Protonics II: Physiological Ionization and pKa prediction

3/20/01


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Table of Contents

Protonics II: Physiological Ionization and pKa prediction

Introduction

Example: Thiocarboxylic acids

Non-Tautomeric Example

Tautomerism and Docking

Chemistry 101: Acids and Bases

Aspirin (Acetyl Salicylic Acid)

Physiological Ionization

Factors influencing pKa

Method #1: Atom Typing

pKa Prediction Benchmark

Method #2: Pattern Matching

Method #3: Hammett and Taft

Hammett and Taft Example

The Missing Parameter Problem

Method #4: PB Electrostatics

Conclusions

Bibliography

Author: Roger Sayle