Asked by Zachary Lindrup on Sep 27, 2024
Verified
How many electrons are present in the nonbonding π molecular orbital of the allyl anion?
A) 0
B) 1
C) 2
D) 3
E) 4
Nonbonding
Electrons in a molecule that are not involved in bonding but occupy nonbonding molecular orbitals, significantly influencing molecular shape and properties.
Π Molecular Orbital
A molecular orbital formed from the side-by-side overlap of atomic orbitals, having a nodal plane that passes through the nuclei.
Allyl Anion
A reactive ion derived from allyl compounds, notable for its use in organic synthesis as a nucleophile.
- Distinguish and articulate the significance of orbitals within organic reactions, with a focus on the roles of the Highest Occupied Molecular Orbital (HOMO) and Lowest Unoccupied Molecular Orbital (LUMO).
Verified Answer
AB
Arman Balianabout 14 hours ago
Final Answer :
C
Explanation :
The allyl anion has a total of 10 electrons. When we draw the molecular orbitals of the allyl anion, we see that there are three π molecular orbitals, one bonding and two nonbonding. The two nonbonding orbitals each hold two electrons. Therefore, the total number of electrons in the nonbonding π molecular orbitals is 2+2 = 4. However, since we are asked specifically about the nonbonding π orbital, we only consider one orbital, which contains two electrons. Thus, the correct answer is C, 2 electrons.
Learning Objectives
- Distinguish and articulate the significance of orbitals within organic reactions, with a focus on the roles of the Highest Occupied Molecular Orbital (HOMO) and Lowest Unoccupied Molecular Orbital (LUMO).