title: Tetra-bromido-[4-(triphenyl-phosphanyl-oxy)but-yl]tellurium acetonitrile monosolvate.
abstract: In the title compound, [TeBr(4)(C(22)H(23)OP)]·CH(3)CN, the Te atom exhibits a square-pyramidal coordination with an apical Te-C bond and four basal Te-Br bonds. The conformation of the aliphatic C-C-C-C chain is gauche [torsion angle = -67.7 (8)°]. A weak C-H⋯Br inter-action helps to establish the conformation. In the crystal, there is a weak secondary bonding inter-action [Te⋯N = 3.456 (11) Å] between the Te atom and the N atom of the solvent mol-ecule, which completes a distorted TeNCBr(4) octa-hedron. Inversion dimers linked by pairs of C-H⋯Br inter-actions are also observed.
authors: Department of Chemistry, PO Box 3000, FI-90014 University of Oulu,  Finland.
authors: Sari M
authors: SM
authors: Närhi
authors: Raija
authors: R
authors: Oilunkaniemi
authors: Risto S
authors: RS
authors: Laitinen