Ionization constants and ionization profiles

David Thomas Manallack; John E A Comer

doi:10.1016/B978-0-12-409547-2.11233-8

Ionization constants and ionization profiles

David Thomas Manallack, John E A Comer

Medicinal Chemistry

Research output: Chapter in Book/Report/Conference proceeding › Chapter (Book) › Other

Abstract

Most drug molecules are ionizable in aqueous solutions. Ionization occurs when the molecules acquire or lose hydrogen ions in response to changes in the pH of the solution. This chapter reviews the theory of solution equilibria, which explains the behavior of ionizable molecules in solution, and describes the structural features of organic molecules that cause them to become ionized. It then discusses the importance of drug ionization, before moving on to consider the measurement of ionization constants, and techniques for predicting them by studying molecular structure.

Original language	English
Title of host publication	Reference Module in Chemistry, Molecular Sciences and Chemical Engineering
Editors	Jan Reedijk
Place of Publication	New York NY USA
Publisher	Elsevier
Pages	1 - 41
Number of pages	41
ISBN (Print)	9780124095472
DOIs	https://doi.org/10.1016/B978-0-12-409547-2.11233-8
Publication status	Published - 2014

Access to Document

10.1016/B978-0-12-409547-2.11233-8

Cite this

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title = "Ionization constants and ionization profiles",

abstract = "Most drug molecules are ionizable in aqueous solutions. Ionization occurs when the molecules acquire or lose hydrogen ions in response to changes in the pH of the solution. This chapter reviews the theory of solution equilibria, which explains the behavior of ionizable molecules in solution, and describes the structural features of organic molecules that cause them to become ionized. It then discusses the importance of drug ionization, before moving on to consider the measurement of ionization constants, and techniques for predicting them by studying molecular structure.",

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AB - Most drug molecules are ionizable in aqueous solutions. Ionization occurs when the molecules acquire or lose hydrogen ions in response to changes in the pH of the solution. This chapter reviews the theory of solution equilibria, which explains the behavior of ionizable molecules in solution, and describes the structural features of organic molecules that cause them to become ionized. It then discusses the importance of drug ionization, before moving on to consider the measurement of ionization constants, and techniques for predicting them by studying molecular structure.

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DO - 10.1016/B978-0-12-409547-2.11233-8

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BT - Reference Module in Chemistry, Molecular Sciences and Chemical Engineering

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