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With help of crystal field energy level diagram, level diagram explain why the complex [cr(en)3]3+ is coloared |
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Answer» ain:Why [Cr(en)3]3+ is coloured using Crystal Field ENERGY diagram.Explaination:Crystal Field Energy Diagram refers to arrangement of ELECTRONS in divided d orbital in OCTAHEDRAL complex.Cr in +3 oxidation state :So , it has 3 electrons in the d orbital.Now , since Ethelyne-diamine is a weak ligant, they electrons would not form PAIRS, instead they will arrange singly along the t²g part of divided d orbital.Refer to the attached diagram:We can see that 3 electrons are arranged singly along the t²g and hence its paramagnetic character SHALL allow colour production .[Hence this complex is coloured] |
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