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**Spectroscopy Unknown** The spectra and data provided were obtained from a pure organic molecule. For ^1H NMR Spectra, the integral is given in the 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 (in a 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 cm⁻¹ (all listed are strong (s) unless otherwise indicated) --- **^1H NMR Spectrum (400 MHz, CDCl₃, 25 °C):** - **Broad Singlet (br s):** Slightly before 10 ppm, integrated for 1H. - **Doublets (d):** Near 8 ppm and 7 ppm, each integrated for 2H. - **Multiplet (m):** Around 3 ppm, integrated for 1H. - **Singlet (s):** Near 2 ppm, integrated for 3H. - **Doublet (d):** Close to 1 ppm, integrated for 6H. --- **^13C NMR Spectrum, proton-decoupled (125 MHz, CDCl₃, 25 °C):** - Peaks are labeled with their corresponding carbon environments: - **(C):** Peaks located at around 180, 160, 140 ppm. - **(CH):** Peaks observed at around 130 and 120 ppm. - **(CH₃):** Peaks appear at approximately 25 and 20 ppm. - An additional **(CH)** labeled peak is present near 50 ppm. This data provides a detailed characterization of the molecular structure through NMR analysis, offering insights into the types of hydrogen and carbon environments present in the compound. Understanding these spectra allows for the determination of the molecular framework.

**Spectroscopy Unknown** The spectra and data provided were obtained from a pure organic molecule. For ^1H NMR Spectra, the integral is given in the 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 (in a 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 cm⁻¹ (all listed are strong (s) unless otherwise indicated) --- **^1H NMR Spectrum (400 MHz, CDCl₃, 25 °C):** - **Broad Singlet (br s):** Slightly before 10 ppm, integrated for 1H. - **Doublets (d):** Near 8 ppm and 7 ppm, each integrated for 2H. - **Multiplet (m):** Around 3 ppm, integrated for 1H. - **Singlet (s):** Near 2 ppm, integrated for 3H. - **Doublet (d):** Close to 1 ppm, integrated for 6H. --- **^13C NMR Spectrum, proton-decoupled (125 MHz, CDCl₃, 25 °C):** - Peaks are labeled with their corresponding carbon environments: - **(C):** Peaks located at around 180, 160, 140 ppm. - **(CH):** Peaks observed at around 130 and 120 ppm. - **(CH₃):** Peaks appear at approximately 25 and 20 ppm. - An additional **(CH)** labeled peak is present near 50 ppm. This data provides a detailed characterization of the molecular structure through NMR analysis, offering insights into the types of hydrogen and carbon environments present in the compound. Understanding these spectra allows for the determination of the molecular framework.

Chemistry
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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Identify the unknown
**Spectroscopy Unknown** The spectra and data provided were obtained from a pure organic molecule. For ^1H NMR Spectra, the integral is given in the 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 (in a 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 cm⁻¹ (all listed are strong (s) unless otherwise indicated) --- **^1H NMR Spectrum (400 MHz, CDCl₃, 25 °C):** - **Broad Singlet (br s):** Slightly before 10 ppm, integrated for 1H. - **Doublets (d):** Near 8 ppm and 7 ppm, each integrated for 2H. - **Multiplet (m):** Around 3 ppm, integrated for 1H. - **Singlet (s):** Near 2 ppm, integrated for 3H. - **Doublet (d):** Close to 1 ppm, integrated for 6H. --- **^13C NMR Spectrum, proton-decoupled (125 MHz, CDCl₃, 25 °C):** - Peaks are labeled with their corresponding carbon environments: - **(C):** Peaks located at around 180, 160, 140 ppm. - **(CH):** Peaks observed at around 130 and 120 ppm. - **(CH₃):** Peaks appear at approximately 25 and 20 ppm. - An additional **(CH)** labeled peak is present near 50 ppm. This data provides a detailed characterization of the molecular structure through NMR analysis, offering insights into the types of hydrogen and carbon environments present in the compound. Understanding these spectra allows for the determination of the molecular framework.
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 the 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 (in a 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 cm⁻¹ (all listed are strong (s) unless otherwise indicated) --- **^1H NMR Spectrum (400 MHz, CDCl₃, 25 °C):** - **Broad Singlet (br s):** Slightly before 10 ppm, integrated for 1H. - **Doublets (d):** Near 8 ppm and 7 ppm, each integrated for 2H. - **Multiplet (m):** Around 3 ppm, integrated for 1H. - **Singlet (s):** Near 2 ppm, integrated for 3H. - **Doublet (d):** Close to 1 ppm, integrated for 6H. --- **^13C NMR Spectrum, proton-decoupled (125 MHz, CDCl₃, 25 °C):** - Peaks are labeled with their corresponding carbon environments: - **(C):** Peaks located at around 180, 160, 140 ppm. - **(CH):** Peaks observed at around 130 and 120 ppm. - **(CH₃):** Peaks appear at approximately 25 and 20 ppm. - An additional **(CH)** labeled peak is present near 50 ppm. This data provides a detailed characterization of the molecular structure through NMR analysis, offering insights into the types of hydrogen and carbon environments present in the compound. Understanding these spectra allows for the determination of the molecular framework.
Expert Solution
Step 1: Introduce various spectral analysis

There are various types of spectra which help to find the structure of a compound. 

IR helps us to find the functional group present in that compound. 

Mass spectra helps us to get idea about the mass of major fragments and the molar mass of the compound

Proton and carbon-13 NMR shows different peaks for different types of protons and carbons present respectively in that compound. 

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