You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-tert-butyl-2-(8-phenyl-3H-dibenzofuran-3-id-4-yl)pyridine;iridium;trimethyl-(4-methyl-6-phenylpyridin-3-yl)silane is the IUPAC name of a molecule. Please give its molecular formula.
user
C42H40IrN2OSi-2
assistant