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

Highest melting point, Highest melting point would be of: (1) He       ...

Highest melting point would be of: (1) He        (2) CsCl      (3)  NH 3   (4)  CHCl 3 Ans:  CsCl

Two dimensional potential , A particle is in the two dimensional potential ...

A particle is in the two dimensional potential well (V(x,y) =  ∞ for the outside of the well, V(x,y) = 0 for the inside of the well. (a)  Starting with the shrodinger equation,

Uses of aluminium, Q. Uses of Aluminium? Aluminium exhibits useful prop...

Q. Uses of Aluminium? Aluminium exhibits useful properties of low density, high thermal and electrical conductivity, and good corrosion resistance with non-toxic nature of the

Early theories of matter, Q. Early Theories of Matter? In ancient Greec...

Q. Early Theories of Matter? In ancient Greece philosophers discussed the nature of matter. The philosopher Democritus held that matter was composed of elementary particles cal

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