COMPLEX COMPOUNDS OF GERMANIUM (IV) ON BASIS OF 1-HYDROXYETHYLENEDIPHOSPHONIC ACID AND THEIR APPLICATION

• Main Authors: I. I. Seifullina, E. E. Martsinko, O. S. Kryzhanovskaya, T. V. Lozhichevskaya, S. N. Savin
• Format: Article
• Language: English
• Published: Odessa I. I. Mechnikov National University 2015-02-01
• Series: Vìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ
• Subjects: діоксид германію, 1-гiдроксiетилiдендифосфонова кислота, координаційні сполуки, екзо-ліганди, поліконденсація
• Online Access: http://heraldchem.onu.edu.ua/article/view/37985

The row of coordination compounds of germanium (IV) with 1-hydroxyethylene- diphosphonic acid H4Oedph is synthesized: complex acid (I) and its complexes with exo-ligands (L): hydrazide of isonicotinic acid Ind (II), diphenylguanidine Dphg (III), pyracitam Pam (IV), imidazole Im (V) and citozine Ctz (VI). Complexes are studied by the methods of chemical and X-ray powder diffraction analysis, thermo­gravimetry and IR-spectrometry. The structure of the synthesized complexes is set by the comparative analysis of the results of research of compounds I-VI and before structurally characterized 1-hydroxyethylenediphosphonategermanate of nicotinic acid Nic (VII). Catalytic activity of Ge02, H4Oedph and complex I in reaction of polycondensation of maleinic anhydride with ethyleneglycol is studied.