Preparation and structure of [(C6H5)4P]3[NbTe10].cntdot.DMF: a soluble tellurium cluster containing an interstitial transition metal atom

Template synthesis of [Cr(en)3][Te6]: a novel polytelluride with a framework structure, whose cavities are filled with a [Cr(en)3]3+ template

“…20 The shortest Te-Te distances of 3.376(1) Å between the layers are much shorter than the sum of the van der Waals radii of 4.4 Å 19 and comparable with the Te-Te distances in the polytelluride cluster [NbTe 10 ] 32 . 21 According to the results of an MO study these values correspond to significant Te-Te bonding interaction. 22 The computed Pauling bond order is 0.11.…”

“…10 23 bar). After 7 days of heating at 200 °C, the tube was cooled at 1 °C min 21 and opened. Black cubic crystals could be isolated from the colourless solution.…”

“…The crystals were washed with tetrahydrofuran and dried in vacuo. Yield: 127 mg (63.3%), satisfactory elemental analysis, IR data: (KBr pellet) 3397m, 3480m, 3030s, 2912s, 2870s, 1547s, 1447s cm 21 .…”

Synthesis and Characterization of Ba2SnTe5: A New Zintl Phase Containing Unique One-Dimensional Chains of (SnTe3)2- and Dimeric Units of (Te2)2-

“…Syntheses of solid-state chalcogenides at intermediate (200−500 °C) and low (<200 °C) temperatures have led to the discovery of many novel compounds having unique structures and interesting properties. Synthetic routes that have been developed and employed in the crystal growth of these materials include crystallization from alkali-metal polychalcogenide salts (fluxes), reactions involving nonaqueous solvents, solvent extraction of intermetallic phases, electrochemical dissolution of alloy electrodes, and hydro(solvo)thermal synthesis …”

Tris(tetraphenylphosphonium) Decatelluriumtantalide Dimethylformamide (1/1), a Tetraphenylphosphonium Salt of TaTe103−

“…The title compound, (I), is isomorphous with that of the niobium derivative (Homer & Kolis, 1988 The structure of the anion is similar to that of P453 (Leung & Waser, 1957) and p3- (Dahlmann & von Schnering, 1972), but with ditelluride rather than monotelluride bridges linking the apex and base. To the best of our knowledge, this is the only isolated tantalum-tellurium anion that has been structurally characterized, but the TamTe distances fall within the ranges of known tantalum tellurides, TaTe2 (Brown, 1966) and TaTe4 (Bjerkelund & Kjekshus, 1964), and are considerably longer than the value of 2.568 (1),4, found for a terminal TamTe bond in [TeTa{(Me3SiNCH2CH2)3N}] (Christou & Arnold, 1993).…”