(a) Interpretation: In the R , S system the α − carbon configuration of L- cysteine is to be stated. Concept introduction: The absolute configuration of a molecule is a spatial arrangement of atoms. It is represented by two terms R and S where R refers to rectus and S refers to sinister. Whether the molecule is assigned either R or S configuration is based Cahn-Ingold-Prelog rule. It is based on the priority order of the substituents which is based on the atomic number. If the priority order is clockwise then it is assigned R configuration otherwise S configuration. Also, the lowest priority group is kept away from the observer.

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Answer 1

Question

Chapter 27, Problem 27.26P

Interpretation Introduction

(a)

Interpretation:

In the R,S system the α− carbon configuration of L- cysteine is to be stated.

Concept introduction:

The absolute configuration of a molecule is a spatial arrangement of atoms. It is represented by two terms R and S where R refers to rectus and S refers to sinister. Whether the molecule is assigned either R or S configuration is based Cahn-Ingold-Prelog rule. It is based on the priority order of the substituents which is based on the atomic number. If the priority order is clockwise then it is assigned R configuration otherwise S configuration. Also, the lowest priority group is kept away from the observer.

Interpretation Introduction

(b)

Interpretation:

The reason as to why L− cysteine and L− serine have a different configuration in the R,S system is to be stated.

Concept introduction:

The absolute configuration of a molecule is a spatial arrangement of atoms. It is represented by two terms R and S where R refers to rectus and S refers to sinister. Whether the molecule is assigned either R or S configuration is based Cahn-Ingold-Prelog rule. It is based on the priority order of the substituents which is based on the atomic number. If the priority order is clockwise then it is assigned R configuration otherwise S configuration. Also, the lowest priority group is kept away from the observer.

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Answer 2

Question

Chapter 27, Problem 27.26P

Interpretation Introduction

(a)

Interpretation:

In the R,S system the α− carbon configuration of L- cysteine is to be stated.

Concept introduction:

The absolute configuration of a molecule is a spatial arrangement of atoms. It is represented by two terms R and S where R refers to rectus and S refers to sinister. Whether the molecule is assigned either R or S configuration is based Cahn-Ingold-Prelog rule. It is based on the priority order of the substituents which is based on the atomic number. If the priority order is clockwise then it is assigned R configuration otherwise S configuration. Also, the lowest priority group is kept away from the observer.

Interpretation Introduction

(b)

Interpretation:

The reason as to why L− cysteine and L− serine have a different configuration in the R,S system is to be stated.

Concept introduction:

The absolute configuration of a molecule is a spatial arrangement of atoms. It is represented by two terms R and S where R refers to rectus and S refers to sinister. Whether the molecule is assigned either R or S configuration is based Cahn-Ingold-Prelog rule. It is based on the priority order of the substituents which is based on the atomic number. If the priority order is clockwise then it is assigned R configuration otherwise S configuration. Also, the lowest priority group is kept away from the observer.

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Answer 3

Question

Chapter 27, Problem 27.26P

Interpretation Introduction

(a)

Interpretation:

In the R,S system the α− carbon configuration of L- cysteine is to be stated.

Concept introduction:

The absolute configuration of a molecule is a spatial arrangement of atoms. It is represented by two terms R and S where R refers to rectus and S refers to sinister. Whether the molecule is assigned either R or S configuration is based Cahn-Ingold-Prelog rule. It is based on the priority order of the substituents which is based on the atomic number. If the priority order is clockwise then it is assigned R configuration otherwise S configuration. Also, the lowest priority group is kept away from the observer.

Interpretation Introduction

(b)

Interpretation:

The reason as to why L− cysteine and L− serine have a different configuration in the R,S system is to be stated.

Concept introduction:

The absolute configuration of a molecule is a spatial arrangement of atoms. It is represented by two terms R and S where R refers to rectus and S refers to sinister. Whether the molecule is assigned either R or S configuration is based Cahn-Ingold-Prelog rule. It is based on the priority order of the substituents which is based on the atomic number. If the priority order is clockwise then it is assigned R configuration otherwise S configuration. Also, the lowest priority group is kept away from the observer.

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Answer 4

Question

Chapter 27, Problem 27.26P

Interpretation Introduction

(a)

Interpretation:

In the R,S system the α− carbon configuration of L- cysteine is to be stated.

Concept introduction:

The absolute configuration of a molecule is a spatial arrangement of atoms. It is represented by two terms R and S where R refers to rectus and S refers to sinister. Whether the molecule is assigned either R or S configuration is based Cahn-Ingold-Prelog rule. It is based on the priority order of the substituents which is based on the atomic number. If the priority order is clockwise then it is assigned R configuration otherwise S configuration. Also, the lowest priority group is kept away from the observer.

Interpretation Introduction

(b)

Interpretation:

The reason as to why L− cysteine and L− serine have a different configuration in the R,S system is to be stated.

Concept introduction:

The absolute configuration of a molecule is a spatial arrangement of atoms. It is represented by two terms R and S where R refers to rectus and S refers to sinister. Whether the molecule is assigned either R or S configuration is based Cahn-Ingold-Prelog rule. It is based on the priority order of the substituents which is based on the atomic number. If the priority order is clockwise then it is assigned R configuration otherwise S configuration. Also, the lowest priority group is kept away from the observer.

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Answer 5

Chapter 27, Problem 27.26P

Interpretation Introduction

(a)

Interpretation:

In the R,S system the α− carbon configuration of L- cysteine is to be stated.

Concept introduction:

The absolute configuration of a molecule is a spatial arrangement of atoms. It is represented by two terms R and S where R refers to rectus and S refers to sinister. Whether the molecule is assigned either R or S configuration is based Cahn-Ingold-Prelog rule. It is based on the priority order of the substituents which is based on the atomic number. If the priority order is clockwise then it is assigned R configuration otherwise S configuration. Also, the lowest priority group is kept away from the observer.

Interpretation Introduction

(b)

Interpretation:

The reason as to why L− cysteine and L− serine have a different configuration in the R,S system is to be stated.

Concept introduction:

The absolute configuration of a molecule is a spatial arrangement of atoms. It is represented by two terms R and S where R refers to rectus and S refers to sinister. Whether the molecule is assigned either R or S configuration is based Cahn-Ingold-Prelog rule. It is based on the priority order of the substituents which is based on the atomic number. If the priority order is clockwise then it is assigned R configuration otherwise S configuration. Also, the lowest priority group is kept away from the observer.

Answer 6

Chapter 27, Problem 27.26P

Interpretation Introduction

(a)

Interpretation:

In the R,S system the α− carbon configuration of L- cysteine is to be stated.

Concept introduction:

The absolute configuration of a molecule is a spatial arrangement of atoms. It is represented by two terms R and S where R refers to rectus and S refers to sinister. Whether the molecule is assigned either R or S configuration is based Cahn-Ingold-Prelog rule. It is based on the priority order of the substituents which is based on the atomic number. If the priority order is clockwise then it is assigned R configuration otherwise S configuration. Also, the lowest priority group is kept away from the observer.

Answer 7

Chapter 27, Problem 27.26P

Interpretation Introduction

(a)

Interpretation:

In the R,S system the α− carbon configuration of L- cysteine is to be stated.

Concept introduction:

The absolute configuration of a molecule is a spatial arrangement of atoms. It is represented by two terms R and S where R refers to rectus and S refers to sinister. Whether the molecule is assigned either R or S configuration is based Cahn-Ingold-Prelog rule. It is based on the priority order of the substituents which is based on the atomic number. If the priority order is clockwise then it is assigned R configuration otherwise S configuration. Also, the lowest priority group is kept away from the observer.

Answer 8

Interpretation Introduction

(b)

Interpretation:

The reason as to why L− cysteine and L− serine have a different configuration in the R,S system is to be stated.

Concept introduction:

The absolute configuration of a molecule is a spatial arrangement of atoms. It is represented by two terms R and S where R refers to rectus and S refers to sinister. Whether the molecule is assigned either R or S configuration is based Cahn-Ingold-Prelog rule. It is based on the priority order of the substituents which is based on the atomic number. If the priority order is clockwise then it is assigned R configuration otherwise S configuration. Also, the lowest priority group is kept away from the observer.

Answer 9

Interpretation Introduction

(b)

Interpretation:

The reason as to why L− cysteine and L− serine have a different configuration in the R,S system is to be stated.

Concept introduction:

The absolute configuration of a molecule is a spatial arrangement of atoms. It is represented by two terms R and S where R refers to rectus and S refers to sinister. Whether the molecule is assigned either R or S configuration is based Cahn-Ingold-Prelog rule. It is based on the priority order of the substituents which is based on the atomic number. If the priority order is clockwise then it is assigned R configuration otherwise S configuration. Also, the lowest priority group is kept away from the observer.

Answer 10

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Answer 13

Ch. 27 - Prob. 27.1P Ch. 27 - Prob. 27.2P Ch. 27 - Prob. 27.3P Ch. 27 - Prob. 27.4P Ch. 27 - Prob. 27.5P Ch. 27 - Prob. 27.6P Ch. 27 - Prob. 27.8P Ch. 27 - Prob. 27.9P Ch. 27 - Prob. 27.10P Ch. 27 - Prob. 27.11P

Solution Summary: The author explains that the absolute configuration of a molecule is represented by two terms: R and S.

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