You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 4-[4-[4-[(1E)-1-[(2Z)-9-cyclohexa-1,3-dien-1-yl-2-(6-ethenylidenecyclohexa-2,4-dien-1-ylidene)-9-phenyl-7,8-dihydrofluoren-3-ylidene]ethyl]phenyl]phenyl]-5,6-dihydro-1,10-phenanthroline .
user
C59H46N2
assistant