The observed magnetic moments of octahedral Mn³⁺, Fe³⁺ and Co³⁺ complexes are 4.95,6.06 and 0.00 BM… · ABC26IN0650
Subject: Inorganic Chemistry · Chapter: Coordination Chemistry · Topic: Coordination Compounds – General · Exam: JAM 2005-2022 · Marks: 2 · Difficulty: Medium
The observed magnetic moments of octahedral $\mathrm{Mn}^{3+}, \mathrm{Fe}^{3+}$ and $\mathrm{Co}^{3+}$ complexes are $4.95,6.06$ and 0.00 BM , respectively. The correct option for the electronic configuration of $\mathrm{Mn}^{3+}, \mathrm{Fe}^{3+}$ and $\mathrm{Co}^{3+}$ metal ions in these complexes, respectively, is
(a)$\mathrm{t}_{2 \mathrm{g}}^{4} \mathrm{e}_{\mathrm{g}}^{0}, \mathrm{t}_{2 \mathrm{g}}^{2} \mathrm{e}_{\mathrm{g}}^{2}$ and $\mathrm{t}_{2 \mathrm{g}}^{4} \mathrm{e}_{\mathrm{g}}^{2}$
(b)$\mathrm{t}_{2 \mathrm{g}}^{3} \mathrm{e}_{\mathrm{g}}^{1}, \mathrm{t}_{2 \mathrm{g}}^{5} \mathrm{e}_{\mathrm{g}}^{0}$ and $\mathrm{t}_{2 \mathrm{g}}^{6} \mathrm{e}_{\mathrm{g}}^{0}$
(c)$\mathrm{t}_{2 \mathrm{g}}^{3} \mathrm{e}_{\mathrm{g}}^{1}, \mathrm{t}_{2 \mathrm{g}}^{3} \mathrm{e}_{\mathrm{g}}^{2}$ and $\mathrm{t}_{2 \mathrm{g}}^{6} \mathrm{e}_{\mathrm{g}}^{0}$
(d)$\mathrm{t}_{2 \mathrm{g}}^{3} \mathrm{e}_{\mathrm{g}}^{1}, \mathrm{t}_{2 \mathrm{g}}^{3} \mathrm{e}_{\mathrm{g}}^{2}$ and $\mathrm{t}_{2 \mathrm{g}}^{4} \mathrm{e}_{\mathrm{g}}^{2}$