Authors: M. Nakashima, E. Hayon The flash photolysis of air-free aqueous acetone solutions was shown to produce CH2COCH3 and (CHg^COH radicals. The acetonyl CH2COCH3 radical has an absorption maximum at 295 nm and an extinction coef- ficient 6295 = 800 ± 150 M-1 cm-1. No intermediates could be observed in the flash photolysis of air-free aqueous amide solutions. In presence…
Authors: E. Hayon, T. Ibata, N. N. Lichtin, M. Simic The reactivity and sites of attack of hydroxyl radicals on simple amides in aqueous solution were studied. The following amides were examined: formamide (F), N-methylformamide (NMF), N,N-dimethylformamide (DMF), acetamide (A), N-methylacetamide (NMA), and , -dimethylacetamide (DMA). The rate constants for reaction of OH radical with NMF, DMF, NMA, and DMA…
Authors: N. Hayashi, E. Hayon, T. Ibata, N. N. Lichtin, A. Matsumoto The pulse radiolysis of the following liquid amides has been investigated: formamide (F), N-methylformamide (NMF), Ar,Ar-dimethylformamide (DMF), AqAr-dimethylacetamide (DMA), and Ar-methylpropionamide (NMP). Radiation-induced ionization and excitation processes have been observed on irradiation of solu- tions of anthracene (A) and naphthalene (N), as indicated by the characteristic spectra of…