You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
dichlorozirconium(2+);(4,7-dimethyl-1H-inden-1-id-2-yl)-bis(2-methylpropyl)phosphane is the IUPAC name of a molecule. Please give its molecular formula.
user
C38H56Cl2P2Zr
assistant