Published September 2005
| Version v1
Journal article
Isotope effects and final products in pyrolysis of halomethanes and perfluoroalkyl iodides
- 1. Sankt-Peterburgskij Gosudarstvennyj Univ., Sankt-Peterburg (Russian Federation)
Description
Final products of isothermal pyrolysis of CF2HBr, CF2ClBr, CH3I, CH2I2, CHI3, i-C3F7I, and C4F9I were determined using mass spectrometry and chromatography, and mechanisms of their formation were proposed. The enthalpy of formation of the free biradical CFBr.. (ΔfH00 = 80±20, ΔfH0298 = 60±20 kJ mol-1) was estimated. The dissociation energies ED,0(ID2C-D), ED,298(ID2C-D), and ED,0(IH2C-D) equal to 437±6, 444±6, and 435±4 kJ mol-1, respectively, were determined
Abstract (Russian)
С использованием методов масс-спектрометрии и хроматографии определены конечные продукты и предложены механизмы их образования при изотермическом пиролизе CF2НВr, CF2ClBr, CH3I, CH2I2, CHI3, i-C3F7I, C4F9I. Оценена энтальпия образования свободного бирадикала CFBr .. (AΔfH00 = 80±20, AΔfH0298 = 60±20 кДж/моль). Найдены значения энергии диссоциации ED,0(ID2C-D), ED,298(ID2C-D) и ED,0(IH2C-D), равные 437±6, 444±6 и 435±4 кДж/моль соответственноAdditional details
Additional titles
- Original title (Russian)
- Изотопные эффекты и конечные продукты в пиролизе галогенметанов и перфторалкилиодидов
Publishing Information
- Journal Title
- Zhurnal Obshchej Khimii
- Journal Volume
- 75
- Journal Issue
- 9
- Journal Page Range
- p. 1485-1494
- ISSN
- 0044-460X
- CODEN
- ZOKHA4
INIS
- Country of Publication
- Russian Federation
- Country of Input or Organization
- Russian Federation
- INIS RN
- 37019907
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- CHEMICAL COMPOSITION; CHEMICAL REACTION KINETICS; DEUTERIUM COMPOUNDS; DISSOCIATION ENERGY; FLUORINATED ALIPHATIC HYDROCARBONS; IODINATED ALIPHATIC HYDROCARBONS; ISOTOPE EFFECTS; MASS SPECTRA; PYROLYSIS; PYROLYSIS PRODUCTS; TEMPERATURE RANGE 0400-1000 K
- Descriptors DEC
- CHEMICAL REACTIONS; DECOMPOSITION; ENERGY; HALOGENATED ALIPHATIC HYDROCARBONS; HYDROGEN COMPOUNDS; KINETICS; ORGANIC COMPOUNDS; ORGANIC FLUORINE COMPOUNDS; ORGANIC HALOGEN COMPOUNDS; ORGANIC IODINE COMPOUNDS; REACTION KINETICS; SPECTRA; TEMPERATURE RANGE; THERMOCHEMICAL PROCESSES
Optional Information
- Notes
- 29 refs., 8 tabs.