This chapter contains sections titled: Di-μ-Chloro-dichlorobis(η5-pentamethylcyclopentadienyl)dirhodium(III),[RhCp*Cl2]2 Di-μ-Chloro-dichlorobis(η5-pentamethylcyclopetandienyl)diiridium(III),[IrCp*Cl2]2 Tris(acetonitrile)(η5-pentamethylcyclopentadienyl)rhodium(2+)Hexafluorophosphate,[RhCp*(NCMe)3][PF6]2 Tris(acetonitrile)(η5-pentamethyulcyclopentadienyl)iridium(2+)Hexafluorophosphate, [IrCp*(NCMe)3][PF6]2 Preparation of Tris(η5-pentamethylcyclopentadienyl)iridium(2+)and Its Reacation with Fluorene Give (η5-Fluorene)(η5-pentamethylcyclopentadienyl)iridiuim(2+),[IrCp*(C13H10)][PF6]2