19.3Coordination Chemistry of Transition Metals
Section · module m68843
What this needs
Learn these first — this section will not make sense without them.
Nothing in the algebra book is a prerequisite for this section.
What this touches
Algebra that turns up here. Not a blocker, but this is where you will see it used.
Finding a metal's oxidation state inside a complex ion, e.g. solving −2 = −6 + x for platinum in [PtCl₆]²⁻, is isolating a single unknown in a one-step linear equation; the recurring error is forgetting that the ligand charges (here −6 from six Cl⁻) must be summed on one side before x is isolated.
- Applies9.6Counting Principles
Enumerating the geometric, optical, linkage, and ionization isomers of one complex — e.g. the three isomeric forms of [Co(en)₂Cl₂]⁺: trans, and a cis enantiomer pair — is a small, hand-drawn counting problem; systematically listing arrangements without double-counting a mirror-image pair is exactly what counting principles formalizes for cases too large to sketch.