methylcyclohexane

chemical compound

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June 30, 2026

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Methylcyclohexane is a cycloalkane, a type of hydrocarbon with a ring structure. Its general formula is C_nH_2n, meaning it has two fewer hydrogen atoms than a corresponding alkane with the same number of carbon atoms. Cyclohexane, with the formula C₆H₁₂, is the most studied and important cycloalkane. Methylcyclohexane is a derivative of cyclohexane where one hydrogen atom is replaced by a methyl group.12

Cyclohexane exists primarily in a stable "chair" conformation, where the carbon-hydrogen bonds are staggered. This conformation minimizes both angle strain and torsional strain. In methylcyclohexane, the methyl group can occupy either an axial or an equatorial position on the ring. The equatorial position is more stable due to less steric hindrance, making it the predominant conformation.12

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hydrocarbon
Cycloalkanes
In methylcyclohexane, the chair conformation in which the large methyl group is equatorial is the most stable and, therefore, the most populated of all possible conformations. At any instant, almost all the methylcyclohexane molecules in a given sample exist in chair conformations, and about 95 percent…
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In methylcyclohexane, the chair conformation in which the large methyl group is equatorial is the most stable and, therefore, the most populated of all possible conformations. At any instant, almost all the methylcyclohexane molecules in a given sample exist in chair conformations, and about 95 percent…
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isomerism
Conformational isomers
In methylcyclohexane, for example, there are two conformational isomers, one with the methyl group axial and one with the methyl group equatorial. The two interconvert through ring flipping.
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In methylcyclohexane, for example, there are two conformational isomers, one with the methyl group axial and one with the methyl group equatorial. The two interconvert through ring flipping.
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chemical compound
Carbon-13 magnetic resonance spectroscopy
…spectrum of the cyclic hydrocarbon methylcyclohexane serves as a useful example of ¹³C NMR spectroscopy. The chemical shifts of different carbon atoms are larger than for hydrogen atoms, and the five magnetically different ¹³C atoms appear as five distinct peaks. Unlike proton spectra, however, the peak areas are not directly…
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…spectrum of the cyclic hydrocarbon methylcyclohexane serves as a useful example of ¹³C NMR spectroscopy. The chemical shifts of different carbon atoms are larger than for hydrogen atoms, and the five magnetically different ¹³C atoms appear as five distinct peaks. Unlike proton spectra, however, the peak areas are not directly…
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