Following are infrared spectra of 2-methyl-1-butanol and tert-butyl methyl ether.Assign each compound its correct spectrum.Micrometers2.51003.4.9.138101112141520908070504030201040003600320028002400200018001600140012001000800600400Wavenumber (cm-1)Transmittance (%) Micrometers2.510048.91011121314 152090807060504030201040003600320028002400200018001600140012001000800600400Wavenumber (cm-1)Transmittance (%)

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Answered: Following are infrared spectra of…

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

ChapterL4: Proton (1h) Nmr Spectroscopy

Section: Chapter Questions

Problem 15E

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Following are infrared spectra of methylenecyclopentane and 2,3-dimethyl-2-butene. Assign each compound its correct spectrum. Micrometers 2.5 100 6 9. 10 11 12 13 14 15 20 90 80 70 60 50 40 30 20 10 4000 3600 3200 2800 2400 2000 1800 1600 1400 1200 1000 800 600 400 Wavenumber (cm-1) Transmittance (%)
Consider the following Infrared spectrum. What functional group can you identify in the diagnostic region of the spectrum? % Transmittance 100 80 60 40 20 O alkene 0 4000 O alkyne O aldehyde O carboxylic acid O ketone 3500 3000 2500 2000 Wavenumber (cm-¹) 1500 z 1000
Which of the shown compounds corresponds to the shown IR spectrum ? Micrometers 2.5 100 8 10 12 13 14 15 20 90 80 70 50 40 30 20 10 4000 3600 3200 2800 2400 2000 1800 1600 1400 1200 1000 800 600 400 Wavenumber (cm-!) NH2 Transmittance (%)
Two infrared spectra are shown. One is the spectrum of cyclohexane, and the other is the spectrum of cyclohexene. Identify them, and explain your answer. (a) 100 * 80 60 40 20 4000 3500 3000 2500 2000 1500 1000 500 Wavenumber (cm-1) (b) 100 * 80 60 40 20 Transmittance (%) Transmittance (%)
a) The IR spectrum below is either benzoin or benzil. Which one is which? 1.0 Transmitance 0.9 0.8 0.7 0.6 0.5 tr 0.4 0.3 0.2 0.1 0.0 3500 3000 2500 Infrared Spectrum 2000 Wavenumbers (cm-1) reverse Xcm-1 Transmittance 1500 memper 1000 https://webbook.nst.gov/cgi/cbook.cgi?ID=C119519&Mask-80 It is Benzoin ** b) Provide rationale for the previous question within three sentences. 500
6) The compound with the molecular formula C4H10O was synthesized. It was further analyzed using IR spectroscopy. The spectrum of the compound is illustrated below. Identify the structure of a compound. Justify your answer. Identify as many peaks on its IR spectrum as possible. (5 points) 100 80 60 60 %T 40 20 20 0 4000 R2020-93124TM 3000 2000 1500 1000 400 Wavenumber [cm-1]
The IR spectrum below belongs to an organic compound A having one nitrogen atom. Determine which structures that fits to the IR spectrum. Justify your answer by providing two (2) IR absorption peaks with their wavenumber. CN NH2 Ahsorbance / 4 50 100- 4000 3000 2500 2000 1500 1000 500 Wavenumbers / cm
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
Which functional group, except alkane, is presence in the following IR spectrum? INFRARED SPECTRUM Relative Transmittance 0.96 0.92 carboxylic acid ether alcohol alkene 3000 2000 Wavenumber (cm-1) m 1000
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
Following are infrared spectra of nonane and 1-hexanol. Assign each compound its correct spectrum. Micrometers 2.5 3 6 7 8. 9 10 11 12 13 14 15 20 100 90 80 70 60 50 40 30 20 10 4000 3600 3200 2800 2400 2000 1800 1600 1400 1200 1000 800 600 400 Wavenumber (cm-1) Transmittance (%) 8-
1. Predict the approximate positions of all of the important absorptions in the IR spectrum of this compound. wwwww ww CH;CH2CH=CHČOH 2. Explain which functional group is present in the compound with the following IR spectrum. Show a possible structure for the compound. C6H10 NEAT 400 400 200 4000 300 300 3400 31200 3000 2900 2600 2400 200 2000 1800 1600 1400 1200 1000 WAVENUMBERS

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