Homework Help is Here – Start Your Trial Now!
Science
Chemistry
Draw the structural formula that is consistent with the of the HNMR spectra shown below

Draw the structural formula that is consistent with the of the HNMR spectra shown below

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...
See similar textbooks
icon
Related questions
Question
Draw the structural formula that is consistent with the of the HNMR spectra shown below
### NMR Spectrum Analysis: Compound Identification of C₈H₉Cl #### Overview The Nuclear Magnetic Resonance (NMR) spectrum provided is an essential analytical tool in chemistry for identifying the structure of compounds. In this document, we will interpret the NMR spectrum of the compound with the molecular formula C₈H₉Cl, labeled as **Spectrum IV**. #### Spectrum Description The spectrum showcases the chemical shifts (δ) in parts per million (ppm) on the x-axis, indicating the environment of hydrogen atoms (protons) within the molecule. The y-axis represents the signal intensity. Here's a detailed breakdown of the spectrum’s components: 1. **Chemical Shifts (δ) and Signal Multiplets:** - **Peaks observed around δ ≈ 7-8 ppm:** - This region typically corresponds to aromatic protons. The cluster of peaks near this chemical shift suggests the presence of an aromatic ring. - **Peaks observed around δ ≈ 3-4 ppm:** - This region is often indicative of protons attached to carbons next to electronegative atoms such as chlorine. This is expected as the molecular formula includes chlorine. - **Peaks observed around δ ≈ 1-2 ppm:** - Protons in this region are generally part of alkane chains (methyl groups). 2. **Integration and Peak Splitting:** - Integration of the peaks (area under the curve) will provide information on the relative number of protons contributing to each signal. - Splitting patterns (multiplets) in the peaks such as doublets, triplets, or quartets provide further insight into the number of neighboring protons (n+1 rule). #### Interpretation Based on the given NMR spectrum for C₈H₉Cl: - **Aromatic Region (δ ≈ 7-8 ppm):** - The presence of multiple peaks suggests a substitution pattern on the benzene ring. - **Alkyl and Halogen-Substituted Regions (δ ≈ 1-4 ppm):** - The peaks in the δ ≈ 3-4 ppm range likely correspond to protons neighboring the chlorinated carbon. - Peaks in the δ ≈ 1-2 ppm range could indicate methyl groups attached to the aromatic ring. #### Conclusion The NMR spectrum is a fundamental tool for elucidating the structure
Transcribed Image Text:### NMR Spectrum Analysis: Compound Identification of C₈H₉Cl #### Overview The Nuclear Magnetic Resonance (NMR) spectrum provided is an essential analytical tool in chemistry for identifying the structure of compounds. In this document, we will interpret the NMR spectrum of the compound with the molecular formula C₈H₉Cl, labeled as **Spectrum IV**. #### Spectrum Description The spectrum showcases the chemical shifts (δ) in parts per million (ppm) on the x-axis, indicating the environment of hydrogen atoms (protons) within the molecule. The y-axis represents the signal intensity. Here's a detailed breakdown of the spectrum’s components: 1. **Chemical Shifts (δ) and Signal Multiplets:** - **Peaks observed around δ ≈ 7-8 ppm:** - This region typically corresponds to aromatic protons. The cluster of peaks near this chemical shift suggests the presence of an aromatic ring. - **Peaks observed around δ ≈ 3-4 ppm:** - This region is often indicative of protons attached to carbons next to electronegative atoms such as chlorine. This is expected as the molecular formula includes chlorine. - **Peaks observed around δ ≈ 1-2 ppm:** - Protons in this region are generally part of alkane chains (methyl groups). 2. **Integration and Peak Splitting:** - Integration of the peaks (area under the curve) will provide information on the relative number of protons contributing to each signal. - Splitting patterns (multiplets) in the peaks such as doublets, triplets, or quartets provide further insight into the number of neighboring protons (n+1 rule). #### Interpretation Based on the given NMR spectrum for C₈H₉Cl: - **Aromatic Region (δ ≈ 7-8 ppm):** - The presence of multiple peaks suggests a substitution pattern on the benzene ring. - **Alkyl and Halogen-Substituted Regions (δ ≈ 1-4 ppm):** - The peaks in the δ ≈ 3-4 ppm range likely correspond to protons neighboring the chlorinated carbon. - Peaks in the δ ≈ 1-2 ppm range could indicate methyl groups attached to the aromatic ring. #### Conclusion The NMR spectrum is a fundamental tool for elucidating the structure
Expert Solution
steps

Step by step

Solved in 2 steps with 1 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Mass Spectrometry
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Chemistry
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY
SEE MORE TEXTBOOKS