What is flat isomerism?

Isomerism flat it is a phenomenon that occurs between substances that have the same molecular formula, but present specific differences in their structural formulas, such as:

• Show groups that belong to organic functions many different;

• present carbon chains different (saturated or unsaturated, homogeneous or heterogeneous, normal or branched, open or closed);

• They have components (such as double or triple bonds, branches or functional groups) in different positions;

Know the types of plane isomerism:

→ flat function isomer

is the type of flat isomerism where there are compounds of the same molecular formula but with different chemical functions. For example:

Ethanol and methyl ether are functional isomers

Ethanol (C₂H₆O), a type of alcohol, and methyl ether (C₂H₆O), a type of ether, are functional isomers because they have different chemical functions (ether and alcohol).

→ Position plane isomer

is the type of flat isomerism where we have compounds with the same molecular formula, same chemical function, same type of carbon chain, but at least one item (functional group, unsaturation, or branch) is in different positions in your structures.

But-1-ene and but-2-ene are position isomers

But-1-ene (C₄H₈) and but-1-ene (C₄H₈), unsaturated hydrocarbons, are position isomers because they have the double bond at different positions in the chain (positions 1 and 2).

→ Flat chain isomer

is the type of flat isomerism where we have compounds with the same molecular formula, the same chemical function, but different types of carbon chains. For example:

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But-1-ene and cyclobutane are chain isomers

But-1-ene (C₄H₈) and cyclobutane (C₄H₈), unsaturated hydrocarbons, are chain isomers because they have an open and closed chain, respectively.

→ Compensation flat isomer or metamerism

It's a kind of flat isomerismof position which involves compounds of the same molecular formula, with heterogeneous carbon chains and different chemical functions.

Ethyl ethanoate and methyl propanoate are compensating isomers

Ethyl ethanoate (C₄H₈O₂) and methyl propanoate (C₄H₈O₂), unsaturated esters, are metameric isomers because they have a heterogeneous carbon chain.

→ Flat isomer of tautomery

is the type of flat isomerism ofoccupation in which the compounds involved have the same molecular formula and are necessarily an enol and an aldehyde or an enol and a ketone. This is because enols are extremely unstable compounds, and when they decompose, they turn into an aldehyde or a ketone.

Ethanol and ethanal are tautomeric isomers

Ethenol is an enol, therefore, it is an unstable compound that, when decomposed, forms the aldehyde ethanal in a reversible decomposition process.

By Me. Diogo Lopes Dias

Would you like to reference this text in a school or academic work? Look:

DAYS, Diogo Lopes. "What is flat isomerism?"; Brazil School. Available in: https://brasilescola.uol.com.br/o-que-e/quimica/o-que-e-isomeria-plana.htm. Accessed on June 28, 2021.