Carbon nitride



Carbon nitrides are organic compounds consisting only of carbon and nitrogen atoms.

Covalent network compounds
These materials are organic semiconductors. Due to its hydrogen-bonding motifs and electron-rich properties, this carbon material is considered a potential candidate for material applications in carbon supplementation.
 * Beta carbon nitride - a solid with a formula β-C3N4, which is predicted to be harder than diamond.
 * Graphitic carbon nitride - g-C3N4, with important catalytic and sensor properties.
 * C3N5 - a combined triazole and triazine framework.
 * MCN-12 (C3N6) and MCN-13 (C3N7).

Azafullerenes

 * Azafullerenes are a class of heterofullerenes in which the element substituting for carbon is nitrogen. Examples include (C59N)2 (biazafullerenyl), C58N2 (diaza[60]fullerene), C57N3 (triaza[60]fullerene) and C48N12.

Cyanofullerenes

 * Cyanofullerenes are a class of modified fullerenes in which cyano- groups are attached to a fullerene skeleton. These have the formula C60(CN)_{2n}, where n takes the values 1 to 9.

Cyanogen

 * Cyanogen - C2N2 (N\tC\sC\tN)
 * Isocyanogen - C2N2 (−C\tN+\sC\tN)
 * Diisocyanogen - C2N2 (−C\tN+\s+N\tC−)
 * Paracyanogen - a cyanogen polymer, (NCCN)_{n}
 * Paraisocyanogen - a cyanogen polymer, (CNCN)_{n}

Percyanoalkynes, -alkenes and -alkanes

 * dicyanoacetylene - C4N2 or N\tC\sC\tC\sC\tN, also called carbon subnitride or but-2-ynedinitrile
 * tetracyanoethylene - C6N4 or (N\tC\s)2C\dC(\sC\tN)2
 * tetracyanomethane - C5N4 or C(\sC\tN)4
 * 2,2-diisocyanopropanedinitrile - C5N4 or (−C\tN+\s)2C(\sC\tN)2 also called dicyano(diisocyano)methane
 * hexacyanoethane - C8N6 or (N\tC\s)3C\sC(\sC\tN)3
 * hexacyanocyclopropane - C9N6 or cyclo-C3(CN)6
 * hexacyanobutadiene - C10N6 or (N\tC\s)2C\dC(\sC\tN)\sC(\sC\tN)\dC(\sC\tN)2

Dicyanopolyynes
Dicyanopolyynes are composed of a chain of carbon atoms with alternating single and triple bonds, terminated by nitrogen atoms. Although not a polyyne, dicyanoacetylene (N\tC\sC\tC\sC\tN) fits within this series.


 * C6N2 or N\tC(\sC\tC\s)2C\tN, dicyanobutadiyne or dicyanodiacetylene
 * C8N2 or N\tC(\sC\tC\s)3C\tN, dicyanohexatriyne or dicyanotriacetylene
 * C10N2 or N\tC(\sC\tC\s)4C\tN, dicyanooxatetrayne or dicyanotetraacetylene
 * C12N2 or N\tC(\sC\tC\s)5C\tN, dicyanodecapentayne or dicyanopentaacetylene
 * C14N2 or N\tC(\sC\tC\s)6C\tN, dicyanododecahexayne or dicyanohexaacetylene
 * C16N2 or N\tC(\sC\tC\s)7C\tN, dicyanotetradecaheptayne or dicyanoheptaacetylene
 * C18N2 or N\tC(\sC\tC\s)8C\tN, dicyanohexadecaoctayne or dicyanooctaacetylene
 * C20N2 or N\tC(\sC\tC\s)9C\tN, dicyanooctadecanonayne or dicyanononaacetylene
 * C22N2 or N\tC(\sC\tC\s)10C\tN, dicyanoicosadecayne or dicyanodecaacetylene

Perazidoalkynes, -alkenes and -alkanes

 * tetraazidomethane - CN12 or C(\sN\dN+\dN−)4

Percyanoheterocycles

 * pentacyanopyridine - C10N6
 * tetracyanopyrazine - C8N6
 * tricyanotriazine - C6N6
 * tetracyano-bitriazine - C10N10
 * dicyanotetrazine - C4N6
 * hexacyanotrisimidazole - C15N12
 * hexacyanohexaazatriphenylene - C18N12

Aromatic cyanocarbons

 * hexacyanobenzene - C12N6 or C6(CN)6
 * octacyanonaphthalene - C18N8 or C10(CN)8
 * decacyanoanthracene - C24N10 or C14(CN)10

Other compounds

 * cyanonitrene - CN2 or [N\tC\sN ⇌ −N\dC\dN+ ⇌ +N\dC\dN− ⇌ N\sC\tN] (one of the nitrogens is univalent)
 * azodicarbonitrile - C2N4 or N\tC\sN\dN\sC\tN, cis and trans isomers
 * cyanogen azide - CN4 or N\tC\sN\dN+\dN−
 * 1-diazidocarbamoyl-5-azidotetrazole - C2N14
 * 2,2′-azobis(5-azidotetrazole) - C2N16
 * triazidotriazine (cyanuric triazide) - C3N12 (C3N3(N3)3)
 * triazidoheptazine - C6N16 (C6N7(N3)3)
 * tricyanomethanimine (dicyanomethylene-cyanamide) - C4N4 or N\tC\sN\dC(\sC\tN)2
 * diazidodicyanoethylene - C4N8 or (−N\dN+\dN\s)2C\dC(\sC\tN)2 and (−N\dN+\dN\s)(N\tC\s)C\dC(\sN\dN+\dN−)(\sC\tN), cis and trans
 * dicyanodiazomethane - C3N4 or (N\tC\s)2C\dN+\dN−
 * - C3N2 or C^{II}(\sC\tN)2 (and isomers cyanoisocyanocarbene −C\tN+\sC^{II}\sC\tN, diisocyanocarbene −C\tN+\sC^{II}\s+N\tC−, 3-cyano-2H-azirenylidene and 3-isocyano-2H-azirenylidene)
 * 1,3,5-triazido-2,4,6-tricyanobenzene - C9N12 (C6(CN)3(N3)3)
 * nitrogen tricyanide N(\sC\tN)3 and carbon bis(cyanamide) N\tC\sN\dC\dN\sC\tN, two formal monomers of polymeric C3N4

Anions and functional groups

 * cyanide - −C\tN ion, cyanide \sC\tN and isocyanide \s+N\tC− functional groups
 * dicyanamide - N(CN)2− or −N(\sC\tN)2
 * tricyanomethanide - C(CN)3− or −C(\sC\tN)3
 * pentacyanoethanide - C2(CN)5− or (N\tC\s)2C−\sC(\sC\tN)3
 * pentacyanopropenide (pentacyanoallyl anion) - C3(CN)5−
 * 2-dicyanomethylene-1,1,3,3-tetracyanopropanediide C10N6(2−)
 * tricyanomelaminate anion - C3N3(NCN)3(3−)
 * melonate - C6N7(NCN)3(3−)
 * anions - C60(CN)_{n}− (n odd) and C60(CN)_{n}(2−) (n even)
 * cyanoacetlyide - C3N− or −C\tC\sC\tN
 * cyanobutadiynylide - C5N− or −C\tC\sC\tC\sC\tN
 * cyanopolyynide anions - C_{n}N− (n odd)