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
Chapter13: Structure Determination: Nuclear Magnetic Resonance Spectroscopy
Section13.12: Dept 13c Nmr Spectroscopy
Problem 21P
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