Abstract: The reaction of dichloro (pentamethylcyclopentadienyl) ruthenium (III) oligomer with alkali metal salts of a variety of cyclopentadienyl derivatives provided a convenient synthetic approach to unsymmetrical ruthenocenes. In addition, reaction of dichloro ( pentamethylcyclopentadienyl) ruthenium (III) oligomer with diazotetrachlorocyclopentadiene gave ($-pentamethylcyclopentadienyl)(q5-pentachlor~ yclo~ ntadienyl) ruthenium (II). ...
[Crossley, Neil S.; Green, Jennifer C.; Nagy, Attila; Stringer, Graham Journal of the Chemical Society, Dalton Transactions: Inorganic Chemistry (1972-1999), 1989 , p. 2139 - 2148]