Theory of Chemical Shifts and g-values. The Influence of Electronic Orbital Angular Momentum on the Position of Resonance
In the previous chapter we discussed some ways in which the magnetic resonance spectrum of a particle can be modified by an environment consisting of other charged and/or magnetic species. Empirically we determine certain parameters, which are generally tensor quantities, having nine components, since they (the particles) are in three dimensional space, and are termed g-values, chemical shifts and coupling constants. The numbers actually obtained for these “time-independent” parameters depend, in the first instance, on the composition and electronic structure of the atom, molecule or group of molecules in which the nucleus or odd electron under investigation is embedded.
KeywordsChemical Shift Orbital Angular Momentum Ligand Field Antibonding Orbital Proton Chemical Shift
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