Pentalene complexes from cyclo-octatetraenes: crystal structure of Ru3(CO)8(C8H6)

Abstract
Cyclo-octatetraenes R-C8H7(R = H, Me, Ph) undergo transannular cyclisation on reaction with Ru3(CO)12 in refluxing heptane or octane to form pentalene complexes Ru3(CO)8(R-C8H5); the molecular structure of fluxional Ru3(CO)8(C8H6) has been determined by an X-ray diffraction study.

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