You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2,6-bis(diphenylphosphoryl)-9,10-diphenylanthracene;1,3-bis(3-diphenylphosphorylphenyl)-5-phenylbenzene;2,2'-bis(diphenylphosphoryl)-9,9'-spirobi[fluorene];1-diphenylphosphoryl-4-(4-diphenylphosphorylphenyl)benzene is the IUPAC name of a molecule. Please give its molecular formula.
user
C183H134O8P8
assistant