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

Does ph affect the enzyme activity, The concentration of hydrogen ions in s...

The concentration of hydrogen ions in solution affects the enzyme activity. Every enzyme has maximal efficiency under an optimum pH. As pH is one of the factors for the denatura

3rd order reaction , how intigration of 3rd order reaction done by partial ...

how intigration of 3rd order reaction done by partial fraction method

Electronic configuration is not possible hund s rules, Which of the follow...

Which of the following electronic configuration is not possible according to Hund's rule: (1) 1s 2 2s 2                            (2) 1s 2 2s 1              (3) 1s 2

Crystallization, explain crystallization as a method of separating mixture

explain crystallization as a method of separating mixture

Transitions between energy levels, A red flame is produced when LiCl is hea...

A red flame is produced when LiCl is heated. How can I determine which transition between the energy levels produces this colour?

What are the primary source of energy, Q. What are the primary source of en...

Q. What are the primary source of energy ? Oils and fats form an integral part of the dietaries the world over. In the body they are the primary source of energy. As you know,

Acid base titration, the given solution contains 2.5g of laundry soap disso...

the given solution contains 2.5g of laundry soap dissolved per 250 cubic cm.determine the amount of free alkali in 350 cubic cm.

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