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Many hypothetical oxocarbons have been studied by theoretical methods but have yet to be detected. Examples include oxalic anhydride (C 2 O 3 or O=(C 2 O)=O), ethylene dione (C 2 O 2 or O=C=C=O) [ 17 ] and other linear or cyclic polymers of carbon monoxide (-CO-) n ( polyketones ), [ 18 ] and linear or cyclic polymers of carbon dioxide (-CO 2 ...
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As a rule, however, these neutral oxocarbons are less stable than the corresponding anions. Thus, for example, the stable carbonate anion corresponds to the extremely unstable neutral carbon trioxide CO 3; [2] oxalate C 2 O 2− 4 correspond to the even less stable 1,2-dioxetanedione C 2 O 4; [3] and the stable croconate anion C 5 O 2−
A polycarbonate is an oxocarbon dianion consisting of a chain of carbonate units, where successive carbonyl groups are directly linked to each other by shared additional oxygen atoms.
In chemistry, peroxydicarbonate (sometimes peroxodicarbonate) is a divalent anion with the chemical formula C 2 O 2− 6.It is one of the oxocarbon anions, which consist solely of carbon and oxygen.
Ethylene dione or ethylenedione, also called dicarbon dioxide, Carbon peroxide, ethenedione, or ethene-1,2-dione, is a chemical compound with the formula C 2 O 2 or O=C=C=O.It is an oxide of carbon (an oxocarbon), and can be described as the carbon-carbon covalent dimer of carbon monoxide. [1]
In chemistry, peroxycarbonate (sometimes peroxocarbonate, IUPAC name: oxocarbonate or oxidocarbonate) or percarbonate is a divalent anion with formula CO 2− 4.It is an oxocarbon anion that consists solely of carbon and oxygen.
Carbon suboxide, or tricarbon dioxide, is an organic, oxygen-containing chemical compound with formula C 3 O 2 and structure O=C=C=C=O.Its four cumulative double bonds make it a cumulene.