𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Disproportionation reactions between alkyl and fluoroalkyl radicals. II. Fluoro- and trifluoromethyl with ethyl radicals

✍ Scribed by G. O. Pritchard; W. B. Nilsson; P. E. Marchant; L. C. Case; J. F. Parmer; R. F. Youngs

Publisher
John Wiley and Sons
Year
1984
Tongue
English
Weight
993 KB
Volume
16
Category
Article
ISSN
0538-8066

No coin nor oath required. For personal study only.

✦ Synopsis

Cross-disproportionation/combination ratios for CFH2 and CF3 with C2H5 radicals have been determined to be A = 0.032 f 0.012 and A = 0.098 f 0.020, respectively, over the temperature range 25-75°C. For the pathway that yields CFH and CzHs, A = 0.020 f 0.005 a t 25°C.

📜 SIMILAR VOLUMES

Disproportionation reactions between alk
Disproportionation reactions between alkyl and fluoroalkyl radicals. IV. Pentafluoroethyl and ethyl radicals
✍ G. O. Pritchard; V. H. Kennedy; G. M. Heldoorn; M. L. Piasecki; K. A. Johnson; D 📂 Article 📅 1987 🏛 John Wiley and Sons 🌐 English ⚖ 552 KB

A new determination of the disproportionation/cornbination ratio for C2Fs and CZH, radicals gives a value of A(C2F,, C2H,) = 0.24 5 0.02, independent of temperature. The cross-combination ratio for the two radicals was found to increase with temperature and the significance of this is discussed in e

Disproportionation reactions between alk
Disproportionation reactions between alkyl and fluoroalkyl radicals. V. Perfluoro-n-propyl and ethyl radicals revisited
✍ G. O. Pritchard; S. H. Abbas; J. M. Kennedy; S. J. Paquette; D. B. Hudson; M. A. 📂 Article 📅 1990 🏛 John Wiley and Sons 🌐 English ⚖ 1019 KB

## Abstract A redetermination of the disproportionation/combination ratio for __n__–C~3~F~7~ and C~2~H~5~ radicals gives a value of Δ(__n__–C~3~F~7~, C~2~H~5~) = 0.13 ± 0.01, independent of the temperature. The radicals were produced by the photolysis of __n__–C~3~F~7~COC~2~H~5~. The previous deter

Disproportionation reactions between alk
Disproportionation reactions between alkyl and fluoroalkyl radicals. VI. Difluoromethyl and n-propyl radicals
✍ G. O. Pritchard; S. H. Abbas; M. L. Piasecki; M. A. Meleason 📂 Article 📅 1991 🏛 John Wiley and Sons 🌐 English ⚖ 239 KB

Cross-disproportionation to combination ratios for CF2H and n-C3H7 radicals have been determined (the hydrogen acceptor radical is given first) to be A(n-C3H7,CF2H) = 0.30 2 0.01 and A(CF2H, n-C3H7) = 0.057 ? 0.006.

Disproportionation reactions between alk
Disproportionation reactions between alkyl and fluoroalkyl radicals. VII. Difluoromethyl with perfluoro-n-propyl and methyl radicals
✍ G. O. Pritchard; D. W. Follmer; M. A. Meleason; D. D. Shoemaker; J. C. Perkins; 📂 Article 📅 1992 🏛 John Wiley and Sons 🌐 English ⚖ 493 KB

## Abstract Mixtures of 1,1,3,3‐tetrafluoroacetone and perfluorodi‐__n__‐propyl ketone have been photolyzed together over the temperature range 50° to 200°C, and the disproportionation/combination ratio for __n__‐C~3~F~7~ and CF~2~H radicals has been determined to be Δ(__n__‐C~3~F~7~, CF~2~H) = 0.0

Disproportionation reactions between alk
Disproportionation reactions between alkyl and fluoroalkyl radicals. III. A reassessment of Δ values for CFyH(3−y) radicals (y = 1,2,3) with C2H5 radicals
✍ G. O. Pritchard; K. A. Johnson; W. B. Nilsson 📂 Article 📅 1985 🏛 John Wiley and Sons 🌐 English ⚖ 391 KB

New determinations of the disproportionation and combination ratios between CFZH and CzH5 radicals yield (the hydrogen acceptor radical is given first) A(CF2H, CzH5) = 0.068 t\_ 0.008, and A(C2H5,CF2H) = 0.37 t\_ 0.01. A reevaluation of the existing data on CFHP and CF3 radicals leads t o t h e foll

Combination and disproportionation react
Combination and disproportionation reactions of allylic radicals with ethyl, propyl, and t-Butyl Radicals
✍ D. L. Baulch; P. K. Chown; D. C. Montague 📂 Article 📅 1979 🏛 John Wiley and Sons 🌐 English ⚖ 766 KB

## Abstract 1‐Methylallyl, 1,1‐dimethylallyl, 1,2‐dimethylallyl, 1,3‐dimethylallyl, 1,1,2‐trimethylallyl, and 1‐ethylallyl radicals have been generated in the gas phase at 20 ± 1°C by addition of H atoms, formed by Hg(6^3^__P__~1~) photosensitization of H~2~, to appropriate dienes. Their combinatio