From the proton (60 MHZ) and Amar spectrum, determine whether you have: -An arom

Question

From the proton (60 MHZ) and Amar spectrum, determine whether you have: -An aromatic or aliphatic? What is evidence for multiple bonds or other functional groups? -What do the splitting partnershell you about the structure of the unknown? AssIgn peaks to the protons in the compound. -What does the chemical shift of the proton signals suggest? -What does the integration tell you ?
4 unk Sensitivity: 1.0 10.22 ppm608.50 Mz 8.00 DEFINE REGION MODE Define: Drng using teft mouse button Return: Left-click highLighted icon 10 6 (ppm

Explanation / Answer

Spectral analysis

First spectrum

Aliphatic

0.9 ppm (triplet, 3H) for CH3 next to CH2

1.5 ppm (multiplet, 2H) for CH2 between CH2 and CH3

2.0 ppm (multiplet, 2H) for CH3 next to CH2

4.0 ppm (triplet, 2H) for CH2 between CH2 and oxygen

--

Second spectrum

Aromatic

3.9 ppm (singlet, 2H) for CH2 between Ph and Oxygen

6.9 ppm (doublet, 2H) for phenyl protons ortho to -CH2OH substituent

7.8 ppm (doublet, 2H) for phenyl protons ortho to -CHO substituent

9.9 ppm (singlet, 1H) for -CHO proton

Related Questions

Navigate

• Browse (All)
• Browse F
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.