Consider the following substitution reaction of the complex trans-[RuCl₂(bipy)₂]:

trans-[RuCl₂(bipy)₂](aq) + NO₂^–(aq) → trans-[RuCl(bipy)₂(NO₂)] + Cl^–(aq)

Predict the crystal field splitting diagram for the reactant trans-[RuCl₂(bipy)₂] given that Cl^– is a much more weaker-field ligand than bipyridine (bipy).

Ni²⁺ can form tetrahedral and square planar complexes having a formula of NiX₂L₂, where X is Br^– or CN^– and L is the monodentate ligand triphenylphosphine (PPh₃). Give the possible structures for each NiX₂L₂ complex and identify which will have a net dipole moment, considering that NiBr₂L₂ is paramagnetic and Ni(CN)₂L₂ is diamagnetic.

The crystal field energy-level diagram for a square pyramidal complex (ML₅) is known to be intermediate between an octahedral complex (ML₆) and a square planar complex (ML₄).

Does the crystal field energy-level diagram below correspond to a square pyramidal, ML₅, complex with one ligand along the ±z-axis, two along the ±x-axis, and two along the ±y-axis?

Cobalt complexes, characterized by the chemical formula CoX₂L₂, wherein X is Cl⁻ or N-bonded NCS⁻ and L is a monodentate triphenylphosphine ligand, can exhibit either a tetrahedral or square planar geometry. What are the crystal field energy-level diagrams that illustrate the distribution of electrons within the orbitals for a tetrahedral and square-planar CoX₂L₂ complex?