You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
iron(3+);oxygen(2-);1-pyridin-2-yl-N,N-bis(pyridin-2-ylmethyl)methanamine;tetraphenylboranuide;dichloride is the IUPAC name of a molecule. Please give its molecular formula.
user
C60H56BCl2Fe2N8O2-
assistant