Quiz - Absolute Configuration | Stereoisomers

Organic Chemistry 1 - Quiz - Absolute Configuration

1

What are the absolute configurations of these two molecules?     

The direction of rotation of the 1-2-3 sequence is clockwise. The absolute configuration of these two molecules is R

2

What is the absolute configuration of the two carbon atoms in this compound?     

How to assign R or configuration:

  1. Identify the 4 atoms attached to the chirality center and prioritize them by atomic number

  2. Orient the molecule with the lowest priority group towards the back (dashed line)

  3. Identify the direction of rotation of the 1-2-3 sequence: clockwise is R, counterclockwise is S

 

3

What is the absolute configuration of the two carbon atoms in this compound?     

How to assign R or configuration:

  1. Identify the 4 atoms attached to the chirality center and prioritize them by atomic number

  2. Orient the molecule with the lowest priority group towards the back (dashed line)

  3. Identify the direction of rotation of the 1-2-3 sequence: clockwise is R, counterclockwise is S

4

What is the structure of (S)-3-methylhexane?

One of the carbon atoms of (S)-3-methylhexane is connected to 4 different substituents. This compound has a chiral center.

5

Which molecule has the R absolute configuration?

6

What is the absolute configuration of the two carbon atoms in this compound?     

How to assign R or configuration:

  1. Identify the 4 atoms attached to the chirality center and prioritize them by atomic number

  2. Orient the molecule with the lowest priority group towards the back (dashed line)

  3. Identify the direction of rotation of the 1-2-3 sequence: clockwise is R, counterclockwise is S