All Outputs (5)

Identity of the Active Site in Gold Nanoparticle-Catalyzed Sonogashira Coupling of Phenylacetylene and Iodobenzene (2010)
Journal Article
Beaumont, S. K., Kyriakou, G., & Lambert, R. M. (2010). Identity of the Active Site in Gold Nanoparticle-Catalyzed Sonogashira Coupling of Phenylacetylene and Iodobenzene. Journal of the American Chemical Society, 132(35), 12246-12248. https://doi.org/10.1021/ja1063179

XPS, TEM, and reaction studies were used to examine the catalytic behavior of gold species deposited on lanthana toward the cross-coupling of phenylacetylene and odobenzene. Atomically dispersed AuI and AuIII were catalytically inert, whereas metalli... Read More about Identity of the Active Site in Gold Nanoparticle-Catalyzed Sonogashira Coupling of Phenylacetylene and Iodobenzene.

Influence of Adsorption Geometry in the Heterogeneous Enantioselective Catalytic Hydrogenation of a Prototypical Enone (2010)
Journal Article
Beaumont, S. K., Kyriakou, G., Watson, D. J., Vaughan, O. P., Papageorgiou, A. C., & Lambert, R. M. (2010). Influence of Adsorption Geometry in the Heterogeneous Enantioselective Catalytic Hydrogenation of a Prototypical Enone. Journal of Physical Chemistry C, 114(35), 15075-15077. https://doi.org/10.1021/jp105960w

Asymmetric catalysis is of paramount importance in organic synthesis and, in current practice, is achieved by means of homogeneous catalysts. The ability to catalyze such reactions heterogeneously would have a major impact both in the research labora... Read More about Influence of Adsorption Geometry in the Heterogeneous Enantioselective Catalytic Hydrogenation of a Prototypical Enone.

Synthesis, Characterization, and Surface Tethering of Sulfide-Functionalized Ti₁₆-oxo-alkoxy Cages (2010)
Journal Article
Eslava, S., Papageorgiou, A. C., Beaumont, S. K., Kyriakou, G., Wright, D. S., & Lambert, R. M. (2010). Synthesis, Characterization, and Surface Tethering of Sulfide-Functionalized Ti₁₆-oxo-alkoxy Cages. Chemistry of Materials, 22(18), 5174-5178. https://doi.org/10.1021/cm101039k

The parent cage [Ti16O16(OEt)32] readily undergoes ligand exchange with a range of primary alcohols to yield species of the type [Ti16O16(OEt)32−x(OR′)x], with R′ = Me, n-Pr, and n-Bu with x of up to 8. Attempted ligand exchange using the thiol [HO(C... Read More about Synthesis, Characterization, and Surface Tethering of Sulfide-Functionalized Ti₁₆-oxo-alkoxy Cages.

Sonogashira Coupling Catalyzed by Gold Nanoparticles: Does Homogeneous or Heterogeneous Catalysis Dominate? (2010)
Journal Article
Kyriakou, G., Beaumont, S. K., Humphrey, S. M., Antonetti, C., & Lambert, R. M. (2010). Sonogashira Coupling Catalyzed by Gold Nanoparticles: Does Homogeneous or Heterogeneous Catalysis Dominate?. ChemCatChem, 2(11), 1444-1449. https://doi.org/10.1002/cctc.201000154

A variety of measurements indicate that Au-nanoparticle catalyzed Sonogashira coupling of iodobenzene and phenylacetylene is predominantly a heterogeneous process. Large gold particles are much more selective than small ones, consistent with this vie... Read More about Sonogashira Coupling Catalyzed by Gold Nanoparticles: Does Homogeneous or Heterogeneous Catalysis Dominate?.

Sonogashira Coupling on an Extended Gold Surface in Vacuo: Reaction of Phenylacetylene with Iodobenzene on Au(111) (2010)
Journal Article
Kanuru, V. K., Kyriakou, G., Beaumont, S. K., Papageorgiou, A. C., Watson, D. J., & Lambert, R. M. (2010). Sonogashira Coupling on an Extended Gold Surface in Vacuo: Reaction of Phenylacetylene with Iodobenzene on Au(111). Journal of the American Chemical Society, 132(23), 8081-8086. https://doi.org/10.1021/ja1011542

Temperature-programmed reaction measurements supported by scanning tunneling microscopy have shown that phenylacetylene and iodobenzene react on smooth Au(111) under vacuum conditions to yield biphenyl and diphenyldiacetylene, the result of homocoupl... Read More about Sonogashira Coupling on an Extended Gold Surface in Vacuo: Reaction of Phenylacetylene with Iodobenzene on Au(111).