Tetra-t-butoxide tungsten oxide
Synonym: WO(O-t-Bu)4, Tetrakis(2-methyl-2-
CAS Number 58832-09-0
Tetra-t-butoxide tungsten oxide, also known as WO(O-t-Bu)₄ or Tetrakis(2-methyl-2-propanolato)oxotungsten, is an organotungsten compound with the molecular formula C₁₆H₃₆O₅W and a molecular weight of 492.31 g/mol. Typically appearing as white crystals, this compound has a high purity level of 97.5%, verified by elemental analysis. Structurally, tetra-t-butoxide tungsten oxide features a tungsten atom in the +6 oxidation state, coordinated to four tert-butoxide (t-BuO) ligands and a central oxo group. This configuration enhances stability while maintaining reactivity in decomposition or oxidation processes. Sensitive to air and moisture, it requires storage in a tightly sealed container under inert conditions to maintain its integrity.
Applications in Organic Synthesis and Catalysis
Tetra-t-butoxide tungsten oxide is valued in both organic and inorganic synthesis, especially as a precursor for tungsten-containing compounds. The presence of tert-butoxide groups enhances its reactivity, making it highly useful in catalytic reactions within polymerization and advanced material development. Its role as a precursor and catalyst is essential in fields that demand stability paired with high reactivity, such as material science and polymer manufacturing.
Safety and Handling Recommendations
This compound is classified as a flammable solid, necessitating careful handling. Its sensitivity to air and moisture requires that it be stored away from ignition sources in a controlled environment. Standard safety measures, including the use of gloves, eye protection, and ventilation, are recommended to minimize exposure. Due to its volatility, it sublimates at 60°C under reduced pressure (0.01 Torr), which highlights the need for controlled storage and handling.
Industrial and Laboratory Significance
In both industrial and laboratory settings, tetra-t-butoxide tungsten oxide is crucial for producing tungsten oxo compounds and enabling specialized catalytic processes. Its structural composition and reactivity make it particularly effective for complex syntheses, providing stability and adaptability for high-performance applications in material science and catalysis.
Tetra-t-butoxide tungsten oxide is used as a precursor for the preparation of electrochromic tungsten oxide and it doped derivative nanomaterials using sol-gel or vapor deposition methods. See links below
Ereztech manufactures and sells this product in small and bulk volumes. Glass ampules, bottles or metal ampules or bubblers are available for packaging. For additional analytical information or details about purchasing W2090 contact us at sales@ereztech.com
Safety information
| UN | 1325 |
| Hazardous class | 4.1 |
| Packing group | II |
| Pictograms |   |
| Signal word | WARNING |
| Hazard statements | H228-H315-H319-H335 |
| Precautionary statements | P210-P240-P241-P261-P264-P271-P280-P302+P352-P304+P340-P305+P351+P338-P312-P332+P313-P337+P313-P362-P370+P378 |
| Transport description | Flammable solid, n.o.s. (Tetra-t- butoxide tungsten oxide) |
| In TSCA registry | No (sold for research and development usage only) |
First Aid Measures
| General advice | Consult a physician. Show this safety data sheet to the doctor in attendance. Move out of the dangerous area. |
| Eye contact | Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician. |
| Skin contact | Wash off with soap and plenty of water. Consult a physician. |
| Inhalation | If breathed in, move person into the fresh air. If not breathing, give artificial respiration. Consult a physician. |
| If swallowed | Do NOT induce vomiting. Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician. |
Certificates of Analysis (CoA)
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Known applications and external links
- Sun Z, Zhao Y, Prior TJ, Elsegood MRJ, Wang K, Xing T, Redshaw C. Mono-oxo molybdenum(vi) and tungsten(vi) complexes bearing chelating aryloxides: synthesis, structure and ring opening polymerization of cyclic esters
- Jeffrey H. Wengrovius and Richard R. Schrock Synthesis and Characterization of Tungsten Oxo Neopentyiidene Complexes. Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02 139 Received June 25, 1981
- Dmitry V. Peryshkov and Richard R. Schrock describe the preparation of W(═O)(OtBu)4 from W(═O)Cl4 and Li(OtBu). Organometallics 2012, 31, 7278-7286.
With Tetra-t-butoxide tungsten oxide other customers often ask:
- Tungsten hexacarbonyl
- Bis(tert-butylimino)bis(dimethylamino)tungsten(VI)
- Bis(ethylcyclopentadienyl)tungsten dihydride
Ereztech synthesizes and sells additional W-compounds.
To purchase W2090 contact us at sales@ereztech.com
