L.U.P.A.C. name for complex Mnπ−C5H5(CO)3

I.U.P.A.C name for [Mn(π−C​5H5​)(CO)3​]is Tricarbonyl (η5-cyclopentadienyl)manganese(I)In this complex CO is a neutral ligand so it will named first followed by C5​H5​ but as it is a π bonded ligand and has five carbons so it is named as η5-cyclopentadienyl. C5​H5​ has +1 charge so overall charge and oxidation state of manganese will be +1. Thus, the complex is named as  Tricarbonyl (η5-cyclopentadienyl)manganese(I)