Please explain why 66.1 is wrong? Calculate strain energy for the conformer pict
ID: 886725 • Letter: P
Question
Please explain why 66.1 is wrong?
Calculate strain energy for the conformer pictured below, using strain energy increments from the table.
(Calculate your answer to the nearest 0.1 energy unit, and be sure to specify units, kJ/mol or kcal/mol. The answer is case sensitive.)
Calculate strain energy for the conformer pictured below, using strain energy increments from the table.
(Calculate your answer to the nearest 0.1 energy unit, and be sure to specify units, kJ/mol or kcal/mol. The answer is case sensitive.)
ball & stickwireframespace-fillingstick-+labels
Strain energy =
the ansewer is not 17.5
Strain Energy for Alkanes Interaction / Compound kJ/mol kcal/mol H : H eclipsing 4.0 1.0 H : CH3 eclipsing 5.8 1.4 CH3 : CH3 eclipsing 11.0 2.6 gauche butane 3.8 0.9 cyclopropane 115 27.5 cyclobutane 110 26.3 cyclopentane 26.0 6.2 cycloheptane 26.2 6.3 cyclooctane 40.5 9.7Explanation / Answer
In both the conformations, there are no eclipsing interactions.
The first conformation is fully staggered (anti) conformation. Its strain energy is approximately equal to that of gauche butane which is of the order of 3.8 kJ/mol or 0.9 kcal/mol.
The second conformation is staggered (anti) conformation. Its strain energy is approximately equal to that of gauche butane which is of the order of 3.8 kJ/mol or 0.9 kcal/mol.