Select the two major factors which influence chemical shifts from the list below. Please select all that apply.

Question

Quizplus · Accepted Answer

The two major factors which influence chemical shifts are electron density and anisotropic effects. Electron density is determined by the number of electrons surrounding a nucleus which can influence the shielding or deshielding of electrons. Anisotropic effects are created by nearby functional groups or double bonds that can cause a nonuniform magnetic field to form around the nucleus, leading to a chemical shift. Symmetry effects do not directly influence chemical shifts, and the number of adjacent atoms can influence chemical shifts but is not as significant as electron density and anisotropic effects.

Select the Two Major Factors Which Influence Chemical Shifts from the List