Structure D 2000Neutron Structural and Vibrational Studies of Dipotassium Selenate Tellurate.-Single crystals of K2SeO4·Te(OH)6 are synthesized by slow evaporation of an aqueous solution of H6TeO6 and K2SeO4 at room temperature. The compound crystallizes in the monoclinic space group C2/c with Z = 4 (single crystal neutron diffraction). The structure consists of alternating layers of octahedra and tetrahedra linked by a network of hydrogen bonds. The compound is further characterized by Raman scattering between 300 and 620 K. -(DAMMAK*, M.; MHIRI, T.; COUSSON, A.; J.