Cyclopentadienyltungsten tricarbonyl dimer is the organotungsten compound with the formula Cp2W2(CO)6, where Cp is C5H5. A dark red crystalline solid, it is the subject of research, although it has no or few practical uses.

Structure and synthesis

The molecule exists in two rotamers, gauche and anti.[1] The six CO ligands are terminal, and the W-W bond distance is 3.222 Å.[2] The compound is prepared by treatment of tungsten hexacarbonyl with sodium cyclopentadienide followed by oxidation of the resulting NaW(CO)3(C5H5).[3]

References

  1. ^ Brian Mann (1997-01-06). "Fluxionality of Cp2Mo2(CO)6". University of Sheffield.
  2. ^ R. D. Adams, D. M. Collins, and F. A. Cotton (1974). "Molecular Structures and Barriers to Internal Rotation in Bis(η5 -cyclopentadienyl)hexacarbonylditungsten and Its Molybdenum Analog". Inorg. Chem. 13 (5): 1086–1090. doi:10.1021/ic50135a015.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  3. ^ Manning, A. R.; Hacket, Paul; Birdwhistell, Ralph (1990). "Hexacarbonylbis(η5-Cyclopentadienyl)Dichromium, Molybdenum, and Tungsten and their Analogs, M2(η5-C5H4R)2(CO)6 (M = Cr, Mo, and W; R = H, Me or PhCH2)". Inorganic Syntheses. 28: 148–149. doi:10.1002/9780470132593.ch39. ISBN 9780470132593.
Allikas: Https://en.wikipedia.org/wiki/Cyclopentadienyltungsten_tricarbonyl_dimer
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