Lewis Basicity and Affinity Scales: Data and Measurement

1 Lewis Basicity and Affinity Measurement: Definitions and Context.

1.1 The Brönsted Definition of Acids and Bases.

1.2 Scales of Brönsted Basicity and Affinity in Solution.

1.3 Scales of Brönsted Basicity and Affinity in the Gas Phase.

1.4 The Lewis Definition of Acids and Bases.

1.5 Quantum Chemical Descriptions of Lewis Acid/Base Complexes.

1.6 Measurement of Lewis Basicity.

1.7 Measurement of Lewis Affinity.

1.8 The Role of the Solvent.

1.9 Spectroscopic Scales of Basicity (Affinity).

1.10 Polybasic Compounds.

1.11 Attempts at a Quantitative Formulation of the Lewis Definition of Acids and Bases.

1.12 Concluding Remarks and Content of Chapters 2–7.

References.

2 The Donor Number or SbCl5 Affinity Scale.

2.1 Structure of SbCl5 Complexes.

2.2 Definition of the Donor Number Scale.

2.3 Experimental Determination of the Donor Number.

2.4 The Donor Number Scale: Data.

2.5 Critical Discussion.

References.

3 TheBF₃ Affinity Scale.

3.1 Structure of BF₃ Complexes.

3.2 Definition of the BF₃ Affinity Scale.

3.3 Experimental Determination of the BF₃ Affinity Scale.

3.4 The BF3 Affinity Scale: Data.

3.5 Discussion.

3.6 Conclusion.

References.

4 Thermodynamic and Spectroscopic Scales of Hydrogen-Bond Basicity and Affinity.

4.1 Structure of Hydrogen-Bonded Complexes.

4.2 Hydrogen-Bond Basicity Scales: Early Works.

4.3 The 4-Fluorophenol Hydrogen-Bond Basicity Scale.

4.4 Hydrogen-Bond Affinity Scales: Early Studies.

4.5 The 4-Fluorophenol Affinity Scale.

4.6 Comparison of 4-Fluorophenol Affinity and Basicity Scales.

4.7 Spectroscopic Scales.

4.8 Conclusion.

References.

5 Thermodynamic and Spectroscopic Scales of Halogen-Bond Basicity and Affinity.

5.1 Structure of Halogen-Bonded Complexes.

5.2 The Diiodine Basicity Scale.

5.3 Is the Diiodine Basicity Scale a General Halogen-Bond Basicity Scale?.

5.4 The Diiodine Affinity Scale.

5.5 Spectroscopic Scales.

5.6 Conclusion.

References.

6 Gas-Phase Cation Affinity and Basicity Scales.

6.1 Cations as Lewis Acids in the Gas Phase.

6.2 Structure of Cation/Molecule Adducts.

6.3 Experimental Techniques for Measuring Gas-Phase Cation Affinities and Basicities.

6.4 Ion Thermochemistry Conventions.

6.5 Lithium, Sodium, Potassium, Aluminium, Manganese, Cyclopentadienylnickel, Copper and Methylammonium Cations Affinity and Basicity Scales.

6.6 Significance and Comparison of Gas-Phase Cation Scales.

References.

7 The Measurement of Lewis Basicity and Affinity in the Laboratory.

7.1 Calorimetric Determination of the BF₃ Affinity of Pyridine by Gas/Liquid Reaction.

7.2 Calorimetric Determination of the BF₃ Affinity of Pyridine by Liquid/Liquid Reaction.

7.3 Determination by FTIR Spectrometry of the Complexation Constants of 4-Fluorophenol with Isopropyl Methyl Ketone and Progesterone.

7.4 Determination by FTIR Spectrometry of the Complexation Enthalpy and Entropy of 4-Fluorophenol with Cyclopropylamine.

7.5 FTIR Determination of the OH Shift of Methanol Hydrogen Bonded to Pyridine, Mesitylene and N-Methylmorpholine.

7.6 Solvatochromic Shifts of 4-Nitrophenol upon Hydrogen Bonding to Nitriles.

7.7 Determination of the Complexation Constant of Diiodine with Iodocyclohexane by Visible Spectrometry.

7.8 Determination of the Complexation Enthalpy and Entropy of Diiodine with Dimethyl Sulfoxide by Visible Spectrometry.

7.9 FTIR Determination of the Shift of the I C Stretching of Iodine Cyanide upon Halogen Bonding to Phosphine Chalcogenides.

7.10 Blue Shift of the Visible Diiodine Transition Upon Halogen Bonding to Pyridines.

7.11 Mass Spectrometric Determination of the Gas-Phase Lithium Cation Basicity of Dimethyl Sulfoxide and Methyl Phenyl Sulfoxide by the Kinetic Method.

References.

Index.