13814-75-0

Basic information

• Product Name: MOLYBDENUM (VI) TETRACHLORIDE OXIDE
• Synonyms: MOLYBDENUM(VI) OXYCHLORIDE;MOLYBDENUM (VI) TETRACHLORIDE OXIDE;MOLYBDENUM OXYTETRACHLORIDE;Molybdenumtetrachlorideoxidemingreenpowder;Molybdenum(VI)tetrachlorideoxide,min.97%;Molybdenum (VI) tetrachloride oxide, Cl 55.3%;Molybdenum(VI) tetrachloride oxide, min. 97%;Molybdenum tetrachloride oxide
• CAS NO: 13814-75-0
• Molecular Formula: Cl₄MoO
• Molecular Weight: 253.75
• Product Categories: metal oxyhalide
• Mol File: 13814-75-0.mol

Chemical Properties

• Melting Point: 100-101°C
• Appearance: green/Powder
• Storage Temp.: 2-8°C
• Sensitive: air sensitive, moisture sensitiv
• CAS DataBase Reference: MOLYBDENUM (VI) TETRACHLORIDE OXIDE(CAS DataBase Reference)
• NIST Chemistry Reference: MOLYBDENUM (VI) TETRACHLORIDE OXIDE(13814-75-0)
• EPA Substance Registry System: MOLYBDENUM (VI) TETRACHLORIDE OXIDE(13814-75-0)

Safety Data

• Hazard Codes: Xi,C
• Statements: 36/37/38-34
• Safety Statements: 26-37/39-45-36/37/39
• RIDADR: UN 3260 8/PG 3
• WGK Germany: 3
• Hazardous Substances Data: 13814-75-0(Hazardous Substances Data)

Usage

Uses

Used in Polymer Industry:
Molybdenum (VI) Tetrachloride Oxide is used as a catalyst for the living polymerization of various acetylenes. This application is significant because it allows for the controlled synthesis of polymers with specific properties, which can be tailored for various end-use applications.
Used in Pharmaceutical Industry:
Molybdenum (VI) Tetrachloride Oxide serves as an oxidant in the aromatization of various Hantzsch-1,4-dihydropyridines. This process is crucial in the synthesis of certain pharmaceutical compounds, as it helps to convert the dihydropyridine intermediates into their aromatic forms, which possess the desired biological activities.
Used in Catalyst Preparation:
Molybdenum (VI) Tetrachloride Oxide is used as a molybdenum (Mo) precursor to prepare nafion-Mo composite material. This composite material acts as a catalyst for the preparation of nitrones by reacting primary amines with aldehydes. Nitrones are important intermediates in the synthesis of various organic compounds, including pharmaceuticals and agrochemicals.

InChI:InChI=1/4ClH.Mo.O/h4*1H;;/q;;;;+4;/p-4/rCl4MoO/c1-5(2,3,4)6

Upstream product

• 7719-09-7 thionyl chloride 
• 7446-70-0 aluminium trichloride 
• 10025-67-9 disulfur dichloride 
• 10241-05-1 molybdenum(V) chloride 
• 13520-78-0 tungsten(VI) oxychloride 
• 7647-01-0 hydrogenchloride 
• 10294-34-5 boron trichloride 
• 7791-25-5 sulfuryl dichloride 
• 7782-50-5 chlorine 

Downstream Products

• 13637-68-8 dioxomolybdenum(VI) dichloride 
• 75-77-4 chloro-trimethyl-silane 
• 121481-27-4 Mo(O)(S)Cl₂ 
• 68404-35-3 Mo(≡C-tBu)(neopentyl)₃ 
• 213404-30-9 MoCl₃(N(2,6-diisopropylphenyl))(dimethoxyethane) 
• 213404-28-5 MoCl₃(N(2,6-diisopropylphenyl))(N-2',6'-diisopropylphenyl-2,5-dimethyl benzamide)2 

Relevant articles and documents

Synthesis and IR spectroscopic study of molecular complexes of molybdenum oxotetrachloride with azomethines

Molecular complexes of MoOCl4 with benzal- and salicylalanilines were synthesized, and their IR spectra were investigated. The complexes have octahedral structure. Salicylalaniline and its derivatives were suggested to be coordinated by the cen

Crystal and Molecular Structure of Molybdenum Tetrachloride Oxide by Neutron and X-Ray Diffraction

The crystal and molecular structure of MoOCl4 has been determined by neutron and X-ray diffraction at 293 K and 77 K.A model, derived from consideration of the cubic close-packing together with an X-ray Patterson synthesis with Weissenberg data, was refined by the neutron powder profile-fitting technique to R = Σ0 - yc>/Σy0 = 0.094 (293 K) and 0.081 (77 K).The compound MoOCl4 is triclinic, space group PI, with unit-cell dimensions a = 6.255(4), b = 7.236(3), c = 7.134(3) Angstroem, α = 103.49(3), β = 107.02(6), and γ = 92.82(4) deg at 293 K.There are no large changes in the structure on cooling to 77 K.The Mo atoms occur in adjacent octahedral holes (Mo-Mo = 4.12 Angstroem) but there is no dimer formation as in MoCl5.The configuration around Mo is a square pyramid, with four basal chlorine atoms and an apical oxygen atom . The Mo atom is =0.41 Angstroem above the basal plane.There is longer MoCl interaction of 2.9 Angstroem in the octahedral position through the basal plane; if this were stronger (ca.Angstroem), then the structure would consist of dimers.The structure is in agreement with a gas electron-diffraction study, which found a C4v square pyramid with Mo-O = 1.658(5) and Mo-Cl = 2.279(3) Angstroem.It is also in agreement with the structures of WOCl4, ReOCl4, WSCl4, and WSBr4 where similar square pyramids are observed, but associated with different crystal symmetries.

Reactions of MoOCl4 and MoO2Cl2 with heterocyclic thioamides

MoOCl4/MoO2Cl2 were reacted with 2-mercaptopyridine (IUPAC: pyridine-2-thiol)/4phenylimidazole-2-thiol (IUPAC: 4-phenyl-1,3-dihydroimidazole-2-thione)/6-mercaptopurine (IUPAC: 1,7-dihydro-purine-6-thione) in acetonitrile m

The MoOCl4-TeCl4 System

Interaction in the MoOCl4-TeCl4 system is studied by differential thermal analysis. Formation of a new phase of the composition 1 : 1 is found. The region of the solid solution on the basis of tellurium tetrachlo-ride at 1440C extends to 25 mol % molybdenum oxotetrachloride.

Spectroscopic Studies on Matrix-isolated Molybdenum Pentachloride

Matrix-isolation studies have been carried out on molybdenum petnachloride.In a nitrogen-matrix, prominent i.r. bands are observed at ca. 473 and 408 cm-1, which on the basis of isotope studies are assigned as the A1 (axial and E Mo-Cl stretching modes of monomeric MoCl5 (C4v).Argon matrices yielded essentially the same spectroscopic features.Corresponding u.v.-visible spectra were obtained and assigned on the basis of a square-pyramidal geometry.Attempts to prepare and characterise MoCl6 were unsuccessful.

ANALYSIS OF VARIOUS METAL OXIDE/ORGANOHALIDE-BASED FLAME RETARDANTS.

The mechanism of evaporation of various metal oxides and the formation and evaporation of metal halides in the presence of chlorine-containing compounds have been studied by complex thermal analysis including atomic absorption measurement of the evolved s

The Reactivity of Molybdenum and Tugsten Trioxide Vapours towards Organic and Inorganic Compounds at -196 deg C

Vapours of molybdenum and tungsten trioxides, prepared by heating the solid oxides under vacuum, have been reacted with organic compounds and some inorganic halides at -196 deg C.Complexes of the trioxides are formed with pentane-2,4-dione, acetone, formic acid, and methanol, but the oxides fail to bring about metathesis or isomerisation of olefins.Oxygen-halogen exchange reactions occur between the trioxides and BCl3, SiCl4, and HCl; PCl3 is oxidised.The reactivity of the condensed vapours of both oxides at -196 deg C is markedly higher than the reactivity of the normal solid oxides at room temperature.