Problems: 1. Use MO Theory to determine which (if either) of the cyclopentadiene cation or cyclopentadiene anion is aromatic. a. Determine the number of potential pi electrons in each molecule. b. Determine the constructive vs destructive interactions and the energies for the MOs of a 5 carbon pi system. The nodes are provided below to get you started. c. Fill in the pi electrons for the cation and anion into the energy diagram. Cation (continued on the next page) Anion d. Relate the MO diagrams to their aromaticity (or lack thereof). What orbital hybridization would the empty orbital or lone pair adopt?

Problems: 1. Use MO Theory to determine which (if either) of the cyclopentadiene cation or cyclopentadiene anion is aromatic. a. Determine the number of potential pi electrons in each molecule. b. Determine the constructive vs destructive interactions and the energies for the MOs of a 5 carbon pi system. The nodes are provided below to get you started. c. Fill in the pi electrons for the cation and anion into the energy diagram. Cation (continued on the next page) Anion d. Relate the MO diagrams to their aromaticity (or lack thereof). What orbital hybridization would the empty orbital or lone pair adopt?

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

Chapter18: Aromaticity

Section: Chapter Questions

Problem 15E

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