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

Polyfunctional organic compounds, Polyfunctional Organic Compounds Orga...

Polyfunctional Organic Compounds Organic elements that have two or more functional groups are known polyfunctional compounds. Their IUPAC names are acquired as follows, 1. P

Endothermic Reaction, Why is ATP considered an endothermic reaction ?

Why is ATP considered an endothermic reaction ?

Geochemistry, GEOCHEMISTRY The chemical processes taking place in the c...

GEOCHEMISTRY The chemical processes taking place in the crust are especially important as they have build ores, concentrated mineral deposits that are exploited industrially

Metelurgy, general principle on metelurgy

general principle on metelurgy

Free radical addition reactions - organic chemistry, Free radical addition ...

Free radical addition reactions: Those reactions that include the initial attack by a free radical are termed as free radical reactions. Inculcation of hydrogen bromide to alk

Show crystal field splitting in square planar complexes, Q. Show Crystal Fi...

Q. Show Crystal Field Splitting in Square Planar Complexes? In a d 1 or d 2 system the electrons will always go in the 'e' set of orbitals with the release of corresponding a

SOLID STATE, HOW UNIT CELL AND SPACE LATTICE ARE RELATED TO EACH OTHER?

HOW UNIT CELL AND SPACE LATTICE ARE RELATED TO EACH OTHER?

Explain about the intrinsic breakdown, Explain about the Intrinsic breakdow...

Explain about the Intrinsic breakdown: It's because of the excitation of electrons into the conduction band across  the  energy  gap  under  the  condition  of  excessive  volt

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