Which ligand has highest stability?

Which ligand has highest stability?

[Cd(CN)4]2− complex has the highest stability constant at 298 K. The cyano and ammine complexes are far more stable than those formed by halide ion.

How do you determine the stability of the complexes?

The most important characteristics of the central atom, determining the stability of the complex compound, are the degree of oxidation (charge on the central ion in the case of ionic complexes), the dimensions, and the electronic structure.

Which of the complexes is most stable?

As C2O42− is a bidentate chelating ligand, it forms rings and hence [Fe(C2O4)3]3− is the most stable complex.

Which of the following complex ion has least stability?

Cobalt with odd atomic number (=27) does not form a monometallic carbonyl compound. Thus, [Co(CO)6]3+ is least stable among the given.

Which out of two complexes is more stable and why?

Answer : [Fe(C2O4)3]3- is more stable. Because of Chelation.

Which factor affect the stability of complexes?

The different factors that affect the stability of complexes formed in the solution are given as below: Nature of the central metal atom/ion. Nature of the ligands. Amount of Metal-Ligand Covalent Characters Present in Complexes.

What factors affect stability of complex?

The higher the covalent character of the complex, the greater the stability of complex compounds. The nature of the bond present between metal and ligands also affects the stability of complexes. Higher the covalent character of the complex, the greater the stability of complex compounds.

How do you know which complex ion is most stable?

From ligand strength, we can see that CN− is strongest ligand among all so [Fe(CN)6]3− is most stable complex ion.

Why is a stronger ligand than CL minus?

CO is a strong ligand due to the presence of π -bonds, available for donating π -electrons to the metal-ion/atom. While, Cl− has pair of electrons but are less available for donation (due to more delocalised nature of π -electrons).

Which of the following factors affect the stability of the complex?

The stability of metal ion complexes varies due to various factors, namely the nature of ligands, charge on the metal ion and the size of the metal ion.

Which coordination complex is more stable?

Chelate complexes are more stable than the analogous complexes with monodentate ligands.

What is meant by stability of a complex ion?

The stability of a complex ion depends on : (i) Charge on the central metal ion: Greater the charge on the central metal ion, greater is the stability of the complex. (ii) Basic nature of the ligand: Greater the basic strength of the ligand, greater is the stability of the complex.

What is stability of complex ion?

The stability of a complex in solution means the degree of association between the metal ion and the ligands involved in the state of equilibrium. The magnitude of the (stability or formation) equilibrium constant for the association express quantitatively the stability.

How do you identify ligands in complex ions?

Anionic ligands have names ending in ‘o’. The name of a cationic complex ion ends in the name of the central metal ion with the oxidation state shown as a Roman numeral in parantheses at the end of the metal’s name, eg, iron(III). Ligands are named before the central metal atom.

Which of the following factors affect the stability of complexes?

Why CO is a stronger ligand than CN?

It has to do with the energies of the frontier orbitals. As you rightly said, both species are isoelectronic, and the orbital energies in CO are lower than those in CN−. The lower HOMO energy means that CO is a poorer σ donor orbital towards the metal than CN−. Likewise the lower LUMO makes it a better π acceptor.

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