Surface photochemistry: cadmium sulfide-mediated dimerization of phenyl vinyl ether. The dark reaction

Ilyas, Mohammed; Mayo, P. De

doi:10.1021/ja00304a013

Cited by 25 publications

(8 citation statements)

References 2 publications

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“…Following the early work of Kraeutler and Bard on the TiO 2 -catalyzed photo-Kolbe reaction, [140] many studies appeared concerning photocatalytic organic reactions in the presence of colloidal or suspended semiconductor particles. They include cis-trans isomerizations, [69b, 141] valence isomerizations, [142] substitution and cycloaddition reactions, [72,143] oxidations, [144] and reductions. [145] In general, UV excitation was indispensable and in all cases well-known compounds were formed, which were not isolated but only identified by spectroscopic methods.…”

Section: à C and C à N Couplingmentioning

confidence: 99%

Semiconductor Photocatalysis—Mechanistic and Synthetic Aspects

2012

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Preceding work on photoelectrochemistry at semiconductor single-crystal electrodes has formed the basis for the tremendous growth in the three last decades in the field of photocatalysis at semiconductor powders. The reason for this is the unique ability of inorganic semiconductor surfaces to photocatalyze concerted reduction and oxidation reactions of a large variety of electron-donor and -acceptor substrates. Whereas great attention was paid to water splitting and the exhaustive aerobic degradation of pollutants, only a small amount of research also explored synthetic aspects. After introducing the basic mechanistic principles, standard experiments for the preparation and characterization of visible light active photocatalysts as well as the investigation of reaction mechanisms are discussed. Novel atom-economic C-C and C-N coupling reactions illustrate the relevance of semiconductor photocatalysis for organic synthesis, and demonstrate that the multidisciplinary field combines classical photochemistry with electrochemistry, solid-state chemistry, and heterogeneous catalysis.

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Section: à C and C à N Couplingmentioning

confidence: 99%

Semiconductor Photocatalysis—Mechanistic and Synthetic Aspects

2012

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“…Data on the effect of precipitation conditions on the properties of the CdS particles are scarce (12)(13)(14). This study deals with the influence of the types of the precipitating components and their concentration on (i) the crystal structure, 1 size, shape, and specific surface area of the particles obtained by precipitation with hydrogen sulfide, as well as on (ii) the uptake by CdS of the nonconstituent anions (as impurities) from the solution during precipitation.…”

Section: Introductionmentioning

confidence: 99%

Crystal structure and texture of H2S-precipitated cadmium sulfide

Westerflier

Kolář

Stein

et al. 1989

Journal of Colloid and Interface Science

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“…Dimerization of phenyl vinyl ether has also been observed recently in CdS suspension in CH2C1,. 8 Earlier studies have indicated that semiconductors such as CdS readily undergo photocorr~sion.~ In this study we have not attempted to check the stability of the semiconductor photocatalysts. Further evaluation of this photoelectrochemical polymerization process is currently being carried out by employing semiconductors as colloidal suspensions and single crystals.…”

Section: Resultsmentioning

confidence: 99%

Photoelectrochemistry in particulate systems. 5. Visible light‐induced polymerization of 1‐vinylpyrene in semiconductor suspensions

Kamat

Todesco

1987

J. Polym. Sci. A Polym. Chem.

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Photoelectrochemical polymerization of 1‐vinylpyrene has been achieved in a semiconductor photocatalyst suspension under visible light irradiation (λ > 480 nm). Bandgap excitation of CdS, CdSe or Fe2O3 led to the oxidation of 1‐vinylpyrene, which initiated the polymerization process. A 25–47% yield of poly(1‐vinylpyrene) could be obtained upon irradiation of these semiconductor photocatalyst suspensions with 1‐vinylpyrene in acetonitrile. Dependence of the polymer yield on various experimental conditions is described.

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Surface photochemistry: cadmium sulfide-mediated dimerization of phenyl vinyl ether. The dark reaction

Cited by 25 publications

References 2 publications

Semiconductor Photocatalysis—Mechanistic and Synthetic Aspects

Semiconductor Photocatalysis—Mechanistic and Synthetic Aspects

Crystal structure and texture of H2S-precipitated cadmium sulfide

Photoelectrochemistry in particulate systems. 5. Visible light‐induced polymerization of 1‐vinylpyrene in semiconductor suspensions

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