Organic Chemistry
7th Edition
ISBN: 9780321803221
Author: Paula Y. Bruice
Publisher: Prentice Hall
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Textbook Question
Chapter 3, Problem 78P
Calculate the energy difference between the two chair conformers of trans-1,2-dimethylcyclohexane.
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Chapter 3 Solutions
Organic Chemistry
Ch. 3.1 - Name each of the following:Ch. 3.1 - Draw the structure of a compound with molecular...Ch. 3.1 - Draw the structures and name the four...Ch. 3.1 - Prob. 6PCh. 3.1 - Draw the structure for each of the following: a....Ch. 3.1 - Name the following compounds: a. CH3OCH2CH3 b....Ch. 3.2 - Prob. 11PCh. 3.2 - Prob. 12PCh. 3.3 - Prob. 13PCh. 3.3 - Prob. 14P
Ch. 3.3 - Prob. 15PCh. 3.3 - Prob. 16PCh. 3.3 - What is each compounds systematic name?Ch. 3.4 - Give two names for each of the following alkyl...Ch. 3.4 - Prob. 19PCh. 3.5 - a. What is each ethers systematic name? 1....Ch. 3.6 - Draw the structures of a homologous series of...Ch. 3.6 - Give each of the following a systematic name and...Ch. 3.6 - Prob. 23PCh. 3.6 - Prob. 24PCh. 3.7 - Are the following compounds primary, secondary, or...Ch. 3.7 - Prob. 26PCh. 3.7 - Prob. 27PCh. 3.7 - For each of the following, give the systematic...Ch. 3.8 - Predict the approximate size of the following bond...Ch. 3.9 - Prob. 30PCh. 3.9 - Prob. 31PCh. 3.9 - Prob. 32PCh. 3.9 - Rank the following compounds from highest boiling...Ch. 3.9 - Rank the compounds in each set from highest...Ch. 3.9 - Prob. 35PCh. 3.9 - In which solvent would cyclohexane have the lowest...Ch. 3.10 - a. Draw all the staggered and eclipsed conformers...Ch. 3.10 - Prob. 38PCh. 3.10 - Using Newman projections, draw the most stable...Ch. 3.11 - The bond angles in a regular polygon with n sides...Ch. 3.11 - Prob. 41PCh. 3.11 - Prob. 42PCh. 3.12 - Draw 1,2,3,4,5,6-hexachlorocydohexane with a. all...Ch. 3.13 - The chair conformer of fluorocyclohexane is 0.25...Ch. 3.13 - Using the data in Table 3.9, calculate the...Ch. 3.14 - Prob. 46PCh. 3.14 - Which has a higher percentage of the...Ch. 3.14 - For each of the following disubstituted...Ch. 3.14 - a. Calculate the energy difference between the two...Ch. 3 - a. How many hydrogen does an alkene with 17...Ch. 3 - Draw the structure of octane and isooctaneCh. 3 - Draw a condensed structure and a skeletal...Ch. 3 - Prob. 53PCh. 3 - a. What is each compounds systematic name? b. Draw...Ch. 3 - Which of the following represents a cis isomer?Ch. 3 - a. How many primary carbons does each of the...Ch. 3 - Which of the following conformers of isobutyl...Ch. 3 - Draw a skeletal structure for an alkane that has...Ch. 3 - What is each compounds systematic name? a....Ch. 3 - Which bus a. the higher boiling point:...Ch. 3 - a. Draw Newman projections of the two conformers...Ch. 3 - Ansaid and Motrin belong to the group of drugs...Ch. 3 - Prob. 63PCh. 3 - A student was given the structural formulas of...Ch. 3 - Which of the following conformers has the highest...Ch. 3 - Prob. 66PCh. 3 - Prob. 67PCh. 3 - For rotation about the C-3C-4 bond of...Ch. 3 - Prob. 69PCh. 3 - What is each compounds systematic name? a. b. c....Ch. 3 - Prob. 71PCh. 3 - Why are lower molecular weight alcohols more...Ch. 3 - a. Draw a potential energy diagram for rotation...Ch. 3 - For each of the following compound, determine...Ch. 3 - How many ethers have molecular formula C5H12O?...Ch. 3 - Draw the most stable conformer of the following...Ch. 3 - What is each compounds systematic name?Ch. 3 - Calculate the energy difference between the two...Ch. 3 - The most stable from of glucose (blood sugar) is a...Ch. 3 - Prob. 80PCh. 3 - Explain the following: a. 1-Hexanol has a higher...Ch. 3 - One of the chair conformers of cis-...Ch. 3 - Bromine is a larger atom than chlorine, but the...Ch. 3 - Name the following compounds:Ch. 3 - Prob. 85PCh. 3 - Using the data obtained in Problem 85, calculate...
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- 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_forwardFrom studies of the dipole moment of 1,2-dichloroethane in the gas phase at room temperature (25°C), it is estimated that the ratio of molecules in the anti conformation to gauche conformation is 7.6 to 1. Calculate the difference in Gibbs free energy between these two conformations.arrow_forwardAre the C¬C bonds cyclopropane weaker than those in cyclohexane?arrow_forward
- sketch the various conformational isomers of 1,3-dimethylcyclohexane. Indicate the position (axial/equatorial) of each of the methyl groups in each structure.arrow_forwardDraw 2 isomenthol chair conformers. Include axial and equatorial groups. Explain which is more stable.arrow_forwardIt is easy to imagine a cyclohexane as a flat hexagon and a lot of the time we draw it that way. Looking at 1,3,5-triethylcyclohexane we cannot tell the stability of the molecule from looking at the flat 2D drawing. Explain why we need to look at the 3D configuration and what conformation (axial,equatorial) would each of the three ethyl groups be in for the most stable configuration.arrow_forward
- Write a conformational structure for 1,2,3-trimethylcyclohexane in which all the methyl groups are axial and then show its more stable conformation.arrow_forwardwhat is the chair conformer?arrow_forwardCyclohexane structures can have two chair conformations. Draw the alternate conformation of the structure shown below. Rotations of the structure are not allowed. H3C CF3arrow_forward
- Is 2-methyl-2-butanol chiralarrow_forwardPerspective drawings of Chair and Boat Conformers fo Cyclohexane (C6H12). Note it is impossible to place all the carbons in the same plane without straining the bonds. Take two opposite carbons and pull both of them up to make one conformation adn then pull one of them down to make the other conformation. Can you inercovert one conformer int othe other without breaking any bonds? Explain why these represent conformers and not isomers.arrow_forwardWhich conformation is the most STABLE STAGGERED conformation of 2,3-dimethylbutane along the C2-C3 bond?arrow_forward
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