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

Matter and its constituent, v CO has same electrons as or the ion that is i...

v CO has same electrons as or the ion that is isoelectronic with co is

Solution, How we get 49 gm = 1 eqv

How we get 49 gm = 1 eqv

The differential manometer , Normal 0 false false false ...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Uses of glucose - biomolecules, Uses of Glucose (a) Glucose is used in ...

Uses of Glucose (a) Glucose is used in the conservation of fruits and making of jams and jellies. (b) Glucose is used in the preparation of confectionary and as a sweetening

Hydrides.., How to write conclusion for this topic hydrides

How to write conclusion for this topic hydrides

Molar conductivity, Molar conductivity: The rate of charge transfer is ...

Molar conductivity: The rate of charge transfer is proportional to the number of ions in the solution between the plates, which itself will vary with the concentration, c, of

Uses of benzaldehyde - aldehydes and ketones, Uses of Benzaldehyde - Aldehy...

Uses of Benzaldehyde - Aldehydes and Ketones Benzaldehyde is used, (a) In perfumery (d) In manufacture of dyes (c) In preparation of benzoic acid, cinnamic acid, cinna

4d , Unlike components of the 3 d series, 4 d and 5 d elements have litt...

Unlike components of the 3 d series, 4 d and 5 d elements have little simple aqueous cationic chemistry. The main exceptions are La3+ and Y3+, and Ag+, which builds some soluble

The possible values of magnetic quantum number would be, If the value of az...

If the value of azimuthal quantum number is 3, the possible values of magnetic quantum number would be: (1) 0, 1, 2, 3          (2) 0, - 1, - 2, - 3    (3) 0 ± 1±  2,± 3

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