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373710

Sigma-Aldrich

Molybdenum(VI) dichloride dioxide

Synonym(s):

Dichlorodioxomolybdenum

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About This Item

Linear Formula:
MoO2Cl2
CAS Number:
13637-68-8
Molecular Weight:
198.84
MDL number:
MFCD00014225
UNSPSC Code:
12352302
PubChem Substance ID:
24863255
NACRES:
NA.23

form

flakes

concentration

34.4-36.9% chloride (silver nitrate titration)

density

3.31 g/mL at 25 °C (lit.)

application(s)

battery manufacturing

SMILES string

Cl[Mo](Cl)(=O)=O

InChI

1S/2ClH.Mo.2O/h2*1H;;;/q;;+2;;/p-2

InChI key

JCFNAADCQWXIJD-UHFFFAOYSA-L

General description

Molybdenum(VI) dichloride dioxide is an oxo-halide of molybdenum widely used as a catalyst for various organic transformations. It is an oxo-transfer catalyst that has the ability to promote oxidation as well as reduction reactions. It can also be used as a chemical vapor deposition(CVD) precursor to synthesize various Mo-based nanomaterials.

Application

Molybdenum(VI) dichloride dioxide can be used as a catalyst:
  • For thioacetalization of heterocyclic, aromatic, and aliphatic compounds.
  • To synthesize mono-, di-, tri-, and tetracarbamates from alcohols and aromatic or aliphatic isocyanates.
  • For stereospecific deoxygenation of epoxides to alkenes.
  • For the synthesis of dihydropyrimidinone/thione and polyhydroquinoline derivatives via a Biginelli and Hantzsch reaction.
It can also be used as a precursor to synthesize MoO2 nanoparticles.

Pictograms

Corrosion
GHS05

Signal Word

Danger

Hazard Statements

H314

Hazard Classifications

Skin Corr. 1B

Storage Class Code

8B - Non-combustible corrosive hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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MoO2Cl2 catalyzed efficient synthesis of functionalized 3,4-dihydropyrimidin-2 (1 H)-ones/thiones and polyhydroquinolines: recyclability, fluorescence and biological studies
Sravanthi Devi Guggilapu, et al.
Journal of Chemistry, 40, 838-843 (2016)
Interplay between size and crystal structure of molybdenum dioxide nanoparticles?synthesis, growth mechanism, and electrochemical performance
Dorota Koziej, et al.
Small, 7, 377-387 (2011)
Mild and high-yielding molybdenum (VI) dichloride dioxide-catalyzed formation of mono-, di-, tri-, and tetracarbamates from alcohols and aromatic or aliphatic isocyanates
Christian Stock, et al.
advanced synthesis and catalysis, 354, 2309-2330 (2012)
Molybdenum pentachloride (MoCl5) or molybdenum dichloride dioxide (MoO2Cl2): advanced catalysts for thioacetalization of heterocyclic, aromatic and aliphatic compounds
Shyamaprosad Goswami and Annada C. Maity
Tetrahedron Letters, 49, 3092-3096 (2008)
Molybdenum-Catalyzed Stereospecific Deoxygenation of Epoxides to Alkenes
Sobi Asako, et al.
advanced synthesis and catalysis, 358, 3966-3970 (2016)

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