The following is a Fridel-Cfrafts acylation expermient with a unknown that was mixed with AlCl3 these are the IR spectrum, nmr H1 proton nmr C-13, and NMR DEPT please tell me what the uknown is. Please do a complete interpretation of the IR and NMR spectra (label peaks, draw compunds and identify which peak is which, etc) and also please explain!! it thank you!

possible uknowns:

Toluene; Ethylbenzene; o-Xylene (1,2-dimethylbenzene); m-Xylene (1,3-dimethylbenzene); p-Xylene (1,4-dimethylbenzene); Pseudocumene (1,2,4-trimethylbenzene); Anisole (methoxybenzene) ; 1,2-Dimethoxybenzene; 1,3-Dimethoxybenzene ; 1,4-Dimethoxybenzene; or Mesitylene (1,3,5-trimethylbenzene).

\begin{tabular}{|l|l|l|} \hline Peak Number & Wavenumber (cm1) & Intensity \\ \hline 1 & 687.69383 & 0.01592 \\ \hline 2 & 736.14922 & 0.06263 \\ \hline 3 & 911.33410 & 0.44412 \\ \hline 4 & 982.15352 & 0.15279 \\ \hline 5 & 1295.24990 & 0.67056 \\ \hline \end{tabular} \begin{tabular}{|l|l|l|} \hline Peak Number & Wavenumber (cm1) & Intensity \\ \hline 1 & 687.69383 & 0.01592 \\ \hline 2 & 736.14922 & 0.06263 \\ \hline 3 & 911.33410 & 0.44412 \\ \hline 4 & 982.15352 & 0.15279 \\ \hline 5 & 1295.24990 & 0.67056 \\ \hline \end{tabular}