Tungsten(VI) oxytetrachloride
From Wikipedia, the free encyclopedia
| Tungsten(VI) oxytetrachloride | ||
|---|---|---|
 | ||
| Other names Tungsten(IV) choride oxide | ||
| Identifiers | ||
| CAS number | 13520-78-0  | |
| PubChem | 19596810 | |
| Jmol-3D images | {{#if:[O-2].[Cl-].[Cl-].[Cl-].[Cl-].[W]|Image 1 | |
| ||
| ||
| Properties | ||
| Molecular formula | WOCl4 | |
| Molar mass | 341.651 g/mol | |
| Appearance | red crystals | |
| Density | 11.92 g/cm³ | |
| Melting point | 211 °C; 412 °F; 484 K | |
| Boiling point | 227.55 °C; 441.59 °F; 500.70 K | |
| Solubility in water | reacts | |
| Hazards | ||
| EU classification | not listed | |
(verify) (what is: / ?)Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa) | ||
| Infobox references | ||
Tungsten(VI) oxytetrachloride is the inorganic compound with the formula WOCl4. This diamagnetic solid is used to prepare other complexes of tungsten. The orange-coloured compound is soluble in nonpolar solvents but it reacts with alcohols and water and forms adducts with Lewis bases. The solid consists of weakly associated square pyramidal monomers.
WOCl4 is prepared from tungsten trioxide:[1]
Reactions
WOCl4 is Lewis acidic. It is a precursor to catalysts used for polymerization of alkynes.[2]
References
- ↑ Nielson, A. J.; Andersen, R. A. (1985). Tungsten and Molybdenum Tetrachloride Oxides. "Inorganic Syntheses". Inorg. Synth. Inorganic Syntheses (New York: Wiley) 23: 195–198. doi:10.1002/9780470132548.ch41. ISBN 0-471-81873-9.
- ↑ Hayano, S.; Masuda, T. Living Polymerization of [o-(Trifluoromethyl)phenyl]acetylene by WOCl4-Based Catalysts such as WOCl4-n-Bu4Sn-t-BuOH (1:1:1) Macromolecules 1999, 32, 7344-7348.
| ||||||||||||||||||||||
This article is issued from Wikipedia. The text is available under the Creative Commons Attribution/Share Alike; additional terms may apply for the media files.