Princeton University

128. Pappas, I.; Chirik, P. J. “Synthesis and carbonylation of oxotitanocyclobutanes derived from allene cycloaddition to a monomeric titanocene oxide.” Polyhedron 2014, 84, 67-73.

127. Margulieux, G. W.; Turner, Z. R.; Chirik, P. J. “Synthesis and Ligand Modification Chemistry of a Molybdenum Dinitrogen Complex: Redox and Chemical Activity of a Bis(imino)pyridine Ligand.” Angew. Chem. Int. Ed. 2014, 53, 14211-14215.

126. Darmon, J. M.; Yu, R. P.; Semproni, S. P.; Turner, Z. R.; Stieber, S. C. E.; DeBeer, S.; Chirik, P. J. “Electronic Structure Determination of Pyridine N-Heterocyclic Carbene Iron Dinitrogen Complexes and Neutral Ligand Derivatives.” Organometallics 2014, 33, 5423–5433.

125. Friedfeld, M. R.; Margulieux, G. W.; Schaefer, B. A.; Chirik, P. J. “Bis(phosphine)cobalt Dialkyl Complexes for Directed Catalytic Alkene Hydrogenation.” J. Am. Chem. Soc. 2014, 136, 13178-13181.

124. Scheuermann, M. L.; Semproni, S. P.; Pappas, I.; Chirik, P. J. “Carbon Dioxide Hydrosilylation Promoted by Cobalt Pincer Complexes.” Inorg. Chem. 2014, 53, 9463–9465.

123. Atienza, C. C. H.; Diao, T.; Weller, K. J.; Nye, S. A.; Lewis, K. M.; Delis, J. G. P.; Boyer, J. L.; Roy, A. K.; Chirik, P. J. “Bis(imino)pyridine Cobalt-Catalyzed Dehydrogenative Silylation of Alkenes: Scope, Mechanism, and Origins of Selective Allylsilane Formation.” J. Am. Chem. Soc. 2014, 136, 12108-12118.

122. Milsmann, C.; Semproni, S. P.; Chirik, P. J. “N–N Bond Cleavage of 1,2-Diarylhydrazines and N–H Bond Formation via H-Atom Transfer in Vanadium Complexes Supported by a Redox- Active Ligand.” J. Am. Chem. Soc. 2014, 136, 12099-12107.

121. Semproni, S. P.; Chirik, P. J. “N–H and N–C Bond Formation with an N2-Derived Dihafnium μ- Nitrido Complex.” Organometallics 2014, 33, 3727-3737.

120. Semproni, S. P.; Milsmann, C.; Chirik, P. J. “Four-Coordinate Cobalt Pincer Complexes: Electronic Structure Studies and Ligand Modification by Homolytic and Heterolytic Pathways.” J. Am. Chem. Soc. 2014, 136), 9211-9224.

119. Hoyt, J. M.; Shevlin, M.; Margulieux, G. W.; Krska, S. W.; Tudge, M. T.; Chirik, P. J. “Synthesis and Hydrogenation Activity of Iron Dialkyl Complexes with Chiral Bidentate Phosphines.” Organometallics 2014, 33, 5781-5790.

118. Pappas, I.; Chirik, P. J. “Alkyne Cycloaddition to a Titanocene Oxide as a Route to Cyclopentadienyl Modification.” Angew. Chem. Int. Ed. 2014, 53, 6241-6244.

117. Margulieux, G. M.; Semproni, S. P.; Chirik, P. J. “Photochemically Induced Reductive Elimination as a Route to a Zirconocene Complex with a Strongly Activated N2 Ligand.” Angew. Chem. Int. Ed. 2014, 53, 9189-9192.

116. Obligacion, J. V.; Semproni, S. P.; Chirik, P. J. “Cobalt-Catalyzed C–H Borylation.” J. Am. Chem. Soc. 2014, 136, 4133-4136.

115. Semproni, S. P.; Atienze, C. C. H.; Chirik, P. J. “Oxidative addition and C–H activation chemistry with a PNP pincer-ligated cobalt complex.” Chem. Sci. 2014, 5, 1956-1960.

114. Russel, S. K.; Hoyt, J. M.; Bart, S. C.; Milsmann, C.; Stieber, S. C. E.; Semproni, S. P.; DeBeer, S.; Chirik, P. J. “Synthesis, electronic structure and reactivity of bis(imino)pyridine iron carbene complexes: evidence for a carbene radical.” Chem. Sci. 2014, 5, 1168-1174.

113. Obligacion, J. V.; Chirik, P. J. “Bis(imino)pyridine Cobalt-Catalyzed Alkene Isomerization– Hydroboration: A Strategy for Remote Hydrofunctionalization with Terminal Selectivity.” J. Am. Chem. Soc. 2013, 135, 19107-19110.

112. Friedfeld, M. R.; Shevlin, M.; Hoyt, J. M.; Krska, S. W.; Tudge, M. T.; Chirik, P. J. “Cobalt Precursors for High-Throughput Discovery of Base Metal Asymmetric Alkene Hydrogenation Catalysts.” Science 2013, 342, 1076-1080.

111. Semproni, S. P.; Chirik, P. J. “Activation of Dinitrogen-Derived Hafnium Nitrides for Nucleophilic N-C Bond Formation with a Terminal Isocyanate.” Angew. Chem. Int. Ed. 2013, 125, 13203-13207.

110. Yu, R. R.; Darmon, J. M.; Milsmann, C.; Margulieux, G. W.; Stieber, S. C. E.; DeBeer, S.; Chirik, P. J. “Catalytic Hydrogenation Activity and Electronic Structure Determination of Bis(arylimidazol-2-ylidene)pyridine Cobalt Alkyl and Hydride Complexes.” J. Am. Chem. Soc. 2013, 135, 13168–13184.

109. Semproni, S. P.; Chirik, P. J. “Synthesis of a Base-Free Hafnium Nitride from N2 Cleavage: A Versatile Platform for Dinitrogen Functionalization.” J. Am. Chem. Soc. 2013, 135, 11373– 11383.

108. Obligacion, J. V.; Chirik, P. J. “Highly Selective Bis(imino)pyridine Iron-Catalyzed Alkene Hydroboration.” Org. Lett. 2013, 15, 2680–2683.

107. Atienza, C. C. H.; Milsmann, C.; Semproni, S. P.; Turner, Z. R.; Chirik, P. J. “Reversible Carbon- Carbon Bond Formation Induced by Oxidation and Reduction at a Redox-Active Cobalt Complex.” Inorg. Chem. 2013, 52, 5403–5417.

106. Semproni, S. P.; Knobloch, D. J.; Milsmann, C.; Chirik, P. J. “Redox-Induced N2 Hapticity Switching in Zirconocene Dinitrogen Complexes.” Angew. Chem. Int. Ed. 2013, 52, 5372– 5376.

105. Semproni, S. P.; Chirik, P. J. “Dinitrogen Borylation with Group 4 Metallocene Complexes.” Eur. J. Inorg. Chem. 2013, 22-23, 3907–3915.

104. Hoyt, J. M.; Sylvester, K. T.; Semproni, S. P.; Chirik, P. J. “Synthesis and electronic structure of bis(imino)pyridine iron metallocyclic intermediates in iron-catalyzed cyclization reactions.” J. Am. Chem. Soc. 2013, 135, 4862-4877.

103. Tondreau, A. M.; Stieber, S. C. E.; Milsmann, C.; Lobkovsky, E.; Weyhermüller, T.; Semproni, S. P.; Chirik, P. J. “Oxidation and reduction of bis(imino)pyridine iron dinitrogen complexes: Evidence for formation of a chelate trianion.” Inorg. Chem. 2013, 51, 635-646.

102. Darmon, J. D.; Stieber, S. C. E.; Sylvester, K. T.; Fernández, I.; Lobkovsky, E.; Semproni, S. P.; Bill, E.; Wieghardt, K.; DeBeer, S.; Chirik, P. J. “Oxidative addition of carbon-carbon bonds with a redox-active bis(imino)pyridine iron complex.” J. Am. Chem. Soc. 2012, 134, 17125-17137.

101. Atienza, C. C. H.; Tondreau, A. M.; Weller, K. J.; Lewis, K. M.; Cruse, R. W.; Nye, S. A.; Boyer, J. L.; Delis, J. G. P.; Chirik, P. J. “High-selectivity bis(imino)pyridine iron catalysts for the hydrosilylation of 1,2,4-trivinylcyclohexane.” ACS Catalysis 2012, 2, 2169-2172.

100. Semproni, S. P.; Margulieux, G. W.; Chirik, P. J. “Di- and tetrametallic hafnocene oxamidides prepared from CO-induced N2 bond cleavage and thermal rearrangement to hafnocene cyanide derivatives.” Organometallics 2012, 31, 6278-6287.

99. Yu, R. P.; Darmon, J. M.; Hoyt, J. M.; Margulieux, G. W.; Turner, Z. R.; Chirik, P. J. “High-activity iron catalysts for the hydrogenation of hindered, unfunctionalized alkenes.” ACS Catalysis 2012, 2, 1760-1764.

98. Tondreau, A. M.; Atienza, C. C. H.; Darmon, J. M.; Milsmann, C.; Hoyt, H. M.; Weller, K. J.; Nye, S. A.; Lewis, K. M.; Boyer, J.; Delis, J. G. P.; Lobkovsky, E.; Chirik, P. J. “Synthesis, electronic structure and alkene hydrosilylation activity of terpyridine and bis(imino)pyridine iron dialkyl complexes.” Organometallics 2012, 31, 4886-4893.

97. Semproni, S. P.; Milsmann, C.; Chirik, P. J. “Side-on dinitrogen complexes of titanocenes with disubstituted cyclopentadienyl ligands: Synthesis, structure and spectroscopic characterization.” Organometallics 2012, 31, 3672-3682.

96. Semproni, S. P.; Milsmann, C.; Chirik, P. J. “Structure and reactivity of a hafnocene -nitrido prepared from dinitrogen cleavage.” Angew. Chem. Int. Ed. 2012, 51, 5213-5216.

95. Milsmann, C.; Turner, Z. R.; Semproni, S. P.; Chirik, P. J. “Azo N=N bond cleavage with a redox- active vanadium compound involving metal-ligand cooperativity.” Angew. Chem. Int. Ed. 2012, 51, 5386-5390.

94. Monfette, S.; Turner, Z. R.; Semproni, S. P.; Chirik, P. J. “Enantiopure, C1-symmetric bis(imino)pyridine cobalt complexes for asymmetric alkene hydrogenation.” J. Am. Chem. Soc. 2012, 134, 4561-4564. Highlighted in Nature Chemistry, 2012, 4, 337.

93. Darmon, J. D.; Turner, Z. R.; Lobkovsky, E.; Chirik, P. J. “Electronic effects in 4-substituted bis(imino)pyridines and the corresponding reduced iron compounds.” Organometallics 2012, 31,2275-2285.

92. Steiber, S. C. E.; Milsmann, C.; Hoyt, J. M.; Turner, Z. R.; Finkelstein, K. D.; Wieghardt, K.; DeBeer, S.; Chirik, P. J. “Bis(imino)pyridine iron dinitrogen compounds revisited: Differences in electronic structure between four- and five-coordinate derivatives.” Inorg. Chem. 2012, 51, 3770- 3785.

91. Tondreau, A. M.; Atienza, C. C. H.; Weller, K. J.; Nye, S. A.; Lewis, K. M.; Delis, J. G. P.; Chirik, P. J. “Iron catalysts for selective anti-Markovnikov alkene hydrosilylation using tertiary silanes.” Science 2012, 335, 567-570.

90. Knobloch, D. J.; Semproni, S. P.; Lobkovsky, E.; Chirik, P. J. “Studies into the mechanism of CO- induced N2 cleavage and C-C bond formation promoted by an ansa-hafnocene complex.” J. Am. Chem. Soc. 2012, 134, 3377-3386.

89. Bowman, A. C.; Milsmann, C.; Bill, E.; Turner, Z. R.; Lobkovsky, E.; DeBeer, S.; Wieghardt, K.; Chirik, P. J. “Synthesis and electronic structure determination of N-alkyl-substituted bis(imino)pyridine iron imides exhibiting spin cross behavior.” J. Am. Chem. Soc. 2011, 133, 17353-17369.

88. Chirik, P. J. “Preface: Forum on redox-active ligands.” Inorg. Chem. 2011, 50, 9737-9740.

87. Russell, S. K.; Bowman, A. C.; Lobkovsky, E.; Wieghardt, K.; Chirik, P. J. “Synthesis and electronic structure of reduced bis(imino)pyridine manganese compounds.” Eur. J. Inorg. Chem. 2011, 535-545. (Special issue on ligand-centered radicals).

86. Semproni, S. P.; Lobkovsky, E.; Chirik, P. J. “Dinitrogen silylation and cleavage with a hafnocene complex.” J. Am. Chem. Soc. 2011, 133, 10406-10409.

85. Tondreau, A. M.; Milsmann, C.; Lobkovsky, E.; Chirik, P. J. “Oxidation and reduction of bis(imino)pyridine iron dicarbonyl complexes.” Inorg. Chem. 2011, 50, 9888-9895.

84. Atienza, C. C. H.; Milsmann, C.; Lobkovsky, E.; Chirik, P. J. “Synthesis, electronic structure and ethylene polymerization activity of bis(imino)pyridine cobalt alkyl cations.” Angew. Chem. Int. Ed. 2011, 50, 8143-8147 (Article Featured on Cover)

83. Russell, S. K.; Lobkovsky, E.; Chirik, P. J. “An iron-catalyzed intermolecular [2 + 2] cycloaddition.” J. Am. Chem. Soc. 2011, 133, 8858-8861.

82. Pun, D.; Knobloch, D. J.; Lobkovsky, E.; Chirik, P. J. “Cyclisation of , -dienes promoted by bis(indenyl)zirconium sandwich and ansa-titanocene dinitrogen complexes.” Dalton Trans. 2011, 7737-7747 (Special Issue on d0 Metallocenes).

81. Russell, S. K.; Milsmann, C.; Lobkovsky, E.; Weyhermüller, T.; Chirik, P. J. “Synthesis, electronic structure, and catalytic activity of reduced bis(aldimino)pyridine iron compounds: Experimental evidence for ligand participation.” Inorg. Chem. 2011, 50, 3159.

Cornell University

80. Atienza, C. C. H.; Bowman, A. C.; Lobkovsky, E.; Chirik, P. J. “Photolysis and thermolysis of bis(imino)pyridine cobalt azides: C-H activation from putative cobalt nitrido complexes.” J. Am. Chem. Soc. 2010, 132, 16343-16345.

79. Knobloch, D. J.; Lobkovsky, E.; Chirik, P. J. “Functionalization of hafnium oxamidide complexes prepared from CO-induced N2 cleavage.” J. Am. Chem. Soc. 2010, 132, 15340-15350.

78. Tondreau, A. M.; Milsmann, C.; Patrick, A. D.; Hoyt, H. M.; Lobkovsky, E.; Wieghardt, K.; Chirik, P. J. “Synthesis and electronic structure of cationic, neutral, and anionic bis(imino)pyridine iron alkyl complexes: Evaluation of redox activity in single-component ethylene polymerization catalysts.” J. Am. Chem. Soc. 2010, 132, 15046-15059.

77. Knobloch, D. J.; Lobkovsky, E.; Chirik, P. J. “Carbon monoxide-induced dinitrogen cleavage with group 4 metallocenes: Reaction scope and coupling to N-H bond formation and C-O deoxygenation.” J. Am. Chem. Soc. 2010, 132, 10553-10564.

76. Bowman, A. C.; Milsmann, C.; Bill, E.; Lobkovsky, E.; Weyhermüller, T.; Wieghardt, K.; Chirik, P. J. “Reduced N-alkyl substituted bis(imino)pyridine cobalt complexes: Molecular and electronic structure for compounds varying by three oxidation states.” Inorg. Chem. 2010, 49, 6110-6123.

75. Pun, D.; Lobkovsky, E.; Keresztes, I.; Chirik, P. J. “Cyclopentanone insertion into 9-indenyl rings of zirconium sandwich complexes.” Organometallics 2010, 29, 1789-1796.

74. Chirik, P. J. “Group 4 transition metal sandwich complexes: Still fresh after almost 60 years.” Organometallics 2010, 29, 1500-1517.

73. Chirik, P. J.; Wieghardt, K. W. “Radical ligands confer nobility of base-metal catalysts.” Science 2010, 327, 794-795.

72. Russell, S. K.; Darmon, J. D.; Lobkovsky, E.; Chirik, P. J. “Synthesis of aryl-substituted bis(imino)pyridine iron dinitrogen complexes.” Inorg. Chem. 2010, 49, 2782-2892.

71. Bowman, A. C.; Milsmann, C.; Atienza, C. C. H. A.; Lobkovsky, E.; Wieghardt, K.; Chirik, P. J. “Synthesis, molecular and electronic structures of reduced bis(imino)pyridine cobalt dinitrogen complexes: Ligand versus metal reduction.” J. Am. Chem. Soc. 2010, 131, 1676-1684.

70. Knobloch, D. J.; Lobkovsky, E.; Chirik, P. J. “Dinitrogen cleavage and functionalization by carbon monoxide promoted by a hafnium complex.” Nature Chemistry 2010, 2, 30-35.

69. Knobloch, D. J.; Benito-Garagorri, D.; Bernskoetter, W. H.; Keresztes, I.; Lobkovsky, E.; Toomey, H.; Chirik, P. J. “Addition of methyl triflate to a hafnocene dinitrogen complex: Stepwise N2 methylation and conversion to a hafnocene hydrazonato compound.” J. Am. Chem. Soc. 2009, 131, 14903-14912.

68. Chirik, P. J. “Nitrogen fixation – one electron at a time.” Nature Chem. 2009, 1, 520-521.

67. Benito-Garagorri, D.; Bernskoetter, W. H.; Lobkovsky, E.; Chirik, P. J. “1,4-Addition of alkyl halides to a side-on bound hafnocene dinitrogen complex.” Organometallics 2009, 28, 4807- 4813.

66. Hanna, T. E; Lobkovsky, E.; Chirik, P. J. “Dinitrogen complexes of bis(cyclopentadienyl) titanium derivatives: Structure diversity arising from substituent manipulation.” Organometallics 2009, 28, 4079-4088.

65. Tondreau, A. M.; Darmon, J. M.; Wile, B. M.; Floyd, S. K.; Lobkovsky, E.; Chirik, P. J. “Enantiopure pyridine bis(oxazoline) “Pybox” and bis(oxazoline) “Box” iron dialkyl complexes: Comparison to bis(imino)pyridine compounds and application to catalytic hydrosilylation of ketones.” Organometallics 2009, 28, 3928-3940.

64. Sylvester, K. T.; Chirik, P. J. “Iron-catalyzed, hydrogen-mediated reductive cyclization of 1,6- enynes and diynes: Evidence for bis(imino)pyridine ligand participation.” J. Am. Chem. Soc. 2009, 131, 8772-8774.

63. Bowman, A. C.; Bart, S. C.; Heinemann, F. W.; Meyer, K.; Chirik, P. J. “Synthesis of bis(imino)pyridine iron amide and ammonia compounds from an N-H transfer agent.” Inorg. Chem. 2009, 48, 5587-5589.

62. Pun, D.; Leopold, S. M.; Bradley, C. A.; Lobkovsky, E.; Chirik, P. J. “Bis(indenyl)hafnium chemistry: Ligand-induced haptotropic rearrangement and fundamental reactivity studies at a reduced hafnium center.” Organometallics 2009, 28, 2471-2484.

61. Chirik, P. J. “Iron Catalysis in Organic Chemistry: Reactions and Applications” (Book Review) J. Am. Chem. Soc. 2009, 131, 3788-3789.

60. Russell, S. K.; Lobkovsky, E.; Chirik, P. J. “N-N bond cleavage in diazoalkanes by a bis(imino)pyridine iron complex.” J. Am. Chem. Soc. 2009, 131, 36-37.

59. Wile, B. M.; Trovitch, R. J.; Bart, S. C.; Tondreau, A. M.; Lobkovsky, E.; Milsmann, C.; Bill, E.; Wieghardt, K.; Chirik, P. J. “Reduction chemistry of aryl- and alkyl-substituted bis(imino)pyridine iron dihalide compounds: Molecular and electronic structures of [(PDI)2Fe] derivatives.” Inorg. Chem. 2009, 48, 4190-4200.

58. Trovitch, R.; Lobkovsky, E.; Bouwkamp, M.; Chirik, P. J. “Carbon-oxygen bond cleavage in bis(imino)pyridine compounds: Catalyst deactivation pathways and observation of acyl C-O bond cleavage in esters.” Organometallics 2008, 27, 6264-6278.

57. Pun, D.; Bradley, C. A.; Lobkovsky, E.; Keresztes, I.; Chirik, P. J. “N2 hydrogenation from activated end-on bis(indenyl)zirconium dinitrogen complexes.” J. Am. Chem. Soc. 2008, 130, 14046-14047.

56. Trovitch, R. J.; Lobkovsky, E.; Chirik, P. J. “Bis(imino)pyridine iron alkyls containing -hydrogens: Synthesis, evaluation of kinetic stability, and decomposition pathways involving chelate participation.” J. Am. Chem. Soc. 2008, 130, 11631-11640.

55. Tondreau, A. M.; Lobkovsky, E.; Chirik, P. J. “Bis(imino)pyridine iron complexes for aldehyde and ketone hydrosilylation.” Org. Lett. 2008, 10, 2789-2792.

54. Pun, D.; Lobkovsky, E.; Chirik, P. J. “Indenyl dinitrogen chemistry: N2 coordination to an isolated zirconium sandwich and synthesis of side-on, end-on dinitrogen compounds.” J. Am. Chem. Soc. 2008, 130, 6047-6054.

53. Knobloch, D. J.; Toomey, H. E.; Chirik, P. J. “Carboxylation of an ansa-zirconocene dinitrogen complex: Regiospecific hydrazine synthesis from N2 and CO2.” J. Am. Chem. Soc. 2008, 130, 4248-4249.

52. Trovitch, R. J.; Lobkovsky, E.; Bill, E.; Chirik, P. J. “Functional group tolerance and substrate scope in bis(imino)pyridine iron catalyzed alkene hydrogenation.” Organometallics 2008, 27, 1470-1478.

51. Toomey, H. E.; Pun, D.; Veiros, L. F.; Chirik, P. J. “1,2-Addition versus -Bond metathesis reactions in transient bis(cyclopentadienyl)zirconium imidos: Evidence for a d0 dihydrogen complex.” Organometallics 2008, 27, 872-879.

50. Fernández, I.; Trovitch, R. J.; Lobkovsky, E.; Chirik, P. J. “Synthesis of bis(imino)pyridine iron di- and monoalkyl complexes: Stability differences between FeCH2SiMe3 and FeCH2CMe3 derivatives.” Organometallics 2008, 27, 109-118.

49. Bart, S. C.; Lobkovsky, E.; Bill, E.; Weighardt, K.; Chirik, P. J. “Neutral-ligand complexes of bis(imino)pyridine iron: Synthesis, structure and spectroscopy.” Inorg. Chem. 2007, 46, 7055- 7063.

48. Pun, D.; Lobkovsky, E.; Chirik, P. J. “Amineborane dehydrogenation promoted by isolable zirconium sandwich, titanium sandwich and N2 complexes.” Chem. Commun. 2007, 3297-3299.

47. Bart, S. C.; Bowman, A. C.; Lobkovsky, E.; Chirik, P. J. “Iron diazoalkane chemistry: N-N bond hydrogenation and intramolecular C-H activation.” J. Am. Chem. Soc. 2007, 129, 7212-7213.

46. Bradley, C. A.; Veiros, L. F.; Chirik, P. J. “C-O and C-S bond cleavage in chelating diethers and thioethers promoted by 9, 5-bis(indenyl)zirconium sandwich complexes: A combined experimental and computational study.” Organometallics 2007, 26, 3191-3200.

45. Hanna, T. E.; Bernskoetter, W. H.; Bouwkamp, M. W.; Lobkovsky, E.; Chirik, P. J. “Bis(cyclopentadienyl)titanium dinitrogen chemistry: Synthesis and characterization of a side-on bound haptomer.” Organometallics 2007, 26, 2431-2438.

44. Hanna, T. E.; Lobkovsky, E.; Chirik, P. J. “Dihydrogen and silane addition to base-free, monomeric bis(cyclopentadienyl) titanium oxides.” Inorg. Chem. 2007, 46, 2359-2361.

43. Hanna, T. E.; Lobkovsky, E.; Chirik, P. J. “N-H group transfer and oxidative addition chemistry promoted by isolable bis(cyclopentadienyl)titanium sandwich complexes.” Eur. J. Inorg. Chem. 2007, 2677-2685.

42. Hanna, T. E.; Keresztes, I.; Lobkovsky, E.; Chirik, P. J. “Diazene dehydrogenation follows H2 addition to coordinated dinitrogen in an ansa-zirconocene complex.” Inorg. Chem. 2007, 46, 1675 - 1683.

41. Bernskoetter, W. H.; Lobkovsky, E.; Chirik, P. J. “Nitrogen-carbon bond formation from N2 and CO2 promoted by a hafnocene dinitrogen complex yields a substituted hydrazine.” Angew. Chem. Int. Ed. 2007, 2858-2861. (Article Featured on Cover)

40. Chirik, P. J. “Dinitrogen functionalization with bis(cyclopentadienyl) complexes of zirconium and hafnium.” Dalton Trans. 2007, 16-26. (Invited Feature Article, Featured on Cover).

39. Bradley, C. A.; Veiros, L. F.; Pun, D.; Lobkovsky, E.; Keresztes, I. Chirik, P. J. “Carbon-oxygen bond cleavage with 9, 5-bis(indenyl)zirconium sandwich complexes.” J. Am. Chem. Soc. 2006, 128, 16600-16612.

38. Chirik, P. J. “An Fe(VI) nitride: There is plenty of room at the top!” Angew. Chem. Int. Ed. 2006, 45, 6956-6958.

37. Bart, S. C.; Chlopek, K.; Bill, E.; Bouwkamp, M. W.; Lobkovsky, E.; Neese, F.; Wieghardt, K.; Chirik, P. J. “Electronic structure of bis(imino)pyridine iron dichloride, monochloride and neutral ligand complexes: A combined, structural, spectroscopic and computational study.” J. Am. Chem. Soc. 2006, 128, 13901-13912.

36. Bouwkamp, M. W.; Bowman, A. C. Lokbovsky, E.; Chirik, P. J. “Iron-catalyzed [2 + 2] cycloaddition of , -dienes: The importance of redox-active supporting ligands.” J. Am. Chem. Soc. 2006, 128, 13340-13341.

35. Trovitch, R. J.; Lobkovsky, E.; Chirik, P. J. “Bis(diisopropylphosphino)pyridine iron dicarbonyl, dihydride, and silyl hydride complexes.” Inorg. Chem. 2006, 45, 7252-7260.

34. Archer, A. M.; Bouwkamp, M. W.; Cortez, M. –P.; Lobkovsky, E.; Chirik, P. J. “Arene coordination in bis(imino)pyridine iron complexes: Identification of catalyst deactivation pathways in iron- catalyzed hydrogenation and hydrosilation.” Organometallics 2006, 25, 4269-4278.

33. Bernskoetter, W. H.; Olmos, A. V.; Pool, J. A.; Lobkovsky, E.; Chirik, P. J. “N-C bond formation promoted by a hafnocene dinitrogen complex: Comparison of zirconium and hafnium congeners.” J. Am. Chem. Soc. 2006, 128, 10696-10697.

32. Bradley, C. A.; Lobkovsky, E.; Keresztes, I.; Chirik, P. J. “Synthesis of bis(indenyl)zirconium dihydrides and subsequent rearrangement to 5, 3-4,5-dihydroindendiyl ligands: Evidence for intermediates during the hydrogenation to tetrahydroindenyl derivatives” J. Am. Chem. Soc. 2006, 128, 6454-6467.

31. Hanna, T. E.; Lobkovsky, E.; Chirik, P. J. “Mono(dinitrogen) and carbon monoxide adducts of bis(cyclopentadienyl) titanium sandwiches” J. Am. Chem. Soc. 2006, 128, 6018-6019.

30. Bart, S. C.; Lobkovsky, E.; Bill, E.; Chirik, P. J. “Synthesis and hydrogenation of bis(imino)pyridine iron imides” J. Am. Chem. Soc. 2006, 128, 5302-5303.

29. Bradley, C. A.; Keresztes, I.; Lobkovsky, E.; Chirik, P. J. “The ‘Indenyl Effect’ in zirconocene dihydride chemistry.” Organometallics 2006, 25, 2080-2089.

28. Bernskoetter, W. H.; Pool, J. A.; Lobkovsky, E.; Chirik, P. J. “Carbon-hydrogen bond activation with a cyclometalated zirconocene hydride: Mechanistic differences between arene and alkane reductive elimination.” Organometallics 2006, 25, 1092-1100.

27. Bernskoetter, W. H.; Olmos, A. V.; Lobkovsky, E.; Chirik, P. J. “N2 hydrogenation promoted by a side-on bound hafnocene dinitrogen complex.” Organometallics 2006, 25, 1021-1027.

26. Bouwkamp, M. W.; Lobkovsky, E.; Chirik, P. J. “Bis(imino)pyridine ligand deprotonation promoted by a transient iron amide” Inorg. Chem. 2006, 45, 2-4. (Article featured on the cover).

25. Bernskoetter, W. H.; Lobkovsky, E.; Chirik, P. J. “Ancillary ligand effects on C-H bond activation reactions promoted by -diiminate iridium complexes.” Organometallics 2005, 24, 6250-6259.

24. Bart, S. C.; Hawrelak, E. J.; Lobkovsky, E.; Chirik, P. J. “Low-valent -diimine complexes for catalytic olefin hydrogenation.” Organometallics 2005, 24, 5518-5527.

23. Bernskoetter, W. H.; Lobkovsky, E.; Chirik, P. J. “Kinetics and mechanism of N2 hydrogenation in bis(cyclopentadienyl)zirconium complexes and dinitrogen functionalization by 1,2-addition of a saturated C-H bond.” J. Am. Chem. Soc. 2005, 127, 14051-14061.

22. Bernskoetter, W. H.; Lobkovsky, E.; Chirik, P. J. “C-H bond activation reactions with ligand adducts of a -diiminate iridium dihydride.” Organometallics 2005, 24, 4367-4373.

21. Bradley, C. A.; Lobkovsky, E.; Keresztes, I.; Chirik, P. J. “Ligand-induced haptotropic rearrangements in bis(indenyl)zirconium sandwich complexes.” J. Am. Chem. Soc. 2005, 127, 10291-10304.

20. Bouwkamp, M. W.; Lobkovsky, E.; Chirik, P. J. “Bis(imino)pyridine iron(II) alkyl cations for olefin polymerization.” J. Am. Chem. Soc. 2005, 127, 9660-9661.

19. Bouwkamp, M. W.; Bart, S. C.; Hawrelak, E. J.; Trovitch, R. J.; Lobkovsky, E.; Chirik, P. J. “Square planar bis(imino)pyridine iron halide and alkyl complexes.” Chem. Commun. 2005, 3406- 3408.

18. Bernskoetter, W. H.; Pool, J. A.; Lobkovsky, E.; Chirik, P. J. “Dinitrogen functionalization with 5 2 2 terminal alkynes, amines and hydrazines promoted by [( -C5Me4H)2Zr]2(2,  ,  -N2): Observation of side-on and end-on diazenido complexes in the reduction of N2 to hydrazine.” J. Am. Chem. Soc. 2005, 127, 7901-7911.

17. Hawrelak, E. J.; Bernskoetter, W. H.; Lobkovsky, E.; Yee, G.; Bill, E.; Chirik, P. J. “Square planar versus tetrahedral geometry in four coordinate iron(II) complexes.” Inorg. Chem. 2005, 44, 3103- 3111.

16. Pool, J. A.; Chirik, P. J. “The importance of cyclopentadienyl substituent effects in group 4 metallocene dinitrogen chemistry” Can. J. Chem. 2005, 83, 286-296 (Invited).

15. Bradley, C. A.; Keresztes, I.; Lobkovsky, E.; Young, V. G.; Chirik, P. J. “Zirconium sandwich complexes with 9 indenyl ligands: Well-defined precursors for zirconocene-mediated coupling reactions.” J. Am. Chem. Soc. 2004, 126, 16937-16950.

14. Hanna, T. E.; Lobkovsky, E.; Chirik, P. J. “Dinitrogen activation by titanium sandwich complexes.” J. Am. Chem. Soc. 2004, 126, 14688-14689.

13. Pool, J. A.; Bernskoetter, W. H.; Chirik, P. J. “On the origin of dinitrogen hydrogenation promoted 5 2 2 by [( -C5Me4H)2Zr]2(2,  ,  -N2).” J. Am. Chem. Soc. 2004, 126, 14326-14327.

12. Bradley, C. A.; Flores-Torres, S.; Lobkovsky, E.; Abruna, H. D.; Chirik, P. J. “Synthesis and characterization of zirconium and iron complexes containing substituted indenyl ligands: Evaluation of steric and electronic parameters.” Organometallics 2004, 23, 5332-5346.

11. Bart, S. C.; Lobkovsky, E.; Chirik, P. J. “Preparation and molecular and electronic structures of iron(0) dinitrogen and silane complexes and their application to catalytic hydrogenation and hydrosilation.” J. Am. Chem. Soc. 2004, 126, 13794-13807.

10. Bernskoetter, W. H.; Lobkovsky, E.; Chirik, P. J. “Synthesis of a -diiminate iridium tetrahydride for arene C-H bond activation.” Chem. Comm. 2004, 763-764.

9. Pool, J. A.; Lobkovsky, E.; Chirik, P. J. “Hydrogenation and cleavage of dinitrogen to ammonia with a well-defined zirconium complex.” Nature 2004, 427, 527-530.

8. Hanna, T. E.; Keresztes, I.; Lobkovsky, E.; Bernskoetter, W. H., Chirik, P. J. “Synthesis of a base- free titanium imido and a transient alkylidene from a titanocene dinitrogen complex. Studies on Ti=NR hydrogenation, nitrene group transfer and comparison of 1,2-addition rates. Organometallics 2004, 23, 3448-3458.

7. Bart, S. C.; Hawrelak, E. J.; Schmisseur, A. K.; Lobkovsky, E.; Chirik, P. J. “Synthesis, reactivity and solid state structures of four-coordinate iron(II) and manganese(II) alkyl complexes.” Organometallics 2004, 24, 237-246.

6. Bradley, C. A.; Lobkovsky, E.; Chirik, P. J. “Synthesis of a zirconium sandwich complex and crystallographic characterization of its adduct with tetrahydrofuran.” J. Am. Chem. Soc. 2003, 125, 8110-8111.

5. Pool, J. A.; Lobkovsky, E.; Chirik, P. J. “Alkyl substituent effects on reductive elimination reactions in zirconocene alkyl hydride complexes. Manipulation of the alkyl steric environment allows the synthesis of a zirconocene dinitrogen complex.” Organometallics 2003, 22, 2797-2805.

4. Pool, J. A.; Lobkovsky, E.; Chirik, P. J. “Cyclopentadienyl substituent effects on reductive elimination reactions in group 4 metallocenes: kinetics, mechanism and application to dinitrogen activation.” J. Am. Chem. Soc. 2003, 125, 2241-2251.

3. Bart, S. C.; Chirik, P. J. “Selective, catalytic carbon-carbon bond activation and functionalization promoted by late transition metal catalysts.” J. Am. Chem. Soc. 2003, 125, 886-887.

2. Pool, J. A.; Lobkovsky, E.; Chirik, P. J. “Functionalization of elemental phosphorus with [(5- 5 C5Me5)( -C5H5tBu)ZrH2]2.” Angew. Chem. Int. Ed. 2002, 41, 3463-3466.

1. Pool, J. A.; Bradley, C. A.; Chirik, P. J. “A convenient method for the preparation of zirconocene hydrido chloride, isobutyl hydride and dihydride complexes with tert-butyl lithium.” Organometallics 2002, 21, 1271-1277.

Publications Prior to Cornell and Princeton

7. Chirik, P. J.; Bercaw , J. E. “Ancillary ligand and substituent effects on olefin insertion and b- hydrogen elimination with group 4 metallocenes. Kinetics, mechanism and thermodynamics for zirconocene and hafnocene alkyl hydride derivatives.” Organometallics 2005, 24, 5407-5423.

6. Chirik, P. J.; Dalleska, N. F.; Henling, L. M.; Bercaw, J. E. “Experimental evidence for g-agostic assistance in -methyl elimination, the microscopic reverse of a-agostic assistance in the chain propagation step of olefin polymerization.” Organometallics 2005, 24, 2789-2794.

5. Chirik, P. J.; Zubris, D. L.; Ackerman, L. J.; Henling, L. M.; Day, M. W.; Bercaw, J. E. “Preparation of ansa-niobocene and ansa-tantalocene olefin hydride complexes as transition state analogues in metallocene-catalyzed olefin polymerization.” Organometallics 2003, 22, 172-187.

4. Chirik, P. J.; Henling, L. M.; Bercaw, J. E. “Synthesis of Singly and Doubly Bridged Ansa- Zirconocene Hydrides. Formation of an Unusual Mixed Valence Trimeric Hydride by Reaction of 5 H2 with {(Me2Si)2( -C5H3)2}Zr(CH3)2 and Generation of a Dinitrogen Complex by Reaction of N2 with a Zirconocene Dihydride.” Organometallics 2001, 20, 534-544

3. Chirik, P. J.; Day, M. W.; Labinger, J. A.; Bercaw, J. E. “Alkyl rearrangement processes in group IV metallocene chemistry. Identification of internal alkyl complexes during hydrozirconation.” J. Am. Chem. Soc. 1999, 121, 10308-10317.

2. Chirik, P. J.; Day, M. W.; Bercaw, J. E. “Preparation and characterization of monomeric and dimeric group IV metallocene dihydrides having alkyl-substituted cyclopentadienyl ligands.” Organometallics 1999, 18, 1873-1881.

1. Chirik, P. J.; Bercaw, J. E. “Group 3 Metallocenes” in The Metallocenes; Togni, A.; Halterman, R. L.; Eds. Wiley-VCH Publishers, New York, 1998 (Invited).