Crystal Structure of Na3Li(TiF6)2

Single crystals of Na₃Li(TiF₆)₂ were synthesized and studied by X-ray diffraction analysis (DAR-UMBk diffractometer, MoK radiation, graphite monochromator); space group P 2₁ c, a = 5.130(1), c = 18.046(4) Å. The structure was solved by the heavy-atom method and refined by the full-matrix least-squares method in anisotropic approximation to R = 0.053 and wR = 0.048 for 468 independent reflections with I > 3(I). The Madelung's constant for the lattice energy was calculated and the structure was compared to structures of other hexafluoro complexes of Group IV elements.