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snow_tiger [21]
3 years ago
13

The visible spectrum of the Cr(acac)3

Chemistry
1 answer:
Sati [7]3 years ago
3 0

Explanation:

The observable visible spectrum of Cr(acac)3 complex is different from that of

[Cr(en)3]Br3 due to strength of bonded ligand in the coordination sphere.

en is a strong field ligand compared to acac thus pairing  occurs. In both the complexes

Cr is in +3 state, configuration [Ar] 3d^3. There are 3 unpaired e in Cr(acac)3 whereas 1 unpaired e in [Cr(en)3]Br3 due to pairing.

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<span>Important information to solve the exercise :
Substance ΔHf (kJ/mol):
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