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coplanar propane and cyclohexane

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  • hoay's Avatar
    189 posts since Jul '11
    • In both propane and cyclohexane all Carbon atoms are sp3 hybridized. But in cyclohexane not all carbon atoms lie in the sme plane as in propane?

  • Moderator
    H2 Chemistry @ BedokFunland JC (near VJC & TJC)
    UltimaOnline's Avatar
    15,001 posts since May '05
    • Originally posted by hoay:

      In both propane and cyclohexane all Carbon atoms are sp3 hybridized. But in cyclohexane not all carbon atoms lie in the sme plane as in propane?


      Correct.

      3 points of a triangle will always be on the same plane.

  • hoay's Avatar
    189 posts since Jul '11
  • Moderator
    H2 Chemistry @ BedokFunland JC (near VJC & TJC)
    UltimaOnline's Avatar
    15,001 posts since May '05
    • Originally posted by hoay:

      i want to know why. both are sp3 hybridized. butane will have coplanar carbon also?


      No. Only 2 points (ie. a line) and 3 points (ie. a triangle) will have all points on the same plane.

  • hoay's Avatar
    189 posts since Jul '11
    • okay. nice summary.

      It means cyclopropane will be coplanar.

      but not cyclobutane and not methylpropane.

  • Moderator
    H2 Chemistry @ BedokFunland JC (near VJC & TJC)
    UltimaOnline's Avatar
    15,001 posts since May '05
    • Originally posted by hoay:

      okay. nice summary.

      It means cyclopropane will be coplanar.

      but not cyclobutane and not methylpropane.


      Considering C atoms only, yes. If include H atoms, none of the molecules are co-planar, due to the C atoms being sp3.

  • hoay's Avatar
    189 posts since Jul '11
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