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

Vapour pressure, Vapour pressure of water at 293 k is 17.535mmHg calculate ...

Vapour pressure of water at 293 k is 17.535mmHg calculate the vapour pressure of water at 293 k when 25g of glucose is dissolved in 450 g of water?

Want to learn, please teach me organic chemistry in a better that i could g...

please teach me organic chemistry in a better that i could get 99 percent marks

Scientific and Ordinary Notation, How is 7.979 times 10 to the 4th in scien...

How is 7.979 times 10 to the 4th in scientific notation for the ordinary notation: 7979?

Nucleophilic addition reactions, Nucleophilic addition reactions (i) Ca...

Nucleophilic addition reactions (i) Carbonyl compounds give nucleophilic addition reaction along with those reagents which on dissociation give electrophile also nucleophile.

Bicyclic compounds, how to do nomenclature of bicyclic compounds with funct...

how to do nomenclature of bicyclic compounds with functional groups??

Define geometrical isomerism, Isomers, which vary in the orientation of gro...

Isomers, which vary in the orientation of groups around the double bounded carbon atoms, are known as geometrical Isomers. It is also known as Cis-Trans Isomerism.

Which corrodes is faster?, Which of the following is corrodes faster?Iron p...

Which of the following is corrodes faster?Iron pole in sea water or iton pole on the beach? Ans) There are various ways of reducing and preventing this form of corrosion. One w

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