Alkyne

${\ce {H-C#C}}{\ce {-H}}$

${\ce {H-C#C}}{-}{\ce {\overset {\displaystyle {H} \atop |}{\underset {| \atop \displaystyle {H}}{C}}}}{\ce {-H}}$

${\ce {H-C#C}}{-}{\ce {\overset {\displaystyle {H} \atop |}{\underset {| \atop \displaystyle {H}}{C}}}}{-}{\ce {\overset {\displaystyle {H} \atop |}{\underset {| \atop \displaystyle {H}}{C}}}}{\ce {-H}}$

1-Butyne

A 3D model of ethyne (acetylene), the simplest alkyne

In organic chemistry, an alkyne is an unsaturated hydrocarbon containing at least one carbon—carbon triple bond.^[1] The simplest acyclic alkynes with only one triple bond and no other functional groups form a homologous series with the general chemical formula C_nH_2n−2. Alkynes are traditionally known as acetylenes, although the name acetylene also refers specifically to C₂H₂, known formally as ethyne using IUPAC nomenclature. Like other hydrocarbons, alkynes are generally hydrophobic.^[2]

^ Alkyne. Encyclopædia Britannica
^ Saul Patai, ed. (1978). The Carbon–Carbon Triple Bond. Vol. 1. John Wiley & Sons. ISBN 9780470771563.

[1] Alkyne. Encyclopædia Britannica

[2] Saul Patai, ed. (1978). The Carbon–Carbon Triple Bond. Vol. 1. John Wiley & Sons. ISBN 9780470771563.

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