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Molybdenum hexacarbonyl is a popular reagent in academic research. [6]One or more CO ligands can be displaced by other ligands. [7] Mo(CO) 6, [Mo(CO) 3 (MeCN) 3], and related derivatives are employed as catalysts in organic synthesis for example, alkyne metathesis and the Pauson–Khand reaction.
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. Mo(CO) 6 reacts with arenes to give piano-stool complexes such as (mesitylene)molybdenum tricarbonyl.
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]
The molecule exists in two rotamers, gauche and anti. [1] The six CO ligands are terminal and the Mo-Mo bond distance is 3.2325 Å. [2] The compound is prepared by treatment of molybdenum hexacarbonyl with sodium cyclopentadienide followed by oxidation of the resulting NaMo(CO) 3 (C 5 H 5). [3]
Heteroleptic complexes of molybdenum and tungsten can by synthesized from their respective hexacarbonyl complexes. [4] M(CO) 6 + 4 MeCN + 2 NOBF 4 → [M(NO) 2 (MeCN) 4](BF 4) 2 Portion of the structure of the tetrachlorozincate (ZnCl 4 2−) salt of [Ni(MeCN) 6] 2+ [5] For the synthesis of some acetonitrile complexes, the nitrile serves as a ...
(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.
Molybdenum(II) chloride – Mo 6 Cl 12; Molybdenum(III) bromide – MoBr 3; Molybdenum(III) chloride – MoCl 3; Molybdenum(IV) carbide – MoC; Molybdenum(IV) chloride – MoCl 4; Molybdenum(IV) fluoride – MoF 4; Molybdenum(V) chloride – Mo 2 Cl 10; Molybdenum(V) fluoride – MoF 5; Molybdenum disulfide – MoS 2; Molybdenum hexacarbonyl ...
(Middle) Sigma bond. (Bottom) Back-bond. Most complexes containing the NO ligand can be viewed as derivatives of the nitrosyl cation, NO +. The nitrosyl cation is isoelectronic with carbon monoxide, thus the bonding between a nitrosyl ligand and a metal follows the same principles as the bonding in carbonyl complexes.