Rate constants for Hydrogen abstraction reactions of NO3 in aqueous solution
โ Scribed by L. V. Shastri; Robert E. Huie
- Publisher
- John Wiley and Sons
- Year
- 1990
- Tongue
- English
- Weight
- 392 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0538-8066
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โฆ Synopsis
Rate constants have been measured by pulse radiolysis for the reactions of the NO, radical with five cyclic ethers and a series of alcohols. Rate constants ranged from 3.5 x lo4 M-' 5 -l for deuterated methanol to 1.1 x lo7 M-' 5-l for tetrahydrofuran. The rate constants for the reactions of NO3 with the alcohols 1-propanol to 1-heptanol were found to be linearly dependent on the number of CH2 groups with a group reactivity of 6.4 x lo5 M-' s-'.
๐ SIMILAR VOLUMES
Rate constants have been measured in aqueous solutions for the reactions of the carbonate radical, COs'-, with several saturated alcohols and one cyclic ether as a function of temperature. Arrhenius pre-exponential factors ranged from 2 X lo8 to 1 X lo9 e mol-' s-l and activation energies ranged fr
The kinetics of the acqueous-phase reactions of the free radicals .OH, .Cl,, and SO; . with the halogenated acetates, CHzFCOO-, CHF2COO-, CF3COO-, and with CHzClC00-, CHClzC00-, CC13COOwere investigated. Generally, the reactivity decreases with increasing halogen substitution and is in the order k(.
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Rate constants have been determined for the reactions of SO4with a series of alkanes and ethers. The SO, radical was produced by the laser-flash photolysis of persulfate, SZO: -. For methane, only an upper limit of 1 x lo6 M-' s-\* could be determined. For ethane, propane, and 2-methylpropane, rate