You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1,1,2,2,3,3-hexafluoro-6-methoxy-4-phenylspiro[4H-cyclopenta[a]naphthalene-5,2'-adamantane] The above is the IUPAC name of a molecule. Write its molecular formula.
user
C29H26F6O
assistant