122Problem 16IR Spectrum(iquid film)776296065040003000200016001200800V (cm)100-Mass Spectrum558060No significant UV41absorption above 220 nm40M 126/128/130 < 1%902092C4H&Cl24080120160200240280m/e13C NMR Spectrum(50.0 MHz. CDCI, solution)solventproton decoupled80408 (ppm)200160120H NMR Spectrum(200 MHz, CDCI, solution)expansionsTMS3.83.6ppm2018 ppm5 43.18 (ppm)10986105s of base peak

The molecular structure has been deduced in the following step.

IR Spectrum (liquid film) 4000 100 80 60 $ 40% 20 % of base peak 10 3000 55 41 2960 3.8 40 13C NMR Spectrum (50.0 MHz. CDCI, solution) proton decoupled 200 ¹H NMR Spectrum (200 MHz, CDCI, solution) 1 9 90 80 92 2000 120 v (cm¹) M 126/128/130 < 1% 160 200 3.6 ppm 8 m/e 160 expansions 1600 TT 20 120 T 18 ppm 1 1 7 6 1200 800 Mass Spectrum C4H8C12 280 240 1 776 5 650 solvent 80 4 Problem 16 No significant UV absorption above 220 nm H-C-H H-C-H 40 3 2 122 08 (ppm) TMS 0 8 (ppm) 1

IR Spectrum (liquid film) 4000 100 80 60 $ 40% 20 % of base peak 10 3000 55 41 2960 3.8 40 13C NMR Spectrum (50.0 MHz. CDCI, solution) proton decoupled 200 ¹H NMR Spectrum (200 MHz, CDCI, solution) 1 9 90 80 92 2000 120 v (cm¹) M 126/128/130 < 1% 160 200 3.6 ppm 8 m/e 160 expansions 1600 TT 20 120 T 18 ppm 1 1 7 6 1200 800 Mass Spectrum C4H8C12 280 240 1 776 5 650 solvent 80 4 Problem 16 No significant UV absorption above 220 nm H-C-H H-C-H 40 3 2 122 08 (ppm) TMS 0 8 (ppm) 1

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

Chapter8: An Introduction To Optical Atomic Spectrometry

Section: Chapter Questions

Problem 8.7QAP

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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
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)
Spectrum 28 100% 75%- 50%- 25% 0% 3500 2500 1750 1250 750 4000 3000 2000 1500 1000 50 Wavenumber (cm) NH2 Transmittance (%)
4000 IR Spectrum quid film) 100 80 60 40 YI 2248 41 10 3000 43 40 proton decoupled "C NMR Spectrum (150 MHz CDC, solution) 68 DEPT CH, CH, 1 CHT 9 200 ¹H NMR Spectrum (600 MHz, CDC, solution) M83 (<1%) 80 120 2000 v (cm) 8 m/e 160 160 2.3 L 7 1600 2.2 200 ryper 1200 6 ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ 120 Mass Spectrum 240 21 2.0 expansions (not to scale) 800 I CsH₂N 280 5 expansion 80 4 270 255 256 255 expansion No significant UV absorption above 220 nm 27.0 245 250 255 1.0 3 40 L 2 0 8 (ppm) 1 1 TMS L 1 0 8 (ppm) 10 ¹H-¹C me-HSQC Spectrum (600 MHz, CDC, solution) Black cross-peaks CH and CH Red cross-peaks CH₂ ppm 20 ¹H-"C HMBC Spectrum (600 MHz, CDC), solution) -22 -24 -26 -28 116 118 120 122 124 3.0 2.8 2.6 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 ppm ppm 20 22 -24 26 28 -116 118 -120 122 -124 3.0 2.8 2.6 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 ppm IR: List bands and possible/probable structural units responsible Band (cm³) Possible…
43 184 IR Spectrum (Iquid film) 4000 3000 100 80 60 40 20 40 13C NMR Spectrum (100.0 MHz, CDCI, solution) 9 80 DEPT CH₂ CH₂4 CHA proton decoupled 200 ¹H NMR Spectrum (400 MHz CDCI, solution) expansion 7.5 7.3 ppm 8 P 10 SAMSUNG Galaxy A53 5G 2000 1600 V (cm) 105 M+- 134 120 160 m/e 160 09b0f2ca-eac1-4... 1200 T L 120 2.8 2.7 ppm 7 6 ww 800 Mass Spectrum C10H14 200 240 280 T 1 5 solvent " 80 expansions 1.8 1.7 ppm 1 4 3:54 م 0 *1 470 صفحة Problem 96 UV Spectrum max 260 nm (log10=2.5) PE 40 1.45 1.35 ppm 3 2 Problem 97 08 (ppm) expansion 1.05 0.95 TMS I 0 8 (ppm) 1 202 تمشح بـ 100 جيجابايت تخزين على OneDrive cloud لمدة 6 أشهر 185.
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MASS % of Base Peak IR 100 5045 % Transmittance 100 T 50 4000 1540 ¹H NMR 300 MHz t 557 5.0 Hz 60 alla illle 677 69 1140 4.5 70 4.0 13C/DEPT NMR 75.5 MHz 3000 130 120 110 100 الد الله da 110 113 100 110 mm 817 Hz 500 90 80 m/z Wavenumber (cm-¹) 3.5 ми линия 80 90 480 Hz 957 3.0 70 2000 440 2.5 Hz 1450 2.0 -1126 120 1000 60 50 40 30 1287 130 1.5 ppm 20 ppm