You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 9-(4-tert-butylpyridin-2-yl)-7-(2-carbazol-9-ylphenyl)-2-[3-(3-phenyl-2H-benzimidazol-3-ium-2-id-1-yl)benzene-2-id-1-yl]oxy-1H-carbazol-1-ide;platinum by IUPAC nomenclature, provide its molecular formula.
user
C58H41N5OPt-2
assistant