Spectroscopy Unknown. The spectra and data provided were obtained from a pure organic molecule. For ¹H NMR Spectra, the integral is given in number of hydrogens (#H) or as a relative ratio. Important coupling constants (J-values) are listed next to the peaks for some examples. For some spectra, an inset (grey box) is also given showing al "zoom-in" on an important part of the spectrum. Mass Spectrum (not shown): [M] = 148 (100 %) m/z IR Spectrum (not shown): 3098, 2981, 1715, 1600, 1510, 1331 cm¹ (all listed are strong (s) unless otherwise indicated) ¹H NMR Spectrum (400 MHz, CDCI3, 25 °C) 8 dd (J= 8, 2 Hz) td (J= 8, 2Hz) 220 dd (J= 8, 2 Hz) 7 1H 1H 1H 1H (C) - td (J= 8,2 Hz) 6 2H S 1³C NMR Spectrum, proton-decoupled (125 MHz, CDCI3, 25 °C) (CH)(C)(CH) 200 180 160 5 (C) (CH) 4 PPM 2H 140 (CH) 120 PPM 100 3 (CH₂) 80 2 60 (CH₂) 40 20 0
Spectroscopy Unknown. The spectra and data provided were obtained from a pure organic molecule. For ¹H NMR Spectra, the integral is given in number of hydrogens (#H) or as a relative ratio. Important coupling constants (J-values) are listed next to the peaks for some examples. For some spectra, an inset (grey box) is also given showing al "zoom-in" on an important part of the spectrum. Mass Spectrum (not shown): [M] = 148 (100 %) m/z IR Spectrum (not shown): 3098, 2981, 1715, 1600, 1510, 1331 cm¹ (all listed are strong (s) unless otherwise indicated) ¹H NMR Spectrum (400 MHz, CDCI3, 25 °C) 8 dd (J= 8, 2 Hz) td (J= 8, 2Hz) 220 dd (J= 8, 2 Hz) 7 1H 1H 1H 1H (C) - td (J= 8,2 Hz) 6 2H S 1³C NMR Spectrum, proton-decoupled (125 MHz, CDCI3, 25 °C) (CH)(C)(CH) 200 180 160 5 (C) (CH) 4 PPM 2H 140 (CH) 120 PPM 100 3 (CH₂) 80 2 60 (CH₂) 40 20 0
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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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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Determine the spec unkown
![Spectroscopy Unknown. The spectra and data provided were obtained from a pure organic molecule.
For ¹H NMR Spectra, the integral is given in number of hydrogens (#H) or as a relative ratio. Important coupling constants
(J-values) are listed next to the peaks for some examples. For some spectra, an inset (grey box) is also given showing a
"zoom-in" on an important part of the spectrum.
Mass Spectrum (not shown): [M] = 148 (100 %) m/z
IR Spectrum (not shown): 3098, 2981, 1715, 1600, 1510, 1331 cm¹ (all listed are strong (s) unless otherwise
indicated)
¹H NMR Spectrum (400 MHz, CDCI3, 25 °C)
8
dd (J= 8, 2 Hz)
td (J= 8, 2Hz)
220
, dd (J= 8, 2 Hz)
7
1H 1H 1H 1H
(C)
-td (J= 8,2 Hz)
6
2H
S
5
1³C NMR Spectrum, proton-decoupled (125 MHz, CDCI3, 25 °C)
(CH)(C)(CH)
4
PPM 2H
(C) (CH)
(CH)
200 180 160 140 120
PPM
100
3
(CH₂)
80
2
60
(CH₂)
40
20](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Faf5d5edb-7877-4fa8-9f1a-7a2f9163b8ac%2Fa0dc46d4-e929-4ae0-b6b9-e2277449f80e%2Fk1sril_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Spectroscopy Unknown. The spectra and data provided were obtained from a pure organic molecule.
For ¹H NMR Spectra, the integral is given in number of hydrogens (#H) or as a relative ratio. Important coupling constants
(J-values) are listed next to the peaks for some examples. For some spectra, an inset (grey box) is also given showing a
"zoom-in" on an important part of the spectrum.
Mass Spectrum (not shown): [M] = 148 (100 %) m/z
IR Spectrum (not shown): 3098, 2981, 1715, 1600, 1510, 1331 cm¹ (all listed are strong (s) unless otherwise
indicated)
¹H NMR Spectrum (400 MHz, CDCI3, 25 °C)
8
dd (J= 8, 2 Hz)
td (J= 8, 2Hz)
220
, dd (J= 8, 2 Hz)
7
1H 1H 1H 1H
(C)
-td (J= 8,2 Hz)
6
2H
S
5
1³C NMR Spectrum, proton-decoupled (125 MHz, CDCI3, 25 °C)
(CH)(C)(CH)
4
PPM 2H
(C) (CH)
(CH)
200 180 160 140 120
PPM
100
3
(CH₂)
80
2
60
(CH₂)
40
20
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Step 1: NMR spectroscopy
VIEWStep 2: Carbon NMR spectroscopy
VIEWStep 3: IR spectroscopy
VIEWStep 4: Proton NMR spectroscopy
VIEWStep 5: Determine molecular formula
VIEWStep 6: Determine molecular formula and DOU
VIEWStep 7: DOU and Determine structure for given data
VIEWStep 8: Structure of unknown
VIEWStep 9: Assignment of signals
VIEWSolution
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