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

Uses, Ask question #Minimuuses of nitoalkanem 100 words accepted#

Ask question #Minimuuses of nitoalkanem 100 words accepted#

Electrochemistry, how to determine the bond polarity and the potential of t...

how to determine the bond polarity and the potential of the two electrodes given: Eg Ag/Zn

Cyanohydrin .., industrial application of cyanohydrin.?

industrial application of cyanohydrin.?

Chemical bonding of elements, give 2 examples of compounds that are bonded ...

give 2 examples of compounds that are bonded in the following ways (a) Hydrogen bonding (b)Vander waal forces (c) Co-ordinate covalent bonding. Explain with the aid of diagram how

Explain the molecular basis for the rigor state, 1.  The pH of a 0.02 M sol...

1.  The pH of a 0.02 M solution of an acid was measured as 4.6.              a) What is the [H + ] of the solution?             b) What is the acid dissociation constant K an

Dehydration or decarboxylation of acids, Dehydration or Decarboxylation of ...

Dehydration or Decarboxylation of acids by MnO/300°C (1) This reaction occurs among two molecules of carboxylic acids. Both can be the same or different. (2) If one of the c

Oxoacids, examples of oxoacids and their definitions

examples of oxoacids and their definitions

Vitamin, #question describe the water soluble water? ..

#question describe the water soluble water? ..

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