The energy cost associated with the eclipsing interaction between a bromine atom and a hydrogen atom in bromoethane is needed to be calculated on basis of given information the barrier to rotation of bromoethane is 15 kJ/mol. Concept introduction: Conformations are arising due to the free rotation of C − C bond. These rotations are measured by dihedral angle ; it is the angle between two atoms attached to two different carbons of C − C rotation in Newman projection. The most and least energy occupied conformers are eclipsed and staggered , which are having a dihedral angle of ‘0’ and ‘60’ degree respectively. The torsional strain and steric interaction between atoms of eclipsed conformations makes them more energized as compared to staggered conformations. The C − C bond rotation from staggered to eclipsed is called barrier to rotation. It requires some cost of energy . It depends upon eclipsed interaction energies of each atom attached to C − C carbon atom. The energy cost for H/H eclipsed interaction is 4 kJ/mol. To find: the energy cost associated with the eclipsing interaction between a bromine atom and a hydrogen atom in bromoethane.

Question

Want to see the full answer?

Answer 1

Question

Chapter 4, Problem 49PP

Interpretation Introduction

Interpretation:

The energy cost associated with the eclipsing interaction between a bromine atom and a hydrogen atom in bromoethane is needed to be calculated on basis of given information the barrier to rotation of bromoethane is 15 kJ/mol.

Concept introduction:

Conformations are arising due to the free rotation of C−C bond. These rotations are measured by dihedral angle; it is the angle between two atoms attached to two different carbons of C−C rotation in Newman projection.

The most and least energy occupied conformers are eclipsed and staggered, which are having a dihedral angle of ‘0’ and ‘60’ degree respectively.

The torsional strain and steric interaction between atoms of eclipsed conformations makes them more energized as compared to staggered conformations.

The C−C bond rotation from staggered to eclipsed is called barrier to rotation. It requires some cost of energy. It depends upon eclipsed interaction energies of each atom attached to C−C carbon atom.

The energy cost for H/H eclipsed interaction is 4 kJ/mol.

To find: the energy cost associated with the eclipsing interaction between a bromine atom and a hydrogen atom in bromoethane.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

7. The three sets of replicate results below were accumulated for the analysis of the same sample. Pool these data to obtain the most efficient estimate of the mean analyte content and the standard deviation. Lead content/ppm: Set 1 Set 2 Set 3 1. 9.76 9.87 9.85 2. 9.42 9.64 9.91 3. 9.53 9.71 9.42 9.81 9.49

Draw the Zaitsev product famed when 2,3-dimethylpentan-3-of undergoes an El dehydration. CH₂ E1 OH H₁PO₁ Select Draw Templates More QQQ +H₂O

Complete the clean-pushing mechanism for the given ether synthesia from propanol in concentrated sulfurica140°C by adding any mining aloms, bands, charges, nonbonding electron pairs, and curved arrows. Draw hydrogen bonded to cayan, when applicable. ore 11,0 HPC Step 1: Draw curved arrows Step 2: Complete the intend carved Q2Q 56 QQQ Step 3: Complete the intermediate and add curved Step 4: Modify the structures to draw the QQQ QQQ