Structure 3.2.7—Stereoisomers have the same constitution (atom identities, connectivities and bond multiplicities) but different spatial arrangements of atoms. Describe and explain the features that give rise to cis-trans isomerism; recognize it in non-cyclic alkenes and C3 and C4 cycloalkanes. Draw stereochemical formulas showing the tetrahedral arrangement around a chiral carbon. Describe and explain a chiral carbon atom giving rise to stereoisomers with different optical properties. Recognize a pair of enantiomers as non-superimposable mirror images from 3D modelling (real or virtual).

The organic product is not optically active. Discuss whether or not the organic product is a racemic mixture.

The organic product is not optically active. Discuss whether or not the organic product is a racemic mixture.

The organic product is not optically active. Discuss whether or not the organic product is a racemic mixture.

The organic product is not optically active. Discuss whether or not the organic product is a racemic mixture.

The organic product is not optically active. Discuss whether or not the organic product is a racemic mixture.

The organic product is not optically active. Discuss whether or not the organic product is a racemic mixture.

Outline why the major product, C₆H₅–CHBr–CH₃, can exist in two forms and state the relationship between these forms.

Two forms: 

Relationship:

Outline why the major product, C₆H₅–CHBr–CH₃, can exist in two forms and state the relationship between these forms.

Two forms: 

Relationship:

Outline why the major product, C₆H₅–CHBr–CH₃, can exist in two forms and state the relationship between these forms.

Two forms: 

Relationship:

Outline why the major product, C₆H₅–CHBr–CH₃, can exist in two forms and state the relationship between these forms.

Two forms: 

Relationship:

Outline why the major product, C₆H₅–CHBr–CH₃, can exist in two forms and state the relationship between these forms.

Two forms: 

Relationship:

Outline why the major product, C₆H₅–CHBr–CH₃, can exist in two forms and state the relationship between these forms.

Two forms: 

Relationship:

Identify the chiral carbon atom using an asterisk, *.

Identify the chiral carbon atom using an asterisk, *.

Identify the chiral carbon atom using an asterisk, *.

Identify the chiral carbon atom using an asterisk, *.

Enantiomers can be identified using a polarimeter. Outline how this instrument differentiates the enantiomers.

Enantiomers can be identified using a polarimeter. Outline how this instrument differentiates the enantiomers.

Enantiomers can be identified using a polarimeter. Outline how this instrument differentiates the enantiomers.

Enantiomers can be identified using a polarimeter. Outline how this instrument differentiates the enantiomers.

Label with an asterisk, *, the chiral carbon atom.

Label with an asterisk, *, the chiral carbon atom.

Label with an asterisk, *, the chiral carbon atom.

Label with an asterisk, *, the chiral carbon atom.

Outline the operation of a polarimeter used to distinguish between enantiomers.

Outline the operation of a polarimeter used to distinguish between enantiomers.

Outline the operation of a polarimeter used to distinguish between enantiomers.

Outline the operation of a polarimeter used to distinguish between enantiomers.

Which molecule has an enantiomer?

A.  ${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{CH}\left(\mathrm{OH}\right){\mathrm{CH}}_2{\mathrm{CH}}_3$

B.  ${\mathrm{CH}}_2\left(\mathrm{OH}\right){\mathrm{CH}}_2{\mathrm{CH}}_2\mathrm{CH}={\mathrm{CH}}_2$

C.  ${\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{CH}}_2\mathrm{CH}=\mathrm{CHBr}$

D.  ${\mathrm{CH}}_3{\mathrm{CHBrCH}}_2{\mathrm{CH}}_2{\mathrm{CH}}_3$

Which molecule has an enantiomer?

A.  ${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{CH}\left(\mathrm{OH}\right){\mathrm{CH}}_2{\mathrm{CH}}_3$

B.  ${\mathrm{CH}}_2\left(\mathrm{OH}\right){\mathrm{CH}}_2{\mathrm{CH}}_2\mathrm{CH}={\mathrm{CH}}_2$

C.  ${\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{CH}}_2\mathrm{CH}=\mathrm{CHBr}$

D.  ${\mathrm{CH}}_3{\mathrm{CHBrCH}}_2{\mathrm{CH}}_2{\mathrm{CH}}_3$

Which molecule has an enantiomer?

A.  ${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{CH}\left(\mathrm{OH}\right){\mathrm{CH}}_2{\mathrm{CH}}_3$

B.  ${\mathrm{CH}}_2\left(\mathrm{OH}\right){\mathrm{CH}}_2{\mathrm{CH}}_2\mathrm{CH}={\mathrm{CH}}_2$

C.  ${\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{CH}}_2\mathrm{CH}=\mathrm{CHBr}$

D.  ${\mathrm{CH}}_3{\mathrm{CHBrCH}}_2{\mathrm{CH}}_2{\mathrm{CH}}_3$

Which molecule has an enantiomer?

A.  ${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{CH}\left(\mathrm{OH}\right){\mathrm{CH}}_2{\mathrm{CH}}_3$

B.  ${\mathrm{CH}}_2\left(\mathrm{OH}\right){\mathrm{CH}}_2{\mathrm{CH}}_2\mathrm{CH}={\mathrm{CH}}_2$

C.  ${\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{CH}}_2\mathrm{CH}=\mathrm{CHBr}$

D.  ${\mathrm{CH}}_3{\mathrm{CHBrCH}}_2{\mathrm{CH}}_2{\mathrm{CH}}_3$

Identify the isomer of Compound B that exists as optical isomers (enantiomers).

Identify the isomer of Compound B that exists as optical isomers (enantiomers).

Identify the isomer of Compound B that exists as optical isomers (enantiomers).

Identify the isomer of Compound B that exists as optical isomers (enantiomers).

Identify the isomer of Compound B that exists as optical isomers (enantiomers).

Identify the isomer of Compound B that exists as optical isomers (enantiomers).