How is Ruthenium(2+) di(2,4-cyclopentadienide) (CAS: 1287-13-4) typically synthesized?

Ruthenium(2+) di(2,4-cyclopentadienide) is typically synthesized by the reaction of ruthenium(II) chloride with 2,4-cyclopentadienyl dihydride in the presence of a base. This process yields a complex that can be further characterized and used in various applications. The yield and selectivity can be optimized by controlling reaction conditions and using appropriate catalysts. Detailed synthesis procedures are available in the literature on coordination chemistry.