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Molybdenum hexacarbonyl (also called molybdenum carbonyl) is the chemical compound with the formula Mo(CO) 6. This colorless solid, like its chromium , tungsten , and seaborgium analogues, is noteworthy as a volatile, air-stable derivative of a metal in its zero oxidation state.
Molybdenum hexacarbonyl is the precursor to many substituted derivatives. It reacts with organolithium reagents to give anionic acyls which can be O-alkylated to give Fischer carbenes . Structure of (mesitylene)molybdenum tricarbonyl .
The Mortreux system consists of molybdenum hexacarbonyl resorcinol catalyst system. The phenyl and p-methylphenyl substituents on the alkyne group are scrambled. Metal-catalyzed alkyne metathesis was first described in 1968 by Bailey, et al. The Bailey system utilized a mixture of tungsten and silicon oxides at temperatures as high as 450 °C.
(Mesitylene)molybdenum tricarbonyl arises from the reaction of molybdenum hexacarbonyl with hot mesitylene: [1]. Mo(CO) 6 + (CH 3) 3 C 6 H 3 → Mo(CO) 3 [(CH 3) 3 C 6 H 3] + 3 CO It can also be synthesized, with good yields by displacement of pyridine ligands of the trispyridine complex Mo(CO) 3 (pyridine) 3 in the presence of Lewis acids.
The compound is prepared by thermal reaction of the triene with molybdenum hexacarbonyl: [2] C 7 H 8 + Mo(CO) 6 → (C 7 H 8)Mo(CO) 3 + 3 CO. The compound is a piano stool complex, consisting of Mo(CO) 3 bound to six carbon centers of the triene. The methylene group projects from the plane of the six coordinated carbon atoms. [3]
Chemical formula Synonyms CAS number; C 6 ClF 5 O 2 S: pentafluorobenzenesulfonyl chloride: 832-53-1 C 6 CrO 6: chromium hexacarbonyl: 13007-92-6 C 6 Cr 23: chromium carbide: 12105-81-6 C 6 F 14 NO ...
Molybdenum(III) iodide is created by the reaction of molybdenum hexacarbonyl with iodine gas at 105 °C (221 °F). [2]2 Mo(CO) 6 + 3 I 2 → 2 MoI 3 + 12 CO It can also be made from molybdenum(V) chloride and a solution of hydrogen iodide in carbon disulfide.
Mo 2 (O 2 CCH 3) 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 HO 2 CCH 3 → Mo 2 (O 2 CCH 3) 4 + 12 CO + 2 H 2. Trinuclear clusters are byproducts. [7]