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 properties
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 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 - C2N2 (NCCN)
Isocyanogen - C2N2 (CNCN)
Paracyanogen - a cyanogen polymer, (NCCN)n
Paraisocyanogen - a cyanogen polymer, (CNCN)n
Percyanoalkynes, -alkenes and -alkanes
dicyanoacetylene - C4N2 [C2(CN)2], also called carbon subnitride or but-2-ynedinitrile
tetracyanoethylene - C6N4 [C2(CN)4]
tetracyanomethane - C5N4 [C(CN)4]
2,2-diisocyanopropanedinitrile - C5N4 [C(CN)2(NC)2]
hexacyanoethane - C8N6 [C2(CN)6]
hexacyanocyclopropane - C9N6 [C3(CN)6]
hexacyanobutadiene - C10N6 [C4(CN)6]
Dicyanopolyynes are composed of a chain of carbon atoms with alternating single and triple bonds, terminated by nitrogen atoms. Although not a polyyne dicyanoacetylene otherwise fits within this series.
dicyanobutadiyne (dicyanodiacetylene)- C6N2
dicyanohexatriyne - C8N2
C10N2
C12N2
C14N2
C16N2
C18N2
C20N2
C22N2
Perazidoalkynes, -alkenes and -alkanes
tetraazidomethane - CN12
pentacyanopyridine - C10N6
tetracyanopyrazine - C8N6
tricyanotriazine - C6N6
tetracyano-bitriazine - C10N10
dicyanotetrazine - C4N6
hexacyanotrisimidazole - C15N12
hexacyanohexaazatriphenylene - C18N12
hexacyanobenzene - C12N6
octacyanonaphthalene - C18N8
decacyanoanthracene - C24N10
cyanonitrene - CN2 [NCN]
azodicarbonitrile - C2N4 [(NCN)2]
cyanogen azide - CN4 [NC.N3]
isocyanogen tetraazide (azidoazide azide) - C2N14
triazidotriazine (cyanuric triazide) - C3N12 [C3N3(N3)3]
triazidoheptazine - C6N16 [C6N7(N3)3]
tricyanomethanimine (Dicyanomethylene-cyanamide) - C4N4 [(CN).N.C(CN)2]
diazidodicyanoethylene - C4N8 [(N3)2.C.C(CN)2]
dicyanodiazomethane - C3N4 [(CN)2.C.N2]
dicyanocarbene - C3N2 (and isomers cyanoisocyanocarbene, diisocyanocarbene, 3-cyano-2H-azirenylidene and 3-isocyano-2H-azirenylidene)
1,3,5-triazido-2,4,6-tricyanobenzene - C9N12 [C6(CN)3(N3)3]
dicyanamide - N(CN)2−
tricyanomethanide - C(CN)3−
pentacyanoethanide - C2(CN)5−
pentacyanopropenide (pentacyanoallyl anion) - C3(CN)5−
2-dicyanomethylene-1,1,3,3-tetracyanopropanediide C10N62− [(C(C(CN)2)32−]
tricyanomelaminate anion - C3N3(NCN)3]3−
melonate - C6N7(NCN)3]3−
cyanofullerene anions - C60(CN)n− (n odd) and C60(CN)n2− (n even)