The general values for steric and torsional strain are provided. Use these values to calculate the barrier to rotation for 2-methylpentane looking down the C2-C3 bond. Assume that methyl/ethyl steric interactions are the same as kJ/mol methyl/methyl. 1 2 3 H H. 4 C CH/CH3 gauche `CH3 3.8 kJ/mol steric strain HH 7 8 9 H/H eclipsed bond 4 kJ/mol torsional strain H. H. CH/H eclipsed bond 5.6 kJ/mol torsional strain H H +/- x 10 `CH3 H3C CH3 CH/CH3 eclipsed 11 kJ/mol torsional & steric strain H

The general values for steric and torsional strain are provided. Use these values to calculate the barrier to rotation for 2-methylpentane looking down the C2-C3 bond. Assume that methyl/ethyl steric interactions are the same as kJ/mol methyl/methyl. 1 2 3 H H. 4 C CH/CH3 gauche `CH3 3.8 kJ/mol steric strain HH 7 8 9 H/H eclipsed bond 4 kJ/mol torsional strain H. H. CH/H eclipsed bond 5.6 kJ/mol torsional strain H H +/- x 10 `CH3 H3C CH3 CH/CH3 eclipsed 11 kJ/mol torsional & steric strain H

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter31: Introduction To Analytical Separations

Section: Chapter Questions

Problem 31.29QAP

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