Arsenic trifluoride solvent

Tetrakis(phenyldifluorophosphine)nickel-(0) could also be obtained, using arsenic trifluoride in the presence of catalytic amounts of antimony pentachloride, or zinc fluoride as fluorinating agents. Yields as high as 50% could be obtained, but sizable decomposition on the process of fluorination of the chlorophosphine nickel-(0) complexes in solution could not be entirely suppressed. The marked instability of zerovalent nickel-phosphine complexes in solution in organic solvents, even under strictly anhydrous and anaerobic conditions, has been noted by several workers (16,20), but is still lacking a detailed explanation. A closer examination of the system carbon tetrachloride-tetrakis(trichlorophosphine)nickel-(0) (23) showed the main pa h of the reaction to consist in the formation of hexachloro-ethane with conversion of zerovalent into bivalent nickel, while the coordinated... 

As mentioned above, arsenic trifluoride does not react with fluoroolefins in the absence of a catalyst, and due to a convenient boiling point and high polarity it was often used as a solvent for an electrophilic reaction, such as mercuration. Later it was found that in the presence of a Lewis acid, such as SbF5, this compound readily adds to different fluoroethylenes [7,121,122] ... 

Indeed the reaction between alkyl- or arylchlorophosphines R PCls and either antimony (or arsenic) trifluoride in the absence of solvent offers a convenient route to the pentavalent fluorophosphoranes R PFg (151, 283, 286, 298). 

This polymer has excellent environmental and thermal stability in their neutral and doped states [100, 101] exhibiting optical properties and conductivity values up to 600 S cm in the doped form [102]. Polythiophene presents poor solubility in most organic solvents, except in mixtures such of arsenic trifluoride/pentafluoride which limits its applications. However, it has been reported that the incorporation of a long flexible alkyl side chain on the 3-position of the thiophene ring produces a soluble polymer in common organic solvents without altering the chemical and physical properties of the polymer [103]. 

A powerful oxidizer. Explosive reaction with acetaldehyde, acetic acid + heat, acetic anhydride + heat, benzaldehyde, benzene, benzylthylaniUne, butyraldehyde, 1,3-dimethylhexahydropyrimidone, diethyl ether, ethylacetate, isopropylacetate, methyl dioxane, pelargonic acid, pentyl acetate, phosphoms + heat, propionaldehyde, and other organic materials or solvents. Forms a friction- and heat-sensitive explosive mixture with potassium hexacyanoferrate. Ignites on contact with alcohols, acetic anhydride + tetrahydronaphthalene, acetone, butanol, chromium(II) sulfide, cyclohexanol, dimethyl formamide, ethanol, ethylene glycol, methanol, 2-propanol, pyridine. Violent reaction with acetic anhydride + 3-methylphenol (above 75°C), acetylene, bromine pentafluoride, glycerol, hexamethylphosphoramide, peroxyformic acid, selenium, sodium amide. Incandescent reaction with alkali metals (e.g., sodium, potassium), ammonia, arsenic, butyric acid (above 100°C), chlorine trifluoride, hydrogen sulfide + heat, sodium + heat, and sulfur. Incompatible with N,N-dimethylformamide. 

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