Metal complexes show different colours due to d-d transitions.The complex absorbs light of specific
Автор: arwa and physics
Загружено: 2026-02-13
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Crystal field splitting by various ligands
Metal complexes show different colours due to d-d transitions. The complex absorbs light of specific wavelength to promote the electron from t2 g to eg level. The colour of the complex is due to the transmitted light, which is complementary of the colour absorbed.
The wave number of light absorbed by different complexes of Cr ion are given
Out of the ligands “A”, “B”, “C” and “D”, which ligand causes maximum crystal field splitting?
Why?
OR
Which of the two, “A” or “D” will be a weak field ligand? Why?
(b) Which of the complexes will be violet in colour? [CrA 6]3- or [CrB6]
3+ and why? (Given: If 560 -
570 nm of light is absorbed, the colour of the complex observed is violet.)
(c) If the ligands attached to Cr3+ ion in the complexes given in the table above are water, cyanide
ion, chloride ion, and ammonia (not in this order)
Identify the ligand, write the formula and IUPAC name of the following
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