Imagine you have a nucleus that resonate at 60,000,256 Hz. What would be its chemical shift (in ppm) in a 60 MHz NMR, knowing that TMS has a resonant frequency of 60,000,060 Hz? Show your calculations. Why is it that nuclei closer to an OH (alcohol) group appear at higher chemical shift?

Imagine you have a nucleus that resonate at 60,000,256 Hz. What would be its chemical shift (in ppm) in a 60 MHz NMR, knowing that TMS has a resonant frequency of 60,000,060 Hz? Show your calculations. Why is it that nuclei closer to an OH (alcohol) group appear at higher chemical shift?

Organic Chemistry

9th Edition

ISBN:9781305080485

Author:John E. McMurry

Publisher:John E. McMurry

Chapter13: Structure Determination: Nuclear Magnetic Resonance Spectroscopy

Section13.12: Dept 13c Nmr Spectroscopy

Problem 21P

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Concept explainers

NMR Spectroscopy

NMR stands for Nuclear Magnetic Resonance in which the study of different molecules is done based on the interaction of radiofrequency electromagnetic radiations with the nuclei of molecules placed in a strong magnetic field. A precise study of spectra of visible light and all bands of electromagnetic radiation is called spectroscopy.

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Imagine you have a nucleus that resonate at 60,000,256 Hz. What would be its chemical shift (in ppm) in a 60 MHz NMR, knowing that TMS has a resonant frequency of 60,000,060 Hz? Show your calculations.
Why is it that nuclei closer to an OH (alcohol) group appear at higher chemical shift?

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