Abstract
AbstractBrF can be prepared by reaction of Br2 and F2 in various solvents below –100 °C. In solution it is identified by 19F NMR and Raman spectroscopy. From CH3Cl solution a single crystal structure determination of a BrF/CH3Cl adduct was obtained. The preparation from BrF3 and Br2 at 600 °C also delivers BrF in small amounts. The crystal structure of BrCl comes in an ordered and a disordered variety. The ordered structure is made of Br–Cl···Br–Cl chains. Computations suggest that neat BrF crystallizes in a dipol‐dipole type polymeric structure rather than a halogen bonded one as in ClF. A possible intermediate along the decomposition pathway into BrF3 and Br2 is Br–BrF2.
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