5. Chirality

Given two compounds with the molecular formula $C_4{H}_{10}$, one being n-butane and the other being isobutane, what is the relationship between these two compounds?

Identify the relationship between thefollowing organic compounds:

Are the following pairs identical, enantiomers, diastereomers, or constitutional isomers?

a.

b.

For each pair, give the relationship between the two compounds. Making models will be helpful.

(h)

What is the relationship between molecules $A$ and $B$ if they have the same molecular formula but different connectivity of atoms?

a. Stereoisomers with two asymmetric centers are called ___ if the configuration of both asymmetric centers in one stereoisomer is the opposite of the configuration of the symmetric centers in the other stereoisomer.

b. Stereoisomers with two asymmetric centers are called ___ if the configuration of both asymmetric centers in one stereoisomer is the same as the configuration of the asymmetric centers in the other stereoisomer.

c. Stereoisomers with two asymmetric centers are called ___ if one of the asymmetric centers has the same configuration in both stereoisomers and the other asymmetric center has the opposite configuration in the two stereoisomers.

Identify

5. achiral compounds

6. meso compounds

7. enantiomers

8. diastereomers

Draw the structure for a compound with molecular formula C₂H₂I₂F₂

a. that is optically inactive because it does not have an asymmetric center.

b. that is optically inactive because it is a meso compound.

Are the following pairs identical, enantiomers, diastereomers, or constitutional isomers?

a.

b.

Indicate whether each of the structures in the second row is an enantiomer of, is a diastereomer of, or is identical to the structure in the top row.

Identify the relationship between thefollowing organic compounds:

What type of isomerism is indicated by each of the following pairs of molecules? Be as specific as possible.

(e)

Which type of isomer relationship is likely only a correlation and not one of causation?

What type of isomerism is indicated by each of the following pairs of molecules? Be as specific as possible.

(d)

Define the relationship between each set of two molecules as chain isomers, positional isomers, functional group isomers, enantiomers, diastereomers, conformational isomers, or identical

(d)