a) b) NH2 CI and and Br Br NH2 OH OH and and CI ČI f) and and g) h) Br and and

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Are the pairs of structures shown below constitutional isomers, enantiomers, diastereomers, or the same?

The image presents several pairs of chemical structures labeled from a) to h). Each pair consists of two molecular structures.

a) Two bicyclic compounds with halogen substituents. Both have chlorine (Cl) and bromine (Br) groups attached at different positions.

b) Two cyclic compounds with an amino group (NH₂) attached. One has the NH₂ group in an equatorial position, the other in an axial position.

c) Two hexagonal ring structures with hydroxyl (OH) and chlorine (Cl) substituents. The orientation of these groups differs between the two structures, indicating stereoisomerism.

d) Two triangular cyclic ether molecules (epoxides) with different stereochemistry, as indicated by the direction of the thick and dashed lines.

e) Two different alkenes with a similar linear chain but differing positions of the double bond.

f) An alkene and a cyclohexane ring. The alkene has a linear chain, while the cyclohexane is a simple ring structure.

g) Two bicyclic compounds with different structural features. One shows a bridgehead carbon in a more compact conformation.

h) Two alkyl halides with bromine (Br) and chlorine (Cl) substituents. The stereochemistry of the substituents differs, as shown by the dashed and wedged bonds.

These diagrams illustrate concepts such as stereochemistry, isomerism, and functional groups in organic chemistry.
Transcribed Image Text:The image presents several pairs of chemical structures labeled from a) to h). Each pair consists of two molecular structures. a) Two bicyclic compounds with halogen substituents. Both have chlorine (Cl) and bromine (Br) groups attached at different positions. b) Two cyclic compounds with an amino group (NH₂) attached. One has the NH₂ group in an equatorial position, the other in an axial position. c) Two hexagonal ring structures with hydroxyl (OH) and chlorine (Cl) substituents. The orientation of these groups differs between the two structures, indicating stereoisomerism. d) Two triangular cyclic ether molecules (epoxides) with different stereochemistry, as indicated by the direction of the thick and dashed lines. e) Two different alkenes with a similar linear chain but differing positions of the double bond. f) An alkene and a cyclohexane ring. The alkene has a linear chain, while the cyclohexane is a simple ring structure. g) Two bicyclic compounds with different structural features. One shows a bridgehead carbon in a more compact conformation. h) Two alkyl halides with bromine (Br) and chlorine (Cl) substituents. The stereochemistry of the substituents differs, as shown by the dashed and wedged bonds. These diagrams illustrate concepts such as stereochemistry, isomerism, and functional groups in organic chemistry.
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