Question

1Which metal complex ion is expected to be subject to a Jahn-Teller distortion?

a. [Cr(OH2)6]

3+ b.

[Cr(NH3)6]

2+

c. [Cr(CN)6]3– d. [Cr(bpy)3]

2+
​

Answer 1

Explanation:

[Cr(NH3)6] ias the answer

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Answer 2

The metal complexion is expected to be subject to a Jahn-Teller distortion is a. [Cr(OH2)6]3+.

• The complexes in which distortion is due to charge or lig-ands are known as the John teller complex.
• These compounds have asymmetrically filled orbitals.
• John teller distortion is due to charge, lig-and or metal.
• Octahedral is generally more distorted than tetrahedral.
• The first criterion taken for John's teller distortion is a charge.
• The higher the charge more is the distortion.
• Strong lig-and causes more distortion. for example, NH3 causes more distortion than H2O.