Nuclear Magnetic Resonance Spectroscopy

plot that has the radio frequency on the $x$-axis and the signal or amount of energy on the $y$-axis

spectrum that plots the signals from three different nuclei against one another in three-dimensional space

energy state that is parallel to a field and requires lower energy

energy state that is antiparallel to a field and requires higher energy

difference in the resonant frequency of two protons because of their environment

plot where both axes are from proton NMR and they are plotted against one another to show which protons are coupled to each other

characteristic of protons near highly electronegative nuclei in which the protons experience more of the magnetic field

characteristic of a compound in which a hydrogen atom is replaced with a deuterium atom that has one proton and one neutron as compared to hydrogen that does not have any neutrons

liquid that is used to dissolve other substances (a solvent) that has at least one of its hydrogen atoms replaced with a deuterium atom that has one proton and one neutron as compared to hydrogen that does not have any neutrons

isotope of hydrogen that contains one proton and one neutron

characteristic of hydrogen atoms that are not in the same chemical environment and produce different signals in NMR spectroscopy

technique that provides the number of protons bonded to each carbon as well as the chemical shift provided by a regular carbon nuclear magnetic resonance (¹³C NMR)

left part of the NMR spectra where a low field strength is applied

characteristic of hydrogen atoms that are not in the same chemical environment and produce different signals in a chiral environment, such as in chiral solvents in NMR spectroscopy

¹H NMR spectra plotted on one axis with ¹³C spectra plotted on the other axis

characteristic of hydrogen atoms that are in the same chemical environment and produce the same signal in NMR spectroscopy

intensity of the signal on a proton nuclear magnetic resonance (¹H NMR) spectrum, providing a ratio of the number of protons found in the signal

resonance that occurs when atomic nuclei that have spin are placed into a magnetic field. Individual spins that are normally random in orientation line up parallel to the magnetic field.

instrument that uses the magnetic moment to gain information about the structure of a compound

magnetic moment resulting from the total angular momentum of certain nuclei, such as those with an odd number of either protons or neutrons

proton or neutron in an atomic nucleus

characteristic of protons that not experience the full effect of the magnetic field because of the electrons surrounding them

characteristic of a signal that has multiple peaks of different areas and heights

right part of the NMR spectra where a high field strength is applied