Organic Chemistry
8th Edition
ISBN: 9781305580350
Author: William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Publisher: Cengage Learning
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Textbook Question
Chapter 1, Problem 1.76AP
The following two compounds are isomers; that is, they are different compounds with the same molecular formula. We discuss this type of isomerism in Chapter 5.
- (a) Why are these different molecules that do not interconvert?
- (b) Absorption of light by a double bond in a molecule excites one electron from a π molecular orbital to a π* molecular orbital. Explain how this absorption can lead to interconversion of the two isomers.
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A useful solvent that will dissolve salts as well as organic compounds is the compound acetonitrile, H3CCN. It is present in paint strippers.(a) Write the Lewis structure for acetonitrile, and indicate the direction of the dipole moment in the molecule.(b) Identify the hybrid orbitals used by the carbon atoms in the molecule to form σ bonds.(c) Describe the atomic orbitals that form the π bonds in the molecule. Note that it is not necessary to hybridize the nitrogen atom.
For each statement, indicate whether it is true or false. (a) The greater the orbital overlap in a bond, the weaker the bond. [b] The greater the orbital overlap in a bond, the shorter the bond. [c] To create a hybrid orbital, you could use the s orbital on one atom with a p orbital on another atom. [d] Nonbonding electron pairs cannot occupy a hybrid orbital.
(a) What is the difference between hybrid orbitals and molecular orbitals? (b) How many electrons can be placed into each MO of a molecule? (c) Can antibonding molecular orbitals have electrons in them?
Chapter 1 Solutions
Organic Chemistry
Ch. 1.1 - Prob. 1.1PCh. 1.2 - Prob. 1.2PCh. 1.2 - Judging from their relative positions in the...Ch. 1.2 - Classify each bond as nonpolar covalent or polar...Ch. 1.2 - Using the symbols and +, indicate the direction...Ch. 1.2 - Draw Lewis structures showing all valence...Ch. 1.2 - Draw Lewis structures for these ions and show...Ch. 1.3 - Draw Lewis structures and condensed structural...Ch. 1.3 - Prob. 1.9PCh. 1.3 - Prob. 1.10P
Ch. 1.3 - Prob. 1.11PCh. 1.3 - Prob. 1.12PCh. 1.4 - Predict all bond angles for these molecules. (a)...Ch. 1.5 - The geometry of carbon in diamond is tetrahedral,...Ch. 1.5 - Because of their spherical shape, C60 molecules...Ch. 1.5 - What best describes the CCC bond angles in C60? 1....Ch. 1.5 - Prob. 1.14PCh. 1.7 - Describe the bonding in these molecules in terms...Ch. 1.8 - Prob. 1.16PCh. 1.8 - Prob. 1.17PCh. 1.8 - Prob. 1.18PCh. 1.9 - Draw three contributing structures of the...Ch. 1.9 - What is the hybridization state of the circled...Ch. 1.9 - The molecule shown on the right in the example in...Ch. 1.9 - Prob. CQCh. 1.9 - The following structure is called imidazolium....Ch. 1 - Write the ground-state electron configuration for...Ch. 1 - Identify the atom that has each ground-state...Ch. 1 - Define valence shell and valence electron.Ch. 1 - How many electrons are in the valence shell of...Ch. 1 - Prob. 1.24PCh. 1 - Prob. 1.25PCh. 1 - Prob. 1.26PCh. 1 - Write Lewis structures for these compounds. Show...Ch. 1 - Write Lewis structures for these ions. Show all...Ch. 1 - Prob. 1.29PCh. 1 - Some of these structural formulas are incorrect...Ch. 1 - Following the rule that each atom of carbon,...Ch. 1 - Following are several Lewis structures showing all...Ch. 1 - Which statements are true about electronegativity?...Ch. 1 - Why does fluorine, the element in the upper right...Ch. 1 - Arrange the single covalent bonds within each set...Ch. 1 - Using the values of electronegativity given in...Ch. 1 - Prob. 1.37PCh. 1 - Use VSEPR to predict bond angles about each...Ch. 1 - Use VSEPR to predict bond angles about each atom...Ch. 1 - Use VSEPR to predict the geometry of these ions....Ch. 1 - Prob. 1.41PCh. 1 - Prob. 1.42PCh. 1 - What is the meaning of the term tertiary (3) when...Ch. 1 - What is the meaning of the term tertiary (3) when...Ch. 1 - Draw structural formulas for (a) The four primary...Ch. 1 - Draw structural formulas for the three tertiary...Ch. 1 - Prob. 1.47PCh. 1 - Identify the functional groups in each compound.Ch. 1 - Draw a three-dimensional representation for each...Ch. 1 - Tetrafluoroethylene, C2F4, is the starting...Ch. 1 - Which statements are true about resonance...Ch. 1 - Prob. 1.52PCh. 1 - Prob. 1.53PCh. 1 - Prob. 1.54PCh. 1 - Are the structures in each set valid contributing...Ch. 1 - State the orbital hybridization of each...Ch. 1 - Describe each highlighted bond in terms of the...Ch. 1 - Following is a structural formula of the...Ch. 1 - Draw a Lewis structure for methyl isocyanate,...Ch. 1 - What is the hybridization of the highlighted atoms...Ch. 1 - Using cartoon representations, draw a molecular...Ch. 1 - In what kind of orbitals do the lone-pair...Ch. 1 - Draw the delocalized molecular orbitals for the...Ch. 1 - Prob. 1.64APCh. 1 - Each compound contains both ions and covalent...Ch. 1 - Predict whether the carbon-metal bond in these...Ch. 1 - Prob. 1.67APCh. 1 - Phosphorus is immediately under nitrogen in the...Ch. 1 - Draw a Lewis structure for the azide ion, N3. (The...Ch. 1 - Cyanic acid, HOCN, and isocyanic acid, HNCO,...Ch. 1 - In Chapter 6, we study a group of organic cations...Ch. 1 - Many reactions involve a change in hybridization...Ch. 1 - Following is a structural formula of benzene,...Ch. 1 - Following are three contributing structures for...Ch. 1 - (a) Draw a Lewis structure for the ozone molecule,...Ch. 1 - The following two compounds are isomers; that is,...Ch. 1 - In future chapters, we will encounter...Ch. 1 - Prob. 1.78AP
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