Among the following complexes the one which shows Zero crystal field stabilizations energy (CFSE)?

[N n (H_{2} O)_{6}]^{3 +}

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[F e (H_{2} O)_{6}]^{3 +}

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[C o (H_{2} O)_{6}]^{2 +}

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[C o (H_{2} O)_{6}]^{3 +}

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Solution

The correct option is A $[F e (H_{2} O)_{6}]^{3 +}$
For the complex $[F e (H_{2} O)) 6]^{3 +}$ , the outer electronic configuration of $F e^{+ 2}$ is $3 d^{5} (t_{2 g}^{1, 1, 1} e_{g}^{1, 1})$
The crystal field stabilization energy (CFSE) is:

$[- 0.4 \times number of electrons in t_{2 g} + 0.6 \times number of electrons in e_{g}] Δ_{o} = [- 0.4 \times 3 + 0.6 \times 2] Δ_{o} = 0$ .

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Similar questions

Among the following complexes the one which shows Zero crystal field stabilization energy (CFSE) is

Q. Among the following complexes, the one which shows zero crystal field stabilization energy (CFSE) is:

Q. Among the complex ions

[T i (H_{2} O)_{6}]^{3 +}, [C r (H_{2} O)_{6}]^{2 +}, [F e (H_{2} O)_{6}]^{2 +}

and

[C o (H_{2} O)_{6}]^{2 +}

, the one that shows strongest distortion from regular octahedral structure is:

The colour of the coordination compounds depends on the crystal field splitting. What will be the correct order of absorption of wavelength of light in the visible region, for the complexes, $[C o (N H_{3})_{6}]^{3 +}, [C o (C N)_{6}]^{3 -}, [C o (H_{2} O)_{6}]^{3 +}$
$[C o (N H_{3})_{6}]^{3 +}, [C o (C N)_{6}]^{3 -}, [C o (H_{2} O)_{6}]^{3 +}$
(a) $[C o (C N)_{6}]^{3 -} > [C o (N H_{3})_{6}]^{3 +} > [C o (H_{2} O)_{6}]^{3 +}$
(b) $[C o (N H_{3})_{6}]^{3 +} > [C o (H_{2} O)_{6}]^{3 +} > [C o (N H_{3})_{6}]^{3 +}$
(c) $[C o (H_{2} O)_{6}]^{3 +} > [C o (N H_{3})_{6}]^{3 +} > [C o (C N)_{6}]^{3 -}$
(d) $[C o (C N)_{6}]^{3 -} > [C o (N H_{3})_{6}]^{3 +} > [C o (H_{2} O)_{6}]^{3 +}$

Q. What is the crystal field stabilization energy (CFSE) of

[F e (H_{2} O)_{6}]^{2 +}

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Among the following complexes the one which shows Zero crystal field stabilizations energy (CFSE)?

The correct option is A [Fe(H2O)6]3+For the complex [Fe(H2O))6]3+, the outer electronic configuration of Fe+2 is 3d5(t1,1,12ge1,1g)The crystal field stabilization energy (CFSE) is: [−0.4×number of electrons in t2g+0.6×number of electrons in eg]Δo=[−0.4×3+0.6×2]Δo=0.