InterviewSolution
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InterviewSolution
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what is meant by stability of a co-ordination compound in solution? State the factors which govern stability of complexes. |
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Answer» Solution :The stability of a complex or co-ordination compounds refers to the extent upto which it exists in a solution as co-ordination SPHERE (i) Charge on the central metal ION: Greater the charges on the central ion. Greater the stability of complex. NATURE of the metal ion: Group 3 and 6 and inner transition elements form stable complexes when donor atoms of the ligands are N, O and F. The elements after group 6 of the transition metals form stable complex when the donor atoms of stable complex when the donor atoms of the ligands are the heavier members of N, O and F family (iii) Basic natureof the ligands: Greater the basic strength greater is the stability of the complex (iv) Presence of chelate rings : Its presence increases the stability of he complex .it is called chelate effect . ITIS maximum for the 5 and 6 MEMBERED rings. (v) Effect of multidentate cyclic ligand :If the ligands are II multidentate and cyclic without any steric effect the stability of the complex get increasd |
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