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

Constant current coulometery., what is instrumentation for constant current...

what is instrumentation for constant current coulometry

Iupac.., 100 ch3-ch2-choh-ch2-ch2cl

100 ch3-ch2-choh-ch2-ch2cl

Stephen reaction - aldehydes and ketones, Stephen reaction - Aldehydes and ...

Stephen reaction - Aldehydes and Ketones Benzaldehyde is acquired by partial reduction of phenyl cyanide along with stannous chloride and passing dry HCl gas in ether solution

Atoms, how to find atomicity of an element

how to find atomicity of an element

Determine electron affinity, Q. How to Determine Electron Affinity? An...

Q. How to Determine Electron Affinity? Ans. Electron affinity is the measure of an atom's tendency to form a negative ion. Electron affinity can be measured by the amou

Actinide, what are ionization energy of actinides?

what are ionization energy of actinides?

Solutions and volumetric analysis, describe the steps necessary in preparin...

describe the steps necessary in preparing a standard solution of 1.0 molar NaOH

Mucopolysaccharide, descibe mucopolysaccharide and its biological importanc...

descibe mucopolysaccharide and its biological importance

Citric acid, function of citric acid in human body

function of citric acid in human body

What mass of sodium chloride is produced in the reaction, A reaction among ...

A reaction among sodium hydroxide and hydrogen chloride gas produces sodium chloride and water and a reaction of 22.85g of sodium hydroxide with 20.82g of hydrogen chloride gives o

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