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227749

Sigma-Aldrich

Bis(acetylacetonato)dioxomolybdenum(VI)

Synonym(s):

MoO2(acac)2, Molybdenum diacetylacetonate dioxide, Molybdenum dioxide bis(acetylacetonate), Molybdenum dioxydiacetylacetonate, Molybdenyl acetylacetonate

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About This Item

Linear Formula:
[CH3COCH=C(O-)CH3]2MoO2
CAS Number:
Molecular Weight:
326.15
EC Number:
MDL number:
UNSPSC Code:
12161600
PubChem Substance ID:
NACRES:
NA.22
Pricing and availability is not currently available.

form

powder

reaction suitability

core: molybdenum
reagent type: catalyst

mp

184 °C (dec.) (lit.)

storage temp.

2-8°C

SMILES string

CC(=O)\C=C(\C)O[Mo](=O)(=O)O\C(C)=C/C(C)=O

InChI

1S/2C5H8O2.Mo.2O/c2*1-4(6)3-5(2)7;;;/h2*3,6H,1-2H3;;;/q;;+2;;/p-2/b2*4-3-;;;

InChI key

SKMUJBBRXZPAJY-VGKOASNMSA-L

General description

Bis(acetylacetonato)dioxomolybdenum(VI) is used as a starting material and catalyst for oxidative transformation reactions.[1][2]

Application

Bis(acetylacetonato)dioxomolybdenum(VI) can be used:
  • As a starting material to synthesize dioxomolybdenum(VI) Schiff base complexes, applicable as catalysts in the oxidation of alcohols using H2O2.[3]
  • To prepare graphene oxide supported heterogeneous molybdenum catalysts for epoxidation of olefins.[4]
  • As a catalyst in the etherification and thio-etherification reactions of thiols and alcohols.[5]

Pictograms

Health hazardExclamation mark

Signal Word

Warning

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Carc. 2 - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Jie Wang et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 26(51), 11841-11850 (2020-05-28)
Pyrite FeS2 as a high-capacity electrode material for lithium-ion batteries (LIBs) is hindered by its unstable cycling performance owing to the large volume change and irreversible phase segregation from coarsening of Fe. Here, the beneficial microstructure evolution in MoS2 -modified
Wei Wang et al.
ACS nano, 10(11), 10106-10116 (2016-11-05)
Electrode materials based on conversion reactions with lithium ions generally show much higher energy density. One of the main challenges in the design of these electrode materials is to improve initial Coulombic efficiency and alleviate the volume changes during the
Molybdenum (VI)-catalyzed dehydrative construction of CO and CS bonds formation via etherification and thioetherification of alcohols and thiols
Singh RR, et al.
Molecular Catalysis, 492(1), 110954-110954 (2020)
Dutta, S.k. et al.
Inorganic Chemistry, 36, 2517-2517 (1997)
Silica-supported molybdenum complex: a novel, selective and reusable organic--inorganic hybrid catalyst for eco-friendly oxidation of sulfides and olefins
Sharma RK, et al.
Polyhedron, 45(1), 86-93 (2012)

Questions

1–2 of 2 Questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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