The title compound ,5-pentakis(propyn-1-yl)cyclopentadienyl]manganese
(1b) was prepared in two steps from tricarbonylcyclopentadienylmangane
se. The key step involves a 5-fold Stille coupling of eta5-1,2,3,4,5-p
entaiodocyclopentadienyl)manganese with 1-(trimethylstannyl)prop-1-yne
.