Publications

72. Trew, E. L.; Szucs, D.; Boeré, R. T.; Hayes, P. G.* “Dichloro[2,5-bis(diisopropylphosphino-κN-(4,6-dimethylpyrimidine-κN))pyrrole-κN]yttrium(III)•toluene” Molbank, 2025, 2025, M2066.
71. Hayes, P. G.* “A Tribute to the Life and Legacy of Prof. Stephan A. Westcott” Can. J. Chem. 2025, ASAP. (Special Issue Dedicated to Stephen A. Westcott)
70. Hsiang, S.-J.; Hayes, P. G. “Rhodium-mediated Assembly of New Heterocycles: From Borylenes to Oxaboroles” Angew, Chem. Int. Ed. 2025, 64, e202421302. (Selected as a “Hot Paper”)
69. Knott, J. P.; Hsiang, S.-J.; Hayes, P. G. “Circumventing Cyclometalation in Alkylamido Lutetium Complexes via Ligand Design” Dalton Trans. 2025, 54, 6261-6273.
68. Hsiang, S.-J.; Hayes, P. G. “Synthesis and Reaction Chemistry of a Rhodium Silylyne Complex” Can. J. Chem. ASAP, 2025. (Invited Submission in Special Issue Dedicated to Stephen A. Westcott)
67. Hsiang, S.-J.; Hayes, P. G. “Rhodium-mediated Dehydrogenation of Hydroboranes and Group 14 Compounds” Chem – Eur. J. 2024, 30, e2023029.  FEATURED ON INSIDE COVER OF JOURNAL. (Invited Submission in Special Collection on Chemistry of the p-Block Elements).
66. Dickie, T. K. K.; Hayes, P. G. “Thorium(IV) Diphosphazide Complexes: CO2 Insertion into Th-C and Th-N Bonds” Organometallics 2022, 41, 278-283.
65. Drescher, S. L.; Forfar, C. P.; Boeré, R. T.; Hayes, P. G. "X-Ray Crystal Structure of [L2Ag3]+[OTf]– •5C6D6: A monoanionic bisphosphinimine ligand supported trisilver complex” Acta Crystallogr., Sect. E: Struct. Rep. Online 2021, 77, 1025-1028.
64. Chisholm, D. T.; Hayes, P. G. "Synthesis and Characterization of Group 13 Dichloride (M = Ga, In), Dimethyl (M = Al) and Cationic Methyl Aluminum Complexes Supported by Monoanionic NNN-Pincer Ligands" New J. Chem. 2021, 45, 15043-15052.(Invited Manuscript for Special Issue Dedicated to Prof. Todd Marder)
63.

Hsiang, S.-J.; Hayes, P. G. “The Coordination Chemistry of Yttrium Complexes Supported by Multidentate Nitrogen Ancillary Ligands” In Comprehensive Coordination Chemistry III; Constable, E. C.; Parkin, G.; Que Jr., L., Eds., Vol. 4, Elsevier, 2021, 40-72. (Invited Submission)
62.

Webb, D. J.; Hayes, P. G. “Coordination Chemistry of Phosphinimine Containing Ligands” Comprehensive Coordination Chemistry III; Constable, E. C.; Parkin, G.; Que Jr., L., Eds., Vol. 1, Elsevier, 2021, 131-157. (Invited Submission)
61. MacNeil, C. S.; Hsiang, S.-J.; Hayes, P. G. “Reversible Dehydrogenation of Primary Aryl Boranes” Chem. Commun. 2020, 56, 12323-12326. FEATURED ON FRONT COVER OF JOURNAL.
60. Dickie, T. K. K.; Aborawi, A. A.; Hayes, P. G. “A Diphosphazide-supported Trialkyl Thorium(IV) Complex” Organometallics 2020, 39, 2047-2052.
59. Dickie, T. K. K.; MacNeil, C. S.; Hayes, P. G. “Consecutive N2 Loss from a Uranium Diphosphazide Complex” Dalton Trans. 2020, 49, 578-582. FEATURED ON BACK COVER OF JOURNAL.
58. MacNeil, C. S.; Ogweno, A. O.; Ojwach, S. O.; Hayes, P. G. “Dichlorobis[2-pyridin-2-yl-kN)-1H-benzimidazole-kN3)nickel(II) monohydrate” IUCrData 2020, 5, x200040.
57. MacNeil, C. S.; Glynn, K. E.; Hayes, P. G. “An H-Substituted Rhodium Silylene Complex” Chem – Eur. J. 2019, 25, 8203-8207.  FEATURED ON JOURNAL FRONTISPIECE. (Selected as a “Hot Paper”)
56. Webb, D. J.; Hayes, P. G. “Zinc Complexes of Phosphinimine-NEN-Pincer Ligands (E = O,S)” Inorg. Synth. 2019, In Press. (Invited Submission)
55. MacNeil, C. S.; Glynn, K. E.; Hayes, P. G.“Facile Activation and Deoxygenative Metathesis of CO” Organometallics 2018, 37, 3248-3252.
54.

MacNeil, C. S.; Dickie, T. K. K.; Hayes, P. G. “Actinide Pincer Chemistry: A New Frontier” In The Chemistry of Pincer Compounds, Vol 2; Morales-Morales, D., Ed.; Elsevier: Cambridge, 2017, 133-172. (Invited Submission)
53.

Knott, J. P.; Hänninen, M. M.; Rautianinen, J. M.; Tuononen, H. M.; Hayes, P. G.“Insights into the Decomposition Pathway of a Lutetium Alkylamido Complex via Intramolecular C–H Bond Activation” J. Organomet. Chem. 2017, 845, 135-143. (Invited Submission in Special Issue Dedicated to Gerard van Koten)
52. MacNeil, C. S.; Johnson, K. R. D.; Hayes, P. G.; Boeré, R. T. “Crystal structure of β-diketiminate-stabilized magnesium(II) complexes: structural study of iodo-bridged dimers” Acta Crystallogr., Sect. E: Struct. Rep. Online 2016, E72, 1754-1756.
51. Leshinski, S. E.; Wheaton, C. A.; Sun. H.; Roering, A. J.; Tanski, J. M.; Fox, D. J.; Hayes, P. G.; Waterman, R. "Triamidoamine-Supported Zirconium: Hydrogen Activation, Lewis Acidity and rac-Lactide Polymerization" RSC Adv. 2016, 6, 70581-70585.
50. Johnson, K. R. D.; Kamenz, B. L.; Hayes, P. G. "Ligand Influence on Intramolecular Cyclometalation in Bis(phosphinimine) Rare Earth Alkyl Complexes" Can. J. Chem. 2016, 94, 330-341. (Invited Submission to "University of Calgary 50th Anniversary Special Issue Special Issue)
49. Johnson, K. R. D.; Hayes, P. G. "Synthesis, Structure and Reactivity of Scandium Bis(trimethylsilyl)amido Derivatives" Polyhedron 2016, 108, 43-49. (Invited Manuscript for "Modern Canadian Inorganic Chemistry" Special Issue)
48. Hänninen, M. M.; Zamora, M. T.; MacNeil, C. S.; Knott, J. P.; Hayes, P. G. "Elucidation of the Resting State of a Rhodium NNN-Pincer Hydrogenation Catalyst that Features A Remarkably Upfield Hydride 1H NMR Chemical Shift" Chem. Commun. 2016, 52, 586-589.
47. Hänninen, M. M.; Zamora, M. T.; Hayes, P. G. "Rare Earth Pincer Complexes: Synthesis, Reacton Chemistry and Catalysis" In Topics in Organometallic Chemistry; Gossage, R. A.; van Koten, G., Ed.; Springer-Verlag: Berlin, 2016, 54, 93-178. (Invited Submission)
46. Zamora, M. T.; Zahir, S.; Johnson, K. R. D.; Barnson, C. J.; Wheaton, C. A.; Hänninen, M. M.; Hayes, P. G. "Synthesis and Characterization of Zinc Complexes Supported by Bulky Bisphosphinimine Ligands Designed to Inihibit Intramolecular Transesterification During Lactone Polymerization" Aust. J. Chem. 2015, 68, 373-384. (Invited Manuscript for Special Issue Dedicated to Prof. Richard F. Langler)
45. Johnson, K. R. D.; Hayes, P. G. "Yttrium and Scandium Complexes of a Bulky Bis(phosphinimine)carbazole Ligand" Inorg. Chim. Acta 2014, 422, 209-217. (Invited Manuscript in "Protagonists in Chemistry" Special Issue Dedicated to Prof. T. Don Tilley)
44. Johnson, K. R. D.; Kamenz, B. L.; Hayes, P. G. "Bis(pyrazolyl)carbazole as a Versatile Ligand for Supporting Lutetium Alkyl and Hydride Complexes" Organometallics 2014, 33, 3005-3011.
43. Zamora, M. T.; Johnson, K. R. D.; Hayes, P. G. "Differences in the cyclometalation reactivity of bisphosphinimine-supported organo-rare earth complexes" Dalton Trans. 2014, 43, 10739-10750. (Invited Manuscript in "The Carbon-Metal Bond and C-H Metalation" Special Issue Dedicated to Prof. William C. Kaska for his 80th birthday)
42. Johnson, K. R. D.; Hayes, P. G. "A cascade reaction: ring-opening insertion of dioxaphospholane into lutetium alkyl bonds" Dalton Trans. 2014, 43, 2448-2457.
41. Ritch, J. S.; Julienne, D.; Rybchynski, S. R.; Brockman, K. S.; Johnson, K. R. D.; Hayes, P. G. "Secondary diphosphines and diphosphido ligands: synthesis, characterisation and group 1 coordination compounds" Dalton Trans. 2014, 43, 267-276.
40. Hayes, P. G.; Xu, Z.; Beddie, C.; Keith, J. M.; Hall, M. B.; Tilley, T. D. "The Osmium-Silicon Triple Bond: Synthesis, Characterization and Reactivity of an Osmium Silylyne Complex" J. Am. Chem. Soc. 2013, 135, 11780-11783.
39. Johnson, K. R. D.; Hayes, P. G. "Organolutetium Mediated Dearomatization and Functionalization of Pyrimidine Rings" Organometallics. 2013, 32, 4046-4049.
38. Johnson, K. R. D.; Hayes, P. G. "Cyclometalative C-H Bond Activation in Rare Earth and Actinide Metal Complexes" Chem. Soc. Rev. 2013, 42, 1947-1960. (Invited Submission)
37. Johnson, K. R. D.; Hannon, M. A.; Ritch, J. S.; Hayes, P. G. "Thermally stable rare earth dialkyl complexes supported by a novel bis(phosphinimine)pyrrole ligand" Dalton Trans. 2012, 41, 7873-7875. (Invited Manuscript to be included in the "New Talent Americas" Special Issue)
36. Wheaton, C. A.; Hayes, P. G. "Electron Deficient Zinc Complexes: Enhanced Lactide Polymerization Activity Achieved Through Rational Ligand Design" J. Organomet. Chem. 2012, 704, 65-69.
35. Sun, H.; Ritch, J. S.; Hayes, P. G. "Zinc Mediated Ring-Opening Polymerisation of rac-Lactide Featuring Chiral Neutral Supporting Ligands" Dalton Trans. 2012, 41, 3701-3713.
34. Wheaton, C. A.; Hayes, P. G. "Exploring the Versatility of a Bis(Phosphinimine) Pincer Ligand: Effect of Sterics on Structure and Lactide Polymerization Activity of Cationic Zinc Complexes" Catal. Sci. Technol. 2012, 2, 125-138. (Invited Submission)
33. Wheaton, C. A.; Hayes, P. G. "A Unique Approach to Catalyst Design for Coordination-Insertion Polymerization of Lactones: Development of Thermally Stable, Well-Defined Cationic Zinc and Magnesium Complexes" Comments Inorg. Chem. 2011, 32, 127-162. (Invited Submission)
32. Wheaton, C. A.; Ireland, B. J.; Hayes, P. G. "Synthesis and Structure of ZnCl2 and Zn(C6F5)2 Complexes of a Phosphinimine Ligand" Z. Anorg. Allg. Chem. 2011, 637, 2111-2119.
31. Sun, H.; Ritch, J. S.; Hayes, P. G. "Toward Stereoselective Lactide Polymerization Catalysts: Cationic Zinc Complexes Supported by a Chiral Phosphinimine Scaffold" Inorg. Chem. 2011, 50, 8063-8072.
30. Lauterwasser, F.; Hayes, P. G.; Piers, W. E.; Schafer, L. L. Bräse, S. "Highly Active and Diastereoselective N,O- and N,N-Yttrium Complexes for Intramolecular Hydroamination" Adv. Synth. Catal. 2011, 353, 1384-1390.
29. Johnson, K. R. D.; Hayes, P. G. "Kinetic and Mechanistic Investigation of Metallacycle Ring Opening in an Ortho-Metalated Lutetium Aryl Complex" Organometallics 2011, 30, 58-67.
28. Wheaton, C. A.; Hayes, P. G. "Cationic Zinc Complexes: A New Class of Catalyst for Living Lactide Polymerization at Ambient Temperature" Chem. Commun. 2010, 46, 8404-8406.
27. Johnson, K. R. D.; Côté, A. P.; Hayes, P. G. "Four-Coordinate Erbium Organometallic and Coordination Complexes: Synthesis and Structure" J. Organomet. Chem. 2010, 695, 2747-2755. (Invited Submission in Special Issue Dedicated to Herbert Schumann)
26. Borisov, A. S.; Hazendonk, P.; Hayes, P. G. "Solid-State Nuclear Magnetic Resonance Spectroscopy: A Review of Modern Techniques and Applications for Inorganic Polymers" J. Inorg. Organomet. Polym. Mater. 2010, 20, 183-202.
25. Wheaton, C. A.; Hayes, P. G. "Cationic organozinc complexes of a bis(phosphinimine) pincer ligand: synthesis, structural and polymerization studies" Dalton Trans. 2010, 39, 3861-3869.
24. Ireland, B. J.; Wheaton, C. A.; Hayes, P. G. "Cationic Organomagnesium Complexes as Highly Active Initiators for the Ring Opening Polymerization of ε-Caprolactone" Organometallics 2010, 29, 1079-1084.
23. Borisov, A. S.; Hazendonk, P.; Hayes, P. G. "31P MAS NMR Spectroscopy of Hexachlorocyclotriphosphazene at Different Stages During Thermal Ring-Opening Polymerization" J. Inorg. Organomet. Polym. Mater. 2010, 20, 395-398.
22. Hayes, P. G.; Piers, W. E. "Scandium Trichloride Tris(tetrahydrofuran) and β-Diketiminato Supported Scandium Chloride Complexes" Inorg. Synth. 2010, 35, 20-24. (Invited Submission)
21. Debashis A.; Mindiola D. J.; Checked by: Johnson, K. R. D.; Hayes, P. G.; Zuno-Cruz, F. J.; Cabrera, G. S. "β-Diketiminate Supported Titanium and Vanadium Dichloride Complexes" Inorg. Synth. 2010, 35, 25-30.
20. Johnson, K. R. D.; Hayes, P. G. "Synthesis and Reactivity of of Dialkyl Lutetium Complexes Supported by a Novel Bis(phosphinimine)carbazole Pincer Ligand" Organometallics 2009, 28, 6352-6361.
19. Hayes, P. G.; Waterman R; Glaser, P.B.; Tilley, T. D. "Synthesis, Structure and Reactivity of Neutral Hydrogen-Substituted Ruthenium Silylene and Germylene Complexes" Organometallics 2009, 28, 5082-5089.
18. Hayes, P. G.; Gribble, C. W.; Waterman R; Tilley, T. D. "A Hydrogen-Substituted Osmium Stannylene Complex: Isomerization to a Metallostannylene Complex via an unusual α-Migration From Tin to Osmium" J. Am. Chem. Soc. 2009, 131, 4606-4607.
17. Wheaton, C. A.; Hayes, P. G.; Ireland, B. J. "Complexes of Mg, Ca and Zn as homogeneous catalysts for lactide polymerization" Dalton Trans. 2009, 4832-4846. (FEATURED ON COVER OF ISSUE - Invited Submission)
16. Wheaton, C. A.; Ireland, B. J.; Hayes, P. G. "Activated Zinc Complexes Supported by a Neutral Phosphinimine-Containing Ligand: Synthesis and Efficacy for the Polymerization of Lactide" Organometallics 2009, 28, 1282-1285.
15. Borisov, A. S.; Hazendonk, P.; Hayes, P. G. "A Morphological Study of Poly[bis(trifluoroethoxy)phosphazene] Using High Resolution Solid-State 13C NMR Spectroscopy" J. Inorg. Organomet. Polym. Mater. 2008, 18, 163-174. (Invited Submission in Special Issue Dedicated to Didier Astruc)
14. Conroy, K. D. Hayes, P. G.; Piers, W. E.; Parvez, M. "Accelerated Ligand Metallation in a β-Diketiminato Scandium Dimethyl Complex Activated with Bis(pentafluorophenyl)borane" Organometallics 2007, 26, 4464-4470.
13. Waterman, R.; Hayes, P. G.; Tilley, T. D. "Synthetic Development and Chemical Reactivity of Transition-Metal Silylene Complexes" Acc. Chem. Res. 2007, 40, 712-719. (Invited Submission)
12. Hayes, P. G.; Piers, W. E.; Parvez, M. "Arene Complexes of β-Diketiminato Supported Organoscandium Cations: Mechanism of Arene Exchange and Alkyne Insertion in Solvent Separated Ion Pairs" Chem. Eur. J. 2007, 13, 2632-2640.
11. Hayes, P. G.; Beddie, C.; Hall, M. B.; Waterman, R. Tilley, T. D. "H-Substituted Osmium Silylene Complexes: Effect of Charge Localization on Catalytic Hydrosilation" J. Am. Chem. Soc. 2006, 128, 428-429.
10. Hayes, P. G.; Piers, W. E.; Parvez, M. "Synthesis, Structure and Ion Pair Dynamics of β-Diketiminato-Supported Organoscandium Contact Ion Pairs" Organometallics 2005, 24, 1173-1183.
9. Lauterwasser, F.; Hayes, P. G.; Bräse, S.; Piers, W. E.; Schafer, L. L. "Scandium Catalyzed Intramolecular Hydroamination. Development of a Highly Active Cationic Catalyst" Organometallics 2004, 23, 2234-2237.
8. Hayes, P. G.; Piers, W. E.; Parvez, M. "Cationic Organoscandium β-Diketiminato Chemistry: Arene Exchange in Solvent Separated Ion Pairs" J. Am. Chem. Soc. 2003, 125, 5622-5623.
7. Hayes, P. G.; Welch, G. C.; Emslie, D. J. H.; Piers, W. E.; Noack, C.; Parvez, M. "A New Chelating Anilido-Imine Donor for Stabilization of Organoyttrium Cations" Organometallics 2003, 22, 1577-1579.
6. Cook, K. S.; Piers, W. E.; Hayes, P. G.; Parvez, M. "Reactions of a Borataalkene Ligand at Tantalocene Centers: Isonitrile Insertion into the B-C Bond of the [CH2B(C6F5)2] Ligand via the η1 Bonding Mode" Organometallics 2002, 21, 2422-2425.
5. Hayes, P. G.; Piers, W. E.; McDonald, R. "Cationic Scandium Methyl Complexes Supported by a β-Diketiminato ("Nacnac") Ligand Framework" J. Am. Chem. Soc. 2002, 124, 2132-2133.
4. Hayes, P. G.; Piers, W. E.; Lee, L. W. M.; Knight, L. K.; Parvez, M.; Elsegood, M. R. J.; Clegg, W. "Synthesis, Characterization and Thermal Stability of a New Family of Organoscandium Complexes" Organometallics 2001, 20, 2533-2544.
3. Vogels, C. M.; O'Connor, P. E.; Phillips, T. E.; Watson, K. J.; Shaver, M. P.; Hayes, P. G.; Westcott, S. A. "Rhodium Catalyzed Hydroborations of Allylamines and Allylimines" Can. J. Chem. 2001, 79, 1898-1905.
2. Hayes, P. G.; Vogels, C. M.; Stringer, S. A. M.; Westcott, S. A. "Alkenyl Pyridine and Alkenyl Amine Complexes of Palladium" Trans. Met. Chem. 2001, 26, 261-266.
1. Vogels, C. M.; Hayes, P. G.; Shaver, M. P.; Westcott, S. A. "Metal catalyzed addition of B-H and N-H bonds to aminopropyl vinyl ethers" Chem. Commun. 2000, 51-52.

 

Patents

 
4. Webb, D. J; Hayes, P. G.; Kovalchuk, I. “Method of Synthesizing Cannabinol“ US Pat. Appl., 106,568-0, October 9, 2019.
3. Webb, D. J; Hayes, P. G.; Kovalchuk, I. “Synthesis of (–)-Trans-D9-Tetrahydrocannabinol from Cannabidiol“ US Pat. Appl., No. 62/806,464, February 15, 2019.
2.

Hayes, P. G.; Wheaton, C. A. “Catalysts for the Polymerization of Cyclic Esters” US Pat., No. US 8,193,112 B2.
June 5, 2012.
1.

Hayes, P. G.; Wheaton, C. A. “Catalysts for the Polymerization of Cyclic Esters” Can Pat., No.2,644,764,
November 2009.


 

Ph.D. Thesis

Hayes, P. G. "Synthesis, Structure and Reactivity of β-Diketiminato Supported Organoscandium Cations" 2004.

The following funding agencies are acknowledged for generous support of our research (PI grants and student scholarships):

NSERC U of L Alberta Innovates Technology Futures
CFI CSEE GCC