Jack Halpern

Research.com Recognitions

• 2005 - Fellow of the Royal Society of Canada Academy of Science
• 1994 - Welch Award in Chemistry, Robert A. Welch Foundation
• 1984 - Member of the National Academy of Sciences
• 1966 - Fellow of the American Association for the Advancement of Science (AAAS)
• 1959 - Fellow of Alfred P. Sloan Foundation
• 1946 - Fellow of American Physical Society (APS)

Overview

Best Publications

• Asymmetric hydrogenation of methyl (Z)-.alpha.-acetamidocinnamate catalyzed by [1,2-bis(phenyl-o-anisoyl)phosphino)ethane]rhodium(I): kinetics, mechanism and origin of enantioselection

  Clark R. Landis;Jack Halpern

  691
  Citations

• Mechanisms of coenzyme B12-dependent rearrangements.

  Jack Halpern

  647
  Citations

• Mechanism and stereoselectivity of asymmetric hydrogenation.

  Jack Halpern

  574
  Citations

• Assessment of the T1 criterion for distinguishing between classical and nonclassical transition-metal hydrides : hydride relaxation rates in tris(triarylphosphine)osmium tetrahydrides and related polyhydrides

  Peter J. Desrosiers;Lisheng Cai;Zerong Lin;Rosalie Richards

  425
  Citations

• Identification of the enantioselective step in the asymmetric catalytic hydrogenation of a prochiral olefin

  A. S. C. Chan;J. J. Pluth;Jack Halpern

  363
  Citations

• Novel coordination chemistry and catalytic properties of cationic 1,2-bis(diphenylphosphino)ethanerhodium(I) complexes

  Jack Halpern;Dennis P. Riley;Albert S. C. Chan;Joseph J. Pluth

  354
  Citations

• Kinetics of the Addition of Hydrogen, Oxygen, and Methyl Iodide to Some Square-Planar Iridium(I) Complexes1

  Pwen Boon Chock;Jack Halpern

  338
  Citations

• Catalysis of symmetry-restricted reactions by transition metal compounds. Valence isomerization of cubane

  Luigi Cassar;Philip E. Eaton;Jack Halpern

  306
  Citations

• Oxidative-addition reactions of transition metal complexes

  Unknown

  274
  Citations

• Interception and characterization of a hydridoalkylrhodium intermediate in a homogeneous catalytic hydrogenation reaction

  A. S. C. Chan;Jack Halpern

  266
  Citations

• Mechanistic aspects of homogeneous catalytic hydrogenation and related processes

  Jack Halpern

  264
  Citations

• Why does nature not use the porphyrin ligand in vitamin B12

  Maureen K. Geno;Jack Halpern

  240
  Citations

• Hydrogenation of .alpha.-methylstyrene by hydridopentacarbonylmanganese (I). Evidence for a free-radical mechanism

  Ray L. Sweany;Jack Halpern

  238
  Citations

• Activation of carbonhydrogen bonds by metal complexes: Mechanistic, kinetic and thermodynamic considerations

  Jack Halpern

  236
  Citations

• INTRAMOLECULAR REDUCTIVE ELIMINATION OF ALKANES FROM CIS-HYDRIDOALKYLBIS(PHOSPHINE)PLATINUM(II) COMPLEXES

  L. Abis;A. Sen;J. Halpern

  216
  Citations

• Kinetics and mechanism of catalysis of the asymmetric hydrogenation of .alpha.,.beta.-unsaturated carboxylic acids by bis(carboxylato) {2,2'-bis(diphenylphosphino)-1,1'-binaphthyl}ruthenium(II), [RuII(BINAP) (O2CR)2]

  Michael T. Ashby;Jack Halpern

  204
  Citations

• COBALT-CARBON BOND DISSOCIATION ENERGY OF COENZYME B12

  J. Halpern;S.-H. Kim;T. W. Leung

  201
  Citations

• KINETIC DETERMINATION OF TRANSITION METAL-ALKYL BOND DISSOCIATION ENERGIES: APPLICATION TO ORGANOCOBALT COMPOUNDS RELATED TO B12 COENZYMES

  T.-T. Tsou;M. Loots;J. Halpern

  195
  Citations

• Roles of neutral and anionic ruthenium polyhydrides in the catalytic hydrogenation of ketones and arenes

  Donald E. Linn;Jack Halpern

  184
  Citations

• The theory of electron transfer between metal ions in bridged systems

  Unknown

  158
  Citations

• Ligand effects on transition metal-alkyl bond dissociation energies

  Flora T. T. Ng;Garry L. Rempel

  151
  Citations

• Mechanism of the cobalt carbonyl-catalyzed homogeneous hydrogenation of aromatic hydrocarbons

  Harold M. Feder;Jack Halpern

  142
  Citations