Question

I did an IR experiment on an unknown compound and need help determining what it could be. This is the data I collected when using the IR instrument (sorry for all the numbers, you probably can’t see, that’s how the software produced the data)

PerkinElmer Spectrum Version 10.4.1 Tuesday, May 22, 2018 11:20 AM Date Tuesday, May 22, 2018 11:20 AM 109 105 100 95- 90 85 1, 99 1104 oper-1, 87.88%T 6%T 1388 11cm-1,B264% 75 70 65- 60- ? 756 1, 56.81%T 50 on-l, 5300ST 1166 86?1, 5394%T 45 806 407-1, 47.15%T 40 381 3500 3000 2500 2000 cm-1 1500 1000 600 Administrator 331 Sample 331 By Administrator Date Tuesday, May 22 2018

Answer 1

Pernin mer Spectrum Verion 10.4 Tuesday, May 22 2018 11:20 AM Analyst Tuesday, May 22, 2018 11:20 AM 109 105 100 1, 99 47T 90 55%T 8s C-H (Stretch) C-H (Stretch) Aldehyde 1 1 040ton, 1·87 88%T Aromatic 1, 84.98%T 1300 11cm. 1.B264%T C-H (Stretch) CH3 75 70 60- 756 83on, 1, 56 81%T 110686an, 1,5394%T C-O (bend) 50 1,5300%T 45 Stretch eo 45cm-1.47 15AT 40 38+ 3500 3000 2500 2000 cm-1 1500 1000 600 Administrator 331 Sample 331 By Administrator Date Tuesday, May 22 2018 The possible structrue of the compound is 4-methylbenzaldehyde as shown below CH3 CHO