Acetylide

Acetylide, also known as ethynide, dicarbide, and percarbide, is an ion. Its chemical formula is C₂^2-. It is made by deprotonation of acetylene. Some acetylides (chemical compounds contain acetylide ions) are explosive. Many acetylides are used in organic chemistry. Some are known as carbides. Copper(I) acetylide is an example.

Acetylide Media

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  Structure of the cluster formed from PhC2Li complexed to N,N,N′,N′-tetramethyl-1,6-diaminohexane (methylene groups omitted for clarity). Color key: turquoise = Li, blue = N.

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  Structure of Na2C2. Color code: gray = C, blue = Na.

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  Portion of the structure of the polymer copper phenylacetylide (CuC2C6H5).

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  Reaction of ethyl propiolate with n-butyllithium to form the lithium acetylide.