Molybdenum(II) acetate
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Other names
Dimolybdenum tetraacetate,
tetra(aceto) dimolybdenum, Molybdenum(II) acetate dimer | |
Identifiers | |
3D model (
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ChemSpider | |
ECHA InfoCard
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100.034.611 |
EC Number |
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PubChem CID
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CompTox Dashboard (EPA)
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Properties | |
C8H12Mo2O8 | |
Molar mass | 428.1010 g/mol |
Appearance | Yellow solids |
Boiling point | decomposes |
not soluble | |
Hazards | |
GHS labelling:[1] | |
Warning | |
H315, H319 | |
P222, P231, P235, P305+P351+P338, P422, P501 | |
Safety data sheet (SDS) | External MSDS |
Related compounds | |
Related compounds
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Copper(II) acetate Chromium(II) acetate |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Molybdenum(II) acetate is a
Structure
Like several other
Preparation
Mo2(O2CCH3)4 is prepared by treating molybdenum hexacarbonyl (Mo(CO)6) with acetic acid. The process strips CO ligands from the hexacarbonyl and results in the oxidation of Mo(0) to Mo(II).[5][6]
- 2 Mo(CO)6 + 4 HO2CCH3 → Mo2(O2CCH3)4 + 12 CO + 2 H2
Trinuclear clusters are byproducts.[7]
The reaction of HO2CCH3 and Mo(CO)6 was first investigated by Bannister et al. in 1960. At the time, quadruple metal-metal bonds had not yet been discovered, so these authors proposed that Mo(O2CCH3)2 was tetrahedral.[8][9] This perspective changed with Mason's characterization.[10]
Applications
Mo2(O2CCH3)4 is generally used as an intermediate compound in a process to form other quadruply bonded molybdenum compounds.[2] The acetate ligands can be replaced to give new compounds such as [Mo2Cl8]4− and Mo2Cl4[P(C4H9)3]4.[2][11][12]
References
- ^ "Molybdenum (CAS Number 14221-06-8) : Strem Product Catalog". www.strem.com. Retrieved 27 December 2021.
- ^ ISBN 0-935702-48-2
- .
- ^ Blaudeau, J. P.; Pitzer, R. M. “ Ab Initio Studies of Ligand Effects on the Metal-Metal Bond in Dimolybdenum Complexes” J.Phys. Chem. 1994, vol. 98, pp. 4575-4579.
- ^ Pence, L. E.; Weisgerber, A. M.; Maounis, F.A.; “Synthesis of Molybdenum-Molybdenum Quadruple Bonds” J. Chem. Educ., 1999, vol. 76, 404-405.
- ^ Bino, A.; Cotton, F.A.; Dori, A.; J. Am. Chem. Soc. 1981, vol. 103, pp. 243-244. “A Aqueous New Chemistry of Organometallic, Trinuclear Cluster Compounds of Molybdenum”.
- ^ Bannister, E.; Wikinson, G. “Molybdenum(II) carboxylates” Chem. Ind. 1960, 319.
- ^ Handa, M.; Mikuriya, M.; Kotera, T.; Yamada, K.; Nakso, T.; Matsumoto, H.; Kasuga, K. “Linear Chain Compounds of Molybdenum(II) Acetate Linked by Pyazine, 4,4’-Bipyridine, and 1,4- Diazabicyclo[2.2.2]octane” Bull. Chem. Soc. Jpn., 1995,68, 2567-2572.