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Understanding Metal Complex Equilibria and the Chelate Effect

Dive into the world of metal complex equilibria and the chelate effect. Learn about monodentate and bidentate ligands, chelate complexes, and the Gibbs-Helmholtz equation. Explore the philosophy of conditional constants in equilibrium constants.

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Understanding Metal Complex Equilibria and the Chelate Effect

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  1. Complex Equilibria

  2. Metal Complex Monodentate ligands, e.g., NH3 and Cl- 3+ 2-

  3. Bidentate ligands: Chelate complexes (greek. χηλή (chēle): engl: crab, pol: kleszcze, szczypce kraba)

  4. Polydentate ligands Chelate complexes (greek. χηλή (chēle): engl: crab, pol: kleszcze, szczypce kraba)

  5. Metal-EDTA Complex

  6. Chelate Complexes

  7. The chelate effect

  8. The chelate effect

  9. The chelate effect • Increase of diorder • Increase of entropy S

  10. The chelate effect • Increase of diorder • Increase of entropy S Gibbs-Helmholtz Equation

  11. Chelate effect Ni

  12. EDTA-Komplexe

  13. The philosophy of conditional constants: Give equilibrium constants for cases deviating from the standard conditions for which the equilibrium constant of a single equilibrium is defined, i.e., give equilibrium constants for “complex conditions”

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