Concept explainers
Interpretation:
For the given MO diagram of
Concept introduction:
The MO arises from interacting p AOs of two atoms. MO energies differ as a result of constructive and destructive interference among contributing AOs. Each pair of overlapping AOs with the same phase lowers the MO energy and corresponds to a bonding interaction in an MO while each pair of overlapping AOs with the opposite phases raises the MO energy and corresponds to an antibonding interaction in an MO. The destructive interference gives rise to a nodal plane. The contributions of the AOs to produce a bonding, nonbonding, or antibonding MO depend on the net interaction. In the MO diagram, only
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ORGANIC CHEMISTRY SG/SM PA +SQUARECAP E
- Assign a designation of re, si, or N (not prochiral) to indicate which face we are looking down on for each of the sp²-hybridized carbons in the structure below. Jalaarrow_forwardThe most stable MO of 1,3,5-hexatriene and the most stable MO of benzene Which compound is more stable? Why?arrow_forwardHow many 1. the isobutyl cation? o bond orbitals are available for overlap with the vacant p orbital in 2. the n-butyl cation? 3. the sec-butyl cation?arrow_forward
- A student argues the the two nitrogen’s in the compound below are sp2 hybridized, but atom a is still more basic than atom b. Is the student correct? Explain.arrow_forwardThe compound shown below includes a conjugated r-system. a) Ose the table to draw qualitative pictures off all Hückel MO's and calculate the total electron energy of the molecule. H H. D O,N D *- Orbital: c1 c2 03 04 c5 1.802 0.2319 0.4179 0.5211 0.5211 0.4179 0.2319 42 1.247 0.4179 0.5211 0.2319 0.5211 0.4179 -0.2319 43 0.445 0.5211 0.2319 -0.4179 -0.4179 0.5211 0.2319 4 -0.445 0.5211 -0.2319 -0.5211 -0.4179 0.4179 0.2319 0.5211 45 -1.247 0.4179 0.2319 0.2319 0.2319 -0.5211 0.4179 -1.802 -0.4179 0.5211 -0.5211 0.4179 -0.2319arrow_forwardPlease label 3 frequencies and their bond assignments in this IR spectrum.arrow_forward
- 5) Draw an MO diagram for the square planar molecule Sn("Bu)a. Draw each SALC that you generate and each orbital within the final MO diagram. Label your orbitals as o", n, o' etc. and include the appropriate # of electrons. Compare your MO diagram to the Ta version done in class and provide an explanation for which geometry you think is would be more stable. Hint: you can use the d-orbitals as a template though they are not available for bonding.arrow_forward5) Use the template below to complete a full schematic picture of the molecular orbitals of the Pentadienyl ANION by only showing the interacting p atomic orbitals. Indicate the number of nodes in each, as well as the HOMO and LUMO. Energy 88888 electrons nodesarrow_forward| Determine whether the following molecules are aromatic (A), non-aromatic а) (NA), or anti-aromatic (AA). Please provide your answer on the line below each molecule. Additionally, include the total number of conjugated p-orbitals in each molecule (not pi- electrons!) conj. p-orbitals - conj. p-orbitals - conj. p-orbitals conj. p-orbitalsarrow_forward
- Organic Chemistry: A Guided InquiryChemistryISBN:9780618974122Author:Andrei StraumanisPublisher:Cengage LearningPhysical ChemistryChemistryISBN:9781133958437Author:Ball, David W. (david Warren), BAER, TomasPublisher:Wadsworth Cengage Learning,