## Abstract The 298 K heat of formation for the propionyl cation (C~2~H~5~CO^+^) has been measured previously by dissociative photoionization mass spectrometry. However, recent theoretical and experimental studies involving methylketene suggest that this may be significantly underestimated, resulti
Heat of formation of the radical cation of dimethyl disulfide
✍ Scribed by Diane T. Leeck; Hilkka I. Kenttämaa
- Publisher
- John Wiley and Sons
- Year
- 1994
- Tongue
- English
- Weight
- 211 KB
- Volume
- 29
- Category
- Article
- ISSN
- 1076-5174
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Over the past several years, a controversy has developed over the value of the heat of formation of the vinyl radical. Reported values for AHf(C2H3) range from 59.6 kcal/mol [l] to 71.5 kcal/mol [2] and even higher values can be cited from earlier work. Recently, Ayranci and Back [31 reported a valu
An examination of the results of measurements of the forward and reverse rate constants for the reaction shows that agreement between the kinetics and the thermochemistry is achieved only through use of a value of AH,-(C,H5) = 28 kcal mol-'. This system therefore provides further support ?or the re