1H NMR Spectrum Complete the following table using the spectrum in Figure 2. Note the integration is given at the top of

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1h Nmr Spectrum Complete The Following Table Using The Spectrum In Figure 2 Note The Integration Is Given At The Top Of 5 (19.72 KiB) Viewed 11 times

1H NMR Spectrum Complete the following table using the spectrum in Figure 2. Note the integration is given at the top of the spectrum in red. Write the peak number next to the corresponding proton(s) on the structure given. Draw the missing hydrogens first. Note that you may not need all rows given. Table 4. 'H NMR analysis of dibenzalacetone Peak Chemical Splitting Integration Peak Chemical Shift (6) Shift (8) Splitting Integration 1 6 2 7 3 8 00 4 9 5 10

20 (a) (oom) 40 20 (b) 6 74 72 70 68 6.6 (open)

Table 5. C NMR analysis of dibenzalacetone Peak Chemical Shift (8) Chemical Shift (6) 1 2 Peak 5 6 7 8 3 4

4 180 160 8 140 120 oppm

Mass Spectrum In your notebook, draw structures of the three fragments with m/z of 77, 103, and 131, and 234 (Figure 4). Mass Spectrum 120 300 Relative Intensity 2 320 180 20 ma Figure 4. Mass spectrum of dibenzalacetone (NIST Chemistry WebBook)