A carbanion is an anion in which carbon has an unshared pair of electrons and bears a negative charge usually with three substituents for a total of eight valence electrons. The carbanion exists in a trigonal pyramidal geometry. Formally, a carbanion is the conjugate base of a carbon acid. where B stands for the base. A carbanion is one of several...
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http://en.wikipedia.org/wiki/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 ...
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http://www.britannica.com/eb/a-z/c/22
Generic name for anions containing an even number of electrons and having an unshared pair of electrons on a tervalent carbon atom (e.g. Cl
3C
- or HCC
-) or - if the ion is mesomeric (see mesomerism) - having at least one significant contributing structure with an unshared pair of electrons on a tervalent carbon atom,...
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http://www.chem.qmul.ac.uk/iupac/gtpoc/CaCl.html
This is an abbreviation of carbon anion, and is applied to negatively charged ions that are believed to occur during organic reactions. The carbanion then reacts with positive species to produce new products. To acquire a negative carbon ion it is neces
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http://www.chemicalglossary.net/definition/412-Carbanion
An organic ion carrying a negative charge on a carbon atom.
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http://www.chemistry-dictionary.com/definition/carbanion.php
An anion where the negative charge is localised on a carbon atom is imaginatively called a carbanion. The best way to generate a carbanion is to remove a H+ ion from a hydrocarbon. Since carbanions are conjugate bases to very very very weak acids indeed, they are fiendishly reactive bases.
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An organic ion carrying a negative charge on a carbon atom.
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http://www.encyclo.co.uk/local/20728
<chemistry> A negatively charged carbon atom. ... (07 Apr 1998) ...
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http://www.encyclo.co.uk/local/20973
This is an abbreviation of 'carbon anion', and is applied to negatively charged ions that are believed to occur during organic reactions. The carbanion then reacts with positive species to produce new products. To acquire a negative carbon ion it is necessary for the atom to retain two electrons forming a bond between itself and another group - see below:
...
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Type: Term Pronunciation: karb-an′ī-on Definitions: 1. An organic anion in which the negative charge is on a carbon atom; the specific names are formed by adding -ide, -diide, etc., to the name of the parent compound; methanide, (CH
3)−.
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