THE STUDY OF HYDROGEN BONDING AND RELATED PHENOMENA BY ULTRAVIOLET LIGHT ABSORPTION: PART I. INTRODUCTION

Abstract

Hydrogen bonding, which is known to give rise to dimer formation in benzoic acids and similar compounds, may affect solution spectra by intermolecular and by intramolecular bond formation. Generally environmental factors affecting absorption spectra can be conveniently divided into three types: intermolecular hydrogen bonding between solute molecules only; intermolecular hydrogen bonding between solute and solvent molecules; and environmental effects not involving the formation of hydrogen bonds.Distinct evidence for these types of interaction is deduced from ultraviolet spectra, and various implications of the spectral analyses are discussed.