You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-chloro-1-fluoro-3-[4-(4-methylcyclohexyl)cyclohexen-1-yl]benzene-6-ide;rubidium(1+) The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H23ClFRb
assistant