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ORGANIC CHEMISTRY: Conformation and energy of stereo-isomers

ORGANIC CHEMISTRY: Conformation and energy of stereo-isomers

Eclipsed and Staggered and Cis and Trans isomers
Created bySamuel Sarsah
Last updated 3/2020
English

What you'll learn

  • How to draw newman projections and cyclohexane derivatives and use them to determine the most stable conformation of molecules

Course content

1 section • 16 lectures • 1h 6m total length

  • Introduction1:59

    This explains the importance of the contents of the course ( Newman projections and cyclohexane conformations)

  • Newman Projections (I)3:13

    This shows how to draw simple Newman projection structure using ethane

  • Newman projection (II)3:34

    This shows how to write Newman projection using propane and introduces staggered and eclipsed conformations

  • Newman projection (III)3:03

    How to draw Newman projection of Butane

  • Newman projection (IV)3:01

    This describes different conformations possible in Newman projections; Staggered , Eclipsed , Anti and Gauche

  • Newman projection (V)5:04

    This contains the relative energy profile of the conformers of Newman projections

  • Cyclohexane Conformations (I)3:56

    This shows how to draw the chair conformations for cyclohexane

  • Cyclohexane Conformations (II)5:57

    Mono-substitution and how it affects the energy of cyclohexane conformations ( 1,3-diaxial interactions)

  • Cyclohexane Conformations ( III)6:07

    Conformational isomers of 1,4-di-substitution of cyclohexane

  • Cyclohexane Conformations (IV)3:52

    This shows how to determine the relative energies of 1,4-di-substituted cyclohexane conformers

  • Cyclohexane Conformations (V)3:09

    Conformations of 1,3-di-substituted cyclohexane

  • Cyclohexane Conformations (VI)6:51

    How to determine the relative energy of 1,3-di-substituted cyclohexane conformers

  • Cyclohexane Conformation (VII)3:31

    This shows the conformers of 1,2-di-substituted cyclohexane

  • Cyclohexane Conformations (VIII)6:39

    This explains the relative energies of 1,2-di-substituted cyclohexane conformers

  • Cyclohexane Conformations (Summary and other conformations)5:38

    Table showing how different conformers and substitutions compare to each other and why the boat conformation of cyclohexane is higher energy than the chair conformation.

  • Homework : Questions and Answers0:26

    Questions and Answers for the course .

Requirements

  • High school chemistry and first year college undergraduate chemistry

Description

This course will help students to understand and write Newman projections for straight chain organic molecules as well as writing conformations for different cyclohexane chair derivatives . Students should be able to complete the course and solve similar problems with other organic molecules. This examples that are used in the video lectures are very common and this has been explained with extra clarity  details  easy enough for students to understand.

Who this course is for:

  • undergraduate and graduate students, pre-med, pre-nursing , pre-pharmacy and any student who has to take organic chemistry

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