6. Explain why the aromatic protons in the molecules below resonate at the approximatefrequencies shown in a ¹H nmr spectrum (general region AND relative values to eachother). Ensure that you address the reason for the difference in resonance frequenciesbetween each position (o,m,p) and include any relevant structures in your answer. Notethis does not require you to calculate the expected shifts.H-Ph6.73 ppm7. Dimerisation of terminal alkenes has been shown to be achievable using Ruthenium catalystshowever a mixture of products results as shown in the example below.C-Me--Ru(PPh3)H3 (catalyst)80 °C, C6D6H6.79 ppmPh7.24 ppmH+PhPhHBHPhHHPhExplain how ¹H NMR could be used to distinguish between the three possible products A, Band C (other than by using tables to predict chemical shifts). In your answer give detailincluding approximations of any numerical values that would be used and an explanation of thereasons why the values differ for the 3 molecules.Ph

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6. Explain why the aromatic protons in the molecules below resonate at the approximate frequencies shown in a ¹H nmr spectrum (general region AND relative values to each other). Ensure that you address the reason for the difference in resonance frequencies between each position (o,m,p) and include any relevant structures in your answer. Note this does not require you to calculate the expected shifts. 6.73 ppm 6.79 ppm 7.24 ppm

6. Explain why the aromatic protons in the molecules below resonate at the approximate frequencies shown in a ¹H nmr spectrum (general region AND relative values to each other). Ensure that you address the reason for the difference in resonance frequencies between each position (o,m,p) and include any relevant structures in your answer. Note this does not require you to calculate the expected shifts. 6.73 ppm 6.79 ppm 7.24 ppm

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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