
(a)
Interpretation:
The R or S configuration to each of the chiral C atom in the given structure is to be assigned.
Concept introduction:
Enantiomers are optical isomers which can rotate the plane polarized light either clockwise or anticlockwise. These molecules must have at least one chiral C atom which is bonded with four different groups. They are assigned by R and S configuration. The R/S naming follows the Cahn-Ingold-Prelog Rules for naming the enantiomer as R or S-enantiomer. According to Cahn-Ingold-Prelog Rules assign the numbers from 1 to 4 to the groups bonded with chiral C atom on the basis of their molar mass. The essential condition is that the 4th group or atom must be below the plane means with dash line. If 1(2(3 is clockwise it will be R-configuration and if it is anticlockwise it will be S-configuration.
If the 4th number group is in plane then follow these steps.
- Swap the 4 group with the group with dash line
- Assign R/S configuration with clockwise or anticlockwise movement
- Flip the configuration to get the real configuration.
If the 4th number group is in above the plane shown by wedge line then follow these steps.
- Swap the 4 group with the group with dash line.
- Assign R/S configuration with clockwise or anticlockwise movement.
(b)
Interpretation:
The R or S configuration to each of the chiral C atom in the given structure should be assigned.
Concept introduction:
Enantiomers are optical isomers which can rotate the plane polarized light either clockwise or anticlockwise. These molecules must have at least one chiral C atom which is bonded with four different groups. They are assigned by R and S configuration. The R/S naming follows the Cahn-Ingold-Prelog Rules for naming the enantiomer as R or S-enantiomer. According to Cahn-Ingold-Prelog Rules assign the numbers from 1 to 4 to the groups bonded with chiral C atom on the basis of their molar mass. The essential condition is that the 4th group or atom must be below the plane means with dash line. If 1(2(3 is clockwise it will be R-configuration and if it is anticlockwise it will be S-configuration.
If the 4th number group is in plane then follow these steps.
- Swap the 4 group with the group with dash line
- Assign R/S configuration with clockwise or anticlockwise movement
- Flip the configuration to get the real configuration.
If the 4th number group is in above the plane shown by wedge line then follow these steps.
- Swap the 4 group with the group with dash line.
- Assign R/S configuration with clockwise or anticlockwise movement.

Want to see the full answer?
Check out a sample textbook solution
Chapter 26 Solutions
General Chemistry: Principles and Modern Applications (11th Edition)
- I am struggling with the IUPAC (sys H Reply ☑Mark as Unreadarrow_forwardDon't used hand raiting and don't used Ai solution and correct answerarrow_forwardH R Part: 1/2 :CI: is a/an electrophile Part 2 of 2 Draw the skeletal structure of the product(s) for the Lewis acid-base reaction. Include lone pairs and formal charges (if applicable) on the structures. 4-7: H ö- H Skip Part Check X :C1: $ % L Fi Click and drag to start drawing a structure. MacBook Pro & ㅁ x G 0: P Add or increase positive formal cha Save For Later Submit ©2025 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Centearrow_forward
- Draw the friedel-crafts acylation mechanism of m-Xylenearrow_forwardDon't used hand raiting and don't used Ai solutionarrow_forward1. Base on this experimental results, how do you know that the product which you are turning in is methyl 3-nitrobenzoate(meta substituted product ) rather than either of the other two products? 2. What observation suggests that at least a small amount of one or both of the other two isomers are in the mother liquor?arrow_forward
- Explain Huckel's rule.arrow_forwardhere is my question can u help me please!arrow_forwardSo I need help with understanding how to solve these types of problems. I'm very confused on how to do them and what it is exactly, bonds and so forth that I'm drawing. Can you please help me with this and thank you very much!arrow_forward
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistryChemistryISBN:9781259911156Author:Raymond Chang Dr., Jason Overby ProfessorPublisher:McGraw-Hill EducationPrinciples of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning
- Organic ChemistryChemistryISBN:9780078021558Author:Janice Gorzynski Smith Dr.Publisher:McGraw-Hill EducationChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningElementary Principles of Chemical Processes, Bind...ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY





