Tungsten(VI) oxytetrachloride
 | |
| Names | |
|---|---|
| Other names
Tungsten(IV) chloride oxide | |
| Identifiers | |
13520-78-0  | |
| 3D model (Jmol) | Interactive image |
| ECHA InfoCard | 100.033.497 |
| PubChem | 19596810 |
| |
| |
| Properties | |
| 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) |
| reacts | |
| Solubility | soluble in benzene and CS2 |
| Hazards | |
| EU classification (DSD) |
not listed |
| Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
verify (what is  ?) | |
| 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.[1] The compound is classified as an oxyhalide.
WOCl4 is prepared from tungsten trioxide:[2]
Reactions
WOCl4 is Lewis acidic. It is a precursor to catalysts used for polymerization of alkynes.[3]
References
- ↑ Hess, H.; Hartung, H. (1966). "Die Kristallstruktur von Wolframoxidchlorid WOCl4 und Wolframoxidbromid WOBr4". Z. anorg. allgem. Chem. 34: 157–166. doi:10.1002/zaac.19663440306.
- ↑ Nielson, A. J. (1985). "Tungsten and Molybdenum Tetrachloride Oxides". Inorg. Synth. 23: 195–198. doi:10.1002/9780470132548.ch41.
- ↑ Hayano, S.; Masuda, T. (1999). "Living Polymerization of [o-(Trifluoromethyl)phenyl]acetylene by WOCl4-Based Catalysts such as WOCl4-n-Bu4Sn-t-BuOH (1:1:1)". Macromolecules. 32: 7344–7348. doi:10.1002/zaac.19663440306.
This article is issued from Wikipedia - version of the 11/2/2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.