Wa. Flomer et al., TRIS(TETRAPHENYLPHOSPHONIUM) DECATELLURIUMTANTALIDE DIMETHYLFORMAMIDE(1 1), A TETRAPHENYLPHOSPHONIUM SALT OF TATE103-/, Acta crystallographica. Section C, Crystal structure communications, 52, 1996, pp. 2445-2448
The TaTe103- anion of the title compound, (C24H20P)(3)[TaTe10].C3H7NO,
consists of an extended 'birdcage' of Te atoms containing an intersti
tial Ta atom. The Ta atom is seven-coordinate, with Ta-Te distances ra
nging from 2.753 (3) to 2.870 (3) Angstrom, arranged in a distorted ca
pped trigonal prism geometry.