Abstract

The crystals of the Te IV complex p-CH 3 OC 6 H 4 Te-(Et 2 NCS 2 ) 2 Br are isomorphous with those of the iodine and mixed iodine/bromine analogues previously investigated. The structure is pentagonal bipyramidal at the Te atom with four S atoms [Te-S 2.618-2.721 (1) A] and the Br atom [Te-Br 2.943 (1) A] in equatorial positions. The p-methoxyphenyl group is axial [Te-C 2.147(3) A]. The second axial position is approached by a Br atom of a centrosymmetrically related complex [Te...Br 3.423 (1) A, C-Te...Br 173.1 (1)°] so that the molecules are joined into centrosymmetric pairs by this weak secondary coordination.

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