1H NMR Spectrum (400 MHz, CDC3 solution) 10 9 8 1 7 Co 6 LO 5 4 3 TMS 2 1 1 0 8 (ppm) 100 80 60 IR Spectrum (KBr disc) 1693 4000 3000 2000 1600 1200 800 V (cm³) % of base peak יזיזיויויניויויויזיד 40 20 56 M+112 Problem 10 Mass Spectrum No significant UV absorption above 220 nm C6H802 40 80 120 160 200 240 280 m/e 13C NMR Spectrum (100.0 MHz, CDCI, solution) DEPT CH2 CH3 CH↑ proton decoupled solvent 200 160 120 80 40 40 0 8 (ppm)

1H NMR Spectrum (400 MHz, CDC3 solution) 10 9 8 1 7 Co 6 LO 5 4 3 TMS 2 1 1 0 8 (ppm) 100 80 60 IR Spectrum (KBr disc) 1693 4000 3000 2000 1600 1200 800 V (cm³) % of base peak יזיזיויויניויויויזיד 40 20 56 M+112 Problem 10 Mass Spectrum No significant UV absorption above 220 nm C6H802 40 80 120 160 200 240 280 m/e 13C NMR Spectrum (100.0 MHz, CDCI, solution) DEPT CH2 CH3 CH↑ proton decoupled solvent 200 160 120 80 40 40 0 8 (ppm)

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Resolves into 13C NMR Spectrum (50.0 MHz, CDCI, solution) two signals at higher field DEPT CgH11Br Resolves into two signals at higher field expansions proton decoupled solvent 35.0 34.0 ppm 200 160 120 80 40 O 8 (ppm) 1H NMR Spectrum (200 MHz, CDCI, solution) expansion 3.0 2.5 ppm TMS 10 9 8 7 6 5 4 3 2 1 8 (ppm) Determine the structure of the compound based on the above information
опанит 1715 1600 IR Spectrum 100 4000 (liquid film) 43 80 75 60 M 40 20 % of base peak 10 3000 40 C 13C NMR Spectrum (20.0 MHz, CDCI solution) proton decoupled 9 80 200 ¹H NMR Spectrum (100 MHz, CDCI, solution) 101 8 2000 v (cm¹) M** 132 120 160 m/e 160 7 6 1200 120 Mass Spectrum 200 240 280 800 C-H 5 C6H1203 solvent L 80 4 -CH3 No significant UV absorption above 220 nm 3 H-C-H u -CH3 40 2 59 TMS 0 1 8 (ppm) TMS 0 8 (ppm)
Unrounded Rounded ε∗,L/μmol 0.0259825 0.0260 Heres the data if needed: TZ # Concentration Absorbance at 430 nmnm 1 33.6480 0.931 2 25.2360 0.757 3 16.8420 0.210 4 8.41200 0.137 5 4.20600 0.122
13C NMR Analysis of Aspirin Chemical Shift (Observed ppm) Assignment(s) (A'-J') Expected Chemical Shift Range (ppm) B' D' E' JOH Acetylsalicylic Acid (Aspirin) 169 & 170 152 125 135 (4 peaks) - 122 20 160 140 120 100 Figure 14.13 125.7-MHz 13C-NMR spectrum of aspirin in CDCl3. solvent 80 60 40 20 ppm
Myriam 1718 1. 4000 3000 1600 1200 800 V (cm¹) 100 Mass Spectrum 43 119 80 60 JIK M+* 40 176 20 161 C12 H16 O 40 80 200 280 120 160 m/e 13C NMR Spectrum (50.0 MHz, CDCI, solution) expansion 188 IR Spectrum (liquid film) % of base peak DEPT CH₂ CH₂ CH proton decoupled L 200 ¹H NMR Spectrum (200 MHz, CDCI, solution) J 1 9 10 I 8 2000 160 the 1 7 6 240 120 130 130 125 ppm 125 ppm L 5 expansion 1 80 1 4 solvent Problem 99 UV Spectrum max 262 nm (log₁0 € 2.5) solvent methanol 40 t I 3 1 2 4 08 (ppm) TMS 1 0 8 (ppm) 1 1 205
4000 100 80 60 20 % of base peak 3376 40 10 3000 59 13C NMR Spectrum (50.0 MHz, CDCI, solution) 173 proton decoupled 200 I 9 80 ¹H NMR Spectrum (200 MHz, CDCI, solution) DEPT CH₂ CH₂ CH4 IR Spectrum (liquid film) 2000 M+88 (<1%) 120 1600 v (cm¹) m/e 160 160 I I 8 7 mmm 1 120 200 240 6 1200 . Mass Spectrum L 800 1 5 C5H₁20 280 solvent L 80 4 problem 78 3 No significant UV absorption above 220 nm 40 Il 08 (ppm) 1 2 1 TMS 0 8 (ppm)
100 08 60 40 CH3(CH,),COOH 20 hexanoic acid 1711 1600 wavenumber (cm) 4000 3500 3000 2500 2000 1800 1400 1200 1000 800 600 tTAANSE-TTANCE
COMPOUND 1 INFRARED SPECTRUM 4800 3000 2000 1500 s000 MRVEMUSERI 1906 77 1598 S0 1819 1492 20 1366 1166 77 108? 21 B16 38 798 21 712 50 707 S4 SA7 B4 3270 21 56 1358 53 1345 50 1299 1238 9259 21 COMPOUND 1 2955 74 1029 2939 68 17 66 2924 2054 2727 4. 1454 1408 1378 1209 838 26 42 53 1176 24 10 656 67 49 833 25 620 50
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