Tasks point of view CI Figure 2: Confomational analysis 1. Draw all Newman projections of staggered conformations of the molecule in Figure 2 from the indicated point of view. 2. Select the lowest energy conformation and briefly explain your choice. 3. Boat conformation of cyclohexane does not experience ring strain. Nevertheless it is significantly less stable than the chair conformation. There are two types of strain that cause it. One is flagpole interactions. What is the second reason for higher energy of the boat conformation of cyclohexane? Drawing must be used as part of your answer.

Tasks point of view CI Figure 2: Confomational analysis 1. Draw all Newman projections of staggered conformations of the molecule in Figure 2 from the indicated point of view. 2. Select the lowest energy conformation and briefly explain your choice. 3. Boat conformation of cyclohexane does not experience ring strain. Nevertheless it is significantly less stable than the chair conformation. There are two types of strain that cause it. One is flagpole interactions. What is the second reason for higher energy of the boat conformation of cyclohexane? Drawing must be used as part of your answer.

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

Chapter6: Alkanes & Alkenes

Section: Chapter Questions

Problem 10CTQ: Consider the Newman projection below. a. Draw a full Lewis structure of this molecule with...

See similar textbooks

Similar questions

Using your model, construct an energy diagram to show the variation in the free energy of the molecule as the FRONT ATOM is rotated CLOCKWISE from 0º to 360º in 60º increments. In your energy diagram, you should clearly show the relative energies of each conformer.
For the following two conformations of 2,3-dimethylbutane, determine (choose 1 option below) the total energy cost associated with all torsional strain and steric strain. 1. a) (6 kJ/mol x 2) + (11 kJ/mol x3) = 45 kJ/mol b) 3.8 kJ/mol x 4 = 15.2 kJ/mol c) 3.8 kJ/mol x 3 = 11.4 kJ/mol d) 11kJ/mol x 4 = 44 kJ/mol 2. a) 6 kJ/mol + 11 KJ/mol= 17 kJ/mol b) 3.8 kJ/mol x 3 = 11.4 kJ/mol c) (6kJ/mol x 2 ) 3.8 kJ/mol = 15.8 kJ/mol d) (6kJ/mol x 2 ) + 11kJ/mol = 23 kJ/mol
How many equivalent hydrogens are in CH2BrCl? (i.e., do they have identical environments with respect to the other atoms adjacent to themselves). A) 0 B) 3 C) 1 D) 2
Consider the Newman projection below. a. Draw a full Lewis structure of this molecule with R1=Me,R2=Et , and R3=iPr . b. Given the sizes of these R groups (R3R2R1) , does the Newman projection above show thelowest potential energy conformation of this bond? If not, draw a Newman projectionshowing the lowest P.E. conformation (sighting down this same bond). c. To draw a Newman projection in the lowest P.E. conformation, the following rule of thumbusually applies: Place the largest group on the front carbon anti to the largest group on theback carbon. Is your answer to the previous question consistent with this rule of thumb?
The potential energy of a CH3 group in ethane as it is rotated around the C-C bond can be written V= 1/2V0(1 +cos φ), where φ is the azimuthal angle as shown and V0 = 11.6 kJ mol-1. (a) What is the change in potential energy between the trans and fully eclipsed conformations? (b) Show that for smal lvariations in angle, the torsional (twisting) motion around the C-C bond can be expected to be that of a harmonic oscillator. (d) Estimate the vibrational frequency of this torsional oscil lation.
Use the experimental evidence to make areduction potential table for the 4 couples involved.(This one is more challenging because you have to figure out the couples yourself).V3+ + PuO2+  VO2+ + Pu4+Mo3+ + V3+  no reactionGa + Mo3+  Mo + Ga3+
3 Select the correct representations (using Newman projections) for the staggered rotational isomers ("rotamers") about C2-C3 in 2-methylbutane. H H3C H3C H H3C I I- H H H CH3 H CH3 CH3
Draw the conformations of pentane using a Newman projection of the view along the C2-C3 bond. Identify the least stable conformation.
The Newman projection in Figure 6-1 that is the lowest energy maximum is A B C D
(a) Determine the absolute configurations of the reactant and the product... (b) What does "retention of configuration" mean?
Draw the structures of 1,3-pentadiene and 1,4-pentadiene and label the carbons. Predict the trendin C-C single bond lengths in the two compounds.
2-chloro-3methylbutane (show all confirmations) 1) looking down the C1-C2 bond 2) 1 staggered confimation looking down the C2-C3 bond 3) Label all and rank all from least to most stable.