Out of [Fc(CN)6]^4-,[Ni(CN)4]^2-, and [Ni(CO)4]: select the incorrect statement(s): (1) All have

step 1 Dear students, in problem 25 of chapter 6 we have asked that out of F E Cn 6 for negative and N

Out of [Fc(CN)6]^4-,[Ni(CN)4]^2-, and [Ni(CO)4]: select the...

Out of $\left[\mathrm{Fc}(\mathrm{CN})_{6}\right]^{4-},\left[\mathrm{Ni}(\mathrm{CN})_{4}\right]^{2-}$, and $\left[\mathrm{Ni}(\mathrm{CO})_{4}\right]:$ select the incorrect statement(s): (1) All have identical geometry (2) All are paramagnetic (3) All are diamagnetic (4) $\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{4}$ is diamagnetic but $\left[\mathrm{Ni}(\mathrm{CN})_{4}\right]^{2-}$ and $\left[\mathrm{Ni}(\mathrm{CO})_{4}\right]$ are paramagnetic

Out of $\left[\mathrm{Fc}(\mathrm{CN})_{6}\right]^{4-},\left[\mathrm{Ni}(\mathrm{CN})_{4}\right]^{2-}$, and $\left[\mathrm{Ni}(\mathrm{CO})_{4}\right]:$ select the incorrect statement(s):
(1) All have identical geometry
(2) All are paramagnetic
(3) All are diamagnetic
(4) $\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{4}$ is diamagnetic but $\left[\mathrm{Ni}(\mathrm{CN})_{4}\right]^{2-}$ and $\left[\mathrm{Ni}(\mathrm{CO})_{4}\right]$ are paramagnetic

Key Concepts

Ligand Field Theory

Ligand Field Theory explains how the approach of ligands causes a splitting of the metal ion's d orbitals into different energy levels. The size of this splitting depends on the geometry of the complex and the strength of the ligand field. This theory helps determine whether a complex will adopt a high-spin or low-spin configuration, which directly influences its magnetic properties.

Electronic Configuration and Metal–Ligand Bonding

This concept involves understanding the d electron count of the metal ion and the way ligands interact with these electrons. The electron configuration, influenced by the oxidation state and the bonding characteristics of the ligands (such as whether they are strong- or weak-field ligands), is key to predicting properties such as geometry and magnetism in coordination complexes.

Coordination Geometry

This concept deals with the spatial arrangement of ligands around the central metal ion in a complex. Coordination compounds can have various geometries, such as octahedral, square planar, and tetrahedral, each with its own distinct set of properties. Differences in geometry directly affect properties like reactivity, stability, and magnetism.

Magnetism in Coordination Complexes

Magnetism in coordination complexes is determined by the presence or absence of unpaired electrons. Complexes with unpaired electrons are paramagnetic, while those with all electrons paired are diamagnetic. The electron configuration of the metal center and the nature of the ligands underpin these magnetic behaviors.

Transcript

Please give Ace some feedback