Concept explainers
Interpretation:
The protons D–H are to be ranked in order from largest chemical shift to smallest.
Concept introduction:
A proton’s absorption peak is shifted downfield (i.e., to higher chemical shift) by nearby electronegative atoms. This downfield shift occurs because electronegative atoms are inductively electron withdrawing, so they remove electron density from the nearby proton. The proton is said to be deshielded, resulting in a higher signal frequency, and thus, a larger chemical shift. Magnetic anisotropy deshields hydrogen nuclei associated with simple
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ORGANIC CHEMISTRY E-BOOK W/SMARTWORK5
- Please help me to interpret this spectrum.arrow_forwardRank attached group of protons in order of increasing chemical shift.arrow_forwardDraw the correct molecule in the box to the right. Label the relevant peaks in the spectra with the proper functional group. If the absence of key peaks led to your choice, indicate which key peaks were absent.arrow_forward
- Determine the number of expected signals for the following compounds. (see picture attached).arrow_forwardWhich underlined proton (or sets of protons) has the greater chemical shift (that is, the higher frequency signal)?arrow_forwardMatch the compound to spectrum by drawing the structure next to correct spectrum. Then explain by describing the total number of signals each structure should have and which carbon would be farthest downfield.arrow_forward
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