Which is the most stable complex?

Which is the most stable complex?

Among the given complexes, in [ N i ( C N ) 4 ] 3 − , the charge of central metal ion is highest, ie, +1 while CO is the strongest field ligand. Hence, [ F e ( C O ) 5 ] is the most stable complex among the given complexes.

Which of the following spectrochemical series is true?

Thus, the correct order of ligands according to spectrochemical series is option A. Note: We need to remember that the spectrochemical series are defined for metals and ligands both. Ligands that have occupied p orbitals are potentially pi-donors.

Which of the following is correct order of spectrochemical series?

Cl−

Which Ligand has higher position in spectrochemical series?

The electronegative O atom is strongly electron-withdrawing, so there is poor orbital overlap between the electron pair on O and a metal d-orbital. The more electropositive C atom in the strong field ligand CN- allows better orbital overlap and sharing of the electron pair.

Which is the weak ligand in spectrochemical series?

Spectrochemical series of ligands Ligands arranged on the left end of this spectrochemical series are generally regarded as weaker ligands and cannot cause forcible pairing of electrons within the 3d level, and thus form outer orbital octahedral complexes that are high spin.

Is oh a weak field ligand?

Weak field ligands: I- , Br- , SCN- , Cl- , F- , OH- , NO2- , H2O. These ligands doesn’t help in the pairing of unpaired electrons. These ligands help in pairing of the electrons.

Is F weak ligand?

F−,I−,Cl− and H2​O are weak ligands, whereas OH−, NH3​, CH3​COO−, en and CN− are strong lignads.

Is CN a strong ligand?

Cyanide ion is strong field ligand because it is a pseudohalide ion. Pseudohalide ions are stronger coordinating ligand & they have the ability to form σ bond (from the pseudohalide to the metal) and π bond (from the metal to pseudohalide).

Which is most strong ligand?

According to this series CO is the strongest ligand among the following because carbon is donor in this, it has double bond (C=O) and is positively charged. Note: The strength of any ligand is determined by the amount of crystal field energy (CFT).