Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskiy pr. 31, 119991 Moscow, Russia
Evgeniy O. Bortnikov
Organic Chemistry Department, Weizmann Institute of Science, 234 Herzl Street, Rehovot 7610001, Israel
Alexey S. Kubasov
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskiy pr. 31, 119991 Moscow, Russia
Nikita A. Selivanov
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskiy pr. 31, 119991 Moscow, Russia
Alexey A. Lipengolts
N.N. Blokhin National Medical Research Center of Oncology, Federal State Budgetary Institution, Ministry of Health of the Russian Federation (N.N. Blokhin NMRCO), Kashirskoye Shosse 24, 115478 Moscow, Russia
Andrey P. Zhdanov
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskiy pr. 31, 119991 Moscow, Russia
Alexander Yu. Bykov
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskiy pr. 31, 119991 Moscow, Russia
Konstantin Yu. Zhizhin
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskiy pr. 31, 119991 Moscow, Russia
Nikolai T. Kuznetsov
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskiy pr. 31, 119991 Moscow, Russia
The interaction of hafnium(IV) salts (oxide-dichloride, chloride, and bromide) with nitrilotriacetic acid (NTA), diethylenetriamminepentaacetic acid (DTPA), 1,2-diaminocyclohexanetetraacetic acid (CDTA), 1,3-dipropylmino-2-hydroxy N,N,N′,N′-tetraacetic acid (dpta), and N-(2-hydroxyethyl)ethylenediamine triacetic acid (HEDTA) has been studied. The corresponding complexes Na2[Hf(NTA)2]·3H2O (1), Na[HfDTPA]·3H2O (2), [HfCDTA(H2O)2] (3), and Na[Hf2(dpta)2]·7.5H2O·0.5C2H5OH (4) have been isolated and characterized and their structures have been determined by single crystal X-ray diffraction. Biological studies of [HfCDTA(H2O)2] have shown that in 5% glucose solution this complex has low toxicity and good contrasting ability.
