The enthalpy of formation, AH&,, of the HSO radical has been determined to be -0.9 + 0.7 kcal/mol from the analysis of highresolution crossed beam reactive scattering experiments on the reaction 0( 'P) +H,S+HSO+H at different collision energies. The results are compared with previous experimental an
Thermochemical properties of the HSO radical
โ Scribed by James N. White; W.C. Gardiner Jr.
- Publisher
- Elsevier Science
- Year
- 1978
- Tongue
- English
- Weight
- 299 KB
- Volume
- 58
- Category
- Article
- ISSN
- 0009-2614
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โฆ Synopsis
Receiwd 30 June 19X3
Thermochemical properties of the HSO radical in the ideal gas state from 0 to 3000 K uere calculated in the harmonic-oscillator, rigid-rotor approGrnation using recent spectroscopic data for the vibrational frequencies and heat of formation, and theoretica! estimates of the moIecular geometry.
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spectra and the fluorescence hfetlme of HSO (x 2A'-%2A") rddlcals XC measured m the g.~s phase III the wawlcngth range 570-700 nm The progresslon of the SO strctchmg mode (u3) IS observed m cmlsslon and cxc~tat~on spectra The zero-pressure hfetune cxtrapolatcd from the Stern-Volmer plots IS 11 3:: "
## Abstract Azoethane was irradiated in the presence of carbon monoxide in the temperature range of 238 to 378 K. Kinetic parameters for the addition of ethyl radicals to carbon monoxide and for the decomposition of propionyl radicals were determined. The rate constants were found to be log __k__(c
The enthalpy increments of Y Si O and Dy Si O have been measured by drop-calorimetry 2 2 7 2 2 7 ลฝ . ลฝ . from T s 516.7 to 928.4 K, and T s 516.7 to 918.2 K, respectively. The standard molar enthalpy of formation of monoclinic Y Si O has been deduced from its enthalpy of solution 2 2 7 . y3 . y3 T ลฝ