Humboldt-Universität zu Berlin - Mathematisch-Naturwissenschaftliche Fakultät - Arbeitsgruppe Ray


[2024] [2023] [2022] [2021] [2020] [2019] [2018] [2017] [2016] [2015] [2014] [2013] [2012] [2011] [2010] [2008] [2007] [2006] [2005] [2004] [2003]


  1. "Long-Term Stability of Light-Induced Ti3+ Defects in TiO2 Nanotubes for Amplified Photoelectrochemical Water Splitting"
    E. Wierzbicka, E. Szaniawska-Bialas, T. Schultz, A. O. Basilio, D. Siemiaszko, K. Ray, N. Koch, N. Pinna, M. Polanski, ChemSusChem 2024, e202301614.
    DOI: 10.1002/cssc.202301614amanda toc collab ti.jpg
  2. "Trapping of a phenoxyl radical at a non-haem high-spin iron(II) centre"
    D. Kass, V. Larson, T. Corona, U. Kuhlmann, P. Hildebrandt, T. Lohmiller, E. Bill, N. Lehnert, K. Ray, Nat. Chem. 2024.
    DOI: 10.1038/s41557-023-01405-9TOC dustin nature.webp
  3. "A high-spin alkylperoxo-iron(III) complex with cis-anionic ligands: implications for the superoxide reductase mechanism"
    T. Devi, K. Dutta, J. Deutscher, S. Mebs, U. Kuhlmann, M. Haumann, B. Cula, H. Dau, P. Hildebrandt, K. Ray, Chem. Sci. 2024, 15, 528-533.
    DOI: 10.1039/D3SC05603tarali toc chem science.gif
  4. "How Ligand Geometry Affects the Reactivity ofCo(II) Cyclam Complexes"
    L. Iffland-Mühlhaus, B. Battistella, D. Siegmund, K. Ray, U.-P. Apfel, Eur. J. Inorg. Chem. 2023, 26, e202300418.
    DOI: 10.1002/ejic.202300418bea toc collab linda.jpg
  5. "Reactivities of iron(IV)-oxido compounds with pentadentate bispidine ligands"
    K. Bleher, P. Comba, D. Kass, K. Ray, H. Wadepohl, J. Inorg. Biochem. 2023, 241, 112123.
    DOI: 10.1016/j.jinorgbio.2023.112123TOC Dustin Fe 2023.jpg
  6. "A New Thiolate-Bound Dimanganese Cluster as a Structural and Functional Model for Class Ib RNRs"
    B. Battistella, T. Lohmiller, B. Cula, P. Hildebrandt, U. Kuhlmann, H. Dau, S. Mebs, K. Ray, Angew. Chem. Int. Ed. 202362, 202217076.
    DOI: 10.1002/anie.202217076TOC Bea Mangan.png
  7. "Spectroscopic Properties of a Biologically Relevant [Fe2(µ-O)2] Diamond Core Motif with a Short Iron-Iron Distance"
    D. Kass, S. Yao, K. Krause, T. Corona, L. Richter, T. Braun, S. Mebs, M. Haumann, H. Dau, T. Lohmiller, C. Limberg, M. Drieß, K. Ray, Angew. Chem. Int. Ed. 2023, 62, e202209437.
    DOI: 10.1002/anie.202209437Dustin Fe Angew Chem.jpeg
  8. "Evidence of Sulfur Non-Innocence in [CoII(dithiacyclam)]2+-Mediated Catalytic Oxygen Reduction Reactions"
    B. Battistella, L. Iffland-Mühlhaus, M. Schütze, B. Cula, U. Kuhlmann, H. Dau, P. Hildebrandt, T. Lohmiller, S. Mebs, U.-P. Apfel, K. Ray, Angew. Chem. Int. Ed. 2022, e202214074.
    DOI: 10.1002/anie.202214074Angew Chem Int Ed - 2022 - Battistella - Evidence of Sulfur Non‐Innocence in  CoII dithiacyclam  2 ‐Mediated Catalytic.jpg
  9. "Modelling the coordination environment in α-ketoglutarate dependent oxygenases - a comparative study on the effect of N- vs. O-ligation"
    K. Warm, D. Kass, M. Haumann, H. Dau, K. Ray, Z. Anorg. Allg. Chem. 2022, 648, e202100310.
    DOI: 10.1002/zaac.202100310TOC-FeMe2tacnO.png
  10. "The influence of secondary interactions on the [Ni(O2)]+ mediated aldehyde oxidation reactions"
    B. Battistella, K. Warm, B. Cula, B. Lu, P. Hildebrandt, U. Kuhlmann, H. Dau, S. Mebs, K. Ray, J. Inorg. Biochem. 2022, 227, 111668.
    DOI: 10.1016/j.jinorgbio.2021.111668

    Bea NiO2.jpg
  11. "Formation of cobalt-oxygen intermediates by dioxygen activation at a mononuclear nonheme cobalt(II) center"
    D. D. Malik, A. Chandra, M. S. Seo, Y.-M. Lee, E. R. Farquhar, S. Mebs, H. Dau, K. Ray, W. Nam, Dalton Trans. 2021, 50, 11889-11898.
    DOI: 10.1039/D1DT01996A
    Formation of cobalt–oxygen intermediates by.jpeg
  12. "Spectroscopic Characterization of a reactive [Cu2(µ-OH)2] intermediate in Cu/TEMPO catalyzed aerobic alcohol oxidation reaction"
    K. Warm, G. Tripodi, E. Andris, S. Mebs, U. Kuhlmann, H. Dau, P. Hildebrandt, J. Roithová, K. Ray, Angew. Chem. Int. Ed. 2021, 60, 23018-23024.
    DOI: 10.1002/anie.202108442
    Spectroscopic Characterization of a reactive [Cu2(µ-OH)2] intermediate in CuTEMPO catalyzed aerobic alcohol oxidation reaction.tif
  13. "Stable, but still reactive - investigations on the effects of Lewis acid binding on copper nitrene intermediates"
    K. Warm, I. Monte-Pérez, U. Kuhlmann, P. Hildebrandt, E. Farquhar, M. Swart, K. Ray, Z. Anorg. Allg. Chem. 2021, 647, 1495-1502.
    DOI: 10.1002/zaac.202100092
    katrin zaac.jpeg
  14. "Ligand Constraint Induced Peroxide Activation for Electrophilic Reactivity"
    A. Chandra, M. Ansari, I. Monte-Pérez, S. Kundu, G. Rajaraman, K. Ray, Angew. Chem. Int. Ed. 2021, 60, 14954-14959.
    DOI: 10.1002/anie.202100438
    chanra 2021.png
  15. "Transition metal-mediated O-O bond formation and activation in chemistry and biology"
    X.-P. Zhang, A. Chandra, Y.-M. Lee, R. Cao, K. Ray, W. Nam, Chem. Soc. Rev. 2021, 50, 4804-4811.
    DOI: 10.1039/D0CS01456G
    transition metal-mediated o-o bon formation and activation in chemistry and biology.gif
  16. "A Bioinspired Oxoiron(IV) Motif Supported on a N2S2 Macrocyclic Ligand"
    J. Deutscher, P. Gerschel, K. Warm, U. Kuhlmann, S. Mebs, M. Haumann, H. Dau, P. Hildebrandt, U.-P. Apfel, K. Ray, Chem. Comm. 2021, 57, 2947-2950.
    DOI: 10.1039/D1CC00250C
    a bioinspired oxoiron motiv supported on a n2s2 macrocyclic ligand.gif
  17. "A Pseudotetrahedral Terminal Oxoiron(IV) Complex: Mechanistic Promiscuity in C-H bond Oxidation Reactions"
    K. Warm, A. Paskin, U. Kuhlmann, E. Bill, M. Swart, M. Haumann, H. Dau, P. Hildebrandt, K. Ray, Angew. Chem. Int. Ed. 2021, 60, 6752-6756.
    DOI: 10.1002/anie.202015896a pseudotetrahedral terminal oxoiron complex, mech promiscuity in ch bond oxidation reactions.jpg
  18. "Synthesis, Characterization, and Reactivity of a Series of Homo- and Hetero-dinuclear Complexes based on an Asymmetric FloH Ligand System"
    B. Battistella, F. Heims, B. Cula, K. Ray, Z. Anorg. Allg. Chem. 2020, 646, 1010-1019.
    DOI: 10.1002/zaac.202000221
  19. "Redox Potentials of High-Valent Iron-, Cobalt-, and Nickel-Oxido Complexes: Evidence for Exchange Enhanced Reactivity"
    P. Comba, A.-M. Löhr, F. Pfaff, K. Ray, Israel J. Chem. 2020, 60, 957-962.
    DOI: 10.1002/ijch.202000038
  20. "Iron and manganese oxo complexes, the oxo wall and beyond"
    V. A. Larson, B. Battistella, K. Ray, N. Lehnert, W. Nam, Nature Rev. Chem. 2020, 4, 404-419.
    DOI: 10.1038/s41570-020-0197-9
  21. "Electrochemical CO2 Reduction - The Effect of Chalcogenide Exchange in Ni-Isocyclam Complexes"
    P. Gerschel, B. Battistella, D. Siegmund, K. Ray, U. P. Apfel, Organometall. 2020, 39, 1497-1510.
    DOI: 10.1021/acs.organomet.0c00129
  22. "Catalytic dioxygen reduction mediated by a tetranuclear cobalt complex supported on a stannoxane core"
    A. Chandra, S. Mebs, S. Kundu, U. Kuhlmann, P. Hildebrandt, H. Dau, K. Ray, Dalton Trans. 2020, 49, 6065-6073.
    DOI: 10.1039/d0dt00475h
  23. "O2 and H2O2 activations at dinuclear Mn and Fe active sites"
    B. Battistella, K. Ray, Coord. Chem. Rev. 2020, 408, 213176.
    DOI: 10.1016/j.ccr.2019.213176
  24. "Stoichiometric Formation of an Oxoiron(IV) Complex by a Soluble Methane Monooxygenase Type Activation of O2 at an Iron(II)-Cyclam Center"
    D. Kass, T. Corona, K. Warm, B. Braun-Cula, U. Kuhlmann, E. Bill, S. Mebs, M. Swart, H. Dau, M. Haumann, P. Hildebrandt, K. Ray, J. Am. Chem. Soc. 2020, 142, 5924-5928.
    DOI: 10.1021/jacs.9b13756
  25. "Trapping of a Highly Reactive Oxoiron(IV) Complex in the Catalytic Epoxidation of Olefins by Hydrogen Peroxide"
    X. Engelmann, D. D. Malik, T. Corona, K. Warm, E. R. Farquhar, M. Swart, W. Nam, K. Ray, Angew. Chem. Int. Ed. 2019, 131, 4052-4056.
    DOI: 10.1002/anie.201812758
  26. "Sulfur substitution in a Ni(cyclam) derivative results in lower overpotential for CO2 reduction and enhanced proton reduction"
    P. Gerschel, K. Warm, E. R. Farquhar, U. Englert, M. L. Reback, D. Siegmund, K. Ray, U.-P. Apfel, Dalton Trans. 2019, 48, 5923-5932.
    DOI: 10.1039/c8dt04740e
  27. "Heme and Nonheme High-Valent Iron and Manganese Oxo Cores in Biological and Abiological Oxidation Reactions"
    M. Guo, T. Corona, K. Ray, W. Nam, ACS Cent. Scie. 2019, 5, 13-28.
    DOI: 10.1021/acscentsci.8b00698
  28. "Water Oxidation Reaction Mediated by an Octanuclear Iron-Oxo Cluster"
    J. Deutscher, T. Corona, K. Warm, X. Engelmann, S. Sobottka, B. Braun-Cula, B. Sarkar, K. Ray, Eur. J. Inorg. Chem. 2018, 45, 4925–4929.
    DOI: 10.1002/ejic.201800269
  29. "Structure, bonding, reactivity and spectral features of putative NiIII=O species: a theoretical perspective"
    B. Pandey, K. Ray, G. Rajaraman, Z. Anorg. Allg. Chem. 2018, 644, 790-800.
    DOI: 10.1002/zaac.201800122
  30. "Observation of Carbodicarbene Ligand Redox Noninnocence in Highly Oxidized Iron Complexes"
    S. C. Chan, P. Gupta, X. Engelmann, Z. Z. Ang, R. Ganguly, E. Bill, K. Ray, S. Ye, J. England, Angew. Chem. Int. Ed. 2018, 57, 1-7.
    DOI: 10.1002/anie.201809158
  31. "Four-electron reduction of dioxygen to water by a trinuclear copper complex"
    X. Engelmann, E. R. Farquhar, J. England, K. Ray, Inorg. Chem. Acta 2018, 481, 159-165.
    DOI: 10.1016/j.ica.2017.11.014
  32. "Nucleophilic vs. Electrophilic Reactivity of Bioinspired Superoxido Nickel(II) Complexes"
    C. Panda, A. Chandra, T. Corona, E. Andris, B. Pandey, S. Garai, N. Lindenmaier, S. Kuenstner, E. R. Farquhar, J. Roithova, G. Rajaraman, M. Driess, K. Ray, Angew. Chem. Int. Ed. 2018, 57, 14883-14887.
    DOI: 10.1002/anie.201808085
  33. "C-H activation and nucleophilic substitution in a photochemically generated high valent iron complex"
    J. Hui Lim, X. Engelmann, S. Corby, R. Ganguly, K. Ray, H. S. Soo, Chem. Sci. 2018, 9, 3992-4002.
    DOI: 10.1039/C7SC05378A
  34. "A Highly Reactive Oxoiron(IV) Complex Supported by a Bioinspired N3O Macrocyclic Ligand"
    I. Monte-Pérez, X. Engelmann, Y.-M. Lee, M. Yoo, K. Elumalai, E. R. Farquhar, E. Bill, J. England, W. Nam, M. Swart, K. Ray, Angew. Chem. Int. Ed. 2017, 56, 14384-14388.
    DOI: 10.1002/anie.201707872
  35. "Temperature Dependence of the Catalytic Two- versus Four Electron Reduction of Dioxygen by a Hexanuclear Cobalt Complex"
    I. Monte-Pérez, S. Kundu, A. Chandra, K. E. Craigo, P. Chernev, U. Kuhlmann, H. Dau, P. Hildebrandt, C. Greco, C. Van Stappen, N. Lehnert, K. Ray, J. Am. Chem. Soc. 2017, 139, 15033-15042.
    DOI: 10.1021/jacs.7b07127
  36. "A High-Valent Non-Heme μ-Oxo Manganese(IV) Dimer Generated from a Thiolate-Bound Manganese(II) Complex and Dioxygen"
    D. Brazzolotto, F. G. Cantú Reinhard, J. Smith-Jones, M. Retegan, L. Amidani, A. S. Faponle, K. Ray, C. Philouze, S. P. de Visser, M. Gennari, C. Duboc, Angew. Chem. Int. Ed. 2017, 56, 8211-8215.
    DOI: 10.1002/ange.201703215
  37. "Synthesis and reactivity of a mononuclear non-haem cobalt(IV)-oxo complex"
    B. Wang, Y.-M. Lee, W.-Y. Tcho, S. Tussupbayev, S.-T. Kim, Y. Kim, M. S. Seo, K.-B. Cho, Y. Dede, B. C. Keegan, T. Ogura, S. H. Kim, T. Ohta, M.-H. Baik, K. Ray, J. Shearer, W. Nam, Nat. Commun. 2017, 8, 14839.
    DOI: 10.1038/ncomms14839
  38. "A New Domain of Reactivity for High-Valent Dinuclear [M(µ-O2M'] Complexes in Oxidation Reactions"
    X. Engelmann, S. Yao, E. R. Farquhar, T. Szilvási, U. Kuhlmann, P. Hildebrandt, M. Driess, K. Ray, Angew. Chem. 2017, 56, 303-307.
    DOI: 10.1002/anie.201607611
  39. "Characterization and reactivity studies of a terminal copper-nitrene species"
    T. Corona, L. Ribas, M. Rovira, E. R. Farquhar, X. Ribas, K. Ray, A. Company, Angew. Chem. Int. Ed. 2016, 55, 14005-14008.
    DOI: 10.1002/anie.201607238
  40. "A cobalt(II) iminoiodane complex and its scandium adduct: mechanistic promiscuity in hydrogen atom abstraction reactions"
    S. Kundu, P. Chernev, X. Engelmann, C. S. Chung, H. Dau, E. Bill, J. England, W. Nam, K. Ray, Dalton Trans. 2016, 45, 14538-14543.
    DOI: 10.1039/C6DT01815G
  41. "Changing the chemical and physical properties of high valent heterobimetallic bis-(μ-oxido) Cu-Ni complexes by ligand effects"
    M.-C. Kafentzi, M. Orio, M. Reglier, S. Yao, U. Kuhlmann, P. Hildebrandt, M. Driess, A. J. Simaan, K. Ray, Dalton Trans. 2016, 45, 15994-16000.
    DOI: 10.1039/C6DT02391F
  42. "Dioxygen activation chemistry by synthetic mononuclear nonheme iron, copper and chromium complexes"
    S. Hong, Y.-M. Lee, K. Ray, W. Nam, Coord. Chem. Rev. 2016, 334, 25-42.
    DOI: 10.1016/j.ccr.2016.07.006
  43. "An iron(II) hydride complex of a ligand with two adjacent β-diketiminate binding sites and its reactivity"
    H. Gehring, R. Metzinger, B. Braun, C. Herwig, S. Harder, K. Ray, C. Limberg, Dalton Trans. 2016, 45, 2989-2996.
    DOI: 10.1039/C5DT04266F
  44. "Oxidation Reactions with Bioinspired Mononuclear Non-Heme Metal-Oxo Complexes"X. Engelmann, I. Monte-Pérez, K. Ray, Angew. Chem. Int. Ed. 2016, 55, 7632-7649.
    DOI: 10.1002/anie.201600507
  45. "High-Valent Metal-Oxo Intermediates in Energy Demanding Processes: From Dioxygen Reduction to Water Splitting"
    F. Heims, K. Ray, M. Schwalbe, W. Nam, Curr. Opin. Chem. Biol. 2015, 25, 159-171.
    DOI: 10.1016/j.cbpa.2015.01.014
  46. "An Open-Shell Spin Singlet Copper-Nitrene Intermediate Binding Redox-innocent Metal Ions: Influence of the Lewis Acidity of the Metal Ions on Spectroscopic and Reactivity Properties"
    I. M.-Pérez, S. Kundu, K. Ray, Z. Anorg. Allg. Chem. 2015, 641, 78–82.
    DOI: 10.1002/zaac.201400389
  47. "Characterization of Porphyrin-Co(III)-‘Nitrene radical’ species relevant in catalytic nitrene transfer reactions"
    M. Goswami, V. Lyaskovskyy, S. R. Domingos, W. J. Buma, S. Woutersen, O. Troeppner, I. I-Burmazović, H. Lu, X. Cui, P. Zhang, E. J. Reijerse, S. DeBeer, M. M. van Schooneveld, F. Pfaff, K. Ray, B. de Bruin, J. Am. Chem. Soc. 2015, 137, 5468–5479.
    DOI: 10.1021/jacs.5b01197
  48. "Reactivity of a Nickel(II) Bis(amidate) Complex with meta-Chloroperbenzoic Acid: Formation of a Potent Oxidizing Species"
    T. Corona, F. F. Pfaff, F. Acuña-Parés, A. Draksharapu, C. J. Whiteoak, V. Martin-Diaconescu, J. L-Fillol, W. R. Browne, K. Ray, A. Company, Chem. Eur. J. 2015, 21, 15029-15038.
    DOI: 10.1002/chem.201501841
  49. "[Ni(cod)2][Al(ORF)4], a Source for Naked Nickel(I) Chemistry"
    M. Schwab, D. Himmel, S. Kacprzak, D. Kratzert, V. Radtke, M. Wernet, P. Weis, K. Ray, E. W. Scheidt, W. Scherer, B. de Bruin, T. Augenstein, F. Breher, S. Weber, I. Krossing, Angew. Chem. Int. Ed. 2015, 54, 14706-14709.
    DOI: 10.1002/anie.201506475
  50. "Spectroscopic Capture and Reactivity of a Low-Spin Cobalt(IV)-Oxo Complex Stabilized by Binding Redox-Inactive Metal Ions"
    S. Hong, F. F. Pfaff, E. Kwon, Y. Wang, M.-S. Seo, E. Bill, K. Ray, W. Nam, Angew. Chem. Int. Ed. 2014, 53, 10403-1407.
    DOI: 10.1002/ange.201701623
  51. "Evidence of Two-State Reactivity in Alkane Hydroxylation by Lewis-acid Bound Copper-Nitrene Complexes"
    S.-L. Abram, I. Monte-Pérez, F. F. Pfaff, E. Farquhar, K. Ray, Chem. Commun. 2014, 50, 9852-9854.
    DOI: 10.1039/C4CC03754E
  52. "Status of Reactive Non-Heme Metal-Oxygen Intermediates in Chemical and Enzymatic Reactions"
    K. Ray, F. F. Pfaff, B. Wang, W. Nam, J. Am. Chem. Soc. 2014, 136, 13942-13958.
    DOI: 10.1021/ja507807v
  53. "Redox Non-Innocence of a N-Heterocyclic Nitrenium Cation Bound to a Nickel–Cyclam Core"
    F. Heims, F. F. Pfaff, S.-L. Abram, E. R. Farquhar, M. Bruschi, C. Greco, K. Ray, J. Am. Chem. Soc. 2014, 136, 582-585.
    DOI: 10.1021/ja4099559
  54. "Mechanism of phenol oxidation by heterodinuclear Ni Cu bis(µ-oxo) complexes involving nucleophilic oxo groups"
    S. Kundu, E. Miceli, E. R. Farquharb, K. Ray, Dalton Trans. 2014, 43, 4264-4267.
    DOI: 10.1039/C3DT52644E
  55. "Access to a CuII–O–CuII Motif: Spectroscopic Properties, Solution Structure, and Reactivity"
    P. Haack, A. Kärgel, C. Greco, J. Dokic, B. Braun, F. F. Pfaff, S. Mebs, K. Ray, C. Limberg, J. Am. Chem. Soc. 2013, 135, 16148-16160.
    DOI: 10.1021/ja406721a
  56. "A High-Valent Heterobimetallic [CuIII(μ-O)2NiIII]2+ Core with Nucleophilic Oxo Groups"
    S. Kundu, F. F. Pfaff, E. Miceli, I. Zaharieva, C. Herwig, S. Yao, E. R. Farquhar, U. Kuhlmann, E. Bill, P. Hildebrandt, M. Driess, C. Limberg, K. Ray, Angew. Chem. Int. Ed. 2013, 52, 5622-5626.
    DOI: 10.1002/anie.201300861
  57. "Terminal oxo and imido transition metal complexes of Groups 9-11"
    K. Ray, F. Heims, F. F. Pfaff, Eur. J. Inorg. Chem. 2013, 2013, 3784-3807.
    DOI: 10.1002/ejic.201300223
  58. "Nonheme oxoiron(IV) complexes of pentadentate N5 ligands: spectroscopy, electrochemistry, and oxidative reactivity"
    D. Wang, K. Ray, M. J. Collins, E. R. Farquhar, J. R. Frisch, L. Gomez, T. A. Jackson, M. Kerscher, A. Waleska, P. Comba, M. Costas, L. Que Jr., Chem. Sci. 2013, 4, 282-291.
    DOI: 10.1039/C2SC21318D
  59. "Lewis-acid Trapping of an Elusive Copper-Tosylnitrene Intermediate Using Scandium Triflate"
    S. Kundu, E. Miceli, E. Farquhar, F. F. Pfaff, U. Kuhlmann, P. Hildebrandt, B. Braun, C. Greco, K. Ray, J. Am. Chem. Soc. 2012, 134, 14710-14713.
    DOI: 10.1021/ja306674h
  60. "Metal-oxo-mediated O-O bond formation reactions in chemistry and biology"
    S. Kundu, M. Schwalbe, K. Ray, BioInorg. React. Mech. 2012, 8, 41-57.
    DOI: 10.1515/irm-2012-0004
  61. "Synthesis and Spectroscopic Characterisation of a Heterodinuclear Iron(III)-Copper(II) Complex Based on an Asymmetric Dinucleating Ligand System"
    F. Heims, V. Mereacre, A. Ciancetta, S. Mebs, A. K. Powell, C. Greco, K. Ray, Eur. J. Inorg. Chem. 2012, 29, 4565-4569.
    DOI: 10.1002/ejic.201200156
  62. "The biology and chemistry of high-valent iron–oxo and iron–nitrido complexes"
    J. Hohenberger, K. Ray, K. Meyer, Nature Commun. 2012, 3, 720.
    DOI: 10.1038/ncomms1718
  63. "Spectroscopic capture and reactivity of S = 1/2 nickel(III)–oxygen intermediates in the reaction of a NiII-salt with mCPBA"
    F. F. Pfaff , F. Heims , S. Kundu , S. Mebs, K. Ray, Chem. Commun. 2012, 48, 3730-3732.
    DOI: 10.1039/C2CC30716B
  64. "O-O Bond Formation Mediated by a Hexanuclear Iron Complex Supported on a Stannoxane Core"
    S. Kundu, E. Matito, S. Walleck, F. F. Pfaff, F. Heims, B. Rábay, J. M. Luis, A. Company, B. Braun, T. Glaser, K. Ray, Chem. Eur. J. 2012, 10, 2787-2791.
    DOI: 10.1002/chem.201102326
  65. "An Oxocobalt(IV) Complex Stabilized by Lewis Acid Interactions with Scandium(III) Ions"
    F. F. Pfaff, S. Kundu, M. Risch, S. Pandian, F. Heims, I. Pryjomska-Ray, P. Haack, R. Metzinger, E. Bill, H. Dau, P. Comba, K. Ray, Angew. Chem. Int. Ed. 2011, 7, 1711-1715.
    DOI: 10.1002/anie.201005869
  66. "Dinuclear Copper Complexes Based on Parallel ß-Diiminato Binding Sites and their Reactions with O2: Evidence for a Cu-O-Cu Entity"
    P. Haack, C. Limberg, K. Ray, B. Braun, U. Kuhlmann, P. Hildebrandt, C. Herwig, Inorg. Chem. 2011, 6, 2133-2142.
    DOI: 10.1021/ic101249k
  67. "Dioxygenase-Like Reactivity of an Isolable Superoxo-Nickel(II) Complex"
    A. Company, S. Yao, K. Ray, M. Driess, Chem. Eur. J. 2010, 16, 9669-9675.
    DOI: 10.1002/chem.201001138
  68. "Determination by High-Frequency and -Field EPR of Zero-Field Splitting in Iron(IV) Oxo Complexes: Implications for Intermediates in Nonheme Iron Enzymes"
    J. Krzystek, J. England, K. Ray, A. Ozarowski, D. Smirnov, L. Que Jr., J. Telser, Inorg. Chem. 2008, 47, 3483-3485.
    DOI: 10.1021/ic800411c
  69. "An Inverted and More Oxidizing Isomer of [FeIV(O)(TMC)(NCCH3)]2+"
    K. Ray, J. England, M. Martinho, E. Munck, L. Que Jr., Angew. Chem. 2008, 120, 8188-8191.
    DOI: 10.1002/ange.200802219
  70. "Iron-Oxidation-State Dependent O-O bond cleavage in meta-chloroperbenzoic acid to form an oxoiron(IV) complex"
    K. Ray, S. M. Lee, L. Que Jr., Inorg. Chim. Acta 2008, 361, 1066-1069.
    DOI: 10.1016/j.ica.2007.07.039
  71. "Description of the Ground-State Covalencies of the Bis(dithiolato) Transition-Metal Complexes from X-ray Absorption Spectroscopy and Time-Dependent Density-Functional Calculations"
    K. Ray, S. D. George, E. I. Solomon, K. Wieghardt, F. Neese, Chem. Eur. J. 2007, 13, 2783-2797.
    DOI: 10.1002/chem.200601425
  72. "Molecular and Electronic Structure of Square-Planar Gold Complexes Containing Two 1,2-Di(4-tert-butylphenyl)ethylene-1,2-dithiolato Ligands: [Au(2L)2]1+/0/1-/2-. A Combined Experimental and Computational Study"
    S. Kokatam, K. Ray, J. Pap, E. Bill, W. E. Geiger, R. J. LeSuer, P. H. Rieger, T. Weyhermüller, F. Neese, K. Wieghardt, Inorg. Chem. 2007, 46, 1100-1111.
    DOI: 10.1021/ic061181u
  73. "Axial Ligand Tuning of a Nonheme Iron(IV)-Oxo Unit for Hydrogen Atom Abstraction"
    C. V. Sastri, J. Lee, K. Oh, Y. J. Lee, J. Lee, T. A. Jackson, K. Ray, H. Hirao, W. Shin, J. A. Halfen, L. Que Jr., S. Shaik, W. Nam, Proc. Natl. Acad. Sc. 2007, 104, 19181-19186.
    DOI: 10.1073/pnas.0709471104
  74. "Joint Spectroscopic and Theoretical Investigations of Transition Metal Complexes Involving Non-innocent ligands"
    K. Ray, T. Petrenko, K. Wieghardt, F. Neese, Dalton Trans. 2007, 16, 1552-1566.
    DOI: 10.1039/B700096K
  75. "Electrochemical Generation of a Nonheme Oxoiron(IV) Complex"
    M. J. Collins, K. Ray, L. Que Jr., Inorg. Chem. 2006, 45, 8009-8011.
    DOI: 10.1021/ic061263i
  76. "Vibrational Markers for the Open-Shell Character of Transition Metal Bis-dithiolenes: An Infrared, Resonance Raman, and Quantum Chemical Study"
    T. Petrenko, K. Ray, K. Wieghardt, F. Neese, J. Am. Chem. Soc. 2006, 128, 4422-4436.
    DOI: 10.1021/ja0578451
  77. "Molecular and Electronic Structures of Oxo-bis(benzene-1,2-dithiolato)chromate(V) Monoanions. A Combined Experimental and Density Functional Study"
    R. Kapre, K. Ray, I. Sylvestre, T. Weyhermüller, S. D. George, F. Neese, K. Wieghardt, Inorg. Chem. 2006, 45, 3499-3509.
    DOI: 10.1021/ic051844s
  78. "A Lipophilic Hexaporphyrin Assembly Supported on a Stannoxane Core"
    V. Chandrasekhar, S. Nagendran, R. Azhakar, M. R. Kumar, A. Srinivasan, K. Ray, T. K. Chandrashekar, C. Madhavaiah, S. Verma, U. D. Priyakumar, G. N. Sastry, J. Am. Chem. Soc. 2005, 127, 2410-2411.
    DOI: 10.1021/ja043748g
  79. "Electronic Structure of Square Planar Bis(benzene-1,2-dithiolato)metal Complexes [M(L)2]z (z = 2-, 1-, 0; M = Ni, Pd, Pt, Cu, Au): An Experimental, Density Functional, and Correlated ab initio Study"
    K. Ray, T. Weyhermüller, F. Neese, K. Wieghardt, Inorg. Chem. 2005, 44, 5345-5360.
    DOI: 10.1021/ic0507565
  80. "Redox-Noninnocence of the S,S'-Coordinated Ligands in Bis(benzene-1,2-dithiolato)iron Complexes"
    K. Ray, E. Bill, T. Weyhermüller, K. Wieghardt, J. Am. Chem. Soc. 2005, 127, 5641-5654.
    DOI: 10.1021/ja040237l
  81. "The Electronic Structure of the Isoelectronic, Square Planar Complexes, [FeII(L)2]2- and [CoIII(LBu)2]- (L2- and (LBu)2- = benzene-1,2-dithiolates): An Experimental and Density Functional Theoretical Study"
    K. Ray, A. Begum, T. Weyhermüller, S. Piligkos, J. van Slageren, F. Neese, K. Wieghardt, J. Am. Chem. Soc. 2005, 127, 4403-4415.
    DOI: 10.1021/ja042803i
  82. "Molecular and Electronic Structure of Four- and Five- Coordinate Cobalt Complexes Containing Two o-Phenylenediamine- or two o-Aminophenol-Type Ligands at Various Oxidation Levels: An Experimental, Density Functional, and Correlated ab initio Study"
    E. Bill, E. Bothe, P. Chaudhuri, K. Chlopek, D. Herebian, S. Kokatam, K. Ray, T. Weyhermüller, F. Neese, K. Wieghardt, Chem. Eur. J. 2004, 11, 204-224.
    DOI: 10.1002/chem.200400850
  83. "Do S,S'–Coordinated o-dithiobenzosemiquinonate(1-) Radicals Exist in Coordination Compounds? The [AuIII(1,2-C6H4S2)2]1-/0 Couple"
    K. Ray, T. Weyhermüller, A. Goossens, M. W. J. Crajé, K. Wieghardt, Inorg. Chem. 2003, 42, 4082-4087.
    DOI: 10.1021/ic0207092