Chemical Reactions at Surfaces.

Taylor, Hugh S.

doi:10.1021/cr60032a001

Cited by 28 publications

(12 citation statements)

References 31 publications

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“…Notably, interfacial reactions have been studied for a long time in chemistry, because it has been recognized already in the 19th century that the surface of certain substances considerably enhances the speed of chemical reactions [56] and application of surface coverage to derive rate laws has a long tradition [57]. However, the situation for these technologically important processes is fundamentally different to biochemical processes on surfaces.…”

Section: Discussionmentioning

confidence: 99%

A generic rate law for surface‐active enzymes

Kartal

Ebenhöh

2013

FEBS Letters

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a b s t r a c tMany biochemical reactions are confined to interfaces, such as membranes or cell walls. Despite their importance, no canonical rate laws describing the kinetics of surface-active enzymes exist. Combining the approach chosen by Michaelis and Menten 100 years ago with concepts from surface chemical physics, we here present an approach to derive generic rate laws of enzymatic processes at surfaces. We illustrate this by a simple reversible conversion on a surface to stress key differences to the classical case in solution. The available area function, a concept from surface physics which enters the rate law, covers different models of adsorption and presents a unifying perspective on saturation effects and competition between enzymes. A remarkable implication is the direct dependence of the rate of a given enzyme on all other enzymatic species able to bind at the surface. The generic approach highlights general principles of the kinetics of surface-active enzymes and allows to build consistent mathematical models of more complex pathways involving reactions at interfaces.

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Section: Discussionmentioning

confidence: 99%

A generic rate law for surface‐active enzymes

Kartal

Ebenhöh

2013

FEBS Letters

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“…It would seem much simpler and more convincing to postulate that the aldehyde and alcohol are produced in a manner similar to that proposed for a free methyl group. In the oxidation ol these substances the surface plays an important part, and it has been recently suggested by Taylor (8) that the surface in adsorbing the hydrocarbon somehow separates it into a hydrogen atom and a free alkyl group, which then reacts as we have shown.…”

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confidence: 50%

Molecular fragments and oxidation processes

Bates¹

1932

J. Chem. Educ.

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Oxidation processes play an important rdle in furnishing energy for all purposes. The use of these processes would be much benefited by an exact knowledge of their mechanism. Evidence is presented to show how important atoms and radicals are becoming in our concept of the steps by which chemical reactions take place. Specific examples of oxidation reactions which we are beginning to understand on this basis are discussed, together with the general grounds for our assumptions of the existence of such molecular fragments.The role of catalysts in the formation and removal of these fragments and the resultant effect on reaction rate is described. * Presented before the symposium on "Utilization of Gaseous Hydrocarbons" of the American Chemical Society at Buffalo, N. Y., September 1-2, 1931.

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“…Abstraction of a proton from pentaphenyldisilane (3) or pentamethyldisilane (4) would produce a silicenium ion with a single silyl substituent on the chargebearing silicon, and tris(trimethylsilyl)silane (5) would produce an ion with three silyl substituents. Nonetheless, these three substrates exhibit the same behavior as the two simple alkylor aryl-substituted systems, triphenylsilane (1) and methyldiphenylsilane (2). This behavior consists of reaction with triphenylmethyl perchlorate to produce a single intermediate no longer possessing a Si-H bond.…”

Section: Discussionmentioning

confidence: 89%

“…R3SiH + (C6H5)3CC104 -(C6H5)3CH + R3SiC104 (1) widely to generate carbenium ions, offer distinct advantages.…”

mentioning

confidence: 99%