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755737

Sigma-Aldrich

Tungsten hexacarbonyl

packaged for use in deposition systems

Synonym(s):

Tungsten hexacarbonyl, Hexacarbonyltungsten (0), Tungsten carbonyl, Tungstenhexacarbonyl

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About This Item

Linear Formula:
W(CO)6
CAS Number:
14040-11-0
Molecular Weight:
351.90
EC Number:
237-880-2
MDL number:
MFCD00011462
UNSPSC Code:
12352103
PubChem Substance ID:
329766135
NACRES:
NA.23

vapor density

12.1 (vs air)

vapor pressure

1.2 mmHg ( 67 °C)

Assay

99.9% (trace metals analysis)

form

solid

purified by

sublimation

reaction suitability

core: tungsten

mp

150 °C (lit.)

density

2.65 g/mL at 25 °C (lit.)

SMILES string

[W].[C-]#[O+].[C-]#[O+].[C-]#[O+].[C-]#[O+].[C-]#[O+].[C-]#[O+]

InChI

1S/6CO.W/c6*1-2;

InChI key

FQNHWXHRAUXLFU-UHFFFAOYSA-N

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Application

Tumgstenhexacarbonyl is a volatile, air stable precursor of Tungsten(0), widely used in ALD and CVD techniques.

Pictograms

Skull and crossbones
GHS06

Signal Word

Danger

Hazard Statements

H301 + H311 + H331

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral

Storage Class Code

6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

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Maruyama, T., Arai, S.
Journal of the Electrochemical Society, 4, 1021-1021 (1994)
Mulders, J. J. L.; Belova, L. M.; Riazanova, A.
Nanotechnology, 22, 055302/1-055302/1 (2011)
Seth M Dumbris et al.
The Journal of organic chemistry, 74(22), 8862-8865 (2009-10-30)
Hydantoins can be synthesized from the corresponding amino amides employing oxidative catalytic carbonylation using W(CO)(6) as the catalyst, I(2) as the oxidant, CO as the carbonyl source, and DBU as base. Secondary amides afford the hydantoins in good to excellent
Keisha-Gay Hylton et al.
The Journal of organic chemistry, 68(4), 1615-1617 (2003-02-15)
W(CO)(6)-catalyzed carbonylation provides an alternative to phosgene or phosgene derivatives such as 1,1-carbonyldiimidazole (CDI) for the conversion of amines to ureas. As an illustration, the core structure of the HIV protease inhibitors DMP 323 and DMP 450 has been prepared
Sarah M Eichfeld et al.
ACS nano, 9(2), 2080-2087 (2015-01-28)
Tungsten diselenide (WSe2) is a two-dimensional material that is of interest for next-generation electronic and optoelectronic devices due to its direct bandgap of 1.65 eV in the monolayer form and excellent transport properties. However, technologies based on this 2D material
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