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Shweta Thakur posted an Question

October 01, 2020 • 21:42 pm

30 points

IIT JAM
Chemistry (CY)

Plz calculate spin quantum number for c part aladab apiu smly gnilte musuttk va yusials

Laladab apiujhffgvg smly gnilte musuttk va yusials khmm

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Dinesh khalmaniya 1

Mn2+ d5 electrons and NCS is strong field ligand so it has only one unpaired electrons. so calculate spin only magnetic moment using the formula √n(n+2) = √3 = 1.73.
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sir coordination complex , geometry first transition series d block.... main topic hai to ye abhi pdna Chahiye ya coordatiom compouumd vale chapter ke saatg
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cordination k sath
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sweta it question ka ans kya diya he
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actually d5 low spin me orbital contribution he so 1.73 BM se jada ho. i.e., 2.2
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sir college assignment Ka question hai
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sir answer iska vary kyun kr rha
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yha orbital contribution he so ans unexpected observed hota he.
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Priyanshu kumar Best Answer

Mn2+ configuration d5 spin only magnetic moment value=5.91BM but the experimental value of this complex is 6.06BM
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Since each isothiocyanate ligand has a single negative charge, the oxidation state of the manganese ion is +2. Since Mn(II) is d5, there are two possibilities for an octahedral complex. low-spin t2g5 with one unpaired electron, or high-spin t2g3 eg2, with five unpaired electrons. The observed magnetic moment of 6.06 BM is close to the spin-only value for five unpaired electrons, (5×7)^1/2=5.92 BM Therefore, this complex is high spin and has a t2g3 eg2 configuration.
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samagh ni aa rha sir MN+2 main to 1 unpaired hain n
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iska observed magnetic moment value 6.06 BM Hota hai
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5 unpaired electrons hone se octahedral complex me value iske approx aata hai
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but
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5 unpaired kaise higya unpaired to 1 hi
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These are in accordance with experimentally determined value...we calculate it theoretically
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sir coordatiom compoun start ni kiya ye main
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d block main ye question dala hua
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koi nhi d block ke magnetic part me ye ques honge...dono ko sath padh lo
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Nahi hai
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yha skip bhi kar sakti ho...magnetic properties of coordination complexes me detail me padhna hai
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okok sir
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sir
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