120 100-Noar 000cw e 40 Single oond shereh 4000 3500 3000 o 2500 2000 1500 1000
ID: 692089 • Letter: 1
Question
120 100-Noar 000cw e 40 Single oond shereh 4000 3500 3000 o 2500 2000 1500 1000 500 Thu Nov 30 09:43:30 2017 (GMF08:00) FIND PEAKS Spectrum: Region: Gemma and Elizabeth Spec Thu Nov 30 09:41:22 2017 (GMT08:00) 4000.00 400.00 Absolute threshold: 122.293 Sensitivity Peak list: 50 Position: 627.18 Intensity: 102.381 Position: 650.04 Intensity: 66.016 Position: 678.99 Intensity: 100.447 Position: 727.14 Intensity: 10.219 Position: 906.49 Intensity: 15.921 Position: 1063.26 Intensity: 102.848 Position: 1243.75 Intensity: 87.027 Position: 1366.12 Intensity: 105.509Explanation / Answer
Formula = C5H10O2
HD = 1
IR
2971 cm-1 for sp3 -C-H stretch
1722 cm-1 for C=O stretch
1465 cm-1 for C-O stretch
NMR
0.9 ppm (t, 3H) for CH3 next to CH2
1.6 ppm (qnt, 2H) for CH2 between CH3 and CH2
2.1 ppm (s, 3H) for CH3 next to C=O
4.2 ppm (t, 2H) for CH2 between CH2 and Oxygen,
Compound,
CH3CH2CH2COOCH3
name : methyl butanoate
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