Crystal Field Theory (CFT)

IMPORTANT

Crystal Field Theory (CFT): Overview

This Topic covers sub-topics such as Spectrochemical Series, Crystal Field Splitting in Octahedral Complexes, Crystal Field Splitting in Tetrahedral Complexes, Limitations of Crystal Field Theory and, Crystal Field Splitting in Square Planar Complexes

Important Questions on Crystal Field Theory (CFT)

HARD
IMPORTANT

The value of the spin only magnetic moment for one of the following configurations is 2.84 BM. The correct one is

MEDIUM
IMPORTANT

Match List I with List II

  List I Complex   List II CFSE 0
A. CuNH362+ I. -0.6
B. TiH2O63+ II. -2.0
C. FeCN63- III. -1.2
D. NiF64- IV. -0.4

Choose the correct answer from the options given below:

MEDIUM
IMPORTANT

Which of the following complexes will exhibit maximum attraction to an applied magnetic field?

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IMPORTANT

The homoleptic and octahedral complex of Co2+ and H2O has ______ unpaired electron(s) in the t2g set of orbitals.

HARD
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The complex with highest magnitude of crystal field splitting energy 0 is

HARD
IMPORTANT

In potassium ferrocyanide, there are ______ pairs of electrons in the t2g set of orbitals.

HARD
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Match List-I with List-II.

Question Image

Choose the correct answer from the options given below:

 

MEDIUM
IMPORTANT

The magnitude of crystal field stabilisation energy (CFSE) in tetrahedral complexes is considerably less than in the octahedral field because

HARD
IMPORTANT

CFSE of octahedral complex of Mn2+ (low spin) will be: [Excluding pairing energy term ]

MEDIUM
IMPORTANT

Crystal Field Splitting Energy (CFSE) for CoCl64- is 18000 cm-1. The Crystal Field Splitting Energy (CFSE) for COCl42- will be

MEDIUM
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The correct order of decreasing field strength of the below given ligands is

NCS- S2- en SCN-
I II III IV

 

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The crystal filed theory is successful in explaining which of the following?

I. Ligands as point charges;

II. Formation and structures of complexes.

III. colour;

IV. Magnetic properties:

V . covalent character of metal-ligand bonding.

HARD
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Which of the following complex will absorb maximum wavelength of light?

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The arrangement of ligands in order of their crystal field splitting energies is called _____.

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Which of the following configuration of ions has zero CFSE in both strong and weak ligand fields ?

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Which of the following statement is correct ? (CFSE = Crystal Field Splitting Energy)

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In a coordination entity, the electronic configuration of the central metal ion is t2g3 eg1, draw the crystal field splitting diagram for the above complex.

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In a coordination entity, the electronic configuration of the central metal ion is t2g3 eg1, is the coordination compound a high spin or low spin complex?

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Draw a figure to show the splitting of d orbitals in square planar crystal field.

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IMPORTANT

Briefly outline crystal field splitting in square planar complexes.