Cycloheptatrienemolybdenum tricarbonyl is the

organomolybdenum compound Organomolybdenum chemistry is the chemistry of chemical compounds with Mo-C bonds. The heavier group 6 elements molybdenum and tungsten form organometallic compounds similar to those in organochromium chemistry but higher oxidation states tend to ...

with the formula (C₇H₈)Mo(CO)₃. It is a red-orange solid that is soluble in nonpolar

organic solvent A solvent (from the Latin '' solvō'', "loosen, untie, solve") is a substance that dissolves a solute, resulting in a solution. A solvent is usually a liquid but can also be a solid, a gas, or a supercritical fluid. Water is a solvent for p ...

s. The compound has no practical value but is a prototypical complex of

cycloheptatriene Cycloheptatriene (CHT) is an organic compound with the chemical formula, formula C7H8. It is a closed ring of seven carbon atoms joined by three double bonds (as the name implies) and four single bonds. This colourless liquid has been of recurring ...

Synthesis, structure, and reactions

The compound is prepared by thermal reaction of the triene with

molybdenum hexacarbonyl 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 ...

: :C₇H₈ + Mo(CO)₆ → (C₇H₈)Mo(CO)₃ + 3 CO The compound is a

piano stool complex Half sandwich compounds, also known as piano stool complexes, are organometallic complexes that feature a cyclic polyhapto ligand bound to an MLn center, where L is a unidentate ligand. Thousands of such complexes are known. Well-known examples in ...

, 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. The compound reacts with

trityl Triphenylmethane or triphenyl methane (sometimes also known as Tritan), is the hydrocarbon with the chemical formula, formula (C6H5)3CH. This colorless solid is soluble in nonpolar organic solvents and not in water. Triphenylmethane is the basic sk ...

salts to give the cycloheptatrienyl complex: M. L. H. Green, D. K. P. Ng "Cycloheptatriene and -enyl Complexes of the Early Transition Metals" Chemical Reviews 1995, volume 95, pp. 439-73. {{doi, 10.1021/cr00034a006 :(C₇H₈)Mo(CO)₃ + (C₆H₅)₃C⁺ → C₇H₇)Mo(CO)₃sup>+ + (C₆H₅)₃CH

References

Organomolybdenum compounds Carbonyl complexes Cycloheptatrienyl complexes Half sandwich compounds Molybdenum(0) compounds