Chemical shift

Definition

In nuclear magnetic resonance (NMR) spectroscopy, a chemical shift is a measure of the change in the resonant frequency of a nucleus relative to a standard reference. It provides insights into the electronic environment surrounding a nucleus, helping to identify molecular structures.

Related terms

Nuclear Magnetic Resonance (NMR) Spectroscopy: A spectroscopic technique used to observe local magnetic fields around atomic nuclei.

Proton NMR:

A type of NMR spectroscopy that specifically studies hydrogen-1 nuclei to determine molecular structure and dynamics.

Tetramethylsilane (TMS):

A compound used as the standard reference point for measuring chemical shifts in NMR spectroscopy