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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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Pharmaceutical Chemistry 233 Practical 4b (Spectroscopy assignment) The following spectroscopic data were obtained for compound X (molecular formula C10H140), a natural product. UV spectrum A broad and intense peak at 276 nm is observed IR spectrum Thymol 80 T 60 m i 40- 20- 3500 3000 2500 2000 1500 1000 Wavenumbers MS spectrum (EIMS) MASS SPECTRUM 100 80 60 40 20 0.0 0.0 40 80 120 160 m/z NMR spectrum 'H NMR spectrum 6 H 3H 1H 3H 1H 1 ppm Rel. Intensity
Transcribed Image Text:Pharmaceutical Chemistry 233 Practical 4b (Spectroscopy assignment) The following spectroscopic data were obtained for compound X (molecular formula C10H140), a natural product. UV spectrum A broad and intense peak at 276 nm is observed IR spectrum Thymol 80 T 60 m i 40- 20- 3500 3000 2500 2000 1500 1000 Wavenumbers MS spectrum (EIMS) MASS SPECTRUM 100 80 60 40 20 0.0 0.0 40 80 120 160 m/z NMR spectrum 'H NMR spectrum 6 H 3H 1H 3H 1H 1 ppm Rel. Intensity
Answer the following questions in relation to compound X (not general theory) Calculate the double bond equivalence What structural information may be deduced from the UV data? 1. 2. What structural information may be deduced from the IR spectrum? What structural information may be deduced from the mass spectrum? Tabulate the NMR data as follows: 3. 4. 5. Chemical shift Multiplicity (8) Integration Structural information 1.3 2.3 3.2 4.7 6.55 6.7 7.1 6. Propose a structure for compound X. Explain your reasoning clearly.
Transcribed Image Text:Answer the following questions in relation to compound X (not general theory) Calculate the double bond equivalence What structural information may be deduced from the UV data? 1. 2. What structural information may be deduced from the IR spectrum? What structural information may be deduced from the mass spectrum? Tabulate the NMR data as follows: 3. 4. 5. Chemical shift Multiplicity (8) Integration Structural information 1.3 2.3 3.2 4.7 6.55 6.7 7.1 6. Propose a structure for compound X. Explain your reasoning clearly.
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