You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[(Z)-1-[2-[3-[3-[2,6-bis(2,3,4,5,6-pentadeuteriophenyl)phenyl]-2H-benzimidazol-3-ium-2-id-1-yl]benzene-2-id-1-yl]oxy-6-(9-phenylcarbazol-1-yl)-1H-carbazol-1-id-9-yl]-4,4-dimethylpent-1-enyl]methanimine;platinum is the IUPAC name of a molecule. Please give its molecular formula.
user
C69H51N5OPt-2
assistant