Question

Choose the correct explanations for the aromaticity of the compound.

Select all that apply.

1. The lone pairs on the nitrogen atoms do not contribute to aromaticity.
2. The lone pairs on the nitrogen atoms do contribute to aromaticity.
3. The lone pairs on the nitrogen atoms occupy sp2 hybridized orbitals.
4. The lone pairs on the nitrogen atoms occupy sp3 hybridized orbitals.
5. One of the lone pairs on the oxygen atom (inside the ring) occupies a p orbital, giving a continuous system of overlapping p orbitals containing six electrons.

Answer 1

The lone pairs on the nitrogen atoms do not contribute to aromaticity. One of the lone pairs on the oxygen atom (inside the ring) occupies a p orbital, giving a continuous system of overlapping p orbitals containing six electrons. The lone pairs on the nitrogen atoms occupy sp³ hybridized orbitals.

Step-by-step explanation:

The correct explanations for the aromaticity of the compound are:

1. The lone pairs on the nitrogen atoms do not contribute to aromaticity.
2. One of the lone pairs on the oxygen atom (inside the ring) occupies a p orbital, giving a continuous system of overlapping p orbitals containing six electrons.

The lone pairs on the nitrogen atoms occupy sp³ hybridized orbitals (Answer 4) which allows the nitrogen to accommodate one B-F bond and three lone pairs (Answer a). The lone pairs on the nitrogen atoms do not contribute to aromaticity (Answer 1). The correct hybridization for the oxygen atom in the compound is sp² (Answer b).

Answer 2

Step-by-step explanation:

2. The lone pairs on the nitrogen atoms do contribute to aromaticity.

3. The lone pairs on the nitrogen atoms occupy sp2 hybridized orbitals.

5. One of the two lone pairs on the oxygen atom (inside the ring) occupies a p orbital, giving a continuous system of overlapping p orbitals containing six electrons.