The reason for the observation that water dissolved in CCl 4 solution gives triplet and it is dissolved in strongly acidic HF − SbF 5 solution gives quartet in the 17 O NMR is to be stated. Concept introduction: Many nuclei and electrons have spin, due to this 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. The chemical shift value depends upon its surrounding protons. Tetramethylsilane is taken as reference. Also, the spacing between splitted lines of NMR spectra is known as coupling constant. The angle between the two intersecting planes is known as the dihedral angle.

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Chapter 13, Problem 13.61AP

Interpretation Introduction

Interpretation:

The reason for the observation that water dissolved in CCl4 solution gives triplet and it is dissolved in strongly acidic HF−SbF5 solution gives quartet in the 17O NMR is to be stated.

Concept introduction:

Many nuclei and electrons have spin, due to this 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. The chemical shift value depends upon its surrounding protons. Tetramethylsilane is taken as reference. Also, the spacing between splitted lines of NMR spectra is known as coupling constant. The angle between the two intersecting planes is known as the dihedral angle.

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