Physical and Chemical Properties of the α-Methoxydiphenylmethyl Radical

Temperature dependence of the intensity of the O-H stretching vibration of alcohols

“…Theoretical studies of infrared intensities of gases show that there should be no temperature dependence, at least within the harmonic approximation.3 Even when an anharmonic approximation is used, the temperature dependence is only a few per cent over several hundred degrees. 3 This temperature dependence could be magnified when the measurements are made in solution as temperature dependent interactions with solvent can occur; however, it is unlikely that it would approach the magnitude reported.2 Theory is also unable to explain the second observation reported, namely the common value of E& for the alcohols at their respective boiling points. It therefore seemed to us, particularly in view of this latter observation, that the answer to this temperature dependence might be in properties of the solution rather than any dynamic property peculiar to the O-H vibration.…”

Photoinduced electron transfer C—C bond cleavage reactions; oxidations and isomerizations

“…This reaction also gives intractable product(s), less starting material is recovered, and the material balance is low. When 27 is thermolyzed (34) favorably with oxidation of the a-methoxy benzhydryl radical 28. No products are found in control experiments when a deoxygenated CH,CN solution of 27 is irradiated in the absence of DCN; however, benzophenone (11) is formed in CH3CN (oxygen saturated).…”