You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1,4-diethylcyclopenta-1,3-diene;1,9-dihydrofluoren-1-ide;dimethylsilylidenezirconium(2+);dichloride is the IUPAC name of a molecule. Please give its molecular formula.
user
C24H28Cl2SiZr-2
assistant