The energy associated with single H-H eclipsed interaction should be determined. Concept introduction: Various interconvertible forms that result from rotation around the C–C bind in ethane are termed as conformer. To depict such conformation Newman projections are written. These are obtained by conversion of hashed-wedged line structure simply when molecule is viewed in a plane along the C–C as illustrated below: For example, energetics of rotation about the C–C bond for 2,3-dimethylbutane is similar to the potential energy diagram of butane except for the added methyl groups at second and third carbon. Because of relatively more bulkiness in the system compared to butane, the energy differences between the anti and all other conformations will increase, with the greatest increase at 180 ° .

Question

3. Draw the dash-wedge structure for the following molecules. 1 C₂H₂ C₂H₂ S H CH₂ 1 H Br H Cl * H H 4. Arrange the structures in the increasing order of stability CH₂ C₂H₂ C₂M₂ C₂H₂ H C₂H₂ *馬來西 H C₂H₂ H C₂H₂ CHy CH₂ IV || |||

Answer 1

Question

Chapter 2, Problem 53P

(a)

Interpretation Introduction

Interpretation: The energy associated with single H-H eclipsed interaction should be determined.

Concept introduction: Various interconvertible forms that result from rotation around the C–C bind in ethane are termed as conformer. To depict such conformation Newman projections are written. These are obtained by conversion of hashed-wedged line structure simply when molecule is viewed in a plane along the C–C as illustrated below:

For example, energetics of rotation about the C–C bond for 2,3-dimethylbutane is similar to the potential energy diagram of butane except for the added methyl groups at second and third carbon.

Because of relatively more bulkiness in the system compared to butane, the energy differences between the anti and all other conformations will increase, with the greatest increase at 180 ° .

(b)

Interpretation Introduction

Interpretation: The energy associated with single CH3-H eclipsed interaction should be determined.

Concept introduction: Various interconvertible forms that result from rotation around the C–C bind in ethane are termed as conformer. To depict such conformation Newman projections are written. These are obtained by conversion of hashed-wedged line structure simply when molecule is viewed in a plane along the C–C as illustrated below:

For example energetics of rotation about the C–C bond for 2,3-dimethylbutane is similar to the potential energy diagram of butane except for the added methyl groups at second and third carbon.

(c)

Interpretation Introduction

Interpretation: The energy associated with single methyl-methyl eclipsed interaction should be determined.

Concept introduction: Various interconvertible forms that result from rotation around the C–C bind in ethane are termed as conformer. To depict such conformation Newman projections are written. These are obtained by conversion of hashed-wedged line structure simply when molecule is viewed in a plane along the C–C as illustrated below:

For example energetics of rotation about the C–C bond for 2,3-dimethylbutane is similar to the potential energy diagram of butane except for the added methyl groups at second and third carbon.

(d)

Interpretation Introduction

Interpretation: The energy associated with single methyl-methyl gauche interaction should be determined.

Concept introduction: Various interconvertible forms that result from rotation around the C–C bind in ethane are termed as conformer. To depict such conformation Newman projections are written. These are obtained by conversion of hashed-wedged line structure simply when molecule is viewed in a plane along the C–C as illustrated below:

For example energetics of rotation about the C–C bond for 2,3-dimethylbutane is similar to the potential energy diagram of butane except for the added methyl groups at second and third carbon.

Because of relatively more bulkiness in the system compared to butane, the energy differences between the anti and all other conformations will increase, with the greatest increase at 180 ° .

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3. Draw the dash-wedge structure for the following molecules. 1 C₂H₂ C₂H₂ S H CH₂ 1 H Br H Cl * H H 4. Arrange the structures in the increasing order of stability CH₂ C₂H₂ C₂M₂ C₂H₂ H C₂H₂ *馬來西 H C₂H₂ H C₂H₂ CHy CH₂ IV || |||

16. Choose the correct New- man projection that cor- responds to point A on the graph of chemical potential energy vs. tation about the C2-C3 ro- bond of butane. A) H H CH3 H CH3 B) H 个 Potential Energy H H CH3 d CH3 H H 0 A 60 C) HH 120 180 240 300 Degrees rotation →→→→ H CH3 CH3 H 360 H3C CH3 пон D) H A H H

There are several aromatic compounds with the formula CgH9Cl. Draw those that have a disubstituted ring where the chlorine is attached to the ring. • You do not have to consider stereochemistry. • Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right corner. • Separate structures with + signs from the drop-down menu.

Answer 2

Question

Chapter 2, Problem 53P

(a)

Interpretation Introduction

Interpretation: The energy associated with single H-H eclipsed interaction should be determined.

Concept introduction: Various interconvertible forms that result from rotation around the C–C bind in ethane are termed as conformer. To depict such conformation Newman projections are written. These are obtained by conversion of hashed-wedged line structure simply when molecule is viewed in a plane along the C–C as illustrated below:

For example, energetics of rotation about the C–C bond for 2,3-dimethylbutane is similar to the potential energy diagram of butane except for the added methyl groups at second and third carbon.

Because of relatively more bulkiness in the system compared to butane, the energy differences between the anti and all other conformations will increase, with the greatest increase at 180 ° .

(b)

Interpretation Introduction

Interpretation: The energy associated with single CH3-H eclipsed interaction should be determined.

Concept introduction: Various interconvertible forms that result from rotation around the C–C bind in ethane are termed as conformer. To depict such conformation Newman projections are written. These are obtained by conversion of hashed-wedged line structure simply when molecule is viewed in a plane along the C–C as illustrated below:

For example energetics of rotation about the C–C bond for 2,3-dimethylbutane is similar to the potential energy diagram of butane except for the added methyl groups at second and third carbon.

(c)

Interpretation Introduction

Interpretation: The energy associated with single methyl-methyl eclipsed interaction should be determined.

Concept introduction: Various interconvertible forms that result from rotation around the C–C bind in ethane are termed as conformer. To depict such conformation Newman projections are written. These are obtained by conversion of hashed-wedged line structure simply when molecule is viewed in a plane along the C–C as illustrated below:

For example energetics of rotation about the C–C bond for 2,3-dimethylbutane is similar to the potential energy diagram of butane except for the added methyl groups at second and third carbon.

(d)

Interpretation Introduction

Interpretation: The energy associated with single methyl-methyl gauche interaction should be determined.

Concept introduction: Various interconvertible forms that result from rotation around the C–C bind in ethane are termed as conformer. To depict such conformation Newman projections are written. These are obtained by conversion of hashed-wedged line structure simply when molecule is viewed in a plane along the C–C as illustrated below:

For example energetics of rotation about the C–C bond for 2,3-dimethylbutane is similar to the potential energy diagram of butane except for the added methyl groups at second and third carbon.

Because of relatively more bulkiness in the system compared to butane, the energy differences between the anti and all other conformations will increase, with the greatest increase at 180 ° .

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Answer 3

Question

Chapter 2, Problem 53P

(a)

Interpretation Introduction

Interpretation: The energy associated with single H-H eclipsed interaction should be determined.

Concept introduction: Various interconvertible forms that result from rotation around the C–C bind in ethane are termed as conformer. To depict such conformation Newman projections are written. These are obtained by conversion of hashed-wedged line structure simply when molecule is viewed in a plane along the C–C as illustrated below:

For example, energetics of rotation about the C–C bond for 2,3-dimethylbutane is similar to the potential energy diagram of butane except for the added methyl groups at second and third carbon.

Because of relatively more bulkiness in the system compared to butane, the energy differences between the anti and all other conformations will increase, with the greatest increase at 180 ° .

(b)

Interpretation Introduction

Interpretation: The energy associated with single CH3-H eclipsed interaction should be determined.

Concept introduction: Various interconvertible forms that result from rotation around the C–C bind in ethane are termed as conformer. To depict such conformation Newman projections are written. These are obtained by conversion of hashed-wedged line structure simply when molecule is viewed in a plane along the C–C as illustrated below:

For example energetics of rotation about the C–C bond for 2,3-dimethylbutane is similar to the potential energy diagram of butane except for the added methyl groups at second and third carbon.

(c)

Interpretation Introduction

Interpretation: The energy associated with single methyl-methyl eclipsed interaction should be determined.

Concept introduction: Various interconvertible forms that result from rotation around the C–C bind in ethane are termed as conformer. To depict such conformation Newman projections are written. These are obtained by conversion of hashed-wedged line structure simply when molecule is viewed in a plane along the C–C as illustrated below:

For example energetics of rotation about the C–C bond for 2,3-dimethylbutane is similar to the potential energy diagram of butane except for the added methyl groups at second and third carbon.

(d)

Interpretation Introduction

Interpretation: The energy associated with single methyl-methyl gauche interaction should be determined.

Concept introduction: Various interconvertible forms that result from rotation around the C–C bind in ethane are termed as conformer. To depict such conformation Newman projections are written. These are obtained by conversion of hashed-wedged line structure simply when molecule is viewed in a plane along the C–C as illustrated below:

For example energetics of rotation about the C–C bond for 2,3-dimethylbutane is similar to the potential energy diagram of butane except for the added methyl groups at second and third carbon.

Because of relatively more bulkiness in the system compared to butane, the energy differences between the anti and all other conformations will increase, with the greatest increase at 180 ° .

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Answer 4

Question

Chapter 2, Problem 53P

(a)

Interpretation Introduction

Interpretation: The energy associated with single H-H eclipsed interaction should be determined.

Concept introduction: Various interconvertible forms that result from rotation around the C–C bind in ethane are termed as conformer. To depict such conformation Newman projections are written. These are obtained by conversion of hashed-wedged line structure simply when molecule is viewed in a plane along the C–C as illustrated below:

For example, energetics of rotation about the C–C bond for 2,3-dimethylbutane is similar to the potential energy diagram of butane except for the added methyl groups at second and third carbon.

Because of relatively more bulkiness in the system compared to butane, the energy differences between the anti and all other conformations will increase, with the greatest increase at 180 ° .

(b)

Interpretation Introduction

Interpretation: The energy associated with single CH3-H eclipsed interaction should be determined.

Concept introduction: Various interconvertible forms that result from rotation around the C–C bind in ethane are termed as conformer. To depict such conformation Newman projections are written. These are obtained by conversion of hashed-wedged line structure simply when molecule is viewed in a plane along the C–C as illustrated below:

For example energetics of rotation about the C–C bond for 2,3-dimethylbutane is similar to the potential energy diagram of butane except for the added methyl groups at second and third carbon.

(c)

Interpretation Introduction

Interpretation: The energy associated with single methyl-methyl eclipsed interaction should be determined.

Concept introduction: Various interconvertible forms that result from rotation around the C–C bind in ethane are termed as conformer. To depict such conformation Newman projections are written. These are obtained by conversion of hashed-wedged line structure simply when molecule is viewed in a plane along the C–C as illustrated below:

For example energetics of rotation about the C–C bond for 2,3-dimethylbutane is similar to the potential energy diagram of butane except for the added methyl groups at second and third carbon.

(d)

Interpretation Introduction

Interpretation: The energy associated with single methyl-methyl gauche interaction should be determined.

Concept introduction: Various interconvertible forms that result from rotation around the C–C bind in ethane are termed as conformer. To depict such conformation Newman projections are written. These are obtained by conversion of hashed-wedged line structure simply when molecule is viewed in a plane along the C–C as illustrated below:

For example energetics of rotation about the C–C bond for 2,3-dimethylbutane is similar to the potential energy diagram of butane except for the added methyl groups at second and third carbon.

Because of relatively more bulkiness in the system compared to butane, the energy differences between the anti and all other conformations will increase, with the greatest increase at 180 ° .

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Answer 5

Chapter 2, Problem 53P

(a)

Interpretation Introduction

Interpretation: The energy associated with single H-H eclipsed interaction should be determined.

Concept introduction: Various interconvertible forms that result from rotation around the C–C bind in ethane are termed as conformer. To depict such conformation Newman projections are written. These are obtained by conversion of hashed-wedged line structure simply when molecule is viewed in a plane along the C–C as illustrated below:

For example, energetics of rotation about the C–C bond for 2,3-dimethylbutane is similar to the potential energy diagram of butane except for the added methyl groups at second and third carbon.

Because of relatively more bulkiness in the system compared to butane, the energy differences between the anti and all other conformations will increase, with the greatest increase at 180 ° .

(b)

Interpretation Introduction

Interpretation: The energy associated with single CH3-H eclipsed interaction should be determined.

Concept introduction: Various interconvertible forms that result from rotation around the C–C bind in ethane are termed as conformer. To depict such conformation Newman projections are written. These are obtained by conversion of hashed-wedged line structure simply when molecule is viewed in a plane along the C–C as illustrated below:

For example energetics of rotation about the C–C bond for 2,3-dimethylbutane is similar to the potential energy diagram of butane except for the added methyl groups at second and third carbon.

(c)

Interpretation Introduction

Interpretation: The energy associated with single methyl-methyl eclipsed interaction should be determined.

Concept introduction: Various interconvertible forms that result from rotation around the C–C bind in ethane are termed as conformer. To depict such conformation Newman projections are written. These are obtained by conversion of hashed-wedged line structure simply when molecule is viewed in a plane along the C–C as illustrated below:

For example energetics of rotation about the C–C bond for 2,3-dimethylbutane is similar to the potential energy diagram of butane except for the added methyl groups at second and third carbon.

(d)

Interpretation Introduction

Interpretation: The energy associated with single methyl-methyl gauche interaction should be determined.

Concept introduction: Various interconvertible forms that result from rotation around the C–C bind in ethane are termed as conformer. To depict such conformation Newman projections are written. These are obtained by conversion of hashed-wedged line structure simply when molecule is viewed in a plane along the C–C as illustrated below:

For example energetics of rotation about the C–C bond for 2,3-dimethylbutane is similar to the potential energy diagram of butane except for the added methyl groups at second and third carbon.

Because of relatively more bulkiness in the system compared to butane, the energy differences between the anti and all other conformations will increase, with the greatest increase at 180 ° .

Answer 6

Chapter 2, Problem 53P

(a)

Interpretation Introduction

Interpretation: The energy associated with single H-H eclipsed interaction should be determined.

Concept introduction: Various interconvertible forms that result from rotation around the C–C bind in ethane are termed as conformer. To depict such conformation Newman projections are written. These are obtained by conversion of hashed-wedged line structure simply when molecule is viewed in a plane along the C–C as illustrated below:

For example, energetics of rotation about the C–C bond for 2,3-dimethylbutane is similar to the potential energy diagram of butane except for the added methyl groups at second and third carbon.

Because of relatively more bulkiness in the system compared to butane, the energy differences between the anti and all other conformations will increase, with the greatest increase at 180 ° .

Answer 7

Chapter 2, Problem 53P

(a)

Interpretation Introduction

Interpretation: The energy associated with single H-H eclipsed interaction should be determined.

Concept introduction: Various interconvertible forms that result from rotation around the C–C bind in ethane are termed as conformer. To depict such conformation Newman projections are written. These are obtained by conversion of hashed-wedged line structure simply when molecule is viewed in a plane along the C–C as illustrated below:

For example, energetics of rotation about the C–C bond for 2,3-dimethylbutane is similar to the potential energy diagram of butane except for the added methyl groups at second and third carbon.

Because of relatively more bulkiness in the system compared to butane, the energy differences between the anti and all other conformations will increase, with the greatest increase at 180 ° .

Answer 8

(b)

Interpretation Introduction

Interpretation: The energy associated with single CH3-H eclipsed interaction should be determined.

Concept introduction: Various interconvertible forms that result from rotation around the C–C bind in ethane are termed as conformer. To depict such conformation Newman projections are written. These are obtained by conversion of hashed-wedged line structure simply when molecule is viewed in a plane along the C–C as illustrated below:

For example energetics of rotation about the C–C bond for 2,3-dimethylbutane is similar to the potential energy diagram of butane except for the added methyl groups at second and third carbon.

Answer 9

(b)

Interpretation Introduction

Interpretation: The energy associated with single CH3-H eclipsed interaction should be determined.

Concept introduction: Various interconvertible forms that result from rotation around the C–C bind in ethane are termed as conformer. To depict such conformation Newman projections are written. These are obtained by conversion of hashed-wedged line structure simply when molecule is viewed in a plane along the C–C as illustrated below:

For example energetics of rotation about the C–C bond for 2,3-dimethylbutane is similar to the potential energy diagram of butane except for the added methyl groups at second and third carbon.

Answer 10

(c)

Interpretation Introduction

Interpretation: The energy associated with single methyl-methyl eclipsed interaction should be determined.

Concept introduction: Various interconvertible forms that result from rotation around the C–C bind in ethane are termed as conformer. To depict such conformation Newman projections are written. These are obtained by conversion of hashed-wedged line structure simply when molecule is viewed in a plane along the C–C as illustrated below:

For example energetics of rotation about the C–C bond for 2,3-dimethylbutane is similar to the potential energy diagram of butane except for the added methyl groups at second and third carbon.

Answer 11

(c)

Interpretation Introduction

Interpretation: The energy associated with single methyl-methyl eclipsed interaction should be determined.

Concept introduction: Various interconvertible forms that result from rotation around the C–C bind in ethane are termed as conformer. To depict such conformation Newman projections are written. These are obtained by conversion of hashed-wedged line structure simply when molecule is viewed in a plane along the C–C as illustrated below:

For example energetics of rotation about the C–C bond for 2,3-dimethylbutane is similar to the potential energy diagram of butane except for the added methyl groups at second and third carbon.

Answer 12

(d)

Interpretation Introduction

Interpretation: The energy associated with single methyl-methyl gauche interaction should be determined.

Concept introduction: Various interconvertible forms that result from rotation around the C–C bind in ethane are termed as conformer. To depict such conformation Newman projections are written. These are obtained by conversion of hashed-wedged line structure simply when molecule is viewed in a plane along the C–C as illustrated below:

For example energetics of rotation about the C–C bond for 2,3-dimethylbutane is similar to the potential energy diagram of butane except for the added methyl groups at second and third carbon.

Because of relatively more bulkiness in the system compared to butane, the energy differences between the anti and all other conformations will increase, with the greatest increase at 180 ° .

Answer 13

(d)

Interpretation Introduction

Interpretation: The energy associated with single methyl-methyl gauche interaction should be determined.

Concept introduction: Various interconvertible forms that result from rotation around the C–C bind in ethane are termed as conformer. To depict such conformation Newman projections are written. These are obtained by conversion of hashed-wedged line structure simply when molecule is viewed in a plane along the C–C as illustrated below:

For example energetics of rotation about the C–C bond for 2,3-dimethylbutane is similar to the potential energy diagram of butane except for the added methyl groups at second and third carbon.

Because of relatively more bulkiness in the system compared to butane, the energy differences between the anti and all other conformations will increase, with the greatest increase at 180 ° .

Answer 14

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Ch. 2.1 - Prob. 2.1E Ch. 2.1 - Prob. 2.2E Ch. 2.1 - Prob. 2.3E Ch. 2.1 - Prob. 2.5TIY Ch. 2.1 - Prob. 2.6E Ch. 2.1 - Prob. 2.7E Ch. 2.2 - Prob. 2.8E Ch. 2.3 - Prob. 2.9E Ch. 2.3 - Prob. 2.10E Ch. 2.3 - Prob. 2.11E

Solution Summary: The author explains that the energy associated with single H-H eclipsed interaction should be determined.

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