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Signs and temperature dependence of the coupling constants in F2PPF2, F2PSPF2, and MeN(PF2)2

✍ Scribed by Rudolph, Ralph W.; Newmark, R. A.


Book ID
126925873
Publisher
American Chemical Society
Year
1970
Tongue
English
Weight
619 KB
Volume
92
Category
Article
ISSN
0002-7863

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Rate constants for reactions of SiFz radicals have been measured at 2 Torr in a high-temperature fast-flow system. The bimolecular reaction rate constant for SiF\*+F, over a temperature range of 282-617 K can be expressed as (1.0+0.25)X IO-"exp[ -(1850~2OO)lRT] cm3 molecule-' s-', where R is incal m

Signs of proximate 31P, 19F and 19F, 19F
✍ Ted Schaefer; Kirk Marat; Alberta Lemire; Alexander F. Janzen πŸ“‚ Article πŸ“… 1982 πŸ› John Wiley and Sons 🌐 English βš– 195 KB

## Abstract In 2‐trifluoromethylphenyldifluorophosphine the proximate couplings ^4^__J__(^19^F^31^P) and ^5^__J__(^19^F^19^F) are + 68.3 and + 8.3 Hz, respectively. ^1^__J__(^13^C^31^P) is βˆ’57.0 Hz, ^2^__J__(^13^C‐1, ^10^F) is + 9.9 Hz and ^2^__J__(^13^C‐6, ^13^C‐6, ^31^P) is + 10.1 Hz. The trifluo