You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as benzhydrylidenezirconium(2+);2,7-diethyl-9H-fluoren-9-ide;2,5-di(propan-2-yl)cyclopenta-1,3-diene using the IUPAC nomenclature.
user
C41H44Zr
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