(a) Calculate the energy difference between the two spin states of 'H and of 13C in a magnetic field of 6.8 T. 1H 13с (b) What is the precession frequency of a 'H nucleus at this magnetic field? Of a 13C nucleus? 260 65 × MHz |× MHz 1H 13с 4.0 (c) At what magnetic field do protons precess at a frequency of 300. MHz?

Organic Chemistry
9th Edition
ISBN:9781305080485
Author:John E. McMurry
Publisher:John E. McMurry
Chapter13: Structure Determination: Nuclear Magnetic Resonance Spectroscopy
Section13.1: Nuclear Magnetic Resonance Spectroscopy
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(a) Calculate the energy difference between the two spin states of 1H and of 13C in a magnetic field of 6.8 T.
1H
4.0
13C
4.0
J
(b) What is the precession frequency of a 1H nucleus at this magnetic field? Of a 13c nucleus?
1H
4.0 260
MHz
13C
(4.0 65
MHz
(c) At what magnetic field do protons precess at a frequency of 300. MHz?
4.0
T.
Transcribed Image Text:(a) Calculate the energy difference between the two spin states of 1H and of 13C in a magnetic field of 6.8 T. 1H 4.0 13C 4.0 J (b) What is the precession frequency of a 1H nucleus at this magnetic field? Of a 13c nucleus? 1H 4.0 260 MHz 13C (4.0 65 MHz (c) At what magnetic field do protons precess at a frequency of 300. MHz? 4.0 T.
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