The 18 Electron Rule for Transition Metal Complexes

The video tutorial explains the 18 electron rule for transition metal complexes, comparing it to the octet rule. It provides a step-by-step algorithm for determining electron counts in complexes, using examples with iron and tungsten. The tutorial also discusses exceptions to the rule, such as square planar complexes, and emphasizes the importance of understanding ligand charges and electron contributions.

How does the presence of polydentate ligands affect the electron count in a complex?

Discuss the importance of knowing the charges on ligands when applying the 18 electron rule.

What are some exceptions to the 18 electron rule, particularly regarding square planar complexes?

What is the expected electron count for a stable square planar complex?