Lopsided Benzene Sets A New Polarity Record | Chemical & Engineering News
Volume 94 Issue 7 | p. 23 | Concentrates
Issue Date: February 15, 2016

Lopsided Benzene Sets A New Polarity Record

Organic Synthesis: Chemists devise a method to prepare hexasubstituted benzenes with ultrastrong dipole moments
Department: Science & Technology
News Channels: Materials SCENE, Organic SCENE
Keywords: dipole moment, hexasubstituted benzene, polarity, most polar

Chemists have made a new set of hexasubstituted benzenes in which electron-withdrawing cyano groups on one side of the ring and electron-donating amino groups on the other combine to pull and push the molecule’s electron density in the same direction. These compounds are remarkable for being the most polar neutral molecules now known to exist (Angew. Chem. Int. Ed. 2016, DOI: 10.1002/anie.201508249). Organic molecules with large dipole moments are desirable for their ability to enhance . . .

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