TRANSMITTANCE TRANSMITTANCE LOD Spectrum G mm D 4000 3000 2000 1500 1000 SOO BAVENUMBERI-11 Spectrum H 0.8 0.6 0.4 0.2 3000 2000 Wavenumber (cm-1) 1000 Molecule 1 NH2 Molecule 3 CH3 H₂C. CH3 CH3 Molecule 2 Molecule 4 Molecule 5 HO on Molecule 6 OH Molecule 7 Molecule 8 OH OCH3 Molecule 9 OH NH2 CH3 Molecule 10

TRANSMITTANCE TRANSMITTANCE LOD Spectrum G mm D 4000 3000 2000 1500 1000 SOO BAVENUMBERI-11 Spectrum H 0.8 0.6 0.4 0.2 3000 2000 Wavenumber (cm-1) 1000 Molecule 1 NH2 Molecule 3 CH3 H₂C. CH3 CH3 Molecule 2 Molecule 4 Molecule 5 HO on Molecule 6 OH Molecule 7 Molecule 8 OH OCH3 Molecule 9 OH NH2 CH3 Molecule 10

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter34: Particle Size Determination

Section: Chapter Questions

Problem 34.6QAP

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QUESTION 5 The IR, 'H NMR and 1°C NMR spectra of compound P are shown below. The molecular formula for compound P is CsH;NO2. Identify three (3) important absorption peaks on the IR spectrum and indicate the bond and wavenumber associated with each peak. Elucidate the structure of compound P and assign each peak in the 'H and 13C NMR spectra. (Hint: The compound consists of more than one functional group). а. b.
Transmittance (%) 100% 75% 50% 25% 0% 4000 3500 3000 OH 2500 2000 Spectrum 3B 1750 حسيمة 1500 Wavenumber (cm-¹) 1250 .OH 1000 OH 750 500
You will check the outcome of reaction via infra-red spectroscopy: what are the diagnostic functional group peaks for the following compounds? You should also indicate the stretching motions responsible for absorbance. Dilantin benzil (unreacted starting material) Urea (unreacted starting material)
Transmittance (%) Transmittance (%) 100 50 4000 100 4000 3000 2000 1500 Wavenumber(cm¹) 1500 Wavenumber(cm¹) 1000 1000 500
0.8 0.6 0.4 0.2 0.0 3000 2000 1000 Wavenumber (cm-1) ОН NH2 `NH2 A В C Transmitance
3. Th T 1001 90 80- 70- 60- 50- 40- 30- 20- 10- Transmittance 0- 50- 40- 30- 20- 10- zk 178 200.4 3500 39 41 50 51 125. 200 TB0 160 2H 2H ito ita Molecular Formula: C₁0H120 MW = 148 60 1H IN 3000 128.5 132.0 137.0 IR 128.0 2500 Wavenumber (cm-1) ¹HNMR 13 CNMR 2000 140 120 TOO 2H 60 1500 WALL Positive El Mass Spectrum 105 148 MA 120 133 91 40 50 60 70 80 90 100 110 120 130 140 150 160 MZ 40.4 1000 + 15 t 17.7 13.0 20 परं + + 134,1 परे 4 1324 5
1H 11 10 2H 2h 5 3H 3 An IR spectrum, a 13C NMR spectrum, and a ¹H NMR spectrum were obtained for an unknown structure. Draw the structure of this compound. 2 1 ppm
3500 3000 2500 Wavenumber cm-1 2000 1500 1000 500 3920.67 3082.32 2336.05 2235.94 1699.33 1655.52 1631.23 1407.26 1255.15 1189.54 1103.98 998.71 811.98 471.79 60 Transmittance [%] 80 70 90 fundamny BRUKER 100
6. C8H100 11 TRANSMITTANCE LOD HSP-04-492 0+ 10 4000 9 3000 8 5 7 6 : 5 ppm 2000 4 HAVENUMBERI-l 2: 2 1 3 1500 2 سهر 1 1000 0 500 200 T 180 CDS-06-431 DEPT-90 T 160 DEPT-135 140 120 100 لك -2 peaks u ppm 80 60 40 20 0
Chemistry Question
Lrdocaine USP (ATR) 95- 90 85 80 75 70 65 60 55 50 45 Lidocaine 40 4000 3500 3000 2500 2000 1500 1000 Wavenumbers (cm-1) %Transmittance IZ 3243.36 3021.30 2968.47 2921.13 2799.39 1661.66 1593.98 1491.43, 1449.061 422.12,384.681371.62 1291.03264.55 1206.99 1165.931119.56 1091.78072.77. 1034.33 970.79986.39 917.91, 885.23 763.76 703.94 615.01599.90
4000 3500 3000 2500 Wavenumbers (cm-1) 2000 20 1500 1000 500 1705.32 1354.36 1135.21 1476.83 997.91 2969.16 %Transmittance 1274.53 832.71 1427.75 953.40 553.28 790.43 1218.83 1585.98 894.05 671.73 780.29 463.73 100 C