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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Question
Provide a line angle structure that is consistent with the MF and NMR data
Transcribed Image Text:**Molecular Formula (MF) = C₅H₁₀O**
The image displays three NMR (Nuclear Magnetic Resonance) spectra labeled as:
1. **¹H Decoupled Spectrum:**
- This spectrum shows peaks labeled as a, b, and c.
- The chemical shift is measured in parts per million (ppm) from 0 to 240.
- The peaks represent different carbon environments within the molecule.
2. **DEPT 135° Spectrum:**
- DEPT (Distortionless Enhancement by Polarization Transfer) is used to differentiate CH, CH₂, and CH₃ groups.
- The spectrum also shows peaks labeled as a, b, and c.
- The peaks facing upwards and downwards help identify types of carbon:
- Positive peaks (upwards) usually represent CH and CH₃ groups.
- Negative peaks (downwards) usually represent CH₂ groups.
3. **DEPT 90° Spectrum:**
- This spectrum only shows peaks for CH groups.
- The spectrum shows a peak labeled as a.
In summary, these spectra help identify the types and environments of carbon atoms in the compound with a molecular formula of C₅H₁₀O.
Expert Solution
Introduction
The double bond equivalent gives us idea about propable number of double bond ring may be present in an unknown organic compound.
This DBE can be calculated from molecular formula.
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