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Enantiotopic
Refers to two groups or atoms in a molecule that are mirror images of each other but are not superimposable, commonly used in stereochemistry.
Internal Reference
A benchmark or standard within an experiment or measurement against which other data or results are compared or calibrated.
Deshielded Proton
A proton in an NMR spectrum that appears at lower field due to its electron cloud being less shielded from external magnetic fields, often indicating an electron-withdrawing group nearby.
Farthest Downfield
In NMR spectroscopy, refers to the signal appearing at the lowest field strength, typically associated with environments experiencing the greatest deshielding.
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