CH₂ Proton Label a b с d e Chemical shift (ppm) Click or tap Click or tap Click or tap Type response here Explain the multiplicity for Ha and Hb. Type response here Click or tap Click or tap Relative Integration Click or tap Click or tap Click or tap Click or tap Click or tap Multiplicity (predicted) Click or tap here Click or tap here Click or tap here Click or tap here Click or tap here There are two doublets in the aromatic region. Assign these signals to the corresponding protons and justify your choice. Hint: Draw at least one representative resonance structure for the compound using each of the substituents separately (see the question in the previous experiment for guidance), classify the substituents as either electron-donating or electron-withdrawing and decide if the adjacent protons are shielded or deshielded.

CH₂ Proton Label a b с d e Chemical shift (ppm) Click or tap Click or tap Click or tap Type response here Explain the multiplicity for Ha and Hb. Type response here Click or tap Click or tap Relative Integration Click or tap Click or tap Click or tap Click or tap Click or tap Multiplicity (predicted) Click or tap here Click or tap here Click or tap here Click or tap here Click or tap here There are two doublets in the aromatic region. Assign these signals to the corresponding protons and justify your choice. Hint: Draw at least one representative resonance structure for the compound using each of the substituents separately (see the question in the previous experiment for guidance), classify the substituents as either electron-donating or electron-withdrawing and decide if the adjacent protons are shielded or deshielded.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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3) A table of the pk, values of several species containing C-H bonds is given below. Compound pka Compound pka Bu H 47 25 -H F3C 36 H 15 Ph a) Draw possible organometallic bases derived from these compounds. H 32 & H HH H Ph 9
3
e the information in the pK₁ table below to determine which side of the equilibrium is favored for each of the reactions in e second table. acid pK₁ pKa CH4 SH u CH₂OH₂ + SH₂ + OH L SH OH + 50 19 10.5 + CH₂NH3 + 9 -2.2 м - 6.8 + CH4 acid CH,NH, CH₂NH3 OH Ï OH + OH Ï SH OH OH OH 36 10.6 10.0 Equilibrium Equation 4.8 -6.1 - 7.2 CH,NH, + OH SH₂ ii + + i SH₂ 0 + H₂-C O Left Favored Equal O O olo Ar Right Favored O
3. Determine how many DBE in each of the following compounds. C4H₂ONCI₂
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The protons indicated in the structure below would show up as a spectrum. O singlet O doublet O triplet O quartet Oseptet CH3 CH3 in a proton NMR
what would be the multiplicity of each proton?
Draw the isomer that would show three distinct signals in the 13C NMR. Draw the isomer that would show two distinct signals in the 13C NMR.
Please answer correct with explanation.
Can you interpret the CNMR any further?