the.com/alkyne

the triple bond holding three pairs of electrons hostage in a straight, furious line

means a hydrocarbon containing at least one carbon-carbon triple bond, the simplest being acetylene (ethyne).

from From 'alk-', the stem shared by the alkane family (itself traced back to 'alcohol', via Medieval Latin from Arabic 'al-kuhl', the powdered antimony that gave us the word for distilled spirits), plus the suffix '-yne', the chemist's deliberate signal for a triple bond — paralleling '-ane' for single and '-ene' for double bonds in the systematic naming scheme formalized by 19th-century chemists.

bond count
two atoms share three covalent bonds
geometry
forces a rigid 180-degree linear shape
acetylene
simplest alkyne burns hot enough to weld steel
naming
the -yne suffix marks the triple bond
reactivity
electron-rich and eager to add atoms back
for instance

acetylene — hc≡ch, the simplest alkyne, used in welding torches since the 1800s

diphenylacetylene — ph-c≡c-ph, common organic chemistry example in university labs

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