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PHOTOCHEMICAL OXIDATIONS — VI. THE NATURE OF THE DONOR SITE IN THE OXYGEN‐HYDROCARBON CONTACT CHARGE‐TRANSFER COMPLEX
Author(s) -
STENBERG V. I.,
SNEERINGER P. V.,
NIU C.,
KULEVSKY N.
Publication year - 1972
Publication title -
photochemistry and photobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.818
H-Index - 131
eISSN - 1751-1097
pISSN - 0031-8655
DOI - 10.1111/j.1751-1097.1972.tb07339.x
Subject(s) - chemistry , oxygen , hydrocarbon , photochemistry , charge (physics) , organic chemistry , quantum mechanics , physics
— Two sets of experiments, designed to determine whether the C—C or C—H bonds of hydrocarbons act as the donor site in the contact charge‐transfer complex between oxygen and hydrocarbons, were performed. It was found that the rates of oxygen uptake during the photooxidation increase with decreasing ‘ s character’ of the C—H bond. Also, the rates of product accumulation during the induction period were shown to increase with basicity of the C—H bond, i.e., tertiary C—H > secondary C—H > primary C—H. The conclusion from these data is that the C—H bond is the donor site.