dipolar bond

https://doi.org/10.1351/goldbook.D01752
A @B00697@ formed (actually or conceptually) by @C01329@ of two neutral moieties, the combination of which results in charge-separated structures, e.g.
D01752.png
The term is preferred to the obsolescent synonyms '@C01328@', '@C01326@', '@D01523@', 'semipolar bond'.
Source:
PAC, 1994, 66, 1077. (Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)) on page 1106 [Terms] [Paper]