Learning A ¹H NMR signal is observed at 199.0 Hz (downfield of TMS) on a 1.40 x 10²-MHz instrument. a) What is the observed chemical shift in parts per million (ppm)? b) What is the chemical shift, in parts per million (ppm), if the sample is analyzed with a 300.0-MHz instrument? c) Where will the proton signal appear, in hertz, if the sample is analyzed with a 300.0-MHz instrument? Chemical shift is Chemical shift is The downfield signal is ppm ppm Hz

Learning A ¹H NMR signal is observed at 199.0 Hz (downfield of TMS) on a 1.40 x 10²-MHz instrument. a) What is the observed chemical shift in parts per million (ppm)? b) What is the chemical shift, in parts per million (ppm), if the sample is analyzed with a 300.0-MHz instrument? c) Where will the proton signal appear, in hertz, if the sample is analyzed with a 300.0-MHz instrument? Chemical shift is Chemical shift is The downfield signal is ppm ppm Hz

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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