How do you know which complex ion is more stable?

How do you know which complex ion is more stable?

The larger the Kf value of a complex ion, the more stable it is. Due to how large formation constants often are it is not uncommon to see them listed as logarithms in the form logKf.

Which complex has more stability?

Thermodynamically it is favoured that a complex having monodentate ligand tends to react with either polydentate or bidentate ligands in order to form a chelate complex, as this is driven by entropy. Thus, bidentate or polydentate are considered to be more stable.

How do you determine the stability of a complex?

(i) Charge on the central metal ion:In general, the greater the charge density on the central ion, the greater is the stability of its complexes. The greater the charge and the smaller the size of an ion, i.e., (the larger the charge/radius ratio of an ion), the greater is the stability of its complex.

Which ligand has highest stability?

Ligands such as DTPA, which have eight donor atoms are used to form complexes with large metal ions such as lanthanide or actinide ions which usually form 8- or 9-coordinate complexes. 5-membered and 6-membered chelate rings give the most stable complexes.

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.

What are the factors on which the stability of a complex depends?

There are several factors that can affect the stability of the metal complexes [2, 5, 8, 9], which include:

• Nature of the central metal ion.
• Nature of the ligand.
• Chelating effect.
• Macrocyclic effect.
• Resonance effect.
• Steric effect or steric hindrance.

Which is the most stable complex among the following and why?

We know that the stability of a complex increases by chelation. Therefore, the most stable complex is [Fe(C2O4)3]3-.

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 are the factors affecting stability of complex ion?

There are several factors that can affect the stability of the metal complexes [2, 5, 8, 9], which include: Nature of the central metal ion. Nature of the ligand. Chelating effect.

Which is most stable ion?

And since cyanide has the highest stability, we can say that $Fe(CN)_{6}]^{3-}$ is the most stable ion.

Which of the following complex ion has the least stability?

Which of the following complexes has minimum stability?

Which of the following has the least stability?

CH3−CH2−CH2⊕ is 1o carbocation. Hence, it is least stable.

What is meant by stability of complex ion?

The stability of a complex in solution refers to the degree of association between the two species involved in the state of equilibrium. The magnitude of the (stability or formation) equilibrium constant for the association, quantitatively express the stability.

Which one of the following metal complexes is most stable?

[Fe(C2O4)3]3− is the most stable complex because C2O4 is a strong feild ligand and forms chelation also due to its bidentatc ligand.

Which of the following ligands form more stable complex?

[Co(en)3]+3 is the most stable complex as en is a bidentate ligand which forms three member ring with metal. So, stability is due to chelation.

What is the decreasing order of stability of the ions?

This order completely changes when there are other functional groups attached to the carbocation. Therefore, the correct order of the stability of the ions is ${\rm I}{\rm I} > {\rm I} > {\rm I}{\rm I}{\rm I}$ i.e. option 4.

Which is least stable ion?

Be− is the least stable ion. Be(Is22s2) has stable electronic configuration, addition of electron decreases stability.

Which of the complex ion has least stability?

Which of the following ion has least stability?

How does the stability constant affect the stability of complex ions?

The larger the value of the stability constant, the further the reaction lies to the right. That implies that complex ions with large stability constants are more stable than ones with smaller ones. Stability constants tend to be very large numbers.

What is the stability constant of chelates?

Chelates are much more stable than complex ions formed from simple monodentate ligands. The overall stability constants for the two ions are: ion log K [Cu (NH 3) 2 (H 2 O) 4] 2+ 7.86 [Cu (H 2 O) 4 (en)] 2+ 10.6 The reaction with the 1,2-diaminoethane could eventually go on to produce a complex ion [Cu (en) 3] 2+.

What is the overall stability constant of [Cu (NH3) 2 (H2O) 4?

The overall stability constants for the two ions are: ion log K [Cu(NH3)2(H2O)4]2+ 7.86 [Cu(H2O)4(en)]2+

Do ions get more stable as they replace more water molecules?

The ions keep on getting more stable as you replace up to 4 water molecules, but notice that the equilibrium constants are gradually getting less big as you replace more and more waters. This is common with individual stability constants. Overall stability constants