A new transformation of cyclo-octatetraene upon complexation: crystal and molecular structure of two isomers of [Mo2(CO)2(η-C5H5)2(C8H8)]
Abstract
Cyclo-octatetraene reacts with [{Mo(CO)3(η-C5H5)}2] in octane at reflux to give purple [Mo2(CO)2(η-C5H5)2(C8H8)], which in polar solvents undergoes a hydrogen shift within the C8 ring to yield an orange isomer; X-ray diffraction studies have established the molecular structure of each isomer.