Methylperoxy radicals were generated by the flash photolysis of azomethane-oxygen mixtures. The observed broadband spectrum of the CH302 radical is similar, but not identical to those reported previously. The CH:302 decay followed second-order kinetics a t high CH:jOz concentrations with k4, = (2.5
Electron-diffraction study of hexamethyl digermoxane [(CH3)3Ge]2O and hexamethyl distannoxane [(CH3)3Sn]2O in vapor
โ Scribed by L. V. Vilkov; N. A. Tarasenko
- Publisher
- SP MAIK Nauka/Interperiodica
- Year
- 1970
- Tongue
- English
- Weight
- 65 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0022-4766
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๐ SIMILAR VOLUMES
By means of a geometry optimization at the MP2/6-3 lG(d) level, the CH302 radicals have been found to exist in five isomeric forms. In order of decreasing stabilities, they are: HO-CH-OH ( ) > 0-CH,-OH (2) > CH&-0 (3) > CH2-O-OH (4) > CHI OH-O (5). On the other hand, there are six CHpO$ isomers: HO-
Ab initio calculations at the [QCISD(T)/6-31 +G(Zdf, p)]//MP2/6-31G(d) level have been applied to CH$CH200, a radical which is thought to be important in the atmospheric oxidation of dimethylsulfide. The geometries of CH3SCH200 and the related CI-ISSCH20 radical are similar to other organic radicals
Pulse radiolysis was used to study the kinetics of the reactions of CH 3 C(O)CH 2 O 2 radicals with NO and NO 2 at By monitoring the rate of formation and decay of NO 2 295 K. using its absorption at the rate constants 400 and 450 nm k(CH C(O)CH O ฯฉ NO) ฯญ (8 ฯฎ 3 2 2 and were de-ฯช12 ฯช12 3 ฯช1 ฯช1 2) ฯซ
Based on a n FTIR-product study of the photolysis of mixtures containing Br,-CH3CH0 and Br,-CH3CHO-HCHO in 700 torr of N,, the rate constant for the reaction Br + CHBCHO + HBr + CH3C0 was determined to be 3.7 x lo-', cm3 molecule-' sf'. In addition, the selective photochemical generation of Br at A