Preparation and structure of azidopentafluorotungsten(VI)

Abstract

Azidotrimethylsilane reacts with excess of WF₆ to give the title compound. This yellow compound, which decomposes explosively at 63 °C, has a monoclinic unit cell with a= 5.240(8), b= 9.662(12), c= 10.835(8)Å, β= 102.4(1)°, space group P2₁/c, and Z= 4. Using 1 122 X-ray data collected on a two-circle diffractometer, refinement converged at R 0.076. The average W–F distance is 1.836 Å; other distances are W–N(1) 1.584(21), N(1)–N(2) 1.254(31), and N(2)–N(3) 1.102(36)Å. The W–N(1)–N(2) angle is 157.4(23)°.