Fundamental Coordination Ability of s-Block Metal Ions

Part A: Chemical interaction above electrostatic force between s-block metals and ligand ions

1. Host-Guest Chemistry of s-Block Metal Ions (History background of coordination chemistry of s-block metals is reviewed)

2. Lighter Metal Coordination Polymers (Recent aspects are described on the role of coordination of s-block metals in polymer)

3. Voltammetric Studies on Chemical Interactions of Alkali Metal Ions with Acetate and Benzoate Ions in Acetonitrile (Specific interaction between carboxylate and alkali metal ions in solution is proposed. The formation of unique species of MA2- and M2A+ has been discovered by means of voltammetry) 4. Elucidation of Salt Effects on the Indicator Acidity in Acetonitrile (The influence of s-block metal ions on the indicator acidity is found, which is based on the chemical interaction between the metal cations and acid anions)

5. Direct Chelate Formation between Alkaline Earth Metal Ions and 1-(2-Pyridylazo)-2-naphthol and Related Reactions in Acetonitrile (Distinct chelate formation of alkaline earth metals with normal ligands is discovered)

6. Higher Ion-Aggregates in Low Permittivity Media (In low permittivity media (er < 10), higher ion-aggregates are properly evaluated by conductometry)

7. Conductivity and Spectroscopic Studies of Ion Aggregates in Higher Permittivity Media (Even in higher permittivity media (20 < er < 65), the formation of higher ion-aggregates is proved)

Part B: Coordination phenomena of s-block metal ions in aprotic and protic solvents

8. UV-Visible and 1H or 13C NMR Spectroscopic Studies on the Specific Interaction between Lithium and Tropolonate Ions in Acetonitrile or Other Solvents (Coordination phenomena between lithium and tropolone ions are demonstrated by spectroscopy)

9. UV–visible, 1H and 13C NMR Spectroscopic Studies on the Interaction between Protons or Alkaline Earth Metal Ions and the Benzoate Ion in Acetonitrile (The chemical reactions between alkaline earth metal ions and the benzoate ion are proved)

10. Precipitation and Re-Dissolution of s-Block Metal Salts Based on Coordination and “Reverse Coordination” with Aromatic Dicarboxylate, Sulfonate, or Disulfonate ions in Acetonitrile (Coordination and “reverse coordination” phenomena for alkali metal and alkaline earth metal ions are demonstrated by the precipitation and re-dissolution of formed salts in acetonitrile)

11. Coordination Phenomena of Alkaline Earth Metal Ions with Mono-, Di-, and Trisulfonates in Alcohols and Binary Solvents (In protic solvents, coordination phenomena of alkaline earth metal ions with mono-, di-, and trisulfonates are demonstrated)

12. Complexing Ability of Alkali Metal and Alkaline Earth Metal Ions with Organic Phosphinate and Phosphates (Very strong complexing reactions of s-block metals are displayed for organic phosphates)

13. Chemical Interaction between Alkaline Earth Metal Ions and the Benzoate or 2,6-Naphthalenedicarboxylate Ion in Acetonitrile and Alcohols (In both aprotic and protic solvents, alkaline earth metal ions have chemical interaction with mono- and dicarboxylates)

14.Coordination Phenomena of Alkali Metal, Alkaline Earth Metal, and Indium Ions with the 1,3,6-Naphthalenetrisulfonate Ion in Protic and Aprotic Solvents (In protic and aprotic solvents, coordination phenomena of s-block metal ions (M+, M2+, M3+) are examined for trisulfonate ion (3-))

Part C: Application of the coordination ability of s-block metals and related reactions in solution

15. 1H and 13C NMR Detection of the Carbocations or Zwitterions from Fluoran Leuco Dyes or Trityl Chlorides on the Addition of s-Block Metal Ions (The color of practical fluoran leuco dyes are developed by the addition of s-block metal ions)

16. Alternative Mechanism of SN1 Solvolysis Based on the Direct Chemical Interaction between s-Block Metal Cations and Released Anions (The alternative mechanism of organic SN1 substrate solvolyses is proposed based on the direct chemical interaction between s-block metal cations and released anions)

17. Discovery of Enhanced Oxidation Mechanism of Dilute Nitric Acid and Pure Gold Dissolution in Seawater (Strong oxidation ability of dilute nitric acid is discovered and applied to the dissolution of pure gold in seawater)

18. Pure Gold Dissolution by the Oxidation Ability of Dilute Nitric and Nitrous Acids in the Presence of Abundant Metal Salts (In the presence of metal halides, gold dissolution is performed in dilute nitric and nitrous acids)

19. Pure Gold and Stainless-Steel Dissolution or Corrosion in Dilute Haloic Acids (HXO3, X = Cl, Br, I) Solution containing Abundant Halide Ions (Dilute haloic acids with halide salts are applied to gold and stainless-steel dissolution or corrosion. The mechanism of the alternation of a strong acid into the weak acid is elucidated)