Search Results - "Grennberg, H."

A simple method to produce almost perfect graphene on highly oriented pyrolytic graphite by Webb, M.J., Palmgren, P., Pal, P., Karis, O., Grennberg, H.

“…A simple and effective stepwise-method has been developed to remove defects from the top graphene layers of highly orientated pyrolytic graphite. Using a…”
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Phthalocyanine-Sensitized Nanostructured TiO2 Electrodes Prepared by a Novel Anchoring Method by He, Jianjun, Hagfeldt, Anders, Lindquist, Sten-Eric, Grennberg, Helena, Korodi, Ferenc, Sun, Licheng, Åkermark, Björn

“…A novel method for anchoring phthalocyanines substituted with ester groups onto nanostructured TiO2 films is described. Such phthalocyanines did not adsorb on…”
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Metal-free photochemical silylations and transfer hydrogenations of benzenoid hydrocarbons and graphene by Papadakis, Raffaello, Li, Hu, Bergman, Joakim, Lundstedt, Anna, Jorner, Kjell, Ayub, Rabia, Haldar, Soumyajyoti, Jahn, Burkhard O., Denisova, Aleksandra, Zietz, Burkhard, Lindh, Roland, Sanyal, Biplab, Grennberg, Helena, Leifer, Klaus, Ottosson, Henrik

“…The first hydrogenation step of benzene, which is endergonic in the electronic ground state (S 0 ), becomes exergonic in the first triplet state (T 1 ). This…”
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High mobility epitaxial graphene devices via aqueous-ozone processing by Yager, Tom, Webb, Matthew J., Grennberg, Helena, Yakimova, Rositsa, Lara-Avila, Samuel, Kubatkin, Sergey

“…We find that monolayer epitaxial graphene devices exposed to aggressive aqueous-ozone processing and annealing became cleaner from post-fabrication organic…”
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Electropolymerisable bipyridine ruthenium(II) complexes: synthesis, spectroscopic and electrochemical characterisation of 4-((2-thienyl) ethenyl)- and 4,4 ′-di((2-thienyl) ethenyl)-2,2 ′-bipyridine ruthenium complexes by Aranyos, Viviane, Hagfeldt, Anders, Grennberg, Helena, Figgemeier, Egbert

“…Four new ruthenium polypyridyl complexes with mono- or di-((2-thienyl) ethenyl) substituted 4,4 ′-bipyridines have been synthesized and characterized by NMR,…”
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Determination of Absolute Configuration of (π-Allyl)Palladium Complexes by NMR Spectroscopy and Stereoselective Complexation by Gogoll, Adolf, Johansson, Charlotte, Axén, Andreas, Grennberg, Helena

“…The chiral chelating ligand N,N′‐bis(phenylethyl)bispidine (1) forms a rigid cavity which accommodates (π‐allyl)palladium species with high selectivity. In the…”
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New dyes for solar cells based on nanostructured semiconducting metal oxides: Synthesis and characterisation of ruthenium(II) complexes with thiol-substituted ligands by Ohlsson, Judit, Wolpher, Henriette, Hagfeldt, Anders, Grennberg, Helena

“…Five azo-dyes: 4-phenylazo-phenol, 4-phenylazo-benzeneamine, 4-phenylazo-benzenethiol, 4-phenylazo-benzoic acid, and 4-phenylazo-pyridine have been prepared…”
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Mechanism of Palladium-Catalyzed Allylic Acetoxylation of Cyclohexene by Grennberg, Helena, Bäckvall, Jan-E.

“…The “oxypalladation route” or the “(π‐allyl)palladium route”? The mechanism of the quinone‐based palladium‐catalyzed allylic oxidation of olefins to allylic…”
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Mechanism of Apparent .pi.-Allyl Rotation in (.pi.-Allyl)palladium Complexes with Bidentate Nitrogen Ligands by Gogoll, Adolf, Oernebro, Joergen, Grennberg, Helena, Baeckvall, Jan-E

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Computational Studies of Carbon Nanotube-Hydrocarbon Bond Strengths at Nanotube Ends: Effect of Link Heteroatom and Hydrocarbon Structure by Gustavsson, Simon, Rosén, Arne, Grennberg, Helena, Bolton, Kim

“…Semiempirical and density functional electronic structure theory methods were used to study SWNT‐XR bond strengths, where the single‐walled carbon nanotube…”
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Acid-induced transformation of palladium(0)-benzoquinone complexes to palladium(II) and hydroquinone by Grennberg, Helena, Gogoll, Adolf, Baeckvall, Jan E

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(π-Allyl)palladium Complexes with N,N‘-Diphenylbispidinone Derivatives as a New Type of Chelating Nitrogen Ligand:  Complexation Studies, Spectroscopic Properties, and an X-ray Structure of (3,7-Diphenyl-1,5-dimethylbispidinone)[(1,3-η3-propenyl)- palladium] Trifluoromethanesulfonate by Gogoll, Adolf, Grennberg, Helena, Axén, Andreas

“…A series of 3,7-diazabicyclo[3.3.1]nonane (bispidine) derivatives have been synthesized, and their properties as bidentate nitrogen ligands for…”
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Aerobic Oxidations of Conjugated Dienes Using a Catalytic Palladium(II)−Quinone−Heteropolyacid System for Electron Transfer from Organic Substrates to Molecular Oxygen by Bergstad, Katarina, Grennberg, Helena, Bäckvall, Jan-E

“…The heteropolyacid H5PMo10V2O40·34H2O was found to be an efficient oxygen activating agent in palladium-catalyzed reactions. Aerobic 1,4-oxidations of…”
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Multistep electron transfer in palladium-catalyzed aerobic oxidations via a metal macrocycle quinone system by Baeckvall, Jan-E, Hopkins, R. Bruce, Grennberg, Helena, Mader, Mary, Awasthi, Alok K

“…Selective palladium-catalyzed aerobic conditions of olefins and conjugated dienes with the aid of a metal macrocycle-quinone system have been developed. This…”
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Electrochemical and photoelectrochemical investigation of new carboxylatobipyridine (bis-bipyridine)ruthenium(II) complexes for dye-sensitized TiO2 electrodes by ARANYOS, V, GRENNBERG, H, TINGRY, S, LINDQUIST, S.-E, HAGFELDT, A

“…Methods for the preparation and purification of new carboxylated 2,2'-bipyridine ligands, two of which contain the new anchoring functionality malonate, and a…”
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Evidence for the intermediacy of (eta(3)-allyl)palladium complexes in the palladium-catalyzed acryloxylation of cycloalkenes: Unexpected oxidation of 1,5-cyclooctadiene by Jabre-Truffert, S, Delmas, AM, Grennberg, H, Akermark, B, Waegell, B

“…Palladium-catalyzed acryloxylation of several cycloalkenes in the presence of the Pd(OAc)(2)/p-benzoquinone/MnO2 catalytic system is reported. This oxidation…”
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Aerobic palladium-heteropolyacid-catalyzed allylic acetoxylation of cyclohexene by Grennberg, Helena, Bergstad, Katarina, Bäckvall, Jan- E

“…The heteropolyacid H 5[PMo 10V 2O 40] is an effective oxygen-activating catalyst in palladium-catalyzed aerobic allylic acetoxylation of cyclohexene…”
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Aerobic palladium-heteropolyacid-catalyzed allylic acetoxylation of cyclohexene: Recent developments in biomimetic oxidation catalysis by GRENNBERG, H, BERGSTAD, K, BÄCKVALL, J.-E

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Use of sulfoxides as cocatalysts in the palladium-quinone-catalyzed 1,4-diacetoxylation of 1,3-dienes. An example of ligand-accelerated catalysis by Grennberg, Helena, Gogoll, Adolf, Baeckvall, Jan E

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Chemical Shift Assignment of Geminal Protons in 3,7-Diazabicyclo[3.3.1]nonanes: An Unexpected Deviation from the Axial/Equatorial Chemical Shift Order by Gogoll, Adolf, Grennberg, Helena, Axén, Andreas

“…The chemical shift order of axial and equatorial methylene protons in 1,5‐disubstituted 3,7‐diazabicyclo[3.3.1]nonan‐9‐ones may be altered by substituents in…”
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