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Exhibit 15-3
Refer to the data below to answer the following question(s).
The 1H NMR spectrum of [14]annulene at −60°C shows two signals,one at 0 ppm and one at 7.6 ppm,with an area ratio of 5:2.
-Refer to Exhibit 15-3.Draw in the protons on the [14]annulene skeleton provided below which are responsible for the 1H NMR signal at 0 ppm.
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