摘要:
The reactions of SnF2 and SbF3 with NbCl5 in acetonitrile or dimethyl sulfoxide were studied by F-19, Nb-93, and Sn-119 NMR spectroscopy. The products of reaction in acetonitrile are anionic, while those in dimethyl sulfoxide are neutral octahedral niobium chlorofluoride complexes. Tin(II) difluoride and antimony(III) trifluoride are powerful sources of fluoride ions in the preparation of metal chlorofluoride and fluoro complexes.