1. Please indicate the number of distinct 13C and 'H NMR signals you would expect to see for each of the following compounds. Note: for 'H NMR, do not consider spin-spin splitting/coupling or diastereotopic signals; in other words, a quartet counts as 1 signal in this analysis). Br Br. Br Br Br.. Br CF3 H3C CD3 Br
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- Indicate the expected number of distinct 13C and 1H NMR signals for each of the following compounds. Note: for 1H NMR, do not consider spin-spin splitting/coupling or diastereotopic signals. In this analysis, a quartet counts as one signal.Label the significant peaks in the IR and NMR spectra. When analyzing the signals in the 1H NMR, be sure to include all appropriate information. For example: 3H, singlet, 0 neighbors, and c (the letter referring to the corresponding unique type of hydrogens that were labeled in the structure). It is recommended to provide more analysis for each signal than what is described above, when necessary, such as labeling any coupling constants if any are provided. For 13C NMR label each peak to the corresponding carbon in your suggested structure. Include calculating degrees of unsaturation.Perform four region analyses by accounting for the presence and absence of bands and give three (at most) possible compounds that will show the following spectra.
- The 1H NMR spectrum for the commonly employed reactant epichlorohydrin is shown below. Despite featuring only a few signals, this spectrum provides an interesting case of assignment through the use of multiplicities and coupling constants. Can you assign the signals and explain the observed differences in geminal coupling constants?Analyze the 1H NMR data and talk about the coupling, splitting pattern, equivalents, and the j coupling, and the hydrogensOn a 500 MHz (proton) magnet, what is the frequency difference between two 13C resonances that differ by 5 ppm? What about for two 15N resonances?
- Describe how you would process palm oil samples adulterated with Sudan IV dye prior to Raman spectroscopy. Explain also how you would go about to analyze the sample using the raman spectroscopy to gain qualitative and quantitative information about the dyeExplain what each of the IR peaks of the ferrocene sample that underwent sublimination corresponds to and what functional group each peak corresponds to below.Show why the wavenumber frequency for D2 for the symmetric stretch is 2990 cm-1, whereas that of H2 is 4401 cm-1? What does that tell you about the bond strength of H2 relative to that of D2? Hint: D is a heavier isotope of Hydrogen
- Based on the following 1H NMR spectra for LDA. Need help calculating the large and small coupling constants.List the four spectroscopy methods that were discussed in class and briefly discuss the principles upon which each one is based (b) Describe how you could use any two of the methods listed in (a) to differentiate between the following two compounds: (i) Butanol and (ii) 2-Butanone.What are the important diagnostic peaks in this IR spectra? Fingerprint region <1500cm^-1 is not necessary. Thank you.