SOME FLUOROALANES AND RELATED INTERMEDIATES

Fluoroalanes, AlFnX3-n·m(THF), and related intermediates, AlYn[OCH(CH3)2]3-n·m(THF), [XCl, Br, I, OCH(CH3)2; YH, Cl; n = 1,2; m = 0-2], were prepared and studied. Monofluoroalanes were isolated as bis(tetrahydrofuran)dihalofluoroalanes, AlFX2·2 THF); the notable exception was nonsolvated AlF[OCH(CH3)3]2. The corresponding difluoroalanes were less solvated but still tractable. Molecular weight determinations in THF indicated that difluoroalanes were more polymeric (D.P. 4-14) than the corresponding monofluoroalanes. Infrared and NMR data were consistent with fluorine bridged bonding especially for the difluoroalanes. © 1969.