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organic compounds
In the title compound, [TeBr2(C4H9)(C3H4BrO)] or C7H13Br3OTe, the primary geometry about the TeIV atom is a pseudo-trigonal-bipyramidal arrangement with axial bromines and one equatorial position vacant. If an intermolecular, secondary TeO bond of 3.041 (5) Å, trans to the Te—C(vinylic) bond, is taken into consideration, the structure may be regarded as pseudo-octahedral. Distances and angles are: Te–Br 2.7295 (10) and 2.6115 (10), Te–C 2.092 (6) and 2.134 (7) Å; Br–Te–Br 176.59 (3), Br–Te–C 88.87 (19), 89.0 (3), 89.65 (19) and 88.2 (3), C–Te–C 99.7 (3)°. The lattice is formed by hydrogen-bonded centrosymmetric dimers [OBr = 3.399 (6) Å], which, in turn, are linked by the intermolecular secondary TeO bond.