Structural formulas of two isomers and two homologues of 2-methylbutane.

| September 11, 2021 | education

2-methylbutane is a representative of saturated hydrocarbons with the gross formula C5H12.

The structural formula is a chain of four carbon atoms with one branch per methyl group around the second carbon atom. The chain is numbered from the edge to which the branch is closer.

The two isomers of this hydrocarbon will be substances with the same gross formula, but with a different spatial structure: pentane and 2,2-dimethylpropane (neopentane). The number of isomers with the formula C5H12 is limited by these three substances.

The closest homologues will be compounds that differ by one methyl group -CH2-, called a homologous difference. For C5H12, these will be substances with the formulas C4H10 (for example, 2,3-dimethylbutane) and C6H14 (for example, 2-methylpropane).



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