An FTIR spectroscopic study of the kinetics and mechanism for the NO2-initiated oxidation of tetramethyl ethylene at 298 K

✍ Scribed by H. Niki; P. D. Maker; C. M. Savage; L. P. Breitenbach; M. D. Hurley

• Publisher: John Wiley and Sons
• Year: 1986
• Tongue: English
• Weight: 545 KB
• Volume: 18
• Category: Article
• ISSN: 0538-8066
• DOI: 10.1002/kin.550181103

✦ Synopsis

The kinetics and mechansim for the NO,-initiated oxidation of tetramethyl ethylene ITME) have been studied using the FTIR spectroscopic method in mixtures containing NO, and TME (0.1-1.0 Torr) and N,-02 (700 Tori-) at 298 t 2 K. While TME decayed according to -d[TME]/dt = hOb,iNOLl [TME], NOz exhibited a complex kinetic behavior. Furthermore, values of k,,,,. were dependent on [021. Among the products were (CH,),CO and at least three NO2-containing compounds. These results indicate the formation of a nitro-alkylperoxy radical via reactions (l), ( -l ) , and (21, and its subsequent reactions leading t o the observed products. NO2 I . 11.-11 (CH,,LC = CtCH:,), + NO2 (CH,),C -CICH,), NO, 0 0 -(21 The [O,l-dependence of hubs yielded k, = (1.07 i 0.15) x 10 ' ' I cm3 molecule-' s k , ; k , = (3.54 -t 0.61) x and molecule cm.'.