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

S block elements, Ask question #Minimum 100 what is sodium pump words accep...

Ask question #Minimum 100 what is sodium pump words accepted#

P-block element, show the characteristic of p-block element

show the characteristic of p-block element

The following compounds is ionic, Which of the following compounds is ionic...

Which of the following compounds is ionic: (1)  Kl        (2) CH 4                                    (3) Diamond           (4) H 2 Ans:   Kl

Molarity, calculate the molarity of sodiun in 0.66ml water

calculate the molarity of sodiun in 0.66ml water

Determing an electrovalent linkage, This of the following is an electroval...

This of the following is an electrovalent linkage: (1) CH 4                 (2) MgCl 2              (3)  SiCl 4                               (4) BF 3 Ans: MgCl

Safety in preparation of preparation of trimethyl, Safety in Preparation of...

Safety in Preparation of Preparation of trimethyl: 1 Use a round-bottomed flask equipped with a Claisen head (lagged with glass-wool), Quickfit thermometer (very expensive!)

Fe atomic number = 26 atom has the electronic arrangement, Fe(atomic number...

Fe(atomic number = 26) atom has the electronic arrangement: (1) 2, 8,  8, 8         (2) 2, 8, 16        (3) 2, 8,14, 2             (4) 2, 8, 12, 4 Ans:  2, 8,14, 2

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