Infrared Spectra in the Characterization of Some Molecular Complexes of the Dative Type

Abstract

The infrared spectra of six diamine—quinone complexes and eight azine—quinone complexes were examined and compared with those of the component quinones and the semiquinone salts. The absence of the quinone but the presence of the semiquinone ion was proved in these complexes; therefore, the complexes may be characterized as essentially of the dative type. It is pointed out that most, if not all, of the known complexes having relatively low electrical resistivity are of this type.