Resonance, Chemistry

Assignment Help:

 

Sometimes more than one valence structure is possible and there shows to be no unique assignment. A familiar organic example is in the disposition of single and double C-C bonds in benzene. In the carbonate ion 11) the three structures shown are equivalent by symmetry, and experimentally all three C-O bonds have same length. We describe this situation as resonance between the different structures, and represent it by the double headed arrows shown in 11. The term is misleading as it suggests a fast oscillation between different structures, which certainly does not happen. It is better to think of a wavefunction that is contracted by combining the structures, none of which on their own describe the bonding correctly.

 

 

2244_Untitled.png

                                   11

Resonance may also be appropriate with different valence structures that are not equivalent but look equally plausible, as in nitrous oxide (N2O 12).

 

 

1588_Untitled.png


Related Discussions:- Resonance

THE F BLOCK ELEMENTS, DISCUSS THE WEAKNESSES OF THE VALENCE BOND THEORY AND...

DISCUSS THE WEAKNESSES OF THE VALENCE BOND THEORY AND CRYSTAL FIELD THEORY

Converting Measurements, Doctors prescribe medicine based upon body weight....

Doctors prescribe medicine based upon body weight. The recommended dose is 5.0 mg antibiotic per kg body weight and the antibiotic is dissolved to form a solution with a concentrat

APPLICATIONS OF INORGANIC COMPOUNDS, find two different substances and how ...

find two different substances and how they are produced. Once you have this information, look at their properties and how they are used, and explain how these properties affect th

The total number of orbitals in an energy level designated, The total numbe...

The total number of orbitals in an energy level designated by principal quantum number  n is equal to: (1) 2n                    (2) 2n 2            (3) n

Show redox reactions as electron transfer, Q. Show Redox Reactions as Elect...

Q. Show Redox Reactions as Electron Transfer? Ans. Oxidation is a process where electrons are lost, and reduction is a process where electrons are gained. For example,

Amongst the following covalent bonding, Amongst the following covalent bond...

Amongst the following covalent bonding is found in: (1) Sodium chloride (2) Magnesium chloride (3) Water (4) Brass Ans:  Water

Evaluate the percentage ionisation of salt, (a) Which aqueous solution has ...

(a) Which aqueous solution has higher concentration 1 molar or 1 molar solution of the same  solute? Give reason. (b) 0.5g KCI was dissolved in 100g water and the solution origi

Tests for acetone - indigo test and iodoform test, Tests for acetone - Indi...

Tests for acetone - Indigo test and Iodoform test (a) Indigo test: When a small amount of orthonitrobenzaldehyde is added to approximately 2 ml. of acetone and it is diluted al

Atoms and molecules, name the smallest element that has all properties of a...

name the smallest element that has all properties of an element

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd