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- Identify the set of protons as unrelated, homotopic, enantiopic, or diastereotopic.B (3) Www Expected IR # 50. HO Но peaks for CO WEVEW Jumpogna 2ine Sen od show c bise -H1. Predict the multiplicity of each signal in the expected proton NMR ('H NMR) spectrum for each of the following compounds (a)ı) (e) CI CN CI Č F F (b) (c) A Meo OH (d), 1
- Q4) Two Isomers have the chemical formula C,H, identify their structure based on their IR spectra below? Isomer A Ahserbane/ 3000 200 W es/e Isomer B Aboerkance/4Indicate (no more than 2) for the following compound:HomotopicHeterotopicEnantiotopicDiastereotopicWhich one of the following statements is not true? O If the two protons in a CH2 group are diastereotopic, they will couple with each other. O Helium-4 is a magnetically inactive nucleus. O If you cool cyclohexane to a low enough temperature, you can distinguish between the axial and equatorial protons in NMR spectroscopy. O The magnet in a 400 MHz NMR spectrometer is stronger than the magnet in a 500 MHz spectrometer. O You would observe carbon-carbon coupling in the 13C NMR spectrum of propane if each of the carbon atoms were carbon- 13. %23 2$ % & 3. 4 6 7 4 E R Y A D F G H. K C V alt N
- Identify the relationship between the labelled protons as homotopic, enantiotopic or diastereotopic for the molecules below. Ha + Hb = Ha Hb Hc + Hd = سائل Hc. Hd4. Match the following spectrum to the structure it represents а. 4000 2000 1S00 100 3000 OH OCH, CH3 он OCH3 он b. eo00 1500 1000 spo 4000 3000 он NH2 co,H но H3 Cshows five isomers of C5H10O2. The two structures that would be hardest to distinguish by IR spectroscopy are
