Problem 2: Provide 3 potential formula's and draw 1 possible structure based on the following information a) m/z = 82 0.8 0.6 0.4 0.2 TTTTTTT 3000 2000 1000 Wavenumber (cm-1) b) m/z =141 IR= 2200 strong, sharp, 1700 strong and sharp

Consider a molecule with the molecular formula C5H8O. Draw the structure of the molecule based on the data given.

Determination of Structure Using Molecular Spectroscopy III Problem 2: C10H12O2 IR 1721 2000 MENIER 4 peaks Carbon NMR 200 180 160 140 120 100 80 60 40 20 2H 3H triplet Proton NMR triplet 3H 2H 2H sextet 11 10 8. 5 1 ppm

Based on the COSY spectra below what proton is just to the proton labeled "L" wie K, I C D A E E L 0.0 Mica Cote E D C BA 10 000 DOLANGE 0 (0 0 8.4 8.2 8.0 7.8 7.6 7.4 7.2 7.0 6.8 6.6 6.4 6.2 6.0 5.8 5.6 5.4 5.2 5.0 4.8 4.6 4.4 ppm 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5

Hand written solution only

Identify the peaks and structure.

H NMR (300 mMHz, CDCl3, 21C) 0.92 ppm (t, 3H, J = 7Hz), 1.20 (s, 6H), 1.50 (q, 2H, J = 7 Hz), 1.64 (broad singlet, 1H). Choose the chemical shift of the three lines in the triplet signal at 0.92 ppm? (Select all correct answers) a b с d f b0 0.920 ppm 0.897 ppm 0.943 ppm 7.920 ppm 6.080 ppm 0.998 ppm 0.842 ppm

Figur 3-6 LDO TRANSHE FERM 0 4000 3000 2000 HAVENUMERI-1 1510 1000 5.00

Given these 3 spectrums, draw the correct structure and explain step by step how you drew it.

Identify likely groups and identify likely signals on the IR. (ex. OH, NH, C=C, C-H sp3, aromatic etc)