MLchartDataset catalogue

Zwitterions

Term · Chemistry · MLC-T-CHM-012824

Neutral molecules that possess both positive and negative formal charges on different atoms within the same molecule. These compounds are dipolar but have no net electrical charge. Amino acids, for instance, exist as zwitterions in aqueous solution at physiological pH, with a protonated amino group and a deprotonated carboxyl group.

Table 1. Record
IdentifierMLC-T-CHM-012824
FieldChemistry
SubjectOrganic and Biomolecular Chemistry
Synonymsinner salts; zwitterionic compounds; ampholytes
ReferencesPAC, 1994, 66, 1077. 'Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)' on page 1176 (https://doi.org/10.1351/pac199466051077); PAC, 1995, 67, 1307. 'Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)' on page 1375 (https://doi.org/10.1351/pac199567081307)
See alsoBetaines; Dipolar compounds; Ylides
Record as JSON
{
  "id": "MLC-T-CHM-012824",
  "term": "Zwitterions",
  "field": "Chemistry",
  "definition": "Neutral molecules that possess both positive and negative formal charges on different atoms within the same molecule. These compounds are dipolar but have no net electrical charge. Amino acids, for instance, exist as zwitterions in aqueous solution at physiological pH, with a protonated amino group and a deprotonated carboxyl group.",
  "synonyms": [
    "inner salts",
    "zwitterionic compounds",
    "ampholytes"
  ],
  "subject": "Organic and Biomolecular Chemistry",
  "see_also": [
    "betaines",
    "dipolar compounds",
    "ylides"
  ],
  "references": [
    "PAC, 1994, 66, 1077. 'Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)' on page 1176 (https://doi.org/10.1351/pac199466051077)",
    "PAC, 1995, 67, 1307. 'Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)' on page 1375 (https://doi.org/10.1351/pac199567081307)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/zwitterions/"
}

Record 13,674 of 13,678 in Chemistry terminology (MLC-0109). Request the full dataset.