The calculated spin-only magnetic moments (BM) of the anionic and cationic species of [Fe(H2O)6]2 and [Fe(CN)6], respectively, are :

Question

The calculated spin-only magnetic moments (BM) of the anionic and cationic species of [Fe(H2O)6]2 and [Fe(CN)6], respectively, are : (A) 4.9 and 0 (B) 2.84 and 5.92 (C) 0 and 4.9 (D) 0 and 5.92

Tardigrade Admin · Accepted Answer

[Fe(CN)6]4-[Fe(H2O)6]2+ Fe2+ arrow 3d6t62geg0 Fe2+ arrow 3d6t42geg2 μ=√n(n+2) μ=√n(n+2)=√24=4.9BM μ=0

Q. The calculated spin-only magnetic moments (BM) of the anionic and cationic species of $[F e (H_{2} O)_{6}]_{2}$ and $[F e (CN)_{6}]$ , respectively, are :

4.9 and 0

2.84 and 5.92

0 and 4.9

0 and 5.92

$[F e (CN)_{6}]^{4 -} [F e (H_{2} O)_{6}]^{2 +}$
$F e^{2} + \to 3 d^{6} t_{2 g}^{6} e g^{0} F e^{2} + \to 3 d^{6} t_{2 g}^{4} e g^{2}$
$μ = n (n + 2) μ = n (n + 2) = 24 = 4.9 BM$
$μ = 0$

Q. The calculated spin-only magnetic moments (BM) of the anionic and cationic species of [Fe(H2​O)6​]2​ and [Fe(CN)6​], respectively, are :