Isomerism

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  • Created by: AminahS
  • Created on: 13-10-17 08:56
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  • Isomers
    • >Same molecular formulas but different structural formula
    • 3 different structural formulas
      • Chain isomer- different arrangement of the c skeletal, some straight and others branched
      • Positional isomers- same everything bar where the atom or group of atoms is attached
      • Functional group- same atoms arranged in different functional groups
    • Steroisomers
      • >Same structural formula but different arrangement in space
      • Double bonds
        • C=C bonds and atoms bonded to them all lie in the same plane (they're planar)
        • C=C cant rotate, not very flexible
        • Untitled
    • Alkenes show E/Z isomerism
      • E isomer- opposite sides
      • Z isomers- same side
      • Cahn -Ingold-Prelog priority
        • Assign a priority to the atoms attached to the C=C bond, to do this the higher atomic number is given more priority
        • To work out which isomer you have just look at how the two priority groups are arranged (on both sides)

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