You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named iridium;1-phenyl-3-[4-[2-[3-[2-[6-[3-(4-phenylphenyl)benzene-6-id-1-yl]pyridin-3-yl]phenyl]-5-[2-(6-phenylpyridin-3-yl)phenyl]phenyl]phenyl]benzene-6-id-1-yl]-2H-benzimidazol-2-ide is given. What is its corresponding molecular formula?
user
C77H50IrN4-4
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