2) Part of the 'H NMR spectrum for a dipeptide recorded in D₂O is shown below. The signal for the CH 3 group is not shown. (i) Explain what has happened to the H-atoms attached to the N atoms. (ii) Interpret the spectrum Note the signals for HA and HA are subject to a second order effect. D₂N Ha `N H^H^' L-Ala-Gly 40 Hz H 0.1 ppm

2) Part of the 'H NMR spectrum for a dipeptide recorded in D₂O is shown below. The signal for the CH 3 group is not shown. (i) Explain what has happened to the H-atoms attached to the N atoms. (ii) Interpret the spectrum Note the signals for HA and HA are subject to a second order effect. D₂N Ha `N H^H^' L-Ala-Gly 40 Hz H 0.1 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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In the attached 1H NMR spectrum of ethyl-3-coumarincarboxylate, draw the structure on the spectrum and assign the various resonances (peaks) to the hydrogen nuclei responsible for them.
Step-by-step solution
interpret H NMR nitrated phenacetin in table format
The explanation Cannot be hand-drawn must be typed
How can I find the structure using this information
Calculate the HDI, propose functional groups, analyze each spectral data and assign a structure to the compound with a molecular formula C6HgCl₂O₂ if the two chlorines are in the geminal position. IR 1739 cm ¹ C-13-normal 170 63 53 35 31 18 DEPT-135 0 0 + 0 - + 3 DEPT-90 0 0 0 0 0 0 Conclusion