✦ LIBER ✦

The reaction of photochemically generated CF3O radicals with CO

✍ Scribed by Richard Meller; Geert K. Moortgat

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 181 KB
Volume: 29
Category: Article
ISSN: 0538-8066
DOI: 10.1002/(sici)1097-4601(1997)29:8<579::aid-kin3>3.0.co;2-r

No coin nor oath required. For personal study only.

✦ Synopsis

CF 3 O 2 CF 3 was photolyzed at 254 nm in the presence of CO in 760 torr N 2 or air at 296 K in a static reactor. In N 2 , the products CF 3 OC(O)C(O)OCF 3 and CF 3 OC(O)O 2 C(O)OCF 3 were detected by FTIR spectroscopy. In air, the only observed products were CF 2 O and CO 2 and a chain process, initiated by CF 3 O, was invoked for the conversion of CO to CO 2 . From both product studies, a mechanism for the CF 3 O initiated oxidation of CO was derived, involving the addition reaction CF 3 O 2 ϩ CO CF 3 OC(O). The rate constant for the reaction CF 3 O ϩ CO at 296 K at a total pressure of 760 torr air was determined to be k(CF 3 O ϩ CO) ϭ (5.0 Ϯ 0.9) ϫ 10 Ϫ14 cm 3 molecule Ϫ1 s Ϫ1 .

📜 SIMILAR VOLUMES

Highly Enantioselective Diels–Alder Reac

Highly Enantioselective Diels–Alder Reaction of a Photochemically Generated o-Quinodimethane with Olefins

✍ Benjamin Grosch; Caroline N. Orlebar; Eberhardt Herdtweck; Werner Massa; Thorste 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 English ⚖ 114 KB

Photolysis of CF3NO as a source of CF3 r

Photolysis of CF3NO as a source of CF3 radicals, rate constant of the CF3 + CF3NO reaction at 296 K

✍ A. B. Garmanov; A. B. Vakhtin 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 456 KB 👁 2 views

The linear absorption cross-sections and photodissociation quantum yields for C F 3 N 0 have been measured at the wavelengths 694 3 and 632 8 nm (ruby and He-Ne lasers respectively) in a wide range of total pressure at T = 296 K The secondary reactions following the photolysis of C F 3 N 0 have been

Rate constants for the reactions of OH r

Rate constants for the reactions of OH radicals with CH3OCF2CF3, CH3OCF2CF2CF3, and CH3OCF(CF3)2

✍ K. Tokuhashi; A. Takahashi; M. Kaise; S. Kondo; A. Sekiya; S. Yamashita; H. Ito 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 133 KB 👁 1 views

The rate constants for the reactions of OH radicals with CH 3 OCF 2 CF 3 , CH 3 OCF 2 CF 2 CF 3 , and CH 3 OCF(CF 3 ) 2 have been measured over the temperature range 250-430 K. Kinetic measurements have been carried out using the flash photolysis, laser photolysis, and discharge flow methods combine

Kinetics of the gas-phase reactions of N

Kinetics of the gas-phase reactions of NO3 radicals and O3 with 3-methylfuran and the OH radical yield from the O3 reaction

✍ Alvaro Alvarado; Roger Atkinson; Janet Arey 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 386 KB 👁 2 views

Using relative rate methods, rate constants have been measured for the gas-phase reactions of 3-methylfuran with NO, radicals and 0, at 296 ? 2 K and atmospheric pressure of air. The rate constants determined were (1.31 ? 0.46) X lo-'' cm' molecule-' s-' for the NO, radical reaction and (2.05 ? 0.52

Absolute rate constants for the self rea

Absolute rate constants for the self reactions of HO2, CF3CFHO2, and CF3O2 radicals and the cross reactions of HO2 with FO2, HO2 with CF3CFHO2, and HO2 with CF3O2 at 295 K

✍ Jens Sehested; Trine Møgelberg; Kjell Fagerström; Gharib Mahmoud; Timothy J. Wal 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 175 KB 👁 2 views

The kinetics of the self-reactions of HO 2 , CF 3 CFHO 2 , and CF 3 O 2 radicals and the cross reactions of HO 2 with FO 2 , HO 2 with CF 3 CFHO 2 , and HO 2 with CF 3 O 2 radicals, were studied by pulse radiolysis combined with time resolved UV absorption spectroscopy at 295 K. The rate constants f

Kinetics of the gas-phase reaction of CF

Kinetics of the gas-phase reaction of CF3CF2CH2OH with OH radicals and its atmospheric lifetime

✍ L. Chen; K. Fukuda; N. Takenaka; H. Bandow; Y. Maeda 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 79 KB 👁 2 views

CF 3 CF 2 CH 2 OH is a new chlorofluorocarbon (CFC) alternative. However, there are few data about its atmospheric fate. The kinetics of its atmospheric oxidation, the OH radical reaction of CF 3 CF 2 CH 2 OH, has been investigated in a 2-liter Pyrex reactor in the temperature range of 298 ϳ 356 K u