STRUCTURE OF DYSPROSIUM MONOTARTRATE IN AQUEOUS-SOLUTION FROM MAGNETIC DOUBLE-REFRACTION AND MOLECULAR MECHANICS DATA

pH-Metering and magnetic double fraction are used to determine the mol ar constant of magnetic double refraction of dysprosium monotartrate D yH2L+ (H4L is tartaric acid). A molecular mechanics technique (Dashevs kii-Plyamovaryl model) was used to model the structure of the ligand a nd hydrate surroundings of dysprosium(III) in DyH2L+. Theoretical mola r constants of magnetic double refraction calculated from the molecula r mechanics data (CONKERR program) were compared with the experimental values; the most probable models of the surroundings of the dysprosiu m(III) are established.