Darstellung und Kristallstruktur von Tris[1,3-bis(phenyltriazenido)benzol]-di-thallium(III)

Synthesis and Crystal Structure of Tris[1,3-bis(phenyltriazenido)benzene]-di-Thallium(III) Tris[1,3-bis(phenyltriazenido)benzene]-di-thallium(III) is formed by the reaction of di-sodium-1,3-bis(phenyltriazenido)benzene with thallium(I)-sulfate in a THF/H₂O mixture in the presence of oxygen. The compound crystallizes in the triclinic space group P1 1 with the lattice parameters a = 1368.8(2), b = 1539.3(2), c = 1676.0(3) pm, α = 106.04(3)°, β = 90.50(3)°, γ = 109.94(3)° and two formula units in the unit cell. The complex consists of two Tl atoms and three ligands, of which each N₃-unit acts as bidentate chelating group. The coordination sphere of Tl is trigonal prismatic with a coordination number of 6. The distances Tl? N range from 228 to 244 pm.