Question

Which of the following is the most stable structural arrangement of geometric isomers? a. ​Octahedral structure​...

Which of the following is the most stable structural arrangement of geometric isomers?

a.

​Octahedral structure​
b.

​Tetrahedral structure
c.

​Trigonal bipyramid structure
d.

​Pentagonal bipyramid structure
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Homework Answers

Answer #1

The octahedral arrangement is the most stable structural arrangement for isomers.

Because,

1) It is more (energetically) favourable to form six bonds rather than four (in Td), five (in TBP or Pentagonal).

2) The Crystal Field Stabilization Energy CFSE is usually greater for octahedral than tetrahedral or TBP or Pentagonal complexes. Remember that Δo is bigger than Δtet (in fact, Δtet 4/9 Δo).

Hence Answer option : (a) Octahedral Structure.

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