Molecular Formula: C10H12ODegrees of unsaturation Show your work for degrees of unsaturation:What does degrees of unsaturation tell you about the molecule?IR Spectroscopy-list the significant IR absorbances by wavenumber and potential functional group nameswith substructure or fragment. Pro-tip: ignore the mess between 1000-1500 cm¹H NMRa) List data - chemical shift, integration, & splittingb) Draw a 'fragment' for each signal and/or list potential functional groupsc) Draw the proposed structure with all H's drawn and labeled - ex. A, B, C, etc.d) Correlate each ¹H NMR signal to hydrogen(s) on the structureStructure with 'H NMR assignments#3 cont'd - Molecular Formula: C₁0H12O13C NMRNMR Wksht #2 GS Templated) List chemical shiftse) Draw a 'fragment' for each signal and/or list potential functional groupsf) Draw the proposed structure, label all carbons, and correlate each NMR signal (ppm) tocarbon(s) on the structure4Structure with 1³C NMR assignments 3.ThT10019080-70-60-50-40-30-20-10-Transmittance0-50-40-30-20-10-zk178200.4350039 41 5051125.200 TB0 1602H 2Hito itaMolecular Formula: C₁0H120 MW = 148601HIN3000128.5132.0137.0IR128.02500Wavenumber (cm-1)¹HNMR13 CNMR2000140 120 TOO2H601500WALLPositive El Mass Spectrum105148MA1201339140 50 60 70 80 90100 110 120 130 140 150 160MZ40.41000+ 15t17.7 13.020परं++134,1परे413245

Where C is number of carbon atoms H is number of hydrogen atoms N is number of nitrogen atoms X is…

Molecular Formula: C10H12O Degrees of unsaturation Show your work for degrees of unsaturation: What does degrees of unsaturation tell you about the molecule? IR Spectroscopy - list the significant IR absorbances by wavenumber and potential functional group names with substructure or fragment. Pro-tip: ignore the mess between 1000-1500 cm. ¹H NMR a) List data - chemical shift, integration, & splitting b) Draw a 'fragment' for each signal and/or list potential functional groups c) Draw the proposed structure with all H's drawn and labeled - ex. A, B, C, etc. d) Correlate each 'H NMR signal to hydrogen(s) on the structure Structure with 'H NMR assignments 4

Molecular Formula: C10H12O Degrees of unsaturation Show your work for degrees of unsaturation: What does degrees of unsaturation tell you about the molecule? IR Spectroscopy - list the significant IR absorbances by wavenumber and potential functional group names with substructure or fragment. Pro-tip: ignore the mess between 1000-1500 cm. ¹H NMR a) List data - chemical shift, integration, & splitting b) Draw a 'fragment' for each signal and/or list potential functional groups c) Draw the proposed structure with all H's drawn and labeled - ex. A, B, C, etc. d) Correlate each 'H NMR signal to hydrogen(s) on the structure Structure with 'H NMR assignments 4

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter25: Instruments For Optical Spectrometry

Section: Chapter Questions

Problem 25.20QAP

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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
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Transmittance (%) Transmittance (%) 100 50 4000 100 4000 3000 2000 1500 Wavenumber(cm¹) 1500 Wavenumber(cm¹) 1000 1000 500
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
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Intensity (a.u.) 4000 3352 cm¹ 3500 3000 UNKNOWN B 1710 cm¹ 2000 1668 cm¹ 2500 Wavenumber (cm¹¹) 1500 1101 cm 1000 500
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
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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.
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