Stereoisomers, Enantiomers, Meso Compounds, Diastereomers, Constitutional Isomers, Cis & Trans

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  • Опубліковано 23 гру 2016
  • This organic chemistry video tutorial explains the difference between stereoisomers and constitutional isomers. It also shows you how to identify meso compounds, enantiomers, diastereomers, and cis trans geometric isomers. In addition, it discusess chirality - that is, it explains how to determine if a molecule is chiral or achiral due to the presence of an internal plane of symmetry. This stereochemistry based video contains plenty of examples and practice problems.
    Finding Chirality Centers:
    • Finding Chirality Centers
    Chiral and Achiral Molecules:
    • Chiral and Achiral Mol...
    Stereochemistry:
    • Stereochemistry - R S ...
    Enantiomers:
    • Enantiomers
    Diastereomers:
    • Diastereomers
    ______________________________
    Meso Compounds:
    • Meso Compounds
    Stereoisomers:
    • Stereoisomers
    Optical Activity & Specific Rotation:
    • Optical Activity - Spe...
    Enantiomeric Excess Test Question:
    • How To Calculate Enant...
    SN2 SN1 E1 E2 Reaction Mechanisms:
    • SN2 SN1 E1 E2 Reaction...
    ______________________________
    Alkene Reactions Review:
    • Alkene Reactions
    Alkyne Reactions Review:
    • Alkyne Reactions
    Organic Chemistry PDF Worksheets:
    www.video-tutor.net/orgo-chem...
    Organic Chemistry 1 Exam 2 Playlist:
    bit.ly/3PKEApB
    Full-Length Videos and Worksheets:
    / collections

КОМЕНТАРІ • 426

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  • @saleenanasary4243
    @saleenanasary4243 7 років тому +284

    For the last example aren't there no chiral centers because the carbon is connected to the same thing? Therefore it wouldn't be meso? It would just be an identical compound?

    • @TheOrganicChemistryTutor
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    • @shraddhadaliya4759
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      The Organic Chemistry Tutor so its indentical right....for meso it should hve chiral carbon with plane of symmetry .....isnt it???

    • @angieangie4419
      @angieangie4419 6 років тому +3

      Yeah your right :) what makes a meso compound is the fact that it has a chiral carbon with a plane of symmetry, and that all the chiral centers changed, (just like enantiomer, but with symmetry) if you break down the molecule for the last one, you'll see that its the same on both sides. A chiral center needs to have 4 different groups.

    • @ionpaul9032
      @ionpaul9032 6 років тому +1

      Meso compounds need chiral centers but, have a plane of symmetry.

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  • @eeshaalladin8812
    @eeshaalladin8812 Рік тому +43

    For the last compound, I thought they were identical molecules because there wasn't a chiral center.

    • @annviolawambui6276
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      That's what he said

    • @mercilezzz
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      He said meso but they are identical

    • @SWRfrfr
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      @@mercilezzz They can't be meso compounds because there are no chiral centres.

    • @mercilezzz
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      Meso compounds have identical stereocenters but opposite R and S configuration, they have an internal plane of symmetry

    • @SWRfrfr
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      @@mercilezzz What's a stereocenter??
      Never heard of that, I thought there were only t chiral centres.

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  • @Mariam-nm1fi
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    For the last example in the video, the compounds are NOT meso, since they lack chiral centers. A meso compound requires the presence of 2 or more chiral centers in it in addition to the plane of symmetry

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