You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[2-[3-[3-[2,6-bis(3,5-diphenylphenyl)phenyl]-2H-benzimidazol-3-ium-2-id-1-yl]benzene-2-id-1-yl]oxy-1H-carbazol-1-id-9-yl]-[1]benzofuro[3,2-c]pyridine;platinum The above is the IUPAC name of a molecule. Write its molecular formula.
user
C78H48N4O2Pt-2
assistant