for the compound 4,4'-Dimethoxybenzophenone,

use this information to fill in

for an expected IR spectra

\begin{tabular}{|c|c|c|} \hline Functional Group & Frequency (cm1) & Intensity \\ \hline Alkyl C-H & 28502960 & medium-strong \\ \hline Alkene C-H stretch & 30103095 & medium \\ \hline Alkene C=C stretch & 16201680 & variable \\ \hline Alkyne C-H stretch & 3300 & strong \\ \hline Alkyne C=C stretch & 21002260 & variable \\ \hline Aromatic C-H stretch & 3030 & variable \\ \hline Aromatic C=C & 14501600 & variable \\ \hline Alcohol O-H (dilute) & 3503650 & sharp, variable \\ \hline Alcohol O-H (concentrated) & 32003550 & broad, strong \\ \hline Amine N-H stretch & 33003500 & medium \\ \hline Amine N-H bend & 15001600 & strong \\ \hline Nitrile C=N & 22202260 & medium \\ \hline Almine C=N & 16401690 & medium \\ \hline Aldehyde C=O & 16301780 & strong \\ \hline Aldehyde C-H & 27002900(2 peaks) & variable \\ \hline Ketone C=O & 16801750 & strong \\ \hline \end{tabular} \begin{tabular}{|c|c|c|} \hline Carboxylic acid C=O & 17101780 & strong \\ \hline Carboxylic acid O-H & 25003000 & variable \\ \hline Ester C=O & 17351750 & strong \\ \hline C-O & 10001300 & variable \\ \hline Amide C=O & 16301690 & strong \\ \hline Amide N-H & 33503500 & variable \\ \hline Conjugated Ketone C=0 & 16901630 & strong \\ \hline \end{tabular} \begin{tabular}{|l|l|l|l|} \hline Abs. Max. (cm1) & Intensity & Shape & Peak Assignment \\ \hline & & & \\ \hline & & & \\ \hline & & & \\ \hline & & & \\ \hline \end{tabular}