![Organic Chemistry](https://www.bartleby.com/isbn_cover_images/9781305080485/9781305080485_largeCoverImage.gif)
Organic Chemistry
9th Edition
ISBN: 9781305080485
Author: John E. McMurry
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 3.SE, Problem 52AP
Increased substitution around a bond leads to increased strain. Take the four substituted butanes listed below, for example. For each compound, sight along the C2-C3 bond and draw Newman projections of the most stable and least stable conformations. Use the data in Table 3-5 to assign strain-energy values to each conformation. Which of the eight conformations is most strained? Which is least strained?
(a) 2-Methylbutane
(b) 2,2-Dimethylbutane
(c) 2,3-Dimethylbutane
(d) 2,2,3-Trimethylbutane
Expert Solution & Answer
![Check Mark](/static/check-mark.png)
Trending nowThis is a popular solution!
![Blurred answer](/static/blurred-answer.jpg)
Students have asked these similar questions
Sight along the C2-C1 bond of 2-methylpropane (isobutane).(a) Draw a Newman projection of the most stable conformation.(b) Draw a Newman projection of the least stable conformation.(c) Make a graph of energy versus angle of rotation around the C2-C1 bond.(d) Assign relative values to the maxima and minima in your graph, given that an H↔H eclipsing interaction costs 4.0 kJ/mol and an H↔CH3 eclipsing interaction costs 6.0 kJ/mol.
Rank the conformations of n-butane with reference to its potential energy from the most stable to the least stable.
Rank from the most stable to the least stable. To rank items as equivalent, overlap them.
4- Use Newman projections to represent the most stable conformer for the
following molecules (remember to assign Gauche interactions).
Br
HN
Chapter 3 Solutions
Organic Chemistry
Ch. 3.1 - Prob. 1PCh. 3.1 - Prob. 2PCh. 3.1 - Identify the functional groups in the following...Ch. 3.2 - Draw structures of the five isomers of C6H14.Ch. 3.2 - Propose structures that meet the following...Ch. 3.2 - Prob. 6PCh. 3.3 - Draw the eight 5-carbon alkyl groups (pentyl...Ch. 3.3 - Identify the carbon atoms in the following...Ch. 3.3 - Prob. 9PCh. 3.3 - Prob. 10P
Ch. 3.4 - Give IUPAC names for the following compounds:Ch. 3.4 - Prob. 12PCh. 3.4 - Name the eight 5-carbon alkyl groups you drew in...Ch. 3.4 - Give the IUPAC name for the following hydrocarbon,...Ch. 3.7 - Make a graph of potential energy versus angle of...Ch. 3.7 - Sight along the C2-C1 bond of 2-methylpropane...Ch. 3.7 - Sight along the C2-C3 bond of 2,3-dimethylbutane,...Ch. 3.7 - Draw a Newman projection along the C2-C3 bond of...Ch. 3.SE - Prob. 19VCCh. 3.SE - Prob. 20VCCh. 3.SE - Draw a Newman projection along the C2-C3 bond of...Ch. 3.SE - Prob. 22APCh. 3.SE - Prob. 23APCh. 3.SE - Propose structures for the following: (a) A...Ch. 3.SE - Prob. 25APCh. 3.SE - Draw the structures of the following molecules:...Ch. 3.SE - Draw structures that meet the following...Ch. 3.SE - Prob. 28APCh. 3.SE - In each of the following sets, which structures...Ch. 3.SE - There are seven constitutional isomers with the...Ch. 3.SE - Prob. 31APCh. 3.SE - Draw compounds that contain the following: (a) A...Ch. 3.SE - Prob. 33APCh. 3.SE - Draw and name all monochloro derivatives of...Ch. 3.SE - Draw structures for the following: (a)...Ch. 3.SE - Prob. 36APCh. 3.SE - Draw a compound that: (a) Has nine primary...Ch. 3.SE - Give IUPAC names for the following compounds:Ch. 3.SE - Name the five isomers of C6H14.Ch. 3.SE - Explain why each of the following names is...Ch. 3.SE - Prob. 41APCh. 3.SE - Consider 2-methylbutane (isopentane). Sighting...Ch. 3.SE - What are the relative energies of the three...Ch. 3.SE - Construct a qualitative potential-energy diagram...Ch. 3.SE - Prob. 45APCh. 3.SE - Draw the most stable conformation of pentane,...Ch. 3.SE - Draw the most stable conformation of...Ch. 3.SE - Prob. 48APCh. 3.SE - Prob. 49APCh. 3.SE - Formaldehyde, H2C=O, is known to all biologists...Ch. 3.SE - Prob. 51APCh. 3.SE - Increased substitution around a bond leads to...Ch. 3.SE - Prob. 53APCh. 3.SE - In the next chapter we'll look at...Ch. 3.SE - We’ll see in the next chapter that there are two...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Similar questions
- Construct the chair structures with the molecular models for trans-1-ethyl-3-methylcyclohexane. Find the energy of each conformer, the equilibrium constant Keq, and the percentage of each conformer at 25oC. Indicate which conformer is more stable.arrow_forwardAcetylcholine is a neurotransmitter in the central nervous system in humans. Sighting along the C-C bond, draw Newman projection formulas for all the eclipsed and staggered conformers of acetylcholine. Which among the conformers is the least stable? The most stable? Plot a conformational analysis for these conformers.arrow_forwardDraw an expanded structural formula of pent-1-en-3-yne/ CH3-CC-CH=CH2 and then label each carbon. Indicate the longest and shortest C-H bond and predict the C—C single bond that has the highest BDE(bond dissociation energy).arrow_forward
- For 1,2-dichloroethane: (a) Draw Newman projections for all eclipsed conformations formed by rotation from 0 to 360° about the carbon-carbon single bond. (b) Which eclipsed conformation(s) has the lowest energy? Which has the highest energy? (c) Which, if any, of these eclipsed conformations are related by reflection?arrow_forwardFor the attached question (a), do the positions of the H and CH3 of the back carbon matter? Can they be switched since the front carbon is 'symmetrical' with two hydrogens?arrow_forwardPerform a conformational analysis of 1,2-dibromo-1-fluoroethane, BrFCH-CH2Br. Pay attention to the relative energies of the various conformations, but do not concern yourself with the actual energy values.arrow_forward
- 1. Use a Newman projection about the indicated bond to draw the most stable conformer for each compound. (a) 3-methylpentane about the C2 ¬ C3 bond (b) 3,3-dimethylhexane about the C3 ¬ C4 bond2. refer to the questions below:arrow_forwardRank the conformations of n-butane with reference to its potential energy from the most stable to the least stable. Rank from the most stable to the least stable.To rank items as equivalent, overlap them.arrow_forwardPerform a conformational analysis of 2-methylbutane, (CH3)2CHCH2CH3, looking down the C2-C3 bond. Pay attention to the relative energies of the various conformations, but do not concern yourself with the actual energy values.arrow_forward
- 1. Although there is only one alkene with the formula C2H4 (ethene) and only one with the formula C3H6 (propene), there are several alkenes with the formula C4H8. Draw all of the possible bond line structures for alkenes with the formula C4H3 including all possible structural and stereoisomers.arrow_forwardConsider the isomers of tert-butylcyclohexanol in conformational structures. Two are cis-2-tert-butylcyclohexanol and two are cis-3-tert-butylcyclohexanol. Indicate which is the more stable conformation for each pair, and indicate which of all four conformations is the most stable. FIX a box OH HO OH A Select the more stable conformation of cis-2-tert-butylcyclohexanol. B OD C B C D ☐A C OH Select the more stable conformation of cis-3-tert-butylcyclohexanol.arrow_forwardWrite a conformational structure for 1,2,3-trimethylcyclohexane in which all the methyl groups are axial and then show its more stable conformation.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage LearningChemistry & Chemical ReactivityChemistryISBN:9781337399074Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage Learning
- Chemistry & Chemical ReactivityChemistryISBN:9781133949640Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage Learning
![Text book image](https://www.bartleby.com/isbn_cover_images/9781305080485/9781305080485_smallCoverImage.gif)
![Text book image](https://www.bartleby.com/isbn_cover_images/9781305580350/9781305580350_smallCoverImage.gif)
Organic Chemistry
Chemistry
ISBN:9781305580350
Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Publisher:Cengage Learning
![Text book image](https://www.bartleby.com/isbn_cover_images/9781337399074/9781337399074_smallCoverImage.gif)
Chemistry & Chemical Reactivity
Chemistry
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:Cengage Learning
![Text book image](https://www.bartleby.com/isbn_cover_images/9781133949640/9781133949640_smallCoverImage.gif)
Chemistry & Chemical Reactivity
Chemistry
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:Cengage Learning
Chapter 4 Alkanes and Cycloalkanes Lesson 2; Author: Linda Hanson;https://www.youtube.com/watch?v=AL_CM_Btef4;License: Standard YouTube License, CC-BY
Chapter 4 Alkanes and Cycloalkanes Lesson 1; Author: Linda Hanson;https://www.youtube.com/watch?v=PPIa6EHJMJw;License: Standard Youtube License