Why octahedral complexes of ni+2 must be outer orbitals?, Chemistry

Assignment Help:

The coordination number of Ni in the complex is 4, the configuration of Ni+2 , at first sight, shows that the complex is formed by sp 3 hybridization  and it is paramagnetic and it has two unpaired electrons. However, experiments show that the complex is diamagnetic, i.e. it do not have unpaired electrons, this is possible when 3d electrons rearrange against the hund's rule as shown in the below configuration. This is also in accordance with the fact that the ligand involved here is a strong i.e. CN- ion.Hence now dsp2 hybridization, involving one 3d, one 4s and two 4p orbitals, takes place leading to four dsp2 hybrid orbitals, each of which accepts four electron pairs from CN-  ion forming

[Ni (CN4)] 2 ion. Thus the resulting complex is square planar and is diamagnetic as it has no unpaired electrons.


Related Discussions:- Why octahedral complexes of ni+2 must be outer orbitals?

Why a covalent bond is directional, Why a covalent bond is directional?  ...

Why a covalent bond is directional?  Covalent bond is formed as a result of pairing of two electrons in atomic orbitals of two atoms. Bond then must lie along the direction of

General tests of esters, General Tests of Esters (a) Esters has sweet s...

General Tests of Esters (a) Esters has sweet smell (b)  Esters is neutral towards litmus (c) A pink colour is developed while one or two drops of phenolphthalein are adde

The electronic configuration & atomic number, The electronic configuration ...

The electronic configuration (outermost) of Mn +2   ion (atomic number of Mn= 25  ) in its ground state is: (1) 3d 5 , 4s o                          (2) 3d 4 , 4s 1   (3

Assignment, Discuss hartree-fock self consistent field theory . what are it...

Discuss hartree-fock self consistent field theory . what are its demerit.

How do we define the molecularity of a reaction, The number of species part...

The number of species participating in the slowest step of the reaction is known as molecularity of the reaction.

Organic compound, Nomenclature of polyfunctional complex organic compound

Nomenclature of polyfunctional complex organic compound

Double indicator, what is the role of a double indicator

what is the role of a double indicator

What are the interfacial defects, What are the Interfacial Defects  Gra...

What are the Interfacial Defects  Grain boundaries are interfaces where crystals of dissimilar orientations meet. A grain boundary is a single-phase interface, with crystals on

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