Explore BrainMass

NMR: Resonance Frequencies

This content was STOLEN from BrainMass.com - View the original, and get the already-completed solution here!

See the attached file for the problem.

1. a) Calculate the resonance frequencies of the following nuclei, given the values for the nuclear magnetic moment and spin, at a field strength of 10 kG. B_N = 5.05 * 10^-24 ergG^-1.

nucleus I u (in multiples of B_N)
11B 3/2 2.688
17O 5/2 1.893
50V 6 3.3413
1H 1/2 2.7928

b) Calculate the relative populations derivative N / N for the proton fields of 30kG, 150kG and 100kG at T = 25 degrees C.

c) If J(14N-H) for NH3 is 40 Hz, what is the size of J(15N-H) in 15NH3? J(15N-D) in 15ND3?

© BrainMass Inc. brainmass.com October 16, 2018, 2:11 am ad1c9bdddf - https://brainmass.com/chemistry/experimental-design-and-methods-in-chemistry/nmr-resonance-frequencies-37284


Solution Summary

This complete solution includes formated calculations and answers in an attached two-page word file.