4000 100 80 60 40 IR Spectrum (liquid film) wwwww C-A 3000 43 10 40 80 13C NMR Spectrum (100 MHz, CDCI, solution) DEPT CH, CH₂ CH4 M = 86 proton decoupled 200 ¹H NMR Spectrum (200 MHz, CDCI, solution) 9 8 n W 1716 1600 1200 800 v (cm¹) Mass Spectrum 2000 120 160 m/e 160 7 200 120 6 240 C₂H60₂ 280 5 solvent 1 80 4 Problem 6 عليك او ) لون گرد 2 UV Spectrum max 289 nm (log₁0% 1.4) solvent: methanol (22 40 30 20 3 2-4 2 112 8 (ppm) 1 TMS 0 8 (ppr

4000 100 80 60 40 IR Spectrum (liquid film) wwwww C-A 3000 43 10 40 80 13C NMR Spectrum (100 MHz, CDCI, solution) DEPT CH, CH₂ CH4 M = 86 proton decoupled 200 ¹H NMR Spectrum (200 MHz, CDCI, solution) 9 8 n W 1716 1600 1200 800 v (cm¹) Mass Spectrum 2000 120 160 m/e 160 7 200 120 6 240 C₂H60₂ 280 5 solvent 1 80 4 Problem 6 عليك او ) لون گرد 2 UV Spectrum max 289 nm (log₁0% 1.4) solvent: methanol (22 40 30 20 3 2-4 2 112 8 (ppm) 1 TMS 0 8 (ppr

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

ChapterL3: Carbon (13c) Nmr Spectroscopy

Section: Chapter Questions

Problem 9CTQ

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1. For each set of spectral data, propose an acceptable structure that is consistent with the data. a. MS: M+ m/z=71, IR: 3340, 2960, 2870 cm-1 , 13C NMR: 47.20 (CH2), 25.64 (CH2) ppm b. MS: M+ m/z= 102, IR: 2960, 2870 cm-1, 13C NMR: 72.73 (t), 23.20 (t), 10.80 (q) ppm c. MS: M+ m/z=74, IR: 3310, 2960, 2870 cm^-1, 13C NMR: 62.44 (down), 34.86 (down), 18.98 (down), 13.88 (up) ppm (DEPT-direction) d. MS: M+ m/z=92 (M:M+2=3:1), IR: 2960, 2870 cm^-1, 13C NMR: 67.29 (C), 34.46 (CH3) ppm e. MS:M+ m/z=70, IR: 3070, 2960, 2870, 1666 cm^-1, 13C NMR: 138.92 (t), 114.26 (d), 35.96 (t), 22.17 (t), 13.59 (q) ppm f. MS: M+ m/z= 72, IR: 2960, 2870 cm^-1, 13C NMR: 31.68 (t), 29.80 (d), 22.20 (q), 11.69 (q) ppm g. MS: M+ m/z= 84, IR: 2960, 2870, 1734 cm^-1, 13C NMR: 220.16 (C), 38.30 (CH2), 23.24 (CH2) ppm h. MS:M+ m/z= 138, (M:M+2=1:1), IR: ~3010(broad), 1715 cm^-1, 13C NMR: 173.61(s), 25.21(t) ppm i. MS:M+ m/z=88, IR: 2960, 2870, 1736cm^-1, 13C NMR: 170.95 (C), 60.34 (CH2), 20.98 (CH3), 14.23 (CH3)…
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