List of Publications and Patents

year of publication:  1989-1994  1995-1997  1998-2000  2001-2005

Patents

1989-1994

  1. Synthesis and Structure of Fe[C5(CH2Ph)5]2 and Lu(C8H8)[C5(CH2Ph)5],
    H. Schumann, C. Janiak, R. D. Köhn, J. Loebel, A. Dietrich, J. Organomet. Chem., 365 (1989) 137-150.

  2. Cyclooctatetraenyl Pentamethylcyclopentadienyl Derivatives of the Rare Earths,
    H. Schumann, R. D. Köhn, F. Reier, A. Dietrich, J. Pickardt, Organometallics, 8 (1989) 1388-1392.

  3. Thin Yttrium and Rare Earth Oxide Films Produced by Plasma Enhanced CVD of Novel Organometallic p-Complexes,
    A. Weber, H. Suhr, H. Schumann, R. D. Köhn, Appl. Phys. A, 51 (1990) 520-525.

  4. Structure of a Scandium-(Silicon-Bridged Cp,Cp*) Complex,
    W. P. Schaefer, R. D. Köhn, J. E. Bercaw, Acta Cryst., C48 (1992) 251-253.

  5. Synthese und Strukturaufklärung neuer Cyclooctatetraenylcyclopentadienyl-Sandwich-Komplexe der seltenen Erden,
    H. Schumann, J. Winterfeld, M. Glanz, R. D. Köhn, H. Hemling, J. Organomet. Chem., 481 (1994) 275-282.

  6. 1,3,5-Triazacyclohexankomplexe von CrIII und FeIII: Erster Nachweis für h3-Komplexierung an Übergangsmetalle.
    R. D. Köhn, G. Kociok-Köhn, Angew. Chem. 106 (1994) 1958-1960, Angew. Chem., Int. Ed. Engl., 33 (1994) 1877-1879.

  7. Scandium, Yttrium, and the Lanthanides: Organometallic Chemistry.
    R. D. Köhn, G. Kociok-Köhn, H. Schumann,
    Encyclopedia of Inorganic Chemistry, R. Bruce King, University of Georgia, Athens, USA, WILEY New York, (1994), 3618-3666.

    1995-1997

  8. Olefin Polymerisation with Single Component Organoscandium and Organoyttrium Catalysts,
    B. J. Burger, W. D. Cotter, E. B. Coughlin, S. T. Chacon, S. Hajela, T. A. Herzog, R. Köhn, J. Mitchell, W. E. Piers, P. J. Shapiro, J. E. Bercaw, in Ziegler Catalysts, G. Fink, R. Mülhaupt, H. H. Brintzinger, Eds., Springer-Verlag, Berlin Heidelberg, (1995), 317-331.

  9. h3-1,3,5-Triazacyclohexane Complexes of Tribenzylchromium(III),
    R. D. Köhn, G. Kociok-Köhn, M. Haufe, J. Organomet. Chem., 501 (1995) 303-307.

  10. Syntheses and Structures of 13-Substituted 1,5,9-Triazatricyclo-[7.3.1.05,13] tridecanes and their Copper(II) Chloride Complexes,
    R. D. Köhn, G. Seifert, G. Kociok-Köhn, Chem. Ber. 129 (1996) 21-24.

  11. High Yield Synthesis of [Cr{N(SiMe3)2}3] and Accurate Structure Determination by Cocrystallization with Me6Si2,
    R. D. Köhn, G. Kociok-Köhn, M. Haufe, Chem. Ber. 129 (1996) 25-27.

  12. Cationic zinc(II) alkyl complexes of N-alkylated 1,3,5-triazacyclohexanes and 13-benzyl-1,5,9-triazatricyclo[7.3.1.05,13]-tridecane,
    M. Haufe, R. D. Köhn, R. Weimann, G. Seifert, D. Zeigan, J. Organometal. Chem. 520 (1996) 121-129.

  13. Strained 1,3,5-Triazacyclohexane Complexes of Copper(I) and (II),
    R. D. Köhn, G. Seifert, G. Kociok-Köhn, Chem. Ber., 129 (1996) 1327-1333.

  14. Lösungsmittelabhängige C-N-Bindungslängen in einem protonierten Orthoamid,
    R. D. Köhn, G. Seifert, G. Kociok-Köhn, Angew. Chem., 108 (1996) 3044-3046, Angew. Chem., Int. Ed. Engl. 35 (1996) 2879-2881.

  15. Synthesis and Characterization of the Cobalt(II) Methoxide Core {Co3(OMe)4}2+,
    R. D. Köhn, M. Haufe, G. Kociok-Köhn, A. C. Filippou, Inorg. Chem. 36 (1997) 6064-6069.

  16. Triazacyclohexane complexes with biological relevance,
    R. D. Köhn, G. Seifert, G. Kociok-Köhn, J. Inorg. Biochem. 67 (1997) 71.

    1998-2000

  17. Trends: Anorganische Chemie, Koordinationschemie,
    R. D. Köhn, Nachr. Chem. Tech. Lab. 46 (1998) 132-140.

  18. Synthesis and Structure Determination of Ethyl(-1,3,5-tribenzyl(-1,3,5-triazacyclohexane))zinc(II)-hexafluorophosphate,
    M. Haufe, R. D. Köhn, G. Kociok-Köhn, A. C. Filippou, Inorg. Chem. Commun. 1 (1998) 263-266.

  19. Synthese und Struktur des ersten Lanthanoidkomplexes mit verbrückenden, antiaromatischen 1,2´-Bipyridin-Dianionen: [{Yb(m2-N2C10H8)(thf)2}3],
    I. L. Fedushkin, T. V. Petrovskaya, F. Girgsdies, R. D. Köhn, M. N. Bochkarev, H. Schumann, Angew. Chem. 111 (1999) 2407-2409.

  20. Book Review: Topics in Organometallic Chemistry, Vol. 2, Lanthanides: Chemistry and Use in Organic Synthesis,
    R. D. Köhn, J. Organometal. Chem. 599 (2000) 317.

  21. Various Contributions in: Catalysis from A to Z,
    B. Cornils, W. A. Hermann, R. Schlögl, C.-H. Wong, Ed., Wiley-VCH, Weinheim, 2000.

  22. Triazacyclohexane complexes of chromium as highly active homogeneous model systems for the Phillips catalyst,
    R. D. Köhn, M. Haufe, S. Mihan, D. Lilge, Chem. Commun. (2000), 1927-1928.

  23. Selective Trimerization of a-Olefins with Triazacyclohexane Complexes of Chromium as Catalysts,
    R. D. Köhn, M. Haufe, G. Kociok-Köhn, S. Grimm, P. Wasserscheid, W. Keim,
    Angew. Chem., 112 (2000) 4519-4521; Angew. Chem., Int. Ed. Engl, 39 (2000) 4337-4339.

    2001-2005

  24. 1,3,5-Triazacyclohexane Complexes of Chromium as Homogeneous Model Systems for the Phillips Catalyst,
    R. D. Köhn, G. Seifert, G. Kociok-Köhn, S. Mihan, D. Lilge, H. Maas, Conference Proceedings of Organometallic Catalysts and Olefin Polymerization, Springer-Verlag, (2001) 147-155.

  25. Synthesis of Synthetic Lubricants by Trimerization of 1-Decene and 1-Dodecene with Homogeneous Chromium Catalysts,
    P. Wasserscheid, S. Grimm, R. D. Köhn, M. Haufe, Adv. Synth. Catal. 343 (2001) 814-818.

  26. New sandwich complexes of praseodynium containing triazacyclohexane lingands,
    R. D. Köhn, Z. Pan, G. Kociok-Köhn, M. F. Mahon, J. Chem. Soc., Dalton Trans. (2002) 2344-2347.

  27. Reactions of Triazacyclohexanes with CuCl2: Surprising Formation of a Dimer between Two [CuCl2]- Ions with an Unsupported Cuprophilic Attraction.
    R. D. Köhn, G. Seifert, Z. Pan, M. F. Mahon, G. Kociok-Köhn,
    Angew. Chem., 115 (2003) 818-820; Angew. Chem., Int. Ed. Engl, 42 (2003) 793-796.

  28. Trimethyltriazacyclohexane as bridging ligand for triangular Cu3 units and C-H hydride abstraction into a C6 cluster.
    R. D. Köhn, Z. Pan, M. F. Mahon, G. Kociok-Köhn, Chem. Commun. (2003) 1272-1273.

  29. Ring-Opening Polymerization of D,L-Lactide with Bis(trimethyl triazacyclohexane)Praseodymium Triflate.
    R. D. Köhn, Z. Pan, J. Sun, C. Liang, Catal. Commun. 4 (2003) 33-37.

  30. Coordination chemistry of copper-(I) and -(II) with 2-pyridylmethyl substituted triazacyclohexanes.
    R. D. Köhn, Z. Pan, M. F. Mahon, G. Kociok-Köhn, Dalton Trans., (2003) 2269-2275.

  31. 1,3,5-Triazacyclohexane Complexes of Chromium as Homogeneous Model Systems for the Phillips Catalyst.
    R. D. Köhn, D. Smith, D. Lilge, S. Mihan, F. Molnar, M. Prinz,
    ACS  Symposium Series 857 (2003) 88-100.

  32. Coordination chemistry of the activation of [( triazacyclohexane)CrCl3] with [PhNMe2H}{B(C6F5)4] and AlR3.
    R. D. Köhn, D. Smith, M. F. Mahon, M. Prinz, S. Mihan, G. Kociok-Köhn, J. Organomet Chem., 683 (2003) 200-208.

  33. Reaction of 1,3,5-Triazacyclohexanes with TiCl4: Formation of Cationic Complexes"
    R. D. Köhn, P. Kampe, G. Kociok-Köhn, Eur. J. Inorg. Chem., (2005) 3217 (with cover page!).

  34. Bis(triazacyclohexane) Sandwich Complexes of (CuI)2, CuII and ZnII: Complexes with Cuprophilic Attraction between Two Cationic Copper(I) Leading to Unusual Reactivity with Dioxygen".
    R. D. Köhn, Z. Pan, M. Haufe, G. Kociok-Köhn, Dalton Trans. (2005) 2793.

Patents