Tetragonal polymorphic modification of tetrakis­(N,N‐diethyl­di­thio­carbam­ato‐S,S′)­tellurium(IV)

During an investigation of the W/Te/Br₂ system, we prepared crystals of the title compound, C₂₀H₄₀N₄S₈Te, from aceto­nitrile solution by slow addition of diethyl ether. It appeared to be a new tetragonal modification. The calculated density of the tetragonal modification (1.513 Mg m^?3) is slightly greater than found for the known orthorhombic modification (1.46 Mg m^?3). The bond distances and angles are practically the same.