Top topic this week
Back to FAQs
Related FAQs
Frequently Asked Question
Questions asked by users might not always be phrased in the clearest way.
Why nickel complex with EDTA is colored?
Accepted Answer
Nickel complexes with EDTA are colored because of the formation of a tetrahedral complex between the metal ion and the EDTA ligand. The d-orbitals of the metal ion are split into two sets of orbitals, one set of higher energy and one set of lower energy, by the ligand field. The electrons in the d-orbitals of the metal ion can absorb light of a specific wavelength, which corresponds to the energy difference between the two sets of orbitals. This absorbed light is what gives the complex its color.
Articles you might like