Which of the following would absorb lower energy
1. Explain which of the following would absorb lower energy UV photons?
4-methyl-2, 4-heptadiene or4-methyl-1,3,5-heptatriene
2. What would you expect either of these substances to absorb visible light?
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If a 300 MHz spectrometer was used to produce an NMR spectra of the same sample where would this same signal appear (give answer in ppm)? Using a 60 MHz NMR spectrometer a signal for a sample appears at4.2 ppm.
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Explain which of the following would absorb lower energy UV photons? What would you expect either of these substances to absorb visible light?
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