Limitations of hybrid orbitals, Chemistry

Assignment Help:

Q. Limitations of Hybrid orbitals?

  • It gives no idea whether a particular metal ion would prefer to have any particular geometry say, an octahedral or tetrahedral with a given ligand.
  • Even if we know that a complex formed is four coordinated we cannot decide whether it would be tetrahedral or square planar. It is only after measuring the magnetic moment that we can decide the correct geometry. For example in the case of two parallel compounds, [Ni(CN)4]2- and [Ni(Cl)4]2the former is a square planar compound the other is tetrahedral. This example leads to the next weakness.
  • The important role ligands play in deciding the geometry of the resultant complex is not taken into account by this theory.
  • It gives only an approximate magnetic moment value which in some cases may differ considerably.
  • Besides magnetic property, it does not throw any light on other physico-chemical Properties of complexes like-spectral, stability, reactivity etc.

Thus we see the need for a more comprehensive theory which could explain the observed properties and if possible, predict the formation of new compounds. Even if such a theory may not be all comprehensive, it should at least be able to recognise the factors responsible for the typical properties of complexes. Crystal field theory is such an attempt and in the next sub-section we shall deal with this new theory.


Related Discussions:- Limitations of hybrid orbitals

Atoms and molecules , what is laws of chemical combination............answe...

what is laws of chemical combination............answer should be in 250 words

Manufacturing process of glass, Q. Describe the manufacturing process of gl...

Q. Describe the manufacturing process of glass. Ans. Manufacturing process of glass 1.      Melting: Raw materials, in proper properties mixed with pellets, are finally po

Westron, explain manufacturing process of westron also explain its advantag...

explain manufacturing process of westron also explain its advantages and disadvantages

Assignment helper, Hello I am assignment helper an I''d like to work with y...

Hello I am assignment helper an I''d like to work with you team

PERIODIC TABLE, PERIODIC TABLE and PERIODICITY OF ELEMENT

PERIODIC TABLE and PERIODICITY OF ELEMENT

Effect of concentration, Q. Show the Effect of concentration on Chemical Eq...

Q. Show the Effect of concentration on Chemical Equilibrium? Ans. When more of one of the chemicals is added to the reaction, more collisions take place moving the reactio

Organic chemistry, What is electron migration effects and mention their app...

What is electron migration effects and mention their applications

Project, to study the presence of aroma,taste, ph value and tannic acid of ...

to study the presence of aroma,taste, ph value and tannic acid of different tea leaves

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