There are 5 constitutional isomers possible for C₆H₁₄.

Quick Scoop: C₆H₁₄ Isomers

These five distinct constitutional (structural) isomers are:

  • n-Hexane (straight-chain 6-carbon alkane)
  • 2-Methylpentane (5-carbon chain with a methyl on C-2)
  • 3-Methylpentane (5-carbon chain with a methyl on C-3)
  • 2,2-Dimethylbutane (4-carbon chain, two methyls on C-2)
  • 2,3-Dimethylbutane (4-carbon chain, methyls on C-2 and C-3)

All of them share the same molecular formula C₆H₁₄ but differ in how the carbon atoms are connected , which is exactly what defines constitutional isomers.

[1][5][6] [5][6][1] [6][1][5] [1][5][6] [5][6][1] [6][1][5] [1][5][6] [5][6][1] [6][1][5] [1][5][6]
C₆H₁₄ constitutional isomer Type of chain
n-HexaneStraight 6-carbon chain
2-Methylpentane5-carbon chain with one methyl branch
3-Methylpentane5-carbon chain with one methyl branch (shifted position)
2,2-Dimethylbutane4-carbon chain with two methyls on the same carbon
2,3-Dimethylbutane4-carbon chain with two methyls on adjacent carbons

Information gathered from public forums or data available on the internet and portrayed here.