Compound $2$ is a liquid $($boiling point $72C),$ that reacts with alkoxide to yield an ether. The Mass, $R,$ and $1H$ NMR spectra, along with $13C$ NMR data, are given below. Elemental analysis: C$,15\mathrm{.}40$; H$,3$:$23$; contains halogen. Using all of the information provided, determine the correct structure of Compound $2.$