All arrangements and procedures for steady-state and time-resolved ESR were as described in [4]. The radicals Me,C and Me3C02CCH, were generated by photolysis of the corresponding disubstituted ketones. These undergo type-I cleavage from a short-lived triplet state followed by a fast decarbonylation
The formation of (CH3)3Ċ, H2ĊC(Me)2OH and ĊH3 radicals in the radiolysis of aqueous t-butyl alcohol: on the solvation of t-butyl alcohol by water
✍ Scribed by K.V.S. Rao; M.C.R. Symons
- Publisher
- Elsevier Science
- Year
- 1973
- Tongue
- English
- Weight
- 170 KB
- Volume
- 20
- Category
- Article
- ISSN
- 0009-2614
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✦ Synopsis
Esppsure of aqueous glassy solutions of f-butyl alcohol to 6oCo vlays at 77°K gave ESR spectra characteristic of h!e& and H2CC(hfe)20H radicals. The results for the former were unusual in fh?t, for very dilute aqueous solutions and for solutions of 0.4 mole fraction through to the pure alcohol, all the Me& radicals were apparenGy freely rotating, whilst for solutions in the mole fraction region 0.05 to 0.4, some or all of these radicals were stationary. Implications with respect to water structura1 factors zre discussed.
📜 SIMILAR VOLUMES
A study of the reaction initiated by the thermal decomposition of di-t-butyl peroxide (DTBP) in the presence of (CHa)?C=CHz (B) at 391-444 K has yielded kinetic data on a number of reactions involving CH3 (M.), (CH&CCHzCH3 (MB.) and ( C H ~) ~C C H ~C ( C H ~) Z C H ~C H ~ (MBB.) radicals. The cross
## Abstract Rates of solvolysis of complex ions [Co(3Rpy)~4~Cl~2~]^+^ with R = __Me__ and __Et__ have been determined in mixtures of water with __t__‐butyl alcohol over a range of temperatures. Extrema found in the enthalpy Δ__H__\* and entropy Δ__S__\* of activation are correlated with the physica