You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
9-(4-tert-butylpyridin-2-yl)-2-[3-[5-tert-butyl-3-(2,4,5-trimethylphenyl)-2H-imidazol-3-ium-2-id-1-yl]benzene-2-id-1-yl]oxy-1H-carbazol-1-ide;platinum The above is the IUPAC name of a molecule. Write its molecular formula.
user
C43H42N4OPt-2
assistant