L07 Chem 151 Lecture Notes - Lecture 10: Polyatomic Ion, Coordination Complex, Square Planar Molecular Geometry
23 Nov 2016
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If the ligand is a simple anion whose name typically ends with -ide, the -ide is changed to an -o. If the ligand is a polyatomic anion, whose name typically ends with -ite or -ate, the final -e is changed to -o. If the ligand is a neutral molecule, the common name of the molecule is used. = 4 tetrahedral or, less commonly, square planar: c. n. = 6 octahedral: many coordination compounds are water soluble and colorful due to the splitting of the d- orbitals of the central metal, common reactions of coordination complexes, complex formation, ligand substitutions. Experiment 8: synthesis of [co(nh3)6]cl3: cocl2, 6h2o crystals dissolve in water to form co(h2o)6. 2+ is a red, octahedral complex that is stable at low temperatures: addition of cl- ions results in cocl4. 2- blue tetrahedral complexes that are stable at high temperatures: cobalt (ii) complexes are labile.
