THE CHIRIK GROUP
67) Addition of Methyl Triflate to a Hafnocene Dinitrogen Complex: Stepwise N2 Methylation and Conversion to a Hafnocene Hydrazonato Compound
66) 1,4-Addition of Alkyl Halides to a Side-on Bound Hafnocene Dinitrogen Complex
65) Dinitrogen Complexes of Bis(cyclopentadienyl) Titanium Derivatives: Structural Diversity Arising from Substituent Manipulation
Hanna, T. E.; Lobkovsky, E.; Chirik, P. J. Organometallics 2009, 28, 4079–4088.
64) 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
63) Iron-Catalyzed, Hydrogen-Mediated Reductive Cyclization of 1,6-Enynes and Diynes: Evidence for Bis(imino)pyridine Ligand Participation
Sylvester, K. T.; Chirik, P. J. J. Am. Chem. Soc. 2009, 131, 8772–8774.
62) Synthesis of Bis(imino)pyridine Iron Amide and Ammonia Compounds from an N-H Transfer Agent
61) Bis(indenyl)hafnium Chemistry: Ligand-Induced Haptotropic Rearrangement and Fundamental Reactivity Studies at a Reduced Hafnium Center
Pun, D.; Leopold, S.; Bradley, C.; Lobkovsky, E.; Chirik, P. Organometallics 2009, ASAP.
60) N–N Bond Cleavage in Diazoalkanes by a Bis(imino)pyridine Iron Complex
Russell, S. K.; Lobkovsky, E.; Chirik, P. J. J. Am. Chem. Soc. 2008, 131, 36–37.
59) Reduction Chemistry of Aryl- and Alkyl-Substituted Bis(imino)pyridine Iron Dihalide Compounds: Molecular and Electronic Structures of [(PDI)2Fe] Derivatives
58) Carbon–Oxygen Bond Cleavage by Bis(imino)pyridine Iron Compouns: Catalyst Deactivation Pathways and Observation of Acyl C–O Bond Cleavage in Esters
Trovitch, R.; Lobkovsky, E.; Bouwkamp, M.; Chirik, P. Organometallics. 2008. 27, 6264–6278.
57) N2 Hydrogenation from Activated End-On Bis(indenyl) Zirconium Dinitrogen Complexes
56) Bis(imino)pyridine Iron Alkyls Containing β-Hydrogens: Synthesis, Evaluation of Kinetic Stabiliity, and Decomposition Pathways Involving Chelate Participation
Trovitch, R. J.; Lobkovsky, E.; Chirik, P. J. J. Am. Chem. Soc. 2008, 130, 11631–11640.
55) Bis(imino)pyridine Iron Complexes for Aldehyde and Ketone Hydrosilylation
Tondreau, A.; Lobkovsky, E.; Chirik, P. Org. Lett. 2008, 2789–2792.
54) Indenyl Zirconium Dinitrogen Chemistry: N2 Coordination to an Isolated ZIrconium Sandwich and Synthesis of Side-On, End-On Dinitrogen Compounds
Pun, D.; Lobkovsky, E.; Chirik, P. J. Am. Chem. Soc. 2008, 130, 6047–6054.
53) Functional Group Tolerance and Substrate Scope in Bis(imino)pyridine Iron Catalyzed Alkene Hydrogenation
Trovitch, R. J.; Lobkovsky, E.; Bill, E.; Chirik, P. Organometallics. 2008, 1470-1478.
52) Carboxylation of an ansa-Zirconocene Dinitrogen Complex: Regiospecific Hydrazine Synthesis from N2 and CO2
Knobloch, D.; Toomey, H.; Chirik, P. J. Am. Chem. Soc. 2008. 4248-4249.
51) 1,2-Addition versus sigma-Bond Metathesis Reactions in Transient Bis(cyclopentadienyl)zirconium imides: Evidence for a d0 Dihydrogen Complex
Toomey, H. E.; Pun, D.; Veiros, L. F.; Chirik, P. J. Organometallics, 2008, 872-879.
50) Synthesis of Bis(imino)pyridine Iron Di- and Monoalkyl Complexes: Stability Differences between FeCH2SiMe3 and FeCH2CMe3 Derivatives
Fernández, I.; Trovitch, R.J.; Lobkovsky, E.; Chirik, P. Organometallics, 2008, 27, 109-118.
49) Neutral –ligand complexes of bis(imino)pyridine iron: Synthesis, structure and spectroscopy.
Bart, S. C.; Lobkovsky, E.; Bill, E.; Weighardt, K.; Chirik, P. J. Inorg. Chem. 2007, 46, 7055-7063.
48) Amineborane dehydrogenation promoted by isolable zirconium sandwich, titanium sandwich and N2 complexes.
Pun, D.; Lobkovsky, E.; Chirik, P. J. Chem. Commun. 2007, 3297-3299.
47) N-H Group Transfer and Oxidative Addition Chemistry Promoted by Isolable Bis(cyclopentadienyl)titanium Sandwich Complexes.
Hanna, T. E.; Lobkovsky, E.; Chirik, P. J. Eur. J. Inorg Chem. 2007, 2677-2685.
46) Iron Diazoalkane Chemistry: N-N Bond Hydrogenation and Intramolecular C-H Activation.
Bart, S. C.; Bowman, A. C.; Lobkovsky, E.; Chirik, P. J. J. Am. Chem. Soc. 2007, 129, 7212-7213.
45) 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.
Bradley, C. A.; Veiros, L. F.; Chirik, P. J. J. Am. Chem. Soc. 2007, 129, 3191-3200.
44) Bis(cyclopentadienyl) Titanium Dinitrogen Chemistry: Synthesis and Characterization of a Side-on Bound Haptomer.
43) Dihydrogen and Silane Addition to Base-Free, Monomeric Bis(cyclopentadienyl)titanium Oxides.
Hanna, T. E.; Lobkovsky, E.; Chirik, P. J. Inorg. Chem. 2007, 46, 2359-2361.
42) Diazene Dehydrogenation Follows H2 Addition to Coordinated Dinitrogen in an ansa-Zirconocene Complex.
Hanna, T. E.; Keresztes, I.; Lobkovsky, E.; Chirik, P. J. Inorg. Chem. 2007, 46, 1675-1683.
41) Nitrogen-Carbon Bond Formation from N2 and CO2 Promoted by a Hafnocene Dinitrogen Complex Yields a Substituted Hydrazine.
40) Dinitrogen functionalization with bis(cyclopentadienyl) complexes of zirconium and hafnium.
Chirik, P. J. Dalton Transactions 2007, 16.
39) Carbon-Oxygen Bond Cleavage with 9,5-Bis(indenyl)zirconium Sandwich Complexes.
38) An FeVI Nitride: There Is Plenty of Room at the Top!
Chirik, P. J. Angew. Chem. Int. Ed. 2006, 45, 6956.
37) Electronic Structure of Bis(imino)pyridine Iron Dichloride, Monochloride, and Neutral Ligand Complexes: A Combined Structural, Spectroscopic, and Computational Study.
36) Iron-Catalyzed [2 + 2] Cycloaddition of ,-Dienes: The Importance of Redox-Active Supporting Ligands.
Bouwkamp, M. W.; Bowman, A. C.; Lobkovsky, E.; Chirik, P. J. J. Am. Chem. Soc. 2006, 128, 13340.
35) Bis(diisopropylphosphino)pyridine Iron Dicarbonyl, Dihydride, and Silyl Hydride Complexes.
Trovitch, R; Lobkovsky, E.; Chirik, P. J. Inorg. Chem. 2006, 45, 7252.
34) Arene Coordination in Bis(imino)pyridine Iron Complexes: Identification of Catalyst Deactivation Pathways in Iron-Catalyzed Hydrogenation and Hydrosilation.
33) N-C Bond Formation Promoted by a Hafnocene Dinitrogen Complex: Comparison of Zirconium and Hafnium Congeners.
32) Mono(dinitrogen) and Carbon Monoxide Adducts of Bis(cyclopentadienyl) Titanium Sandwiches
Hanna, T. E.; Lobkovsky, E.; Chirik, P. J. J. Am. Chem. Soc. 2006, 128, 6018.
31) Synthesis of Bis(indenyl)zirconium Dihydrides and Subsequent Rearrangement to h5,h3-4,5-Dihydroindenediyl Ligands: Evidence for Intermediates during the Hydrogenation to Tetrahydroindenyl Derivatives
Bradley, C. A.; Lobkovsky, E.; Keresztes, I.; Chirik, P. J. J. Am. Chem. Soc. 2006, 128, 6454.
30) The Synthesis and Hydrogenation of Bis(imino)pyridine Iron Imides
Bart, S. C.; Lobkovsky, E.; Bill, E.; Chirik, P. J. J. Am. Chem. Soc. 2006, 128, 5302.
29) The "Indenyl Effect" in Zirconocene Dihydride Chemistry
Bradley, C. A.; Keresztez, I.; Lobkovsky, E.; Chirik, P. J. Organometallics 2006, 25, 2080.
28) Carbon-Hydrogen Bond Activation with a Cyclometalated Zirconocene Hydride: Mechanistic Differences between Arene and Alkane Reductive Elimination
Bernskoetter, W. H.; Pool, J. A.; Lobkovsky, E.; Chirik, P. J. Organometallics 2006, 25, 1092.
27) N2 Hydrogenation Promoted by a Side-On Bound Hafnocene Dinitrogen Complex
Bernskoetter, W. H.; Olmos, A. V.; Lobkovsky, E.; Chirik, P. J. Organometallics 2006, 25, 1021.
26) Bis(imino)pyridine Ligand Deprotonation Promoted by a Transient Iron Amide
Bouwkamp, M. W.; Lobkovsky, E.; Chirik, P. J. Inorg. Chem., 45, 2.
25) Ancillary Ligand Effects on C-H Bond Activation Reactions Promoted by b-Diiminate Iridium Complexes
Bernskoetter, W. H.; Lobkovsky, E.; Chirik, P. J. Organometallics 2005, 24, 6205.
24) Low-Valent a-Diimine Iron Complexes for Catalytic Olefin Hydrogenation
Bart, S. C.; Hawrelak, E. J.; Lobkovsky, E.; Chirik, P. J. Organometallics 2005, 24, 5518.
23) Kinetics and Mechanism of N2 Hydrogenation in Bis(cyclopentadienyl) Zirconium Complexes and Dinitrogen Functionalization by 1,2-Addition of a Saturated C-H Bond
Bernskoetter, W. H.; Lobkovsky, E.; Chirik, P. J. J. Am. Chem. Soc. 2005, 127, 14051.
22) C-H Bond Activation Reactions with Ligand Adducts of a b-Diiminate Iridium Dihydride
Bernskoetter, W. H.; Lobkovsky, E.; Chirik, P. J. Organometallics 2005, 24, 4367.
21) Ligand-Induced Haptotropic Rearrangements in Bis(indenyl)zirconium Sandwich Complexes
Bradley, C. A.; Lobkovsky, E.; Keresztes, I.; Chirik P. J. J. Am. Chem. Soc. 2005, 127, 10291.
20) Bis(imino)pyridine Iron(II) Alkyl Cations for Olefin Polymerization
Bouwkamp, M. W.; Lobkovsky, E.; Chirik, P. J. J. Am. Chem. Soc. 2005, 127, 9660.
19) Square Planar Bis(imino)pyridine Iron Halide and Alkyl Complexes
18) Dinitrogen Functionalization with Terminal Alkynes, Amines, and Hydrazines Promoted by [(h5-C5Me4H)2Zr]2(m2,h2,h2-N2): Observation of Side-On and End-On Diazenido Complexes in the Reduction of N2 to Hydrazine
Bernskoetter, W. H.; Pool, J. A.; Lobkovsky, E.; Chirik, P. J. J. Am. Chem. Soc. 2005, 127, 7901.
17) Square Planar vs Tetrahedral Geometry in Four Coordinate Iron(II) Complexes
16) The importance of cyclopentadienyl substituent effects in group 4 metallocene dinitrogen chemistry
Pool, J. A.; Chirik, P. J. Can. J. Chem. 2005, 83, 286.
15) Zirconium Sandwich Complexes with h9 Indenyl Ligands: Well-Defined Precursors for Zirconocene-Mediated Coupling Reactions
14) Dinitrogen Activation by Titanium Sandwich Complexes
Hanna, T. E.; Lobkovsky, E.; Chirik, P. J. J. Am. Chem. Soc. 2004, 126, 14688.
13) On the Origin of Dinitrogen Hydrogenation Promoted by [(h5-C5Me4H)2Zr]2(m2,h2,h2-N2)
Pool, J. A.; Bernskoetter, W. H.; Chirik, P. J. J. Am. Chem. Soc. 2004, 126, 14326
12) Preparation and Molecular and Electronic Structures of Iron(0) Dinitrogen and Silane Complexes and Their Application to Catalytic Hydrogenation and Hydrosilation
Bart, S. C.; Lobkovsky, E.; Chirik, P. J. J. Am. Chem. Soc. 2004 126, 13794.
11) Synthesis and Characterization of Zirconium and Iron Complexes Containing Substituted Indenyl Ligands: Evaluation of Steric and Electronic Parameters
10) 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
9) Synthesis of a b-Diiminate Iridium Tetrahydride for Arene C-H Bond Activation
Bernskoetter, W. H.; Lobkovsky, E.; Chirik, P. J. Chem. Commun. 2004, 764.
8) Hydrogenation and Cleavage of Dinitrogen to Ammonia with a Zirconium Complex
Pool, J. A.; Lobkovsky, E.; Chirik, P. J. Nature 2004, 427, 527.
7) Synthesis, Reactivity, and Solid State Structures of Four-coordinate Iron(II) and Manganese(II) Alkyl Complexes
6) Synthesis of a Zirconium Sandwich Complex and Crystallographic Characterization of its Adduct with Tetrahydrofuran
Bradley, C. A.; Lobkovsky, E.; Chirik, P. J. J. Am. Chem. Soc. 2003, 125, 8110.
5) 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
Pool, J. A.; Lobkovsky, E.; Chirik, P. J. Organometallics 2003, 22, 2797.
4) Cyclopentadienyl substituent effects on reductive elimination reactions in group 4 metallocenes: kinetics, mechanism and application to dinitrogen activation
Pool, J. A.; Lobkovsky, E.; Chirik, P. J. J. Am. Chem. Soc. 2003, 125, 2241.
3) Selective, catalytic carbon-carbon bond activation and functionalization promoted by late transition metal catalysts
Bart, S. C.; Chirik, P. J. J. Am. Chem. Soc. 2003, 125, 886.
2) Functionalization of elemental phosphorus with [(h5-C5Me5)(h5-C5H5-t-Bu)ZrH2]2
Pool, J. A.; Lobkovsky, E.; Chirik, P. J. Angew. Chem. Int. Ed. 2002, 41, 3463.
1) A convenient method for the preparation of zirconocene hydrido chloride, isobutyl hydride and dihydride complexes with tert-butyl lithium
Pool, J. A.; Bradley, C. A.; Chirik, P. J. Organometallics 2002, 21, 1271.
Chirik Group Publications
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