Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 11 (November 2013)


organic compounds



hb7149 scheme

Acta Cryst. (2013). E69, o1666    [ doi:10.1107/S160053681302816X ]

Tri­phenyl­telluronium(IV) bromide acetone hemisolvate

S. M. Närhi, R. Oilunkaniemi and R. S. Laitinen

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...[pi] inter­action [3.769 (2) Å] with one of the phenyl rings of the adjacent cation.


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