The energy diagram for the MOs of a planar cyclooctatetraenyl system using the polygon rule is to be drawn. Concept introduction: The conditions that a molecule must follow to be an aromatic are shown below. The given compound must be cyclic in nature. It must be planar. There must be no sp 3 hybridized carbon in the given compound. The compound must follow Huckel’s rule of aromaticity that is ( 4 n + 2 ) π electron system must be present. If the given compound follows first three conditions but it follows 4 n π electron system, then it is antiaromatic in nature. If the given compound fails to follow any of the above conditions then it is non-aromatic in nature.

Question

#1. Retro-Electrochemical Reaction: A ring has been made, but the light is causing the molecule to un- cyclize. Undo the ring into all possible molecules. (2pts, no partial credit) hv

Answer 1

Question

Definition Definition Rule that estimates whether a given organic planar ring structure will show an aromatic property. A cyclic ring molecule is said to follow Hückel’s rule if the л-electrons count in a molecule is [4n+2], where n stands for a positive numerical value. It is also called the [4n+2] rule. Hückel's rule, sometimes referred to as the aromaticity rule, is one but not the only criteria to judge a molecule for aromaticity.

Chapter 16.7, Problem 16.9P

(a)

Interpretation Introduction

Interpretation:

The energy diagram for the MOs of a planar cyclooctatetraenyl system using the polygon rule is to be drawn.

Concept introduction:

The conditions that a molecule must follow to be an aromatic are shown below.

The given compound must be cyclic in nature.

It must be planar.

There must be no sp3 hybridized carbon in the given compound.

The compound must follow Huckel’s rule of aromaticity that is (4n+2)π electron system must be present.

If the given compound follows first three conditions but it follows 4nπ electron system, then it is antiaromatic in nature. If the given compound fails to follow any of the above conditions then it is non-aromatic in nature.

(b)

Interpretation Introduction

Interpretation:

The filling of eight pi electrons for cyclooctatetraene, the nature of electronic configuration as aromatic or antiaromatic and the possibility of attaining aromaticity by the gain or loss of electrons is to be stated.

Concept introduction:

The conditions that a molecule must follow to be an aromatic are shown below.

The given compound must be a cyclic in nature.

It must be planar.

There must be no sp3 hybridized carbon in the given compound.

The compound must follow Huckel’s rule of aromaticity that is (4n+2)π electron system must be present.

If the given compound follows first three conditions but it follows 4nπ electrons, then it is antiaromatic in nature. If the given compound fails to follow any of the above conditions then it is non-aromatic in nature.

(c)

Interpretation Introduction

Interpretation:

The pictorial representations for the three bonding and the two non-bonding MOs of cyclooctatetraene are to be drawn.

Concept introduction:

Molecular orbital diagrams are used for determining the bonding in molecules using linear combination of atomic orbitals. Number of molecular orbitals formed is equal to the number of atomic orbitals that combine with each other.

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#1. Retro-Electrochemical Reaction: A ring has been made, but the light is causing the molecule to un- cyclize. Undo the ring into all possible molecules. (2pts, no partial credit) hv

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I have a question about this problem involving mechanisms and drawing curved arrows for acids and bases. I know we need to identify the nucleophile and electrophile, but are there different types of reactions? For instance, what about Grignard reagents and other types that I might not be familiar with? Can you help me with this? I want to identify the names of the mechanisms for problems 1-14, such as Gilman reagents and others. Are they all the same? Also, could you rewrite it so I can better understand? The handwriting is pretty cluttered. Additionally, I need to label the nucleophile and electrophile, but my main concern is whether those reactions differ, like the "Brønsted-Lowry acid-base mechanism, Lewis acid-base mechanism, acid-catalyzed mechanisms, acid-catalyzed reactions, base-catalyzed reactions, nucleophilic substitution mechanisms (SN1 and SN2), elimination reactions (E1 and E2), organometallic mechanisms, and so forth."

Answer 2

Question

Definition Definition Rule that estimates whether a given organic planar ring structure will show an aromatic property. A cyclic ring molecule is said to follow Hückel’s rule if the л-electrons count in a molecule is [4n+2], where n stands for a positive numerical value. It is also called the [4n+2] rule. Hückel's rule, sometimes referred to as the aromaticity rule, is one but not the only criteria to judge a molecule for aromaticity.

Chapter 16.7, Problem 16.9P

(a)

Interpretation Introduction

Interpretation:

The energy diagram for the MOs of a planar cyclooctatetraenyl system using the polygon rule is to be drawn.

Concept introduction:

The conditions that a molecule must follow to be an aromatic are shown below.

The given compound must be cyclic in nature.

It must be planar.

There must be no sp3 hybridized carbon in the given compound.

The compound must follow Huckel’s rule of aromaticity that is (4n+2)π electron system must be present.

If the given compound follows first three conditions but it follows 4nπ electron system, then it is antiaromatic in nature. If the given compound fails to follow any of the above conditions then it is non-aromatic in nature.

(b)

Interpretation Introduction

Interpretation:

The filling of eight pi electrons for cyclooctatetraene, the nature of electronic configuration as aromatic or antiaromatic and the possibility of attaining aromaticity by the gain or loss of electrons is to be stated.

Concept introduction:

The conditions that a molecule must follow to be an aromatic are shown below.

The given compound must be a cyclic in nature.

It must be planar.

There must be no sp3 hybridized carbon in the given compound.

The compound must follow Huckel’s rule of aromaticity that is (4n+2)π electron system must be present.

If the given compound follows first three conditions but it follows 4nπ electrons, then it is antiaromatic in nature. If the given compound fails to follow any of the above conditions then it is non-aromatic in nature.

(c)

Interpretation Introduction

Interpretation:

The pictorial representations for the three bonding and the two non-bonding MOs of cyclooctatetraene are to be drawn.

Concept introduction:

Molecular orbital diagrams are used for determining the bonding in molecules using linear combination of atomic orbitals. Number of molecular orbitals formed is equal to the number of atomic orbitals that combine with each other.

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Answer 3

Question

Definition Definition Rule that estimates whether a given organic planar ring structure will show an aromatic property. A cyclic ring molecule is said to follow Hückel’s rule if the л-electrons count in a molecule is [4n+2], where n stands for a positive numerical value. It is also called the [4n+2] rule. Hückel's rule, sometimes referred to as the aromaticity rule, is one but not the only criteria to judge a molecule for aromaticity.

Chapter 16.7, Problem 16.9P

(a)

Interpretation Introduction

Interpretation:

The energy diagram for the MOs of a planar cyclooctatetraenyl system using the polygon rule is to be drawn.

Concept introduction:

The conditions that a molecule must follow to be an aromatic are shown below.

The given compound must be cyclic in nature.

It must be planar.

There must be no sp3 hybridized carbon in the given compound.

The compound must follow Huckel’s rule of aromaticity that is (4n+2)π electron system must be present.

If the given compound follows first three conditions but it follows 4nπ electron system, then it is antiaromatic in nature. If the given compound fails to follow any of the above conditions then it is non-aromatic in nature.

(b)

Interpretation Introduction

Interpretation:

The filling of eight pi electrons for cyclooctatetraene, the nature of electronic configuration as aromatic or antiaromatic and the possibility of attaining aromaticity by the gain or loss of electrons is to be stated.

Concept introduction:

The conditions that a molecule must follow to be an aromatic are shown below.

The given compound must be a cyclic in nature.

It must be planar.

There must be no sp3 hybridized carbon in the given compound.

The compound must follow Huckel’s rule of aromaticity that is (4n+2)π electron system must be present.

If the given compound follows first three conditions but it follows 4nπ electrons, then it is antiaromatic in nature. If the given compound fails to follow any of the above conditions then it is non-aromatic in nature.

(c)

Interpretation Introduction

Interpretation:

The pictorial representations for the three bonding and the two non-bonding MOs of cyclooctatetraene are to be drawn.

Concept introduction:

Molecular orbital diagrams are used for determining the bonding in molecules using linear combination of atomic orbitals. Number of molecular orbitals formed is equal to the number of atomic orbitals that combine with each other.

Expert Solution & Answer

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Answer 4

Question

Definition Definition Rule that estimates whether a given organic planar ring structure will show an aromatic property. A cyclic ring molecule is said to follow Hückel’s rule if the л-electrons count in a molecule is [4n+2], where n stands for a positive numerical value. It is also called the [4n+2] rule. Hückel's rule, sometimes referred to as the aromaticity rule, is one but not the only criteria to judge a molecule for aromaticity.

Chapter 16.7, Problem 16.9P

(a)

Interpretation Introduction