Abstract Gd 2 C 16 H 20 O 18 F 18 , triclinic, P1‾ $P\overline{1}$ (no. 2), a = 8.652(3) Å, b = 9.204(4) Å, c = 12.305(5) Å, α = 78.156(5)°, β = 72.483(5)°, γ = 62.797(4)°, V = 828.4(6) Å 3 , Z = 1, R gt ( F ) = 0.0227, wR ref ( F 2 ) = 0.0554, T = 150 K.