallogr. B48 (): 449-458. doi: 10.1107/S0108768192001149.
    • Engelhardt G, Koller H.A Simple Procedure for the Determination of the Quadrupole Interaction Parameters and Isotropic Chemical Shifts from Magic Angle Spinning NMR Spectra of Half-Integer Spin Nuclei in Solids.’ Magn. Reson. Chem. 29 (): 941-945. doi: 10.1002/mrc.1260290914.
    • Koller H, Engelhardt G, Felsche J.29Si NMR studies of the transformation of silicate anions in the system Na2O·SiO2·nH2O (n = 9,5) in crystals, melts, and solution.’ J. Chem. Soc. Chem. Commun. 1990, No. 5 (): 371-372. doi: 10.1039/c39900000371.
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