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 2-diphenylphosphaniumylpropan-2-yl(diphenyl)phosphanium;1-ethynyl-9,9-diphenylfluorene;2-ethynyl-9,9-diphenylfluorene;3-ethynyl-9,9-diphenylfluorene;gold(1+) .
user
C243H186Au6P6+6
assistant