109144-15-2

Basic information

• Product Name: AlCl₂F₂^(1-)
• Synonyms: AlCl₂F₂^(1-)
• CAS NO: 109144-15-2
• Molecular Weight: 135.884
• Mol File: 109144-15-2.mol

Chemical Properties

• CAS DataBase Reference: AlCl₂F₂^(1-)(CAS DataBase Reference)
• NIST Chemistry Reference: AlCl₂F₂^(1-)(109144-15-2)
• EPA Substance Registry System: AlCl₂F₂^(1-)(109144-15-2)

Safety Data

• Hazardous Substances Data: 109144-15-2(Hazardous Substances Data)

Upstream product

• 7784-16-9 sodium tetrachloroaluminate 
• 7446-70-0 aluminium trichloride 

Relevant articles and documents

Aluminium-27 N.M.R. Studies of Aluminium Fluoro Complexes in Dichloromethane Solution: Evidence for the Tetrafluoroaluminate Anion

Mixed aluminium chloro/fluoro anions are formed in dichloromethane solution by the interaction of AlCl3 and .Aluminium-27 n.m.r. studies are restricted to the stoichiometric ranges F/Al from 1:1 to 3:1 and F/Al>8:1.Between these limits rapid precipitation reactions occur.In the Fluoride-rich stoichiometric range there is rapid exchange on the n.m.r. time scale between the aluminium fluoro anion and free fluoride, so that a direct identification of the species by the multiplicity of the resonance is not possible.Indirect evidence strongly suggests that the aluminium species is -.In the F/Al stoichiometry range from 1:1 to 3:1 aluminium-27 resonances were observed for all the other possible - species.Studies on the aluminium iodo/fluoro system support the identification of -, but the system is labile and the mixed iodo/fluoro species undergo rapid disproportionation.

Raman spectroscopy of fluoride-containing chloroaluminate melts

The effect of adding fluoride ions to chloroaluminate melts has been studied by Raman spectroscopy. In acidic (AlX3/MX mole ratio greater than 1, where M+ is an alkali-metal ion) melts at 200°C, the fluoride ion acts as a dibase and the new species Al2Cl6F- is formed, as indicated by comparison of observed and calculated frequencies. The polarization of the Raman bands indicates that a fluoride replaces a terminal chloride. Measurements have also been made on several basic melts (AlX3/MX mole ratio 4 with increasing amounts of NaF. It was found that fluoride replaces chloride progressively, depending on the molar ratio of NaF to NaAlCl4. The new species AlCl3F-, AlCl2F2-, and AlClF3-, together with the previously observed AlF4-, are clearly identified. Intensity measurements made on the characteristic bands allow a quantitative study of the distribution of each species as a function of melt composition. The calculated equilibrium constants follow the same trend as was found for similar chloro bromo species.