Wolframhexacarbonyl

Base Information

• Chemical Name: Wolframhexacarbonyl
• CAS No.: 14040-11-0
• Molecular Formula: C6O6W
• Molecular Weight: 351.912
• Hs Code.: 29310095
• Mol file: 14040-11-0.mol

Synonyms:Wolframhexacarbonyl;CS-0044576;FT-0696816;D94507;J-007385;Wolframhexacarbonyl,carbon monooxide- tungsten(6:1), Hexacarbonyl tungsten,;hexakis(carbon monoxide) tungsten, Tungsten carbonyl (W(CO)6), Tungsten hexacarbonyl

Chemical Property of Wolframhexacarbonyl

Chemical Property:

• Appearance/Colour: white crystalline powder
• Vapor Pressure: 1.2 mm Hg ( 67 °C)
• Melting Point: 150 °C(lit.)
• Boiling Point: 175 °C
• Flash Point: 200°C
• PSA: 0.00000
• Density: 2.65 g/mL at 25 °C(lit.)
• LogP: -1.24800
• Storage Temp.: Store below +30°C.
• Water Solubility.: insoluble
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 6
• Rotatable Bond Count: 0
• Exact Mass: 351.920421
• Heavy Atom Count: 13
• Complexity: 10

Purity/Quality:

99% ^*data from raw suppliers

Tungsten carbonyl, 99% (<0.3%-Mo) ^*data from reagent suppliers

Safty Information:

• Pictogram(s): T
• Hazard Codes: T
• Statements: 23/24/25
• Safety Statements: 22-24/25-45-38-36/37/39-28A-36/37

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Canonical SMILES: [C-]#[O+].[C-]#[O+].[C-]#[O+].[C-]#[O+].[C-]#[O+].[C-]#[O+].[W]
• description: Tungsten hexacarbonyl is easily vaporized and decomposed by the electron beam — providing a convenient source of tungsten atoms. This product is widely used in electron beam-induced deposition processes, it is also used as a precursor to catalysts for alkene metathesis and to desulfurize organosulfur compounds. It is relatively air-stable, and it is sparingly soluble in non-polar organic solvents. W(CO)6 reactions begin with the displacement of some of its CO ligands. Similar to Mo(CO)6 in behavior, W(CO)6 typically forms compounds that are kinetically more robust. Synthesis of this product are reported (see the links below).
• uses: Tungsten hexacarbonyl, [W(CO)6] may be used as a precursor for the deposition of WO3-x films, which may be used as gas sensors for the detection of NO2.Precursor to a Fischer carbene complex which reduces Pd(II) to nanoparticulate Pd(0) that is catalytically active in Hiyama cross-coupling.
• Physical properties: White crystalline solid; density 2.65 g/cm3; decomposes at 170°C without melting; sublimes; vapor pressure 0.1 torr at 20°C; insoluble in water; soluble in most organic solvents.
• Uses: Tungsten Hexacarbonyl is an useful catalyst in carbonyation amines, as well as an stable source of tungsten atoms through electron beam-induced depostion. Tungsten coatings on base metals by deposition and decomposition of the carbonyl.

Technology Process of Wolframhexacarbonyl

There total 330 articles about Wolframhexacarbonyl which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 96.0%

(CO)5WC(OEt)SiPh3 → tungsten hexacarbonyl (14040-11-0) + triphenylhydroxysilane (791-31-1)

Guidance literature:

With carbon monoxide; In diethyl ether; High Pressure; under dried N2; addn. of N-methylbenzimine at 25°C to a soln. of W-complex (CO-pressure: 50 atm); stirring for 2 d at room temp., then for 1-2 h at 80-100°C; vac.-evapn. until dryness; residue dissolved in petroleum ether/ether; chromy. (silica gel/petroleum ether/ether); recrystn. from petroleum ether; elem. anal.;

DOI:10.1016/0022-328X(89)85046-6

Reference yield: 90.0%

(CO)5WC(OEt)SiPh3 + benzylidene phenylamine (538-51-2) → tungsten hexacarbonyl (14040-11-0) + CH(C6H5)CSi(C6H5)3(C2H5O)CON(C6H5) + CH(C6H5)CSi(C6H5)3(C2H5O)CON(C6H5) + triphenylhydroxysilane (791-31-1)

Guidance literature:

With carbon monoxide; In diethyl ether; High Pressure; under dried N2; addn. of N-methylbenzimine at 25°C to a soln. of W-complex (CO-pressure: 50 atm); stirring for 2 d at room temp., then for 1-2 h at 80-100°C; vac.-evapn. until dryness; residue dissolved in petroleum ether/ether; chromy. (silica gel/petroleum ether/ether); recrystn. from petroleum ether; elem. anal.;

DOI:10.1016/0022-328X(89)85046-6

Reference yield: 83.0%

2Na(1+)*W(CO)5(2-) = Na2[W(CO)5] (54099-82-0) + carbon dioxide (124-38-9,18923-20-1) → tungsten hexacarbonyl (14040-11-0) + sodium carbonate (497-19-8)

Guidance literature:

In tetrahydrofuran; reductive disproportionation; mechanism discussed;; IR;;

DOI:10.1021/ja00244a017

upstream raw materials:

tungsten pentacarbonyl tetrahydrofuran

Iodoacetic acid

(W(CO)5((CH₃)3SiCH₂SCH₂Si(CH₃)3))

(W(CO)5((CH₃)3SiCH₂SeCH₂Si(CH₃)3))

Downstream raw materials:

tetracarbonyl-bis(diphenylphosphino)methane-tungsten(0)

(tetraphenylphosphonium)[CpW(CO)3]

(tetraphenylphosphonium)[Cp(*)W(CO)3]

tungsten hexaphenoxide

Refernces

• 1、 Darensbourg, Donald J.,Klausmeyer, Kevin K.,Reibenspies, Joseph H.. "CO-Labilizing Ability of the Fluoride Ligand in Tungsten(0) Carbonyl Fluorides: X-ray Structure of [Et4N]3[W2(CO)6F3]". . . Retrieved 1995.
• 2、 Szymanska-Buzar, Teresa,Kern, Krystyna,Downs, Anthony J.,Greene, Timothy M.,Morris, Leigh J.,Parsons, Simon. "Crystal structure of trans- [W(CO)4(n2-C2H4)2] and IR 1H NMR studies of the reactions of this and related ethene carbonyl complexes of tungsten(0), [W(CO)(n)(n2-C2H4)6-(n)] (n = 3-5)". . p. 407 - 416. Retrieved 1999.
• 3、 Dreher, Cornelia,Zabel, Manfred,Bodensteiner, Michael,Scheer, Manfred. "As a source of semi-interstitial phosphorus ligands in cobalt carbonyl clusters". . p. 5187 - 5191. Retrieved 2010.
• 4、 Zheng, Youfeng,Wang, Wenhua,Lin, Jingu,She, Yongbo,Fu, Ke-Jian. "". . p. 148 - 152. Retrieved 1993.
• 5、 Bo?a, Dilek Ay?e,?zkar, Saim. "Carbonyltungsten(0) complexes of acryloylferrocene: Synthesis and characterization". . p. 3293 - 3297. Retrieved 2006.
• 6、 Schubert, Ulrich,Hepp, Wolfgang,Müller, Johannes. "Silicon-containing carbene complexes. 6. Stable 16-electron carbonyl carbene complexes of tungsten(0), molybdenum(0), and chromium(0)". . p. 173 - 175. Retrieved 1986.
• 7、 G?ttker-Schnetmann, Inigo,Aumann, Rudolf,Bergander, Klaus. "Organic synthesis via transition metal complexes. 112. Reactivity enhancement of group VI Fischer carbene complexes by copper and rhodium catalysts: Experimental proof of a carbene rhodium complex as an intermediate". . p. 3574 - 3581. Retrieved 2001.
• 8、 Ishikawa, Yo-ichi,Hackett, Peter A.,Rayner, David M.. "Excimer Laser Photolysis of Gas-Phase W(CO)6". . p. 3863 - 3869. Retrieved 1988.
• 9、 Adams, Richard D.,Babin, James E.,Jin-Guu Wang. "". . p. 2351 - 2358. Retrieved 1989.
• 10、 Toledano, Cecilio Alvarez,Levisalles, Jacques,Rudler, Michele,Rudler, Henri,Daran, Jean-Claude,Jeannin, Yves. "SYNTHESE ET ETUDE STRUCTURALE D'UN COMPLEXE MONONUCLEAIRE DU TUNGSTENE PORTANT A LA FOIS UN GROUPEMENT ALKYLIDENE ET UNE DOUBLE LIAISON". . p. C7 - C11. Retrieved 1982.