Question

4. For each of the Mn complexes in the table below, give electronic configurations (within the t2g and eg sets of 3d orbitals) that are consistent with the observed magnetic moments. u (BM) 1.8 Compound [Mn(CN)6]4 [Mn(CN)6]3- [Mn(NCS)6]4- [Mn(acac)3] 3.2 6.1 5.0

Answer 1

Dear Student, Kindly refer to the complete solution. Feel free to ask if you face difficulty in understanding any step of the solution attached, so that we can assist you in a better way.

Dear student [Mn (CM) 4- Let the oxidation state of men bex xt6(-1)=-4 2-6=-4 Tx=+2 Mnatomic no =25)= 305 45² Mnl+2) = 305 with CNo ligand un I ligand, Mn form low-spen. complex . 3d 3 ? -Carll1 tag tea eg → electronic config weation n= no. of unpaired elections: 1 Magnetic moment u= n(n+2) B.M ~ 1.8 B.M . [Mn (CN) 3 - het oxidation state of Man bex a +66-)=-3 x - 6=-3 a=t3 P.T.O.

Mn125)= 3d 48² ran(+3) = 304 with No ligand, Mn form low spin complex, 304 n=2 u=anente) - Jalata) - 18 = 38.m. [Mn (NCS) 4 - het oxidation tate of Man be x. x+6 (-1) = -4 a-6=-4 Ix=+2 Mn(95)= 30 45² Man(+2) = 305 With Nos ligand, men form high spin complex tg tg ģ 3015 n=5 Inenta) - √5(5+2) 35 = 6B.M. u P.T.O .

③ [onlacac)] het oxidation state a x+34)=0 ran be a Man195)= 305 45² - ranc+3) = 307 with acac ligand, ran form high spen complex 3d togg 3d 4 na tog n=4 u= rnente) = 54 (4+2) = Jay ~ 5 Bm Best wishes 11