Cyclopentadienyltungsten tricarbonyl dimer is the organotungsten compound with the formula Cp₂W₂(CO)₆, where Cp is C₅H₅. A dark red

crystal A crystal or crystalline solid is a solid material whose constituents (such as atoms, molecules, or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions. In addition, macro ...

line solid, it is the subject of research, although it has no or few practical uses.

Structure and synthesis

The molecule exists in two

rotamer In chemistry, conformational isomerism is a form of stereoisomerism in which the isomers can be interconverted just by rotations about formally single bonds (refer to figure on single bond rotation). While any two arrangements of atoms in a mole ...

s, gauche and anti. The six CO ligands are terminal, and the W-W bond distance is 3.222 Å. The compound is prepared by treatment of

tungsten hexacarbonyl Tungsten hexacarbonyl (also called tungsten carbonyl) is the chemical compound with the formula W(CO)6. This complex gave rise to the first example of a dihydrogen complex.Kubas, G. J., Metal Dihydrogen and σ-Bond Complexes, Kluwer Academic/Plenu ...

with

sodium cyclopentadienide Sodium cyclopentadienide is an organosodium compound with the formula C5H5Na. The compound is often abbreviated as NaCp, where Cp− is the cyclopentadienide anion. Sodium cyclopentadienide is a colorless solid, although samples often are p ...

followed by oxidation of the resulting NaW(CO)₃(C₅H₅).

Related compounds

* Cyclopentadienylmolybdenum tricarbonyl dimer *

Cyclopentadienylchromium tricarbonyl dimer Cyclopentadienylchromium tricarbonyl dimer is the organochromium compound with the formula Cp2Cr2(CO)6, where Cp is C5H5. A dark green crystalline solid. It is the subject of research it exists in measureable equilibrium quantities with the mono ...

References

{{tungsten compounds Organotungsten compounds Carbonyl complexes Dimers (chemistry) Half sandwich compounds Cyclopentadienyl complexes Chemical compounds containing metal–metal bonds