The resonance structure for each compound is to be represented, and formal charges, where appropriate are to be shown. Concept introduction: A resonance structure is one of two or more Lewis structures for a single molecule that cannot be represented accurately by only one Lewis structure. In resonance structures, the electrons are able to move to help to stabilize the molecule and, the compound should have same number of electrons Movement of electron is shown by curved arrows in the compound. In a molecule, addition of non-bonded electrons and number of bonds is subtracted by the valence electrons on atom, this is known as formal charge.

Question

The Concept of Aromaticity 21.15 State the number of 2p orbital electrons in each molecule or ion. (a) (b) (e) (f) (c) (d) (h) (i) DA (k) 21.16 Which of the molecules and ions given in Problem 21.15 are aromatic according to the Hückel criteria? Which, if planar, would be antiaromatic? 21.17 Which of the following structures are considered aromatic according to the Hückel criteria? ---0-0 (a) (b) (c) (d) (e) (h) H -H .8.0- 21.18 Which of the molecules and ions from Problem 21.17 have electrons donated by a heteroatom?

Answer 1

Question

Chapter 25, Problem 28QP

Interpretation Introduction

Interpretation:

The resonance structure for each compound is to be represented, and formal charges, where appropriate are to be shown.

Concept introduction:

A resonance structure is one of two or more Lewis structures for a single molecule that cannot be represented accurately by only one Lewis structure.

In resonance structures, the electrons are able to move to help to stabilize the molecule and, the compound should have same number of electrons

Movement of electron is shown by curved arrows in the compound.

In a molecule, addition of non-bonded electrons and number of bonds is subtracted by the valence electrons on atom, this is known as formal charge.

Expert Solution & Answer

Trending nowThis is a popular solution!

See solution

Check out sample textbook solution

Students have asked these similar questions

The Concept of Aromaticity 21.15 State the number of 2p orbital electrons in each molecule or ion. (a) (b) (e) (f) (c) (d) (h) (i) DA (k) 21.16 Which of the molecules and ions given in Problem 21.15 are aromatic according to the Hückel criteria? Which, if planar, would be antiaromatic? 21.17 Which of the following structures are considered aromatic according to the Hückel criteria? ---0-0 (a) (b) (c) (d) (e) (h) H -H .8.0- 21.18 Which of the molecules and ions from Problem 21.17 have electrons donated by a heteroatom?

1. Show the steps necessary to make 2-methyl-4-nonene using a Wittig reaction. Start with triphenylphosphine and an alkyl halide. After that you may use any other organic or inorganic reagents. 2. Write in the product of this reaction: CH3 CH₂ (C6H5)₂CuLi H₂O+

3. Name this compound properly, including stereochemistry. H₂C H3C CH3 OH 4. Show the step(s) necessary to transform the compound on the left into the acid on the right. Bri CH2 5. Write in the product of this LiAlH4 Br H₂C OH