RAMAN EFFECT IN BINARY LIQUID MIXTURES THE SYSTEM PYRIDINE - ACETIC ACID

Abstract

The effect of concentration on the Raman spectrum of a mixture of pyridine and acetic acid has been investigated over a wide range of concentrations. The 990-1,029 doublet of pyridine exhibits a conspicuous variation in intensity and structure. For a mixture containing 30 mol. % acid a new line appears at 1,006 cm. -' and is of maximum intensity for 80 mol. % acid. Some other minor changes are also reported. The obsetved changes indicate the formation of a complex with the formula 4CH3COOH -C6-H6N.