Abstract: | Two Gallium Fluoride Ammine Complexes: Ga(NH3)F3 and Ga(NH3)2F3 Two gallium trifluoride ammines, Ga(NH3)F3 and Ga(NH3)2F3, are obtained as single crystals through oxidation of gallium metal with NH4HF2 (Ga : NH4HF2 = 1 : 1.5) and NH4F (Ga : NH4F = 1 : 3.5), respectively, at 450 °C and 400 °C. Ga(NH3)F3 crystallizes with the non-centrosymmetric space group Abm2 (a = b = 544.6(2) pm, c = 986.6(4) pm) forming two-dimensional layers of Ga(NH3)F5] octahedra. The addition of another NH3 molecule in Ga(NH3)2F3 (orthorhombic, Immm, a = 700.0(3) pm, b = 724.7(2) pm, c = 393.1(1) pm) leads to one-dimensional rods of Ga(NH3)2F4] octahedra running parallel 001] which are stacked in the 010] direction. Infrared spectra suggest hydrogen bonding (N–H…F) in Ga(NH3)F3, for Ga(NH3)2F3 an unequivocal statement is not possible. |