THE STUDY OF THE STRUCTURE OF SOLUTIONS OF THE H-COMPLEXES OF DIESTERS OF TETRACARBOXYLIC ACIDS WITH DIAMINES BY LIGHT-SCATTERING .3. CHARACTERISTICS OF THE HYPERMOLECULAR ORDER

The parameters of the hypermolecular orientation order in H-complexes of the dimethyl ester of 3,3',4,4 '-benzophenonetetracarboxylic acid w ith 1,6-hexamethylenediamine (BPE . HMDA) and 4,4 '-diaminodiphenylmet hane (BPE . DADPM) in methanol and aqueous methanol have been investig ated using the angular dependences of the isotropic and anisotropic co mponents of scattered light. The radii of the inertias of the fluctuat ion domains and the factors of the orientation order of their scatteri ng elements were determined. A model for the structure of the solution s of the complexes considered is presented. The experimental values of optical anisotropy have been compared with those calculated by the va lence-optical scheme. The inversion of the calculated and experimental values of optical anisotropy is explained by the nature of the bonds fixing the ester and diamines in both complexes.