calixarenes
carbaboranes
carbamates
carbanions
carbena
carbenes
carbene analogues
carbene metal complexes
carbene radical anions
carbene radical cations
carbenium ions
carbenoids
carbinols
carbinolamines
carbinyl cations
carbocations
carbocyclic compounds
carbodiimides
carbohydrates
carbonitriles
carbonium ions
carbonyl compounds
carbonyl imides
carbonyl imines
carbonyl oxides
carbonyl ylides
carboranes
carboxamides
carboxamidines
carboxylic acids
carbylamines
carbynes
carbyne metal complexes
carbynium ions
carotenes
carotenoids
catecholamines
catenanes/catena compounds
cavitands
cephalins (kephalins)
cephalosporins
cephams
cephems
chalcones
charge-transfer complexes
chelates
chloramines
chlorocarbons
chlorohydrins
chloronium ions
clathrates
cobalamines
-complexes
coronands/coronates
corrinoids (cobalamines, corphyrins, corrins, vitamin B12 compounds)
coumarins
cresols
crown compounds
cryptands/cryptates
cumulenes
cyanates
cyanides
cyanine dyes
cyanohydrins
cyclic acid anhydrides/cyclic anhydrides
cyclitols
cycloalkanes
cycloalkyl groups
cyclodepsipeptides
cyclodextrins
cyclohexadienyl cations
cyclophanes
cyclosilazanes
cyclosiloxanes