Reference

Kinetics of the reaction of chlorine atoms with dimethylnitramine

Kinetics of the reaction of chlorine atoms with dimethylnitramine. Lazarou, Yannis G.; Michael, Chrysostomos; Papagiannakopoulos, Panos (Dep. Chem., Univ. Crete, Heraklion 71409, Greece). J. Phys. Chem., 96(4), 1705-8 (English) 1992. CODEN: JPCHAX. ISSN: 0022-3654. DOCUMENT TYPE: Journal CA Section: 22 (Physical Organic Chemistry) The kinetics of the reaction Cl + Me2NNO2 ? HCl + CH2N(CH3)NO2 have been studied over the temp. range 273-353 K by using the very low pressure reactor technique. The abs. rate const. at 303 K was detd., as well as a rate expression detd. from measurements in the range 273-353 K. Transition-state (TS) models of the reaction rule out a TS geometry with collinear Cl-H-C bonds in favor of a bent TS geometry, and the estd. A factor was in excellent agreement with the exptl. value 10-9. 22537-15-1 and 4164-28-7 are just another two chemicals used in this study.84 cm3 mol-1 s-1. .

Pressure dependence of the reaction Cl + C2H2 over the temperature range 230 to 370 K

Pressure dependence of the reaction Cl + C2H2 over the temperature range 230 to 370 K. Kaiser, E. W. (Chem. Dep., Ford Motor Co., Dearborn, MI 48121-2053, USA). Int. J. Chem. Kinet., 24(2), 179-89 (English) 1992. CODEN: IJCKBO. ISSN: 0538-8066. DOCUMENT TYPE: Journal CA Section: 22 (Physical Organic Chemistry) Section cross-reference(s): 53 The pressure dependence of reaction (1), Cl + C2H2 + M ? C2H2Cl + M, has been measured by a relative rate technique using the pressure independent abstraction reaction (2), Cl + C2H6 ? C2H5 + HCl, as the ref. Values of k1/k2 were measured at pressures between 25 and 1300 torr at four temps. ranging from 252 to 370 K, using air, N2, or SF6 diluent gases. Low pressure measurements (10-50 torr) were performed at 230 K. Assuming a temp.-independent center broadening factor of 0.6 in the Troe formalism and using the established value of k2, these data can be used to det. the temp. dependent high and low pressure limiting rate consts. over the range of conditions studied in air for reaction (1): k￥(1) = 2.13 ′ 10-10 (T/300)-1.045 cm3/mol. s; and k0(1) = 5.4 ′ 10-30 (T/300)2.09 cm6/ mol.2 s. Use of these expressions yields rate consts. with an estd. 20% accuracy including uncertainty in the ref.In this experiment, several chemicals are used like 22537-15-1 and 74-86-2 reaction. The data indicate that the rate const. for a typical stratospheric condition at 30 km altitude is approx. 50% of that previously estd. .