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

Free-radical mechanism, Free-radical mechanism: Free-radical polymerisat...

Free-radical mechanism: Free-radical polymerisation is started by organic peroxide or other reagents that decompose to give free radicals.

Equilibrium equation derivation, My problem is how should the specific equa...

My problem is how should the specific equation be derived using boundary condition. I have the final equation (which is based on Langmuir isotherm) and I know the boundary conditio

Zakir, how to calculate the Fluoride ion concentration by ion meter?

how to calculate the Fluoride ion concentration by ion meter?

Metal-complexex, Ask question #Minimum 100 wordefine-coordination-position-...

Ask question #Minimum 100 wordefine-coordination-position-isomerism ds accepted#

Radioactivity, Radioactive decay is a process whereby unstable nuclei chang...

Radioactive decay is a process whereby unstable nuclei change into more stable nuclei by emitting particles of different kinds. Alpha, beta and gamma (α, β and γ) radiation was cla

Compute the kerosene - water ratio to remove nicotine, One step in the prep...

One step in the preparation of nicotine sulfate from tobacco is the extraction of nicotine from aqueous solution by kerosene.  The table below shows equilibrium data for the distri

#title.titration., How standard solutions are prepared in industries

How standard solutions are prepared in industries

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