| BNL Chemistry Department |
| Photo- and Radiation Chemistry | Group Members | LEAF/Center for Radiation Chemistry Research |
| Brunschwig | Bullock | Cabelli | Cook | Creutz | Fujita | Holroyd | Lymar | Miller | Newton | Sutin | Wishart |

R. Morris Bullock

Publications

  1. "A Recyclable Catalyst That Precipitates at the End of the Reaction," Dioumaev, V. K.; Bullock, R. M., Nature, 2003, 424, 530-532. (Click here to download a pdf file of this paper) [Link to the article on Nature's web site] [Link to a summary in ScienceNOW] [Link to a summary in Chemical and Engineering News]

  2. "An N-Heterocyclic Carbene as a Bidentate Hemilabile Ligand in W and Mo Hydrogenation Catalysts: A Synchrotron X-ray Diffraction and Density Functional Theory Study," Dioumaev, V. K.; Szalda, D. J.; Hanson, J.; Franz, J. A.; Bullock, R. M., Chem. Commun., 2003, 1670-1671. [Link to paper]

  3. "Hydride Transfer from (h5-C5Me5)(CO)2MH (M = Fe, Ru, Os) To Trityl Cation: Different Products from Different Metals, and the Kinetics of Hydride Transfer," Cheng, T.-Y.; Bullock, R. M., Organometallics, 2002, 21, 2325-2331. [Link to paper]

  4. "Protonation of (PCP)PtH To Give a Dihydrogen Complex," Kimmich, B. F. M.; Bullock, R. M., Organometallics, 2002, 21, 1504-1507. [Link to paper]

  5. "Isotope Methods in Homogeneous Catalysis," Bullock, R. M.; Bender, B. R. In the Encyclopedia of Catalysis , István Horváth, Ed.; Wiley and Sons, Publishers, New York, 2002. [Link to chapter]

  6. "Palladium Complexes With PCP Ligands. Preparation and Structural Studies of Two Forms of [(PCP)Pd(OH2)]+ BF4-," Kimmich, B. F. M.; Marshall, W. J.; Fagan, P. J.; Hauptman, E.; Bullock, R. M., Inorg. Chim. Acta, 2002, 330, 52-58. (Invited paper for special issue in memory of Luigi Venanzi).

  7. "Catalytic Ionic Hydrogenations of Ketones using Molybdenum and Tungsten Complexes," Voges, M. H.; Bullock, R. M., J. Chem. Soc., Dalton Trans. 2002, 759-770. (Invited paper for special issue; Dalton Discussion 4 meeting held in Germany in January 2002). [Link to paper]

  8. "Metal-Catalyzed Selective Deoxygenation of Diols," Schlaf, M.; Ghosh, P.; Fagan, P. J.; Hauptman, E.; Bullock, R. M., Angew. Chem., Int. Ed. Engl., 2001, 40, 3887-3890.

  9. "Pulse Radiolysis Studies of Water-Soluble Tungsten Hydride Complexes: One-Electron Reduction of Metal Hydrides and Hydrogen Atom Transfer Reactions," Cabelli, D. C.; Shafiq, F.; Creutz, C.; Bullock, R. M., Organometallics, 2001, 20, 3729-3737. [Link to paper]

  10. "Alcohol Complexes of Tungsten Prepared by Ionic Hydrogenations of Ketones," Song, J. S.; Szalda, D. J.; Bullock, R. M., Organometallics 2001, 20, 3337-3346. [Link to paper]

  11. "Homogeneous Catalysis with Inexpensive Metals: Ionic Hydrogenation of Ketones with Molybdenum and Tungsten Catalysts," Bullock, R. M.; Voges, M. H., J. Am. Chem. Soc. 2000, 122, 12594-12595. [Link to paper]

  12. "Water-Soluble Tungsten Hydrides: Synthesis, Structures and Reactions of (C5H4CO2H)(CO)3WH and Related Complexes", Shafiq, F.; Szalda, D. J.; Creutz, C.; Bullock, R. M., Organometallics, 2000, 19, 824-833. [Link to paper]

  13. "An Uncommon Bonding Mode of a Familiar Ligand: A Molybdenum Complex with a Four-Electron Donor Chelating h3-PPh3 Ligand, and Its Structural Determination using Synchrotron Radiation," Cheng, T.-Y.; Szalda, D. J.; Bullock, R. M., J. Chem. Soc., Chem. Commun., 1999, 1629-1630. [Link to paper]

  14. "Isotope Effects on Hydride Transfer Reactions from Transition Metal Hydrides to Trityl Cation. An Inverse Isotope Effect for a Hydride Transfer," Cheng, T.-Y.; Bullock, R. M., J. Am. Chem. Soc. 1999, 121, 3150-3155. [Link to paper]

  15. "Hydride Transfer Reactions of Transition Metal Hydrides: Kinetic Hydricity of Metal Carbonyl Hydrides." Cheng, T.-Y.; Brunschwig, B. S.; Bullock, R. M., J. Am. Chem. Soc. 1998, 120, 13121-13137. [Link to paper]

  16. "Experimental Charge Density and Neutron Structural Study of cis-HMn(CO)4PPh3; Comprehensive Analysis of Chemical Bonding and Evidence for a C—H • • • H—Mn Hydrogen Bond," Abramov, Y. A.; Brammer, L.; Klooster, W. T.; Bullock, R. M., Inorg. Chem. 1998, 37, 6317-6328. [Link to paper]

  17. "6-(Alkylamino)-9-alkylpurines. A New Class of Potential Antipsychotic Agents", Kelley, J. L.; Bullock, R. M.; Krochmal, M. P.; McLean, E. W.; Linn, J. A. Durcan, M. J.; Cooper, B. R., J. Med. Chem. 1997, 40, 3207-3216. [Link to paper]

  18. "Hydride Transfer Reactions of Transition Metal Hydrides in the Preparation of [Cp(CO)3W(h1-aldehyde)]+OTf- and [Cp(CO)3W(h1-ketone)]+OTf- Complexes", Song, J. S.; Szalda, D. J.; Bullock, R. M., Inorg. Chim. Acta 1997, 259, 161-172 (Invited paper for special issue on metal hydrides).

  19. "Ether Complexes of Tungsten with Two Different Binding Modes: An O-Bound Ether and an h2-(C=C) Vinyl Ether. Evidence for C—H • • • O Hydrogen Bonding of Vinylic C—H Groups." Song, J. S.; Szalda, D. J.; Bullock, R. M., J. Am. Chem. Soc. 1996, 118, 11134-11141. [Link to paper]

  20. "Protonation of Metal Hydrides by Strong Acids. Formation of an Equilibrium Mixture of Dihydride and Dihydrogen Complexes from Protonation of Cp*Os(CO)2H. Structural Characterization of [CpW(CO)2(PMe3)(H)2]+OTf-", Bullock, R. M.; Song, J. S.; Szalda, D. J.; Organometallics, 1996, 15, 2504-2516. [Link to paper]

  21. "Kinetic Hydricity of Transition Metal Hydrides Toward Trityl Cation", Cheng, T.-Y.; Bullock, R. M., Organometallics 1995, 14, 4031-4033.

  22. "Photoinduced Atom-Transfer Reactions Between Transition-Metal Centers", Creutz, C.; Song, J.-S.; Bullock, R. M., Pure & Appl. Chem. 1995, 67, 47-54.

  23. "Ionic Hydrogenation of Alkynes by HOTf and Cp(CO)3WH", Luan, L.; Song, J.-S.; Bullock, R. M., J. Org. Chem. 1995, 60, 7170-7176.

  24. "Ionic Hydrogenations of Hindered Olefins at Low Temperature. Hydride Transfer Reactions of Transition Metal Hydrides", Bullock, R. M.; Song, J.-S., J. Am. Chem. Soc. 1994, 116, 8602-8612.

  25. "Metal-Acetylide Bonding in (h5-C5H5)Fe(CO)2CºCR Compounds. Measures of Metal dp/Acetylide p Interactions from Photoelectron Spectroscopy", Lichtenberger, D. L.; Renshaw, S. K.; Bullock, R. M., J. Am. Chem. Soc. 1993, 115, 3276-3285.

  26. "X-Ray and Neutron Diffraction Studies of [MoH(h-C5Me5)(CO)3] at 163 K", Brammer, L.; Zhao, D.; Bullock, R. M.; McMullan, R. K., Inorg. Chem. 1993, 32, 4819-4824.

  27. "Formation of a Manganese Alkyl Complex as an Intermediate in the Ring-Opening Hydroformylation of a-Cyclopropylstyrene by HMn(CO)5", Bullock, R. M.; Rappoli, B. J., J. Organomet. Chem. 1992, 429, 345-368.

  28. "Isotope Effects in Reactions of Transition Metal Hydrides"
    Bullock, R. M. In Transition Metal Hydrides: A. Dedieu, Ed.; VCH Publishers, New York, 1992, Chapter 8.

  29. "Et3NH+Co(CO)4-: Hydrogen-Bonded Adduct or Simple Ion Pair? Single-Crystal Neutron Diffraction Study at 15 K", Brammer, L.; McCann, M. C.; Bullock, R. M.; McMullan, R. K.; Sherwood, P., Organometallics 1992, 11, 2339-2341.

  30. "Low-Temperature Neutron Diffraction Study of HMn2Re(CO)14 and Studies of a Metal-Metal Exchange Equilibrium That Converts HMn2Re(CO)14 into HMnRe2(CO)14", Bullock, R. M.; Brammer, L.; Schultz, A. J.; Albinati, A.; Koetzle, T. F., J. Am. Chem. Soc. 1992, 114, 5125-5130.

  31. "Insertion of Isocyanides into the Zr-C Bond of Ruthenium/Zirconium Dimetalloalkenes. Spectroscopic and Structural Comparisons of the h2-Iminoacyl Complexes Cp(PMe3)2RuCH=CRC(NtBu)ZrClCp2 (R = H vs. R = Me) and Kinetics of Isomerization of a Thermodynamically Unstable h2-Iminoacyl Complex", Lemke, F. R.; Szalda, D. J.; Bullock, R. M., Organometallics 1992, 11, 876-884.

  32. "Hydride Transfer Reactions of Transition-Metal Hydride Complexes. Ionic Hydrogenation of Aldehydes and Ketones, and Structural Characterization of an Alcohol Complex", Song, J.-S.; Szalda, D. J.; Bullock, R. M.; Lawrie, C. J. C.; Rodkin, M. A.; Norton, J. R., Angew. Chem., Int. Ed. Engl. 1992, 31, 1233-1235.

  33. "Insertion and b-Hydride Elimination Reactions of Ruthenium/Zirconium Complexes Containing C2 Bridges with Bond Orders of 1, 2, and 3", Lemke, F. R.; Bullock, R. M., Organometallics 1992, 11, 4261-4267.

  34. "Metal-Hydrogen Bond Cleavage Reactions of Transition Metal Hydrides: Hydrogen Atom, Hydride, and Proton Transfer Reactions", Bullock, R. M., Comments Inorg. Chem. 1991, 12, 1-33.

  35. "Preparation and Reactions of Mn2(CO)9(h1-aldehyde) Complexes", Bullock, R. M.; Rappoli, B. J., J. Am. Chem. Soc. 1991, 113, 1659-1669.

  36. "X-Ray Diffraction Study of Pentacarbonyl(m-hydrido)(nonacarbonyldimanganese)rhenium, HMn2Re(CO)14", Albinati, A.; Bullock, R. M.; Rappoli, B. J.; Koetzle, T. F., Inorg. Chem. 1991, 30, 1414-1417.

  37. "Intrinsic Barriers to Atom Transfer (Abstraction) Processes; Self-Exchange Rates for Cp(CO)3M• Radical/Cp(CO)3M-X Halogen Couples", Song, J.-S.; Bullock, R. M.; Creutz, C., J. Am. Chem. Soc. 1991, 113, 9862-9864.

  38. "Ruthenium/Zirconium Complexes Containing C2 Bridges with Bond Orders of Three, Two, and One. Synthesis and Structures of Cp(PMe3)2RuCHnCHnZrClCp2 (n = 0,1,2)", Lemke, F. R.; Szalda, D. J.; Bullock, R. M., J. Am. Chem. Soc. 1991, 113, 8466-8477.

  39. "Intrinsic Barriers to Atom Transfer: Self-Exchange Reactions of CpM(CO)3X/CpM(CO)3- Halide Couples", Schwarz, C. L.; Bullock, R. M.; Creutz, C., J. Am. Chem. Soc. 1991, 113, 1225-1236.

  40. "Complexes Containing a C2 Bridge Between an Electron-Rich Metal and an Electron-Deficient Metal. An Agostic Interaction in a RuCH2CH2Zr Moiety", Bullock, R. M.; Lemke, F. R.; Szalda, D. J., J. Am. Chem. Soc. 1990, 112, 3244-3245.

  41. "Hydrogen Atom Transfer Reactions of Transition-Metal Hydrides. Kinetics and Mechanism of the Hydrogenation of a-Cyclopropylstyrene by Metal Carbonyl Hydrides", Bullock, R. M.; Samsel, E. G., J. Am. Chem. Soc. 1990, 112, 6886-6898.

  42. "Ionic Hydrogenations Using Transition Metal Hydrides. Rapid Hydrogenation of Hindered Alkenes at Low Temperatures", Bullock, R. M.; Rappoli, B. J., J. Chem. Soc., Chem. Commun. 1989, 1447-1448.

  43. "Intramolecular Hydrogen Exchange among the Coordinated Methane Fragments of Cp2W(H)CH3. Evidence for the Formation of a s Complex of Methane Prior to Elimination", Bullock, R. M.; Headford, C. E. L.; Hennessy, K. M.; Kegley, S. E.; Norton, J. R., J. Am. Chem. Soc. 1989, 111, 3897-3908.

  44. "Hydroformylation of the CºC Bond of (C5H5)(PMe3)2Ru-CºC-CH3 by HRe(CO)5 to Give an h1-Aldehyde Complex of Rhenium", Bullock, R. M.; Ricci, J. S.; Szalda, D. J., J. Am. Chem. Soc. 1989, 111, 2741-2743.

  45. "[Os2(CO)8(m2-h2-C2H4)] as a Vibrational Model for 1,2-di-s Chemisorbed Ethylene on Metal Surfaces", Anson, C. E.; Johnson, B. F. G.; Lewis, J.; Powell, D. B.; Sheppard, N.; Bhattacharyya, A. K.; Bender, B. R.; Bullock, R. M.; Hembre, R. T.; Norton, J. R., J. Chem. Soc., Chem. Commun. 1989, 703-705.

  46. "Cyclopropylbenzyl Radical Clocks", Masnovi, J.; Samsel, E. G.; Bullock, R. M., J. Chem. Soc., Chem. Commun. 1989, 1044-1045.

  47. "Ring-Opening Hydroformylation of a-Cyclopropylstyrene by HMn(CO)5, and Structure of a Novel Mn2(CO)9(h1-Aldehyde) Complex", Bullock, R. M.; Rappoli, B. J.; Samsel, E. G.; Rheingold, A. L., J. Chem. Soc., Chem. Commun. 1989, 261-263.

  48. "Rearrangement of a Metal (h1-Alkyne) Complex to a Metal Vinylidene and Subsequent Reaction of the Metal Vinylidene to Regenerate the Alkyne", Bullock, R. M., J. Chem. Soc., Chem. Commun. 1989, 165-167.

  49. "Synthesis of Os2(CO)8(m-CHCH3) from a Geminal Ditriflate and Its Reversible Carbonylation to a Ketene-Bridged Diosmacycle", Bullock, R. M.; Hembre, R. T.; Norton, J. R., J. Am. Chem. Soc. 1988, 110, 7868-7870.

  50. "Hydrogen Atom Transfer Reactions of Transition Metal Hydrides. Utilization of a Radical Rearrangement in the Determination of Hydrogen Atom Transfer Rates", Bullock, R. M.; Samsel, E. G., J. Am. Chem. Soc. 1987, 109, 6542-6544.

  51. "Heterobimetallic Compounds Linked by Heterodifunctional Ligands", Bullock, R. M.; Casey, C. P., Accts. Chem. Res. 1987, 20, 167-173.

  52. "Proton Transfer from Metal Hydrides to Metal Alkynyl Complexes. Remarkable Carbon Basicity of (C5H5)(PMe3)2Ru-CºC-CMe3", Bullock, R. M., J. Am. Chem. Soc. 1987, 109, 8087-8089.

  53. "Hydrogen Exchange Between the Methyl and Hydride Ligands of Cp2W(H)CH3 Prior to Methane Elimination", Bullock, R. M.; Headford, C. E. L.; Kegley, S. E.; Norton, J. R., J. Am. Chem. Soc. 1985, 107, 727-729.

  54. "Photochemical Hydrogenolysis of the Phosphorus-Cyclopentadienyl Bond of (CO)4MnMo(CO)3[h5-C5H4P(C6H4-p-CH3)2] and Formation of the Phosphido-Bridged Metal Hydride Complex (CO)4Mn[m-P(C6H4-p-CH3)2](m-H)Mo(CO)2(C5H5)", Casey, C. P.; Bullock, R. M., Organometallics 1984, 3, 1100-1103.

  55. "Synthesis of Molybdenum-Rhodium and Molybdenum-Iridium Compounds Linked by a Heterodifunctional Ligand and Formation of Molybdenum-Iridium Dihydrides by Reaction with Molecular Hydrogen", Casey, C. P.; Bullock, R. M.; Nief, F., J. Am. Chem. Soc. 1983, 105, 7574-7580.

  56. "Protonation of Metal-Metal Bonds in Heterobimetallic Compounds Linked by a Heterodifunctional Ligand", Casey, C. P.; Bullock, R. M., J. Organomet. Chem. 1983, 251, 245-248.

  57. "Heterobimetallic Compounds Linked by Heterodifunctional Ligands: Synthesis and X-Ray Crystal Structure of (CO)4MnMo(CO)3[h5-C5H4P(C6H5)2]", Casey, C. P.; Bullock, R. M.; Fultz, W. C.; Rheingold, A. L., Organometallics 1982, 1, 1591-1596.

  58. "Search for Heterobimetallic Dihydrides from the Reaction of H2 with Metal-Metal Bonds", Casey, C. P.; Bullock, R. M., J. Molec. Catal. 1982, 14, 283-292.

  59. "Fluxional Behavior of (CO)4Fe(m-AsMe2)Mo(CO)2(C5H5)", Casey, C. P.; Bullock, R. M., J. Organomet. Chem. 1981, 218, C47-C50.

  60. "Alkyl Nitrite Complexes of Ruthenium Prepared by Acid-Base Chemistry at the Bound Nitrosyl Group", Walsh, J. L.; Bullock, R. M.; Meyer, T. J., Inorg. Chem. 1980, 19, 865-869.