Die Reaktion von MoCl4mit TeCl4: Synthese und Struktur von Tris(trichlorotelluronium)hexachloromolybdat(IV)-chlorid,([TeCl3]+)3[MoCl6]2-(Cl-) / The Reaction of MoCl4 with TeCl4: Synthesis and Crystal Structure of Tris(trichlorotelluronium)Hexachloromolybdate(IV)Chloride,([TeCl3]+)3[MoCl6]2-[Cl-]
Abstract
Red crystals of (TeCl 3 ) 3 MoCl 6 (Cl) are obtained by reacting MoCl 4 with TeCl 4 in a 1:3 molar ratio in a sealed evacuated ampoule at 170°. The crystal structure determination (orthorhombic, space group Cmc2 1 , a = 1541.6(2), b = 1268.1(1), c = 1180.6(1) pm) shows the presence of trigonal-pyramidal [TeCl 3 ] + ions, octahedral [MoCI 6 ] 2- ions, and isolated Cl - ions. The ions are linked by long Te-Cl bridges resulting in distorted TeCl 6 octahedra. The octahedra are connected by joint edges and corners to zig-zag chains running along the polar c axis.
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