“Molybdenum(III) chloride”的意思、由来-开放百科全书

词条

Molybdenum(III) chloride

释义

Synthesis and Structure
THF Complex
References

{{chembox
| verifiedrevid = 428807101
| Name = Molybdenum(III) chloride
| ImageFile =
| ImageSize =
| ImageName = Molybdenum(III) chloride
| IUPACName = Molybdenum(III) chloride
Molybdenum trichloride
| OtherNames =
|Section1={{Chembox Identifiers
| CASNo = 13478-18-7
| CASNo_Ref = {{cascite|correct|CAS}}
| RTECS =
| PubChem = 83515
| ChemSpiderID = 75350
| InChI = 1/3ClH.Mo/h3*1H;/q;;;+3/p-3
| InChIKey = ZSSVQAGPXAAOPV-DFZHHIFOAN
| StdInChI = 1S/3ClH.Mo/h3*1H;/q;;;+3/p-3
| StdInChIKey = ZSSVQAGPXAAOPV-UHFFFAOYSA-K
| EINECS = 236-775-9
| SMILES = Cl[Mo](Cl)Cl
|Section2={{Chembox Properties
| Formula = MoCl₃
| MolarMass = 202.30 g/mol
| Appearance = dark red solid
paramagnetic
| Density = 3.58 g/cm³
| Solubility = insoluble
| SolubleOther = insoluble in ethanol, diethyl ether
| MeltingPtC = 410
| MeltingPt_notes = (decomposes)
| BoilingPtC =
| MagSus = +43.0·10⁻⁶ cm³/mol
|Section3={{Chembox Structure
| Coordination =
| CrystalStruct =
| Dipole =
|Section7={{Chembox Hazards
| ExternalSDS =
| MainHazards =
| RPhrases =
| SPhrases =
| FlashPt = Non-flammable
|Section8={{Chembox Related
| OtherAnions = Molybdenum(III) fluoride
Molybdenum(III) bromide
Molybdenum(III) iodide
| OtherCations = Chromium(IV) chloride
Tungsten(V) chloride
| OtherFunction = Molybdenum(II) chloride
Molybdenum(IV) chloride
Molybdenum(V) chloride
| OtherFunction_label = molybdenum chlorides
}}

Molybdenum(III) chloride is the inorganic compound with the formula MoCl₃.

Synthesis and Structure

The chemical formula of molybdenum trichloride is MoCl3. Molybdenum trichloride is synthesized by the reduction of molybdenum pentachloride with hydrogen. The greatest yield is instead produced by the reduction of pure molybdenum (V) chloride, using anhydrous tin (II) chloride as a reducing agent. This procedure must be performed under a moisture-free and oxygen-free atmosphere of prepurified nitrogen. There are two structures of molybdenum trichloride- alpha (α) and beta (β). The alpha structure is similar to that of aluminum chloride (AlCl3). In this structure, molybdenum has octahedral coordination geometry and exhibits cubic close packing in its crystalline structure. The beta structure, however, exhibits hexagonal close packing.

THF Complex

The THF complex of molybdenum trichloride is trichlorotris(tetrahydrofuran) molybdenum (III), and its chemical formula is C₁₂H₂₄O₃Cl₃Mo. It is synthesized by stirring MoCl₄(THF)₂, THF, and coarse tin powder. It is a light orange solid that is very moisture-sensitive, so it should be stored under dry argon in a freezer and in the dark. The complex has octahedral geometry. The IR spectrum is free of intense bands in the 900–1000 cm⁻¹, a characteristic of molybdenum oxo species.^[1]

References

1. ^{{Cite book|url=https://www.worldcat.org/oclc/86223997|title=Inorganic syntheses. Volume 28, Reagents for transition metal complex and organometallic syntheses|others=Angelici, Robert J.,|isbn=0470132949|location=New York|oclc=86223997}}

Couch, D.E.; Brenner, A. "Preparation of Trichloride and Tetrachloride of Molybdenum." Journal of Research of the National Bureau of Standards- A. Physics and Chemistry 1959, vol 63A.2, 185-88.

Dilworth, J.R.; Richards, R.L. “The Synthesis of Molybdenum and Tungsten Dinitrogen Complexes” Inorganic Syntheses, 1990, vol. 28, 33-43

Hillebrecht, H., et al. "Structural and Scanning Microscopy Studies of Layered Complexes MCl3 (M=Mo, Ru, Cr) and MOCl2 (M=V, Nb, Mo, Ru, Os)." Journal of Alloys and Compounds 1997, vol. 246, 70-79.

Larson, M.L. “Preparation of Some Metal Halides- Anhydrous Molybdenum Halides and Oxide Halides- A Summary” Inorganic Syntheses 1970, vol. 12, 165-178

3 : Molybdenum compounds|Chlorides|Metal halides

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