page_title: Graphyne
hierarchical_section_title: Graphyne
caption_attribution_description: Different types of graphyne sheets. Each graphyne is named with an index “n” which indicates the number of carbon-carbon triple bonds in a link between two adjacent hexagons.
context_page_description: Graphyne is an allotrope of carbon. Its structure is one-atom-thick planar sheets of sp and sp²-bonded carbon atoms arranged in crystal lattice. It can be seen as a lattice of benzene rings connected by acetylene bonds. Depending on the content of acetylene groups, graphyne can be considered a mixed hybridization, spⁿ, where 1 < n < 2, and thus differs from the hybridization of graphene and diamond.
  The existence of graphyne was conjectured before 1960, and attracted attention after the discovery of fullerenes.
  Although not yet synthesized, periodic graphyne structures and their boron nitride analogues were shown to be stable on the basis of first-principles calculations using phonon dispersion curves and ab-initio finite temperature, quantum mechanical molecular dynamics simulations.
context_section_description: Graphyne is an allotrope of carbon. Its structure is one-atom-thick planar sheets of sp and sp²-bonded carbon atoms arranged in crystal lattice. It can be seen as a lattice of benzene rings connected by acetylene bonds. Depending on the content of acetylene groups, graphyne can be considered a mixed hybridization, spⁿ, where 1 < n < 2, and thus differs from the hybridization of graphene (considered pure sp²) and diamond (pure sp³).
  The existence of graphyne was conjectured before 1960, and attracted attention after the discovery of fullerenes.
  Although not yet synthesized, periodic graphyne structures and their boron nitride analogues were shown to be stable on the basis of first-principles calculations using phonon dispersion curves and ab-initio finite temperature, quantum mechanical molecular dynamics simulations.
caption: Graphyne-n varieties, where n indicates the number of carbon-carbon triple bonds in a link between two adjacent hexagons. Graphyne is graphyne-1; graphdiyne is graphyne-2.
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