✦ LIBER ✦

Abstraction of chlorine atoms from chloromethanes by the cyclohexyl radical

✍ Scribed by M. G. Katz; A. Horowitz; L. A. Rajbenbach

Publisher: John Wiley and Sons
Year: 1975
Tongue: English
Weight: 560 KB
Volume: 7
Category: Article
ISSN: 0538-8066
DOI: 10.1002/kin.550070203

No coin nor oath required. For personal study only.

✦ Synopsis

The kinetics of chlorine atom abstraction from the chloromethanes (CM)CC14, CHCl3, and CHBCl2 by radiolytically generated cyclohexyl radicals has been studied in the liquid phase by a competitive method. The halogen abstraction data have been put on an absolute basis by comparing the rates of the metathetical reactions with the known rate of addit ion of cyclohexyl radicals to C2C14.

The following Arrhenius parameters were obtained:

CCl, 0.72 f 0.02 -1.42 f 0.05 9.40 zt 0.08 5.88 f 0.15 333-453 CHClla 0.77 f 0.06 2.86 f 0.01 9.45 f 0.12 10.16 f 0.11 392-492 CH2C12 0.56 f 0.12 6.37 f 0.27 9.42 zt 0.18 13.67 z k 0.37 463-543

The error limits are the standard deviations from least mean square Arrhenius plots.

reaction from CM is considered.

The possible application of the Evans-Polanyi relationship to chlorine atom abstraction

📜 SIMILAR VOLUMES

Abstraction of chlorine atoms from polyc

Abstraction of chlorine atoms from polychloroalkanes. II. Neighboring group effect on the rates of chlorine abstraction by cyclohexyl radicals

✍ M. G. Katz; L. A. Rajbenbach 📂 Article 📅 1975 🏛 John Wiley and Sons 🌐 English ⚖ 486 KB

A(C2C14) kcal mole ## 9 . mole-'sec-'

Abstraction of chlorine atoms from polyc

Abstraction of chlorine atoms from polychloroethanes. IV. The kinetics of chlorine abstraction from 1,1,2-trichloroethane, 1,1-dichloroethane, and 1,2-dichloroethane by cyclohexyl radicals

✍ M. G. Katz; G. Baruch; L. A. Rajbenbach 📂 Article 📅 1977 🏛 John Wiley and Sons 🌐 English ⚖ 573 KB

The kinetics of chlorine atom abstraction from the chloroethanes (EClH j 1,1,2-C2C13H3, 1, 1-CZCl2H, and 1,2-CzCl2H4 by radiolytically generated cyclohexyl radicals was studied in the liquid phase by a competitive method. The chlorine atom abstraction data were put on an absolute basis by comparing

Abstraction of chlorine atoms from chlor

Abstraction of chlorine atoms from chloroalkanes. III. The kinetics of liquid phase reactions of trichlorosilyl radicals with chloromethanes

✍ R. Aloni; A. Horowitz; L. A. Rajbenbach 📂 Article 📅 1976 🏛 John Wiley and Sons 🌐 English ⚖ 617 KB

The kinetics of chlorine atom abstraction from the chloromethanea (ClM), CCl,, CHCl,, CHZC12, and CH3Cl by radiolytically generated trichlorosilyl radicals was studied in the liquid phase by a competitive method. Arrhenius parameters of chlorine atom abstraction from chloroinethanes relative to that

Hydrogen/deuterium abstraction by chlori

Hydrogen/deuterium abstraction by chlorine atoms from gaseous ethyl chlorides. Secondary kinetic isotope effects in the system CH3CH2Cl, CH3CHDCl, CH3CD2Cl

✍ J. Niedzielski; E. Tschuikow-Roux; T. Yano 📂 Article 📅 1984 🏛 John Wiley and Sons 🌐 English ⚖ 543 KB

The abstraction of hydrogen/deuterium from CH3CH2C1, CH,CHDCl, and CH,CD,Cl by photochemically generated ground-state chlorine atoms has been investigated over the temperature range of 8-94°C using methane as a competitor. Rate constant data for the following reactions have been obtained: (1) CH,C&C

Abstraction of chlorine atoms from chlor

Abstraction of chlorine atoms from chloroalkanes. V. The liquid-phase reaction between Et3SiH radicals and CH2Cl2, CHCl3, CCl4, and CCl3CN

✍ R. Aloni; L. A. Rajbenbach; A. Horowitz 📂 Article 📅 1979 🏛 John Wiley and Sons 🌐 English ⚖ 318 KB

The kinetics of chlorine transfer from CHzC12, CHC13, cc4, and CCI3CN to the triethylsilyl radical was studied in the liquid phase by a competitive method. Br abstraction from 1- bromopentane was used as a reference. The following Arrhenius parameters were determined: 40 f 0.10 1.11 f 0.18 303-343

Rate constants and kinetic isotope effec

Rate constants and kinetic isotope effects for hydrogen/deuterium abstraction by chlorine atoms from the chloromethyl group in CH2ClCH2Cl, CD2ClCD2Cl, CH2ClCHCl2, and CH2ClCDCl2

✍ E. Tschuikow-Roux; F. Faraji; Jan Niedzielski 📂 Article 📅 1986 🏛 John Wiley and Sons 🌐 English ⚖ 804 KB

The abstraction of hydrogen and deuterium from 1,2-dichIoroethane, 1,1,2trichloroethane, and two of their deuterated analogs by photochemically generated ground state chlorine atoms has been investigated in the temperature range 0-95°C using methane as a competitor. Rate constants and their temperat