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

Salt analysis, why is hcl used in acid radical

why is hcl used in acid radical

Define rutherford's experiment, Ernest Rutherford in 1909 conducted what is...

Ernest Rutherford in 1909 conducted what is now a famous experiment where he bombarded gold foil with alpha particles (Helium nuclei). A source which undergoes for alpha decay is

The bohr orbit radius for the hydrogen atom, The Bohr orbit radius for the ...

The Bohr orbit radius for the hydrogen atom (n=1)   is approximately  0.530 Å . The radius for the first excited state (n=2)  orbit is: (1) 0.13Å

Show the reduction process on mixing acetone and chloroform, On mixing acet...

On mixing acetone and chloroform, a reduction in total volume occurs. What kind of deviations from ideal behavior for solutions is given in this case and why?

Chemistry of cereals, The word "cereal" is derived from the name of the Rom...

The word "cereal" is derived from the name of the Roman grain or harvest goddess, Ceres. Cereals are the seeds of the grass family. These are the complex carbohydrates and consist

Wet test, what is the easy wet test of copper?

what is the easy wet test of copper?

Reactions, Backward reaction definion

Backward reaction definion

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