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Your search keyword '"Siskos, Michael G."' showing total 2 results
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2 results on '"Siskos, Michael G."'

1. Free electron transfer from xanthenyl- and fluorenylsilanes (Me(sub 3) or Ph(sub 3) to parent solvent radical cations: Effects of molecule dynamics

Author

Karakostas, Nikolaos, Naumov, Sergej, Siskos, Michael G., Zarkadis, Antonoios K., Hermann, Ralf, and Brede, Ortwin

Subjects
Silane -- Atomic properties, Silane -- Chemical properties, Electron transport -- Research, Chemicals, plastics and rubber industries
Abstract

Parent radical cation of nonpolar solvent (alkanes and alkyl chlorides) ionize 9-(trimethylsilyl)xanthenes and 9-(trimethylsilyl)fluorenes in a diffusion-controlled electron transfer. A mobility restriction of the benzylic silane group in positions vertical to the phenyl plane stabilizes the radical cation and accounts for a dissociative radical cations, which undergo C-Si bond fragmentation in the order benzylsilane > xanthenylsilane > fluorenylsilane.

Published
2005

2. Mechanism of the photodissociation of 4-diphenyl(trimethylsilyl)methyl-N,N-dimethylaniline

Author

Tasis, Dimitrios A., Siskos, Michael G., Zarkadis, Antonios K., Steenken, Steen, and Pistolis, Georgios

Subjects
Organic compounds -- Research, Photochemical research -- Analysis, Ring-opening polymerization -- Analysis, Scission (Chemistry) -- Analysis, Biological sciences, Chemistry
Abstract

Results reveal that in polar media, 4-diphenyl(trimethylsilyl)methyl-N,N-dimethylaniline photoionizes to two types of radical cations via a two-photon process and the triplet state. In nonpolar solvents, only one type of radical cation is formed.

Published
2000

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