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] = 177 (100%) m/z IR Spectrum (not shown): 3200 (sh m), 3060, 2981, 1685, 1600, 1495 cm¹ (all listed are strong (s) unless otherwise indicated) ¹H NMR Spectrum (400 MHz, CDCI3, 25 °C) br s 180 10 1H (C) 8 13C NMR Spectrum, proton-decoupled (125 MHz, CDCl3, 25 °C) 160 2H 2H (CH) (C) (C) 140 (CH) PPM 120 100 PPM 80 60 E 2 1H 3H (CH3) (CH) 40 6H (CH3) 20
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] = 177 (100%) m/z IR Spectrum (not shown): 3200 (sh m), 3060, 2981, 1685, 1600, 1495 cm¹ (all listed are strong (s) unless otherwise indicated) ¹H NMR Spectrum (400 MHz, CDCI3, 25 °C) br s 180 10 1H (C) 8 13C NMR Spectrum, proton-decoupled (125 MHz, CDCl3, 25 °C) 160 2H 2H (CH) (C) (C) 140 (CH) PPM 120 100 PPM 80 60 E 2 1H 3H (CH3) (CH) 40 6H (CH3) 20
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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![### Spectroscopy Unknown
The spectra and data provided were obtained from a pure organic molecule.
#### Mass Spectrum (not shown):
- **[M] = 177 (100%) m/z**
#### IR Spectrum (not shown):
- **Key Absorption Bands** (all listed are strong unless otherwise indicated):
- 3200 (sh m)
- 3060
- 2981
- 1685
- 1600
- 1495 cm⁻¹
#### ¹H NMR Spectrum (400 MHz, CDCl₃, 25 °C)
The ¹H NMR spectrum displays the following peaks:
- **0.9 ppm**: Singlet (s), corresponding to 6 hydrogens.
- **1.7 ppm**: Doublet (d), corresponding to 3 hydrogens.
- **2.2 ppm**: Multiplet (m), corresponding to 1 hydrogen.
- **6.5 ppm**: Doublet (d), corresponding to 2 hydrogens.
- **7.3 ppm**: Doublet (d), corresponding to 2 hydrogens.
- **10 ppm**: Broad singlet (br s), corresponding to 1 hydrogen.
#### ¹³C NMR Spectrum, proton-decoupled (125 MHz, CDCl₃, 25 °C)
The ¹³C NMR spectrum illustrates:
- **20 ppm**: (CH₃)
- **30 ppm**: (CH₃)
- **50 ppm**: (CH)
- **70 ppm**: (CH)
- **120 ppm**: (CH)
- **130 ppm**: (CH)
- **140 ppm**: (C)
- **160 ppm**: (C)
- **170 ppm**: (C)
This data assists in identifying the molecular structure by providing information on the number and types of hydrogen and carbon environments present in the molecule. The integration of peaks in the ¹H NMR spectrum corresponds to the number of hydrogens, while the splitting patterns (singlets, doublets, multiplets) offer insight into the hydrogen’s neighboring atoms. Similarly, the ¹³C NMR spectrum reveals distinct carbon environments within the compound.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F56b89a6c-6ca3-4f25-9a44-1409c69966fc%2Fb3249177-cb97-409e-a823-ef204a39d9ac%2Fibrx4z_processed.png&w=3840&q=75)
Transcribed Image Text:### Spectroscopy Unknown
The spectra and data provided were obtained from a pure organic molecule.
#### Mass Spectrum (not shown):
- **[M] = 177 (100%) m/z**
#### IR Spectrum (not shown):
- **Key Absorption Bands** (all listed are strong unless otherwise indicated):
- 3200 (sh m)
- 3060
- 2981
- 1685
- 1600
- 1495 cm⁻¹
#### ¹H NMR Spectrum (400 MHz, CDCl₃, 25 °C)
The ¹H NMR spectrum displays the following peaks:
- **0.9 ppm**: Singlet (s), corresponding to 6 hydrogens.
- **1.7 ppm**: Doublet (d), corresponding to 3 hydrogens.
- **2.2 ppm**: Multiplet (m), corresponding to 1 hydrogen.
- **6.5 ppm**: Doublet (d), corresponding to 2 hydrogens.
- **7.3 ppm**: Doublet (d), corresponding to 2 hydrogens.
- **10 ppm**: Broad singlet (br s), corresponding to 1 hydrogen.
#### ¹³C NMR Spectrum, proton-decoupled (125 MHz, CDCl₃, 25 °C)
The ¹³C NMR spectrum illustrates:
- **20 ppm**: (CH₃)
- **30 ppm**: (CH₃)
- **50 ppm**: (CH)
- **70 ppm**: (CH)
- **120 ppm**: (CH)
- **130 ppm**: (CH)
- **140 ppm**: (C)
- **160 ppm**: (C)
- **170 ppm**: (C)
This data assists in identifying the molecular structure by providing information on the number and types of hydrogen and carbon environments present in the molecule. The integration of peaks in the ¹H NMR spectrum corresponds to the number of hydrogens, while the splitting patterns (singlets, doublets, multiplets) offer insight into the hydrogen’s neighboring atoms. Similarly, the ¹³C NMR spectrum reveals distinct carbon environments within the compound.
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