Question

what factors that affect the chemical shift in NMR spectroscopy

Answer 1

Answer:

Important factors influencing chemical shift are electron density, electronegativity of neighboring groups and anisotropic induced magnetic field effects. Electron density shields a nucleus from the external field

Answer 2

Answer:

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Explanation:

There are two major factors that cause different chemical shifts (a) deshielding due to reduced electron density (due electronegative atoms) and (b) anisotropy (due to π bonds). Coupling = Due to the proximity of "n" other equivalent H atoms, causes the signals to be split into (n+1) lines.