Please circle peaks and lines on the spectra and explain what you are using to determine the structure. I want to be able to solve these on my own not just look at an answer.

1630 IR Spectrum (liquid film) 1680 4000 3000 1200 800 0.0 2000 1600 V (cm) 100! Mass Spectrum 0.5 77 80: 131 60! 103 M+* 132 ul RM 1.0 40 20 CgH80 UV spectrum 0.372 mg/10 mis path length: 0.2 cm 1.5 solvent : methanol 200 250 300 2 (nm) 40 80 200 240 280 350 120 160 m/e 13C NMR Spectrum (50.0 MHz, CDCI, solution) + Resolves into two signals at higher field expansion 150 130 ppm DEPT Chat Chat CHT expansion Resolves into two signals at higher field proton decoupled 150 130 ppm solvent 11 1 1 200 160 120 80 40 0 8 (ppm) TH NMR Spectrum (200 MHz, CDCI, solution) TL 9.0 8.0 7.0 ppm 10 9 8 7 6 5 4 3 2 1 0 8 (ppm)