Step 1: Brief Description The given compound is 4-aminobenzoic acid. The IR and NMR spectrum of this compound also given. Determine the spectrum. Step 2: Determination of IR data The peaks are identified as following: Two bands at 3300 & 3230 cm. This is due to asymmetrical and symmetrical N-H stretching of NH₂ group. A broad stretching between $200-2500 cm** - This broad stretching is due to O-H in carboxylic acid group. Band at 1680-1700 cm¹. C=O Stretching 1600 cm C-C-C (aromatic carbon) Step 3: Determination of PMR spectrum Splitting patterns: It should be noted that spin-spin splitting is observed only between nonequivalent neighboring protons. Equivalent protons do spin-spin couple with one another but splitting is not observed. Chemical shift: A highly shielded proton has a low chemical shift and a highly deshielded proton has a high value of chemical shift. The given peaks are of following: Proton Level Chemical shift (ppm) Relative integration Multiplicity ABC -11.9 7.8 8.3 broad singlet (N-H D -5.9 2H proton) 2H %%%% 1H broad singlet (OH proton) 2H doublet doublet b. For the NMR spectrum shown below, draw the structure of the compound next to the spectrum and label the protons so that they match the letter labels shown on the NMR spectrum. Fill in the Chemical shift, integration and multiplicity in the table. You should consider electron donating and withdrawing effects before assigning the aromatic ring protons. Ε B C and D E Note that the actual measured integration values are given above each set of peaks. Also note that the signal from -3.8-4.5 ppm is due to two overlapping signals; A quartet (C) and a very broad singlet (D). Each of these two signas has an integration of approximately 2.0 (the total integration for this combined signal is approximately 4.0 (actual -3.851)) STRUCTURE: Proton label Chemical shift Relative Integration Expected (& Multiplicity (ppm) observed) C. The NMR spectrum shown A B C D E below represents the product (ethyl 4-aminobenzoate) after it has been shaken with deuterium oxide (D₂O). Write the equation for the reaction which occurs when D₂O reacts with ethyl 4-aminobenzoate. Draw the structure of the compound next to the spectrum and label the protons so that they match the letter labels shown on the NMR spectrum. Fill in the Chemical shift, integration and multiplicity in the table. D. on the results of the "D20 shake". What happened to the signal which had been caused by HD? Explain briefly.

A STK2083_Molecular_Spectroscopy_Group Assignment.pdf - Adobe Acrobat Reader DC File Edit View Sign Window Help Home Tools STK2083_Molecular. x Sign In 1 /1 119% a. Which of the compounds below best matches the following 'H NMR spectrum? Integration values are indicated next to their corresponding signal. 2. Search 'Signature' Convert PDF но Edit PDF A B Comment OH HO Combine Files D E EI Organize Pages 24 16 2 Redact A Compress PDF 16 U Protect 8 D Fill & Sign Create, edit and sign PDF forms & agreements PPM b. Briefly explain your answer 2 (a) based on number of signals, position of signals and the integration of the signals. Start Free Trial

determine compound based on this spectrum data: MS Data- m/z = 112(45.45 %), 113 (3.961 %), and 114 (0.195%) IR Peaks-0.9 ppm (t, 6H), 1.5 ppm (dt, 4H), 2 ppm (td, 4H), 5.4 ppm (tt, 2H) C NMR Peaks- 15, 24, 36, and 127 ppm

Analysis given IR, CNMR (written below), HNMR and mol weight: weight: 142g/mol C NMR: 4 uniques C's, small peak at 220ppm, medium peak at 50ppm, 2 strong peaks at 21 and 22ppm

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Can u explain in detail what the percentages mean what the spectral data means and what the structure is and how to find it thank u

Draw the structure for a compound with the formula C8H10O3 that exihibits the 1H-NMR spectrum provided integral parts are also provided in a table above the 1H-NMR picture.

Need help answer and simple explanation

Attached is the 13C-NMR Spectrum of Benzil (in CDCl3 and TMS) Can you provide  (chemical shift (experimental), chemical shift (literature), assignment)

What compound is consistent with the NMR spectrum below? d6-DMSO solution F0.60 0.55 -0.50 -0.45 -0.40 -0.35 -0.30 -0.25 -0.20 -015 -0.10 -0.05 -0.00 0.05 6.5 5.5 5.0 4.5 4.0 6.0 f1 (ppm) 7.5 7.0 HOI HO. но но (A) (B) (C) (D) For