The major isomer of glucose is to be determined. Concept introduction: The magnitude of coupling constant depends on the dihedral angle. The coupling constant is the greatest when the dihedral angle is 0 ° or 180 ° and smallest when the dihedral angle is 90 ° . The coupling constant of protons which are diequatorial is between 2-3Hz . The coupling constant of protons which are axial/equatorial is between 2-3Hz . The coupling constant of protons which are di axial is between 8-10Hz . The more intense peak of a particular fragment in the spectrum suggests the greater proportion of that fragment in the structure.

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Chapter 14, Problem 57DSP

Interpretation Introduction

Interpretation:

The major isomer of glucose is to be determined.

Concept introduction:

The magnitude of coupling constant depends on the dihedral angle.

The coupling constant is the greatest when the dihedral angle is 0° or 180° and smallest when the dihedral angle is 90°.

The coupling constant of protons which are diequatorial is between 2-3Hz.

The coupling constant of protons which are axial/equatorial is between 2-3Hz.

The coupling constant of protons which are di axial is between 8-10Hz.

The more intense peak of a particular fragment in the spectrum suggests the greater proportion of that fragment in the structure.

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