Structure Determination

Question 1
Given the Molecular Formula and NMR spectra, determine the structure:

1. C₁₀H₁₄ [Spectra] [Solution]
2. C₄H₂O₃ [Spectra] [Solution]
3. C₆H₁₃P [Spectra] [Solution]
4. C₈H₉NO [Spectra] [Solution]
5. C₇H₆N₂O₄ [Spectra] [Solution]
6. C₉H₂₀N₂S [Spectra] [Solution]
7. C₁₀H₁₂O₄ [Spectra] [Solution]
8. C₄H₁₁O₃P [Spectra] [Solution]
9. C₁₁H₁₄O [Spectra] [Solution]
10. C₈H₁₉NO [Spectra] [Solution]
11. C₇H₁₂O [Spectra] [Solution]
12. C₇H₆Cl₂O [Spectra] [Solution]
13. C₆H₁₂O₂ [Spectra] [Solution]
14. C₇H₉N [Spectra] [Solution]
15. C₄H₁₀OS [Spectra] [Solution]
16. C₆H₁₅N [Spectra] [Solution]
17. C₁₄H₂₁Br [Spectra] [Solution]
18. C₁₁H₁₄O [Spectra] [Solution]
19. C₁₀H₈N₂ [Spectra] [Solution]
20. C₄H₅Br [Spectra] [Solution]
21. C₄H₈O₂ [Spectra] [Solution]
22. C₈H₁₀O [Spectra] [Solution]
23. C₅H₁₁BrO [Spectra] [Solution]
24. C₁₀H₁₁N [Spectra] [Solution]
25. C₇H₁₄OS [Spectra] [Solution]
26. C₄H₁₀O₂ [Spectra] [Solution]

Question 2
Given the Molecular Ion Pattern, IR Data and NMR spectra, determine the structure:

1. FW = 207 [Data] [Formula] [Structure]
2. FW = 252 [Data] [Formula] [Structure]
3. FW = 138 [Data] [Formula] [Structure]
4. FW = 314 [Data] [Formula] [Structure]
5. FW = 324 [Data] [Formula] [Structure]
6. FW = 308 [Data] [Formula] [Structure]
7. FW = 394 [Data] [Formula] [Structure]
8. FW = 238 [Data] [Formula] [Structure]
9. FW = 327 [Data] [Formula] [Structure]
10. FW = 282 [Data] [Formula] [Structure]
11. FW = 281 [Data] [Formula] [Structure]
12. FW = 212 [Data] [Formula] [Structure]
13. FW = 166 [Data] [Formula] [Structure]
14. FW = 234 [Data] [Formula] [Structure]
15. FW = 180 [Data] [Formula] [Structure]
16. FW = 344 [Data] [Formula] [Structure]
17. FW = 550 [Data] [Formula] [Structure]

Spin Systems

Question 1
For each of the following molecules, give the spin system notation. Consider only the most abundant isotope (i.e. for carbon consider ¹²C not ¹³C) and do not include nuclei that would not engage in observed coupling.

1. CH₃CH₂OCH₂CH₃ [Solution]
2. PF₅ [Solution]
3. ⁷⁷SeF₆ [Solution]
4. HF [Solution]
5. RhF₄ [Solution]
6. Tetrahydrofuran [Solution]
7. o-Dibromobenzene [Solution]
8. m-Dibromobenzene [Solution]