Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Describing identical atoms or groups attached to the same atom in a molecule

from the GNU version of the Collaborative International Dictionary of English

  • adj. A pair.

from The Century Dictionary and Cyclopedia

  • n. A pair.

Etymologies

Sorry, no etymologies found.

Examples

  • If a pair of geminal protons (CH2) cannot be interchanged through a symmetry operation of the molecule, then these protons are diastereotopic and are NOT chemically equivalent. e.g. the β-methylene protons of amino acids where the methylene group is attached to chiral C

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