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

Partition coefficient, what is the effect on the distribution of solute if ...

what is the effect on the distribution of solute if the solvents have mutual miscibility

States of matter, determination of molecular masses using victor meyer meth...

determination of molecular masses using victor meyer method

Predict the order of the reaction, Consider the reaction A → P. The change ...

Consider the reaction A → P. The change in concentration of A with time is shown in the given plot:  (i) Predict the order of the reaction.  (ii) Derive the mathematical expr

Preparation of iodoform, how will you test for the presence of the halogen ...

how will you test for the presence of the halogen in iodoform

Determine the crystal field stabilization energy, 1. (a)  Reacting Pt 2+ w...

1. (a)  Reacting Pt 2+ with two equivalents of each of the ligands NO 2 - and en, it is possible to prepare several complexes that could be described as both geometric and  opti

Functions of triglycerides - biomolecules, functions of triglycerides T...

functions of triglycerides The functions of triglycerides are as given (a) Triglycerides are energy reserves in the cells and tissues of living procedure. While digested, tr

What are hormones, What are hormones? State the function of the following h...

What are hormones? State the function of the following hormones: (a) Testosterone (b) Oxytocin

Formaldehyde, Formaldehyde: Formaldehyde is the initial member of the al...

Formaldehyde: Formaldehyde is the initial member of the aldehyde sequence. It is lie in green leaves of plants where its presence is supposed to be due to the reaction of with 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