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[kahr-been] /ˈkɑr bin/
the radical CH 2 and its derivatives.
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Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for car bene


(chem) a neutral divalent free radical, such as methylene: CH2
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Encyclopedia Article for car bene


any member of a class of highly reactive molecules containing divalent carbon atoms-that is, carbon atoms that utilize only two of the four bonds they are capable of forming with other atoms. Occurring usually as transient intermediates during chemical reactions, they are important chiefly for what they reveal about chemical reactions and molecular structure. In addition, some chemical compounds, particularly those in which the molecules contain carbon atoms arranged in small rings, can best be prepared by the use of carbenes.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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