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Which isomer of C6H14 would have the fewest signals in 13C NMR? A - HSC - SSCE Chemistry - Question 12 - 2022 - Paper 1
Question 12
Which isomer of C6H14 would have the fewest signals in 13C NMR? A. H H H H H - C - C - C - H H H H B. H C H H H - C - C - C - H H H ... show full transcript
Worked Solution & Example Answer:Which isomer of C6H14 would have the fewest signals in 13C NMR? A - HSC - SSCE Chemistry - Question 12 - 2022 - Paper 1
Step 1
Identify the isomer with the fewest signals in 13C NMR:
Answer
To determine which isomer of C6H14 has the fewest signals in 13C NMR, we need to analyze the symmetries of each isomer presented.
- Isomer A: The structure shows that there are multiple carbon atoms in different environments, likely resulting in multiple signals.
- Isomer B: Similar to A, this structure also presents different environments for the carbon atoms.
- Isomer C: This configuration might reduce the number of unique carbon environments, but still has some distinct signals.
- Isomer D: Upon analysis, it has a symmetrical structure, which leads to fewer elemental carbon environments, resulting in the least number of signals.
Thus, the isomer with the fewest signals in 13C NMR is D.