(a) Interpretation: The structure of optically inactive compound A with the molecular formula C 6 H 10 O 4 that follows the given NMR data and can be resolved into enantiomers is to be stated. Concept introduction: Many nuclei and electrons have spin. Due to this, a spin magnetic moment arises. The energy of this magnetic moment depends on the orientation of the applied magnetic field. In NMR spectroscopy, every nucleus has a spin. There is an angular momentum related to the spin. The difference between its resonance frequency and that of the reference standard is known as the chemical shift of a nucleus. Tetramethylsilane (TMS) is taken as reference.

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Answer 1

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Chapter 20, Problem 20.57AP

Interpretation Introduction

(a)

Interpretation:

The structure of optically inactive compound A with the molecular formula C6H10O4 that follows the given NMR data and can be resolved into enantiomers is to be stated.

Concept introduction:

Many nuclei and electrons have spin. Due to this, a spin magnetic moment arises. The energy of this magnetic moment depends on the orientation of the applied magnetic field. In NMR spectroscopy, every nucleus has a spin. There is an angular momentum related to the spin. The difference between its resonance frequency and that of the reference standard is known as the chemical shift of a nucleus. Tetramethylsilane (TMS) is taken as reference.

Interpretation Introduction

(b)

Interpretation:

The structure of isomer of compound A that has a different melting point and almost identical NMR spectra as that of A is to be stated.

Concept introduction:

Many nuclei and electrons have spin. Due to this, a spin magnetic moment arises. The energy of this magnetic moment depends on the orientation of the applied magnetic field. In NMR spectroscopy, every nucleus has a spin. There is an angular momentum related to the spin. The difference between its resonance frequency and that of the reference standard is known as the chemical shift of a nucleus. Tetramethylsilane (TMS) is taken as reference.

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Part VII. Below are the 'HNMR, 13 C-NMR, COSY 2D- NMR, and HSQC 2D-NMR (similar with HETCOR but axes are reversed) spectra of an organic compound with molecular formula C6H1003 - Assign chemical shift values to the H and c atoms of the compound. Find the structure. Show complete solutions. Predicted 1H NMR Spectrum 4.7 4.6 4.5 4.4 4.3 4.2 4.1 4.0 3.9 3.8 3.7 3.6 3.5 3.4 3.3 3.2 3.1 3.0 2.9 2.8 2.7 2.6 2.5 2.4 2.3 2.2 2.1 2.0 1.9 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.1 f1 (ppm) Predicted 13C NMR Spectrum 100 f1 (ppm) 30 220 210 200 190 180 170 160 150 140 130 120 110 90 80 70 -26 60 50 40 46 30 20 115 10 1.0 0.9 0.8 0 -10

Answer 2

Question

Chapter 20, Problem 20.57AP

Interpretation Introduction

(a)

Interpretation:

The structure of optically inactive compound A with the molecular formula C6H10O4 that follows the given NMR data and can be resolved into enantiomers is to be stated.

Concept introduction:

Many nuclei and electrons have spin. Due to this, a spin magnetic moment arises. The energy of this magnetic moment depends on the orientation of the applied magnetic field. In NMR spectroscopy, every nucleus has a spin. There is an angular momentum related to the spin. The difference between its resonance frequency and that of the reference standard is known as the chemical shift of a nucleus. Tetramethylsilane (TMS) is taken as reference.

Interpretation Introduction

(b)

Interpretation:

The structure of isomer of compound A that has a different melting point and almost identical NMR spectra as that of A is to be stated.

Concept introduction:

Many nuclei and electrons have spin. Due to this, a spin magnetic moment arises. The energy of this magnetic moment depends on the orientation of the applied magnetic field. In NMR spectroscopy, every nucleus has a spin. There is an angular momentum related to the spin. The difference between its resonance frequency and that of the reference standard is known as the chemical shift of a nucleus. Tetramethylsilane (TMS) is taken as reference.

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Answer 3

Question

Chapter 20, Problem 20.57AP

Interpretation Introduction

(a)

Interpretation:

The structure of optically inactive compound A with the molecular formula C6H10O4 that follows the given NMR data and can be resolved into enantiomers is to be stated.

Concept introduction:

Many nuclei and electrons have spin. Due to this, a spin magnetic moment arises. The energy of this magnetic moment depends on the orientation of the applied magnetic field. In NMR spectroscopy, every nucleus has a spin. There is an angular momentum related to the spin. The difference between its resonance frequency and that of the reference standard is known as the chemical shift of a nucleus. Tetramethylsilane (TMS) is taken as reference.

Interpretation Introduction

(b)

Interpretation:

The structure of isomer of compound A that has a different melting point and almost identical NMR spectra as that of A is to be stated.

Concept introduction:

Many nuclei and electrons have spin. Due to this, a spin magnetic moment arises. The energy of this magnetic moment depends on the orientation of the applied magnetic field. In NMR spectroscopy, every nucleus has a spin. There is an angular momentum related to the spin. The difference between its resonance frequency and that of the reference standard is known as the chemical shift of a nucleus. Tetramethylsilane (TMS) is taken as reference.

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Answer 4

Question

Chapter 20, Problem 20.57AP

Interpretation Introduction

(a)

Interpretation:

The structure of optically inactive compound A with the molecular formula C6H10O4 that follows the given NMR data and can be resolved into enantiomers is to be stated.

Concept introduction:

Many nuclei and electrons have spin. Due to this, a spin magnetic moment arises. The energy of this magnetic moment depends on the orientation of the applied magnetic field. In NMR spectroscopy, every nucleus has a spin. There is an angular momentum related to the spin. The difference between its resonance frequency and that of the reference standard is known as the chemical shift of a nucleus. Tetramethylsilane (TMS) is taken as reference.

Interpretation Introduction

(b)

Interpretation:

The structure of isomer of compound A that has a different melting point and almost identical NMR spectra as that of A is to be stated.

Concept introduction:

Many nuclei and electrons have spin. Due to this, a spin magnetic moment arises. The energy of this magnetic moment depends on the orientation of the applied magnetic field. In NMR spectroscopy, every nucleus has a spin. There is an angular momentum related to the spin. The difference between its resonance frequency and that of the reference standard is known as the chemical shift of a nucleus. Tetramethylsilane (TMS) is taken as reference.

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Answer 5

Chapter 20, Problem 20.57AP

Interpretation Introduction

(a)

Interpretation:

The structure of optically inactive compound A with the molecular formula C6H10O4 that follows the given NMR data and can be resolved into enantiomers is to be stated.

Concept introduction:

Many nuclei and electrons have spin. Due to this, a spin magnetic moment arises. The energy of this magnetic moment depends on the orientation of the applied magnetic field. In NMR spectroscopy, every nucleus has a spin. There is an angular momentum related to the spin. The difference between its resonance frequency and that of the reference standard is known as the chemical shift of a nucleus. Tetramethylsilane (TMS) is taken as reference.

Interpretation Introduction

(b)

Interpretation:

The structure of isomer of compound A that has a different melting point and almost identical NMR spectra as that of A is to be stated.

Concept introduction:

Many nuclei and electrons have spin. Due to this, a spin magnetic moment arises. The energy of this magnetic moment depends on the orientation of the applied magnetic field. In NMR spectroscopy, every nucleus has a spin. There is an angular momentum related to the spin. The difference between its resonance frequency and that of the reference standard is known as the chemical shift of a nucleus. Tetramethylsilane (TMS) is taken as reference.

Answer 6

Chapter 20, Problem 20.57AP

Interpretation Introduction

(a)

Interpretation:

The structure of optically inactive compound A with the molecular formula C6H10O4 that follows the given NMR data and can be resolved into enantiomers is to be stated.

Concept introduction:

Many nuclei and electrons have spin. Due to this, a spin magnetic moment arises. The energy of this magnetic moment depends on the orientation of the applied magnetic field. In NMR spectroscopy, every nucleus has a spin. There is an angular momentum related to the spin. The difference between its resonance frequency and that of the reference standard is known as the chemical shift of a nucleus. Tetramethylsilane (TMS) is taken as reference.

Answer 7

Chapter 20, Problem 20.57AP

Interpretation Introduction

(a)

Interpretation:

The structure of optically inactive compound A with the molecular formula C6H10O4 that follows the given NMR data and can be resolved into enantiomers is to be stated.

Concept introduction:

Many nuclei and electrons have spin. Due to this, a spin magnetic moment arises. The energy of this magnetic moment depends on the orientation of the applied magnetic field. In NMR spectroscopy, every nucleus has a spin. There is an angular momentum related to the spin. The difference between its resonance frequency and that of the reference standard is known as the chemical shift of a nucleus. Tetramethylsilane (TMS) is taken as reference.

Answer 8

Interpretation Introduction

(b)

Interpretation:

The structure of isomer of compound A that has a different melting point and almost identical NMR spectra as that of A is to be stated.

Concept introduction:

Many nuclei and electrons have spin. Due to this, a spin magnetic moment arises. The energy of this magnetic moment depends on the orientation of the applied magnetic field. In NMR spectroscopy, every nucleus has a spin. There is an angular momentum related to the spin. The difference between its resonance frequency and that of the reference standard is known as the chemical shift of a nucleus. Tetramethylsilane (TMS) is taken as reference.

Answer 9

Interpretation Introduction

(b)

Interpretation:

The structure of isomer of compound A that has a different melting point and almost identical NMR spectra as that of A is to be stated.

Concept introduction:

Many nuclei and electrons have spin. Due to this, a spin magnetic moment arises. The energy of this magnetic moment depends on the orientation of the applied magnetic field. In NMR spectroscopy, every nucleus has a spin. There is an angular momentum related to the spin. The difference between its resonance frequency and that of the reference standard is known as the chemical shift of a nucleus. Tetramethylsilane (TMS) is taken as reference.

Answer 10

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Answer 13

Ch. 20 - Prob. 20.1P Ch. 20 - Prob. 20.2P Ch. 20 - Prob. 20.3P Ch. 20 - Prob. 20.4P Ch. 20 - Prob. 20.5P Ch. 20 - Prob. 20.6P Ch. 20 - Prob. 20.7P Ch. 20 - Prob. 20.8P Ch. 20 - Prob. 20.9P Ch. 20 - Prob. 20.10P

Solution Summary: The author explains the structure of the optically inactive compound A that follows the given NMR data and can be resolved into enantiomers.

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