Interpretation:
The strain energy has to be verified for cycloheptene molecule.
Concept introduction:
Strain energy:
Ring strain is a type of instability that exists when bonds in a molecule form angles that are abnormal. Strain is most commonly discussed for small rings such as cyclopropanes and cyclobutanes, whose internal angles are substantially smaller than the idealized value of approximately 109°.
Angle strain of cyclic molecules:
The German chemist Adolf van Baeyer, believing that all cyclic molecules like planner, proposed that the stability of a cycloalkane could be predicated by determining the difference between this ideal bond angle and the bond angle in the planner cycloalkane.
We consider the simple example of the bond angle in cyclopropane are 600 degree repressing a 45.50 degree it deviation from 109.50, it is proved from Baeyer this deviation cause angle strain which decrease respective molecules stability.
The corresponding Bond strain formula shown below
Want to see the full answer?
Check out a sample textbook solutionChapter 3 Solutions
ORGANIC CHEMISTRY 345 WSU >IP<
- The 2nd picture is an example of Alex’s answer formatarrow_forwardthe strain energy for this cyclohexane is 16kj ,why??? could anyone label out the strain energy please?where is the strain energy take place?arrow_forwardAre these equations right? The work on the top page of the second picture, came from the second problem.arrow_forward
- Plz give all answer only with little bit explanationarrow_forwardInvestigation has shown that cyclobutadiene is actually a rectangular molecule rather than a square molecule. Explain the reason for this observation.arrow_forwardCalculate strain energy for the conformer pictured below, using strain energy increments from the table.arrow_forward
- Physical ChemistryChemistryISBN:9781133958437Author:Ball, David W. (david Warren), BAER, TomasPublisher:Wadsworth Cengage Learning,Chemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage Learning