Infrared spectra of salicylaldehyde complexes of some alkali metals

Abstract

The alkali metal chelates of salicylaldehyde have been prepared and their infrared spectra obtained. The spectra indicate strong bonding between the metal and hydroxy oxygen and only weak co-ordination of the metal to the carbonyl oxygen. For the lithium complexes two M-O stretching frequencies have been observed at about 590 cm.^-1 and 490 cm.^-1 The infrared spectra of the complexes have also given indirect evidence towards assignment of the C-OH and aldehydic C-H stretching frequencies.