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Dive into the research topics where William J. Sommer is active.

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Featured researches published by William J. Sommer.


The Chemistry of Pincer Compounds | 2007

Stability of supported pincer complex-based catalysts in Heck catalysis

William J. Sommer; Christopher W. Jones; Marcus Weck

Several studies question the stability of palladated pincer complexes under Heck catalysis conditions. Through a series of poisoning tests, kinetic and spectroscopic studies, and computational experiments, these studies prove that any supported as well as small molecule Pd-pincer complexes decompose during the Heck catalysis. Furthermore, no experimental proof could be obtained with regard to the proposed Pd(II)/Pd(IV) catalytic cycle, which is a requirement for the Heck promoted by stable Pd(II) pincer complexes. The decomposition results may be applicable to other Pd-coupling chemistry because they follow similar catalytic cycles. Despite the detailed kinetic and poisoning studies, recent literature still show a plethora of articles that use palladated pincer complexes as catalysts for coupling chemistry where no studies to investigate the stability of the Pd pincer complexes are carried out.


Organometallics | 2003

A Combined Experimental and Theoretical Study Examining the Binding of N-Heterocyclic Carbenes (NHC) to the Cp*RuCl (Cp* = η5-C5Me5) Moiety: Insight into Stereoelectronic Differences between Unsaturated and Saturated NHC Ligands

Anna C. Hillier; William J. Sommer; Ben S. Yong; Jeffrey L. Petersen; Luigi Cavallo; Steven P. Nolan


Advanced Synthesis & Catalysis | 2005

Evidence that SCS pincer Pd(II) complexes are only precatalysts in Heck catalysis and the implications for catalyst recovery and reuse

Kunquan Yu; William J. Sommer; John M. Richardson; Marcus Weck; Christopher W. Jones


Organometallics | 2004

Synthetic and Structural Studies of (NHC)Pd(allyl)Cl Complexes (NHC = N-heterocyclic carbene)

Mihai S. Viciu; Oscar Navarro; Romain F. Germaneau; Roy A. Kelly; William J. Sommer; Nicolas Marion; Edwin D. Stevens; Luigi Cavallo; Steven P. Nolan


Coordination Chemistry Reviews | 2007

Supported N-heterocyclic carbene complexes in catalysis

William J. Sommer; Marcus Weck


Journal of Catalysis | 2004

Silica and polymer-tethered Pd-SCS-pincer complexes: evidence for precatalyst decomposition to form soluble catalytic species in Mizoroki-Heck chemistry

Kunquan Yu; William J. Sommer; Marcus Weck; Christopher W. Jones


Organometallics | 2005

Investigations into the Stability of Tethered Palladium(II) Pincer Complexes during Heck Catalysis

William J. Sommer; Kunquan Yu; John S. Sears; Yaying Ji; Xiaolai Zheng; Robert J. Davis; C. David Sherrill; Christopher W. Jones, ,†,‡ and; Marcus Weck


Advanced Synthesis & Catalysis | 2006

Poly(norbornene)‐Supported N‐Heterocyclic Carbenes as Ligands in Catalysis

William J. Sommer; Marcus Weck


Langmuir | 2007

Facile Functionalization of Gold Nanoparticles via Microwave-Assisted 1,3 Dipolar Cycloaddition

William J. Sommer; Marcus Weck


Advanced Materials | 2005

Cobalt–Carbon Spheres: Pyrolysis of Dicobalthexacarbonyl-Functionalized Poly(p-phenyleneethynylene)s†

Stefan Scholz; Peter J. Leech; Brian C. Englert; William J. Sommer; Marcus Weck; Uwe H. F. Bunz

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Christopher W. Jones

Georgia Institute of Technology

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Kunquan Yu

Georgia Institute of Technology

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Anna C. Hillier

University of New Orleans

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John M. Richardson

Georgia Institute of Technology

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Roy A. Kelly

University of New Orleans

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Xiaolai Zheng

Georgia Institute of Technology

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Luigi Cavallo

King Abdullah University of Science and Technology

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Brian C. Englert

Georgia Institute of Technology

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