Though it is highly unlikely, has any carbon compound been found to make an ionic bond and to exhibit ionic properties?
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5$\begingroup$ Graphene oxide is not ionic at all. There are, though, certain intercalation compounds which are truly ionic with (+) on carbon sheets. $\endgroup$ – Ivan Neretin Nov 13 '15 at 6:44
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1$\begingroup$ madsci.org/posts/archives/2000-09/967952226.Ch.r.html Check this link. Hope it will cover your Question $\endgroup$ – Urooj Arshad Nov 16 '15 at 8:10
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$\begingroup$ @steveverrill I mean by the transfer of electrons, like what you see in NaF. When the ionic character is greater than the covalent one. $\endgroup$ – Harshit Garg Nov 16 '15 at 17:44
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$\begingroup$ see this- chemistry.stackexchange.com/questions/9212/… $\endgroup$ – Nilay Ghosh Apr 11 '16 at 10:04
Why unlikely? Ionic compounds of carbon have been known for ages. There are ionic carbides ($\ce{Al4C3}$, $\ce{CaC2}$, etc.), graphite intercalation compounds like $\ce{KC8}$, ionic derivatives of fullerenes and more.
Come to think of it, common $\ce{CaCO3}$ is certainly ionic and at the same time a compound of carbon, but this is most likely not what you want.
There is also the classical case of the aromatic carbocations and carbanions; examples include tropylium bromide,
and sodium cyclopentadienide, which is used for preparing "sandwich compounds", among other uses.
Perhaps what you meant to ask was
Are there any known organic compounds with ionic bonds?
Organic salts would be examples of organic compounds with ionic bonds. Here is a list of organic salts.