Fill out this table based on the IR spectrum of 1,4-Dimethoxybenzene below. If you show the...

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Question

Fill out this table based on the IR spectrum of 1,4-Dimethoxybenzene below. If you show the table clearly, I will rate :)

Label	Absorbance Max	Relative Intensity	Shape	Functional Group/Hybridization	Considerations, Comments

% Transmittance 4000 3500 3278.64 3000 3053.06 2952.13 2 2835.57 2500 Wavenumbers (cm-1) 2000 hamid 1629.41 1600.80 1584.97 1

Answer 1

Answer #1

(i) The absorption at ~ 3279 cm^-1 corresponds to sp2 C-H stretching frequency of the phenyl ring.

(ii) The remaining absorption 2900-2850 cm^-1 corresponds to sp3 C-H stretching frequency of the methoxy groups.

(iii) The absorption at ~ 1630 cm^-1 corresponds to the C=C stretching frequency of the phenyl ring.

(iv) The absorptions at 1450 and 1375 cm^-1 corresponds to CH₃ bending vibrational frequency of methoxy groups.

(v) The absorption at 1300-1000 cm^-1 corresponds to the C-O stretching frequency of the ether linkage.

Answer 2

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