Triphenyltelluronium(IV) bromide acetone hemisolvate
Sari M. Närhi, Raija Oilunkaniemi, Risto S. Laitinen
Acta Crystallographica Section E · 2013
doi:10.1107/s160053681302816x (opens in a new tab)
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Abstract
The asymmetric unit of the title compound, 2C18H15Te+·2Br−·C3H6O or Ph3TeBr·0.5Me2CO, contains two crystallographically independent triphenyltelluronium cations, two bromide anions, and one disordered [site-occupancy ratio = 0.581 (7):0.419 (7)] solvent molecule. Interionic Te...Br interactions connect the cations and anions into a tetrameric step-like structure. The primary coordination spheres of both Te atoms are TeC3 trigonal pyramids: three short secondary tellurium–bromine interactions expand the coordination geometry of one of the Te atoms to an octahedron. While the other Te atom shows only two Te...Br secondary bonding interactions, it is also six-coordinated due to a Te...π interaction [3.769 (2) Å] with one of the phenyl rings of the adjacent cation.
Abstract licence: CC BY
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