Crystal structure of WI4

Resumo

Tungsten tetraiodide WI₄ (1) is produced by a high-temperature reaction of WTe₂ and I₂ in a vacuum sealed ampoule. The crystals of 1 belong to the triclinic crystal symmetry, space group P-1, Z = 4, a = = 7.9291(3) Å, b = 10.7695(4) Å, c = 10.8117(4) Å, α = 85.668(1)°, β = 71.772(1)°, γ = 71.559(1)°, V = = 831.60(5) ų, d_calc = 5.523 g/cm³. The structure of 1 consists of tetrameric W₄I₁₆ molecules in which W atoms are in a distorted octahedral environment formed by I atoms.