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John M. Dyke

Researcher at University of Southampton

Publications -  275
Citations -  5419

John M. Dyke is an academic researcher from University of Southampton. The author has contributed to research in topics: X-ray photoelectron spectroscopy & Photoemission spectroscopy. The author has an hindex of 36, co-authored 271 publications receiving 5118 citations. Previous affiliations of John M. Dyke include Hong Kong Polytechnic University & National Institutes of Natural Sciences, Japan.

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Direct measurements of conformer-dependent reactivity of the Criegee intermediate CH3CHOO

TL;DR: The two distinct CH3CHOO conformers, syn- and anti-, both of which react readily with SO2 and with NO2, are probed, and it is demonstrated that anti-CH 3CHOO is substantially more reactive toward water and SO2 than is syn-CH3 CHOO.
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Direct measurement of Criegee intermediate (CH2OO) reactions with acetone, acetaldehyde, and hexafluoroacetone

TL;DR: The reactions of the simplest Criegee intermediate, CH(2)OO (formaldehyde oxide), with three carbonyl species have been measured by laser photolysis/tunable synchrotron photoionization mass spectrometry and the rate coefficient is supported, supporting the use of hexafluoroacetone as aCriegee-intermediate scavenger.
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Vacuum ultraviolet photoelectron spectroscopy of transient species. Part 7.—The methyl radical

TL;DR: In this article, the HeI vacuum ultraviolet photoelectron spectrum of the methyl radical produced by pyrolysis of azomethane has been investigated and three ionization potentials corresponding to the formation of the 1A′1, 3E′ and 1E′ ionic states were observed with vertical ionisation potentials of 984, 1476 and 1610 eV respectively, with the aid of both ab initio and semi-empirical molecular orbital calculations.
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A new method of calculation of Franck-Condon factors which includes allowance for anharmonicity and the Duschinsky effect: Simulation of the He I photoelectron spectrum of ClO 2

TL;DR: In this article, a new method of Franck-Condon (FC) factor calculation for nonlinear polyatomics, which includes anharmonicity and Duschinsky rotation, is reported.