Zwitterion: A molecule having a net formal charge of zero, but negative and positive formal charges on individual atoms within its structure. (Some authors limit the term zwitterion to species in which opposite formal charges are not on adjacent atoms.)
Amino acids are the best-known examples of zwitterions.
Illustrated Glossary of Organic Chemistry. The charged atoms must be joined by one or more covalent bonds.
Amino acids exist as zwitterions at physiological pH. Zwitterion Explained: A zwitterion, usually used in context of proteins, is a molecule that contains two functional groups, each possessing opposite charges. They contain an amine group (basic) and a carboxyl group (acidic). A zwitterion, also known as inner salt or dipolar ion, is an overall neutral species in which two or more atoms bear opposite formal charges.
Meaning that one contains a positive charge while the other contains a negative charge, […]
A zwitterion is a molecule that contains both positively and negatively charged functional groups, and the net charge of the entire molecule is zero. Zwitterion Zwitterion Definition: A net neutral compound that exhibits charge separation. For a resonance-stabilized (see resonance theory) species to qualify as a zwitterion, all resonance forms must fit the definition of the zwitterion. The most …