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Chemistry 142 Chapter 24: Transition Metals and Coordination Compounds

Chemistry 142 Chapter 24: Transition Metals and Coordination Compounds . Outline Properties of Transition Metals Coordination Compounds Structure and Isomers Nomenclature Bonding Applications. Properties. Expanded Periodic Table. Melting Point. Density. Atomic Size. Ionization Energy.

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Chemistry 142 Chapter 24: Transition Metals and Coordination Compounds

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  1. Chemistry 142Chapter 24:Transition Metals and Coordination Compounds Outline Properties of Transition Metals Coordination Compounds Structure and Isomers Nomenclature Bonding Applications

  2. Properties

  3. Expanded Periodic Table

  4. Melting Point Density

  5. Atomic Size Tro, Chemistry: A Molecular Approach

  6. Ionization Energy Tro, Chemistry: A Molecular Approach

  7. Electronegativity Tro, Chemistry: A Molecular Approach

  8. Oxidation States Tro, Chemistry: A Molecular Approach

  9. Oxidation States of Mn Mn2+ (aq), Mn(OH)3 (s), MnO2 (s), MnO42–(aq), MnO4 – (aq)

  10. Relative Reducing Abilities of First Row Transition Metals in Aqueous Solution reducing ability

  11. Lanthanide Contraction

  12. Complex Ion

  13. Coordination Compound Tro, Chemistry: A Molecular Approach

  14. Geometries in Complex Ions Tro, Chemistry: A Molecular Approach

  15. Ligands

  16. Chelates [Co(en)3]3+ [Co(EDTA)]-

  17. Complex Ions with Polydentate Ligands Tro, Chemistry: A Molecular Approach

  18. Linkage Isomers Tro, Chemistry: A Molecular Approach

  19. Geometric Isomers: Cis-TransSquare Planar Complex[Pt(NH3)2Cl2] diamminedichloroplatinum(II)

  20. Geometric Isomers: Cis-Trans Octahedral Complexes[Co(NH3)4Cl2]Cl

  21. Geometric Isomers: Cis-TransOctahedral Complex[Co(NH3)4Cl2]+tetraamminedichlorocobalt(II)

  22. Geometric Isomers: Mer-FacOctahedral Complex[Co(NH3)3Cl3] triamminetrichlorocobalt(II)

  23. Structure of Coordination Compounds 22.4

  24. Structures of [Co(en)3]3+ and [Co(NH3)6]3+

  25. Valence Bond Theory

  26. Tro, Chemistry: A Molecular Approach

  27. Color & Electrons

  28. Strong and Weak Field Splitting Tro, Chemistry: A Molecular Approach

  29. Crystal Field Theory

  30. Example – Coordination Chemistry • Compare the strong field case of hexaamminecobalt(III) ion to the weak field case of hexafluorocobaltate(III) ion. • What is the oxidation state of each cobalt? • What do the orbital diagrams look like? • Are they high spin, low spin or neither? • What are the hybridized orbitals?

  31. Example – Coordination Chemistry • The hexacyanoferrate(III) ion is known to have one unpaired electron. Does the cyanide ion produce a strong or weak field?

  32. Example – Coordination Chemistry • Predict the number of unpaired electrons in the complex ion hexacyanochromate(II).

  33. Example – Coordination Chemistry • The complex ion hexaaquatitanium(III) absorbs light of wavelength 510 nm and has a reddish-violet color. What is the ligand field splitting in the complex?

  34. Crystal Field TheoryTetrahedral and Square Planar Complexes

  35. Example – Coordination Chemistry • One method for refining cobalt involves the formation of the complex ion tetrachlorocobaltate(II). This anion is tetrahedral. Is this complex paramagnetic or diamagnetic?

  36. Example – Coordination Chemistry • Why is it that the tetracyanonickelate(II) ion is diamagnetic, but the tetrachloronickelate(II) ion is paramagnetic?

  37. chlorophyll Applications of Coordination Compounds • porphyrin porphryin Tro, Chemistry: A Molecular Approach

  38. Applications of Coordination Compounds carbonic anhydrase cisplatin anticancer drug Tro, Chemistry: A Molecular Approach

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