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Conformations, Conformational Analysis, and Stereochemistry in Organic Chemistry

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Conformations

  • Understanding what a conformer is.
    03:29

Newman Projections – Conformational Energy

  • How to draw a Newman Projection Energy Diagram.
    07:27
  • How sigma bond rotation is visualized
    03:11
  • The energy states of 3 different Newman Projections.
    03:51

Barrier To Rotation

  • 4 Values You Should Memorize
    02:54
  • Determining energy cost of eclipsed interaction
    03:00

Heat of Combustion

  • Understanding Heat of Combustion
    01:11
  • What is torsional strain?
    02:00
  • Lowest Heat of Combustion
    02:34

Cyclohexane – Chairs and Positions

  • What is a chair conformation?
    01:05
  • How chairs flip from one conformation to another
    02:22
  • How chairs flip from one conformation to another
    04:26

Cyclohexane – Determination of Cis and Trans

  • Is the following cyclohexane cis or trans?
    00:44
  • How to draw chairs.
    01:18
  • Is the following cyclohexane cis or trans?
    00:27

Equatorial Preference

  • Equatorial Preference
    04:02
  • Draw the following chair in the most stable conformation.
    03:17

Chair Flip

  • The 3 important factors when drawing chairs
    05:12

A-Values

  • Calculating Chair Equilibrium
    06:27

Decalin

  • How to determine the stability of a decalin.
    03:52
  • Draw the following decalin as a chair conformation in the most stable conformation.
    03:14

Chirality

  • Drawing Mirror Images and Determining Chirality
    03:24
  • What is chirality?
    05:10
  • Drawing Mirror Images and Determining Chirality
    03:44

Chirality Test 1 - Internal Line of Symmetry

  • Determining Chirality with Plane of Symmetry
    00:25
  • Determining Chirality with Plane of Symmetry
    01:10
  • How and when to use the internal line of symmetry test.
    01:25

Chirality Test 2 - Stereocenters

  • Determining Chirality using Stereocenter
    02:25
  • Determining Chirality using Stereocenter
    00:36
  • The difference between chiral and trigonal centers.
    02:38

Cahn-Ingold-Prelog Nomenclature

  • R and S Naming- Step 4
    03:07
  • Why stereoisomers need their own naming system.
    01:48
  • Determining Priorities
    01:19

Types of Stereoisomers

  • Determine total number of stereoisomers
    00:49
  • How to predict the total number of stereoisomers.
    01:03
  • Draw stereoisomers and determine relationship
    07:41

Meso Compounds

  • Defining meso compounds.
    01:40
  • The 3 rules of meso compounds.
    04:10
  • Which of the following molecules are meso?
    03:44

Chirality Test 3 - Disubstituted Cycloalkanes Shortcuts

  • Is the following disubstituted cyclobutane chiral?
    00:35
  • Three types of disubstituted cycloalkanes
    03:52
  • Is the following disubstituted cyclopropane chiral?
    00:22