A compound of formula C11H16N2 gives the IR, 1H NMR, and 13 spectra shown. The proton NM...

A compound of formula C₁₁H₁₆N₂ gives the IR, ¹H NMR, and 13 spectra shown. The proton NMR peak at

disappears on shaking with Propose a structure for this compound, and show how your structure accounts for the observed absorptions.