Co 8(CO) 24C 6, a bis(tricobalt nonacarbonyl)/dicobalt hexacarbonyl derivative of 2,4-hexadiyne from the reaction of dicobalt octacarbonyl with hexachlorocyclopropane

Abstract

The reaction of dicobalt octacarbonyl with hexachlorocyclopropane in THF produced Co 8(CO) 24C 6 whose structure (A) was determined by means of single crystal X-ray crystallography. ▪ The compound is obtained from hexane/benzene as black Co 8(CO) 24C 6· 1 2 C 6H 6, crystallising in the triclinic space group P 1 with a = 15.57 ± 0.02 Å, b = 16.32 ± 0.02 Å, c = 9.77 ± 0.01 Å, α = 99.78 ± 0.10°, β = 115.06 ± 0.10 °, γ = 74.39 ± 0.10 °. The final discrepancy index is R F = 10.25% for 2484 independent, nonzero reflections.