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| 1. |
The spin only magnetic moment of [MnBr_4]^(2-)is 5.9BM. Predict the geometry of the complex ion. |
| Answer» Solution :Since the coordination number of `Mn^(2+)` ion in the COMPLEX ion is 4, the geometry may be EITHER tetrahedral `(sp^(3))` or square planar `(dsp^(2))`. But the fact that the MAGNETIC moment of the complex ion is 5.9BM, it should be tetrahedral in shape but not square planar. This is because of the presence of 5 UNPAIRED electrons in the d-orbitals. | |