Fekl, Ulrich W
Contact Information
3359 Mississauga Road North
Mississauga , Ontario
L5L 1C6
Research
We are extending the usefulness of transition metal systems for organic transformations and are, at the same time, investigating fundamental properties of transition metal complexes. One example is the activation of unreactive C-H bonds in hydrocarbons and their conversion into useful functionalities. Another field of study is the the reactivity of sulfur-containing metal centers with unsaturated molecules, a field of great promise for industrial olefin chemistry and also the development of Lewis-acids to catalyze organic transformations.
Publications
• Neilson Nguyen, Daniel J. Harrison, Alan J. Lough and Ulrich Fekl
"Molybdenum Dithiolene Complexes as Structural Models for the Active Sites of Molybdenum(IV) Sulfide Hydrodesulfurization Catalysts"
Eur. J. Inorg. Chem. 2010, 3577-3585.
• Antonio G. De Crisci, Gordon K. Hamer and Ulrich Fekl
"The First Aryldiazenido Complex of Platinum(IV): An NMR-Study on the Addition of Aryldiazonium to Platinum(II)"
J. Coord. Chem. 2010, 63, 2928-2938.
This article has been selected by the editor (Jim Atwood) to be one of the featured articles
• Antonio G. De Crisci, Vincent T. Annibale, Gordon K. Hamer,
Alan J. Lough and Ulrich Fekl
"Characterization of a Rhodium-Sparteine Complex, [((―)-Sparteine)Rh(η4-COD)]+: Crystal Structure and DNMR/DFT Studies on COD-Rotation Dynamics"
Dalton Trans. 2010, 39, 2888-2902.
• Daniel J. Harrison and Ulrich Fekl
"Catalytic Production of Sulfur Heterocycles (Dihydrobenzodithiins):
A New Application of Ligand-Based Alkene Reactivity"
Chem. Commun. 2009, 7572-7574.
• Mitchell J. Kerr , Daniel J. Harrison, Alan J. Lough, and Ulrich Fekl
"Ligand-based Reactivity of a Platinum Bisdithiolene:
Double Diene Addition Yields New C2-Chiral Chelate Ligand"
Inorg. Chem. 2009, 48, 9043-9045.
― This work is featured on the cover of issue 19, vol 48 ―
• Stephanie Hosking, Alan J. Lough and Ulrich Fekl
"Tetraphenylarsonium cis-bis[1,2-bis(trifluoromethyl)ethylene-1,2-dithiolato]-platinate(II)"
Acta Cryst. E 2009, 65, m759-m760.
• Joel A. Tang, Elzbieta Kogut, Danielle Norton, Alan J. Lough,
Bruce R. McGarvey, Ulrich Fekl and Robert W. Schurko
"Impact of Reduction on the Properties of Metal Bisdithiolenes: Multinuclear Solid-State NMR and Structural Studies on Pt(tfd)2 and its Reduced Forms"
J. Phys. Chem. B 2009, 113, 3298-3313.
• Antonio G. De Crisci, Jesse Kleingardner, Alan J. Lough,
Anna Larsen and Ulrich Fekl
"A Weakly Coordinating Anion as a Tripodal ‘Br3’-Ligand for Platinum(IV): Structure of [(closo-CB11H6Br6)PtMe3]"
Can. J. Chem. 2009, 87, 95-102.
― Invited Contribution to a Special Issue dedicated to Richard J. Puddephatt ―
• Daniel J. Harrison, Antonio G. De Crisci, Alan J. Lough,
Mitchell J. Kerr and Ulrich Fekl
"Nickel Dithiolene Chelate Rings in a New Role as 5-Coordinating Ligands: Synthesis, Structural Characterization and Redox Reactivity of an ‘Fe2Ni’ Bis-double-decker"
Inorg. Chem. 2008, 47, 10199-10201.
•Antonio G. De Crisci, Alan J. Lough, Kanwarpal Multani
and Ulrich Fekl
"9,10-Dihydroplatinaanthracenes with Aromatic Diimine Ligands: Syntheses and Spectroscopic and Computational Studies of New Luminescent Materials" Organometallics 2008, 27, 1765-1779.
•Daniel J. Harrison, Alan J. Lough, Neilson Nguyen and Ulrich Fekl
"Push-Pull Molybdenum Trisdithiolenes Allow Rapid Nonconventional
Binding of Ethylene at Sulfur Atoms"
Angew. Chem. Int. Ed. 2007, 46, 7644-7647.
•Vicki Hsieh, Antonio G. De Crisci, Alan J. Lough and Ulrich Fekl
"Lewis-Acidity of Trimethylplatinum(IV) with Labile Oxygen-
Donor Ligands"
Organometallics 2007, 26, 938-944.
•Elzbieta Kogut, Joel A. Tang, Alan J. Lough, Cory M. Widdifield, Robert W.
Schurko and Ulrich Fekl
"Neutral High-Potential Nickel Triad Bisdithiolenes: Structure and Solid- State NMR Properties of Pt[S2C2(CF3)2]2"
Inorg. Chem. 2006, 45, 8850- 8852.
•Daniel J. Harrison, Neilson Nguyen, Alan J. Lough and Ulrich Fekl
"New Insight into Reactions of Ni(S2C2(CF3)2)2 with Simple Alkenes: Alkene Adduct versus Dihydrodithiin Selectivity is Controlled by [Ni(S2C2(CF3)2)2]-Anion"
J. Am. Chem. Soc. 2006, 128, 11026-11027.
•Andreas Hofmann, Rui Ren, Alan Lough and Ulrich Fekl
"Highly substituted cyclohexanes: strong proximity effects influence synthetic access to 1,3,5-tris(bromomethyl)-1,3,5-trialkylcyclohexanes (alkyl = methyl, n-propyl)"
Tetrahedron Lett. 2006, 47, 2607-2610.