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Spin‐Polarised (by CIDEP) Silicon‐Containing Radicals
Author(s) -
Buglass John C.,
McLauchlan Keith A.
Publication year - 1989
Publication title -
israel journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.908
H-Index - 54
eISSN - 1869-5868
pISSN - 0021-2148
DOI - 10.1002/ijch.198900007
Subject(s) - chemistry , radical , adduct , silicon , maleic anhydride , photochemistry , peroxide , acetone , spin (aerodynamics) , hydride , organic chemistry , metal , engineering , copolymer , aerospace engineering , polymer
Polarised ESR signals, observed from silicon‐centred radicals produced by irradiation of either di‐tert butyl peroxide or acetone in the presence of a silicon hydride, are presented and analysed. The novel feature that radical pair mechanism CIDEP can be used to accentuate weak sidebands due to radicals containing rare isotopes (here 29 Si) is demonstrated. Adduct radicals formed by reaction with maleic anhydride and vinyltrimethylsilane were also studied. With the former, the adduct produced and observed in early‐time experiments remains the same at room temperature and above; in steady‐state studies this has been reported not to be so.