Tri-phenyl-telluronium(IV) bromide acetone hemisolvate.
The asymmetric unit of the title compound, 2C18H15Te(+)·2Br(-)·C3H6O or Ph3TeBr·0.5Me2CO, contains two crystallographically independent tri-phenyl-telluronium cations, two bromide anions, and one disordered [site-occupancy ratio = 0.581 (7):0.419 (7)] solvent mol-ecule. Inter-ionic Te⋯Br inter-actions connect the cations and anions into a tetra-meric step-like structure. The primary coordination spheres of both Te atoms are TeC3 trigonal pyramids: three short secondary tellurium-bromine inter-actions expand the coordination geometry of one of the Te atoms to an octa-hedron. While the other Te atom shows only two Te⋯Br secondary bonding inter-actions, it is also six-coordinated due to a Te⋯π inter-action [3.769 (2) Å] with one of the phenyl rings of the adjacent cation.
Department of Chemistry, PO Box 3000, FI-90014 University of Oulu, Finland.
Sari M
SM
Närhi
Department of Chemistry, PO Box 3000, FI-90014 University of Oulu, Finland.
Raija
R
Oilunkaniemi
Department of Chemistry, PO Box 3000, FI-90014 University of Oulu, Finland.
Risto S
RS
Laitinen