carbanion

carbanion

[kahr-ban-ahy-uhn, -on]
noun
an organic ion containing a negatively charged carbon atom (opposed to carbonium ion ).

Origin:
1933; carb- + anion

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carbanion (kɑːˈbænaɪən)
 
n
chem Compare carbonium ion a negatively charged organic ion in which most of the negative charge is localized on a carbon atom

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Encyclopedia Britannica
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carbanion

any member of a class of organic compounds in which a negative electrical charge is located predominantly on a carbon atom. Carbanions are formally derived from neutral organic molecules by removal of positively charged atoms or groups of atoms, and they are important chiefly as chemical intermediates-that is, as substances used in the preparation of other substances. Important industrial products, including useful plastics, are made using carbanions.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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