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

Crystal system, how many forms are there in crystal system

how many forms are there in crystal system

Analytical chemistry, explain the notion of environmental analytical chemis...

explain the notion of environmental analytical chemistry

Explain haber-bosch process, Haber-Bosch Process Ammonia is one of the ...

Haber-Bosch Process Ammonia is one of the most significant intermediates. It is used, for example, for the production of fertilizers. Usually, ammonia is formed from hydrogen a

Geothermal energy, The power plants at Geysers use a dry steam cycle. The s...

The power plants at Geysers use a dry steam cycle. The steam enters the turbine at 250 o C and 30 bars represented by the point 1 in the steam h-s diagram here below. At the outlet

ALIPHATIC CHEMISTRY, ACCOUNT FOR THE STABILITY OF CONJUGATED DIENES

ACCOUNT FOR THE STABILITY OF CONJUGATED DIENES

Sets of quantum numbers is correct for an electron, Which of the following ...

Which of the following sets of quantum numbers is correct for an electron in 4f orbital: (1) n-=4, l=3. m+1, s= +1/2              (2) n-=4, l=4. m-4, s= -1/2

Measure the average molecular weight, Suppose you are required to make an a...

Suppose you are required to make an analysis of 317 lb of combustion gas and find it has the following composition: CO 2  60% CO    10% N 2      30% a)  What it the av

#atomic structure, Which have the same number of S electrons as the d - ele...

Which have the same number of S electrons as the d - electrons in fe2+

Uses of polyglycolic & polylactic acid, Uses of Polyglycolic acid,Polylacti...

Uses of Polyglycolic acid,Polylactic acid and Polyhydroxybutyrate PGA and PLA (90 : 10) is utilized to form absorbable structure to close an internal of external wound and has

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