
Concept explainers
Interpretation:
The amount of steric strain that is introduced into the conformer has to be calculated.
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 solution
Chapter 3 Solutions
Essential Organic Chemistry (3rd Edition)
- CUE COLUMN NOTES (A. Determine Stereoisomers it has ⑤ Identify any meso B compounds cl Br cl -c-c-c-c-¿- 1 CI C- | 2,4-Dichloro-3-bromopentanearrow_forwardThe acid-base chemistry of both EDTA and EBT are important to ensuring that the reactions proceed as desired, thus the pH is controlled using a buffer. What percent of the EBT indicator will be in the desired HIn2- state at pH = 10.5. pKa1 = 6.2 and pKa2 = 11.6 of EBTarrow_forwardWhat does the phrase 'fit for purpose' mean in relation to analytical chemistry? Please provide examples too.arrow_forward
- For each of the substituted benzene molecules below, determine the inductive and resonance effects the substituent will have on the benzene ring, as well as the overall electron-density of the ring compared to unsubstituted benzene. Molecule Inductive Effects Resonance Effects Overall Electron-Density × NO2 ○ donating O donating O withdrawing O withdrawing O electron-rich electron-deficient no inductive effects O no resonance effects O similar to benzene E [ CI O donating withdrawing O no inductive effects Explanation Check ○ donating withdrawing no resonance effects electron-rich electron-deficient O similar to benzene © 2025 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center Accesarrow_forwardUnderstanding how substituents activate Rank each of the following substituted benzene molecules in order of which will react fastest (1) to slowest (4) by electrophilic aromatic substitution. Explanation HN NH2 Check X (Choose one) (Choose one) (Choose one) (Choose one) © 2025 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center Aarrow_forwardIdentifying electron-donating and electron-withdrawing effects on benzene For each of the substituted benzene molecules below, determine the inductive and resonance effects the substituent will have on the benzene ring, as well as the overall electron-density of the ring compared to unsubstituted benzene. Inductive Effects Resonance Effects Overall Electron-Density Molecule CF3 O donating O donating O withdrawing O withdrawing O no inductive effects O no resonance effects electron-rich electron-deficient O similar to benzene CH3 O donating O withdrawing O no inductive effects O donating O withdrawing Ono resonance effects O electron-rich O electron-deficient O similar to benzene Explanation Check Х © 2025 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Centerarrow_forward
- * Hint: Think back to Chem 1 solubility rules. Follow Up Questions for Part B 12. What impact do the following disturbances to a system at equilibrium have on k, the rate constant for the forward reaction? Explain. (4 pts) a) Changing the concentration of a reactant or product. (2 pts) b) Changing the temperature of an exothermic reaction. (2 pts) ofarrow_forwardDraw TWO general chemical equation to prepare Symmetrical and non-Symmetrical ethers Draw 1 chemical reaction of an etherarrow_forwardPlease help me with the following questions for chemistry.arrow_forward
- Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage LearningOrganic And Biological ChemistryChemistryISBN:9781305081079Author:STOKER, H. Stephen (howard Stephen)Publisher:Cengage Learning,
- General, Organic, and Biological ChemistryChemistryISBN:9781285853918Author:H. Stephen StokerPublisher:Cengage LearningChemistry for Today: General, Organic, and Bioche...ChemistryISBN:9781305960060Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. HansenPublisher:Cengage Learning




