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Shulyak AT, Bortnikov EO, Kubasov AS, Selivanov NA, Lipengolts AA, Zhdanov AP, Bykov AY, Zhizhin KY, Kuznetsov NT. Synthesis of Hafnium(IV) Polyaminoacetates. Molecules 2021; 26:molecules26123725. [PMID: 34207280 PMCID: PMC8234123 DOI: 10.3390/molecules26123725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 06/08/2021] [Accepted: 06/12/2021] [Indexed: 11/16/2022] Open
Abstract
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.
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Affiliation(s)
- Alexandra T. Shulyak
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskiy pr. 31, 119991 Moscow, Russia; (A.S.K.); (N.A.S.); (A.P.Z.); (A.Y.B.); (K.Y.Z.); (N.T.K.)
- Inorganic Chemistry Department, Lomonosov Institute of Fine Chemical Technologies, MIREA-Russian Technological University, pr. Vernadskogo, 86, 119454 Moscow, Russia
- Correspondence: ; Tel.: +7-(916)-823-01-57
| | - 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; (A.S.K.); (N.A.S.); (A.P.Z.); (A.Y.B.); (K.Y.Z.); (N.T.K.)
| | - Nikita A. Selivanov
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskiy pr. 31, 119991 Moscow, Russia; (A.S.K.); (N.A.S.); (A.P.Z.); (A.Y.B.); (K.Y.Z.); (N.T.K.)
| | - 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; (A.S.K.); (N.A.S.); (A.P.Z.); (A.Y.B.); (K.Y.Z.); (N.T.K.)
| | - Alexander Yu. Bykov
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskiy pr. 31, 119991 Moscow, Russia; (A.S.K.); (N.A.S.); (A.P.Z.); (A.Y.B.); (K.Y.Z.); (N.T.K.)
| | - Konstantin Yu. Zhizhin
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskiy pr. 31, 119991 Moscow, Russia; (A.S.K.); (N.A.S.); (A.P.Z.); (A.Y.B.); (K.Y.Z.); (N.T.K.)
| | - Nikolai T. Kuznetsov
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskiy pr. 31, 119991 Moscow, Russia; (A.S.K.); (N.A.S.); (A.P.Z.); (A.Y.B.); (K.Y.Z.); (N.T.K.)
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Das SK, Saha SK. Study of hafnium complexes by time differential perturbed angular correlation technique. RADIOCHIM ACTA 2009. [DOI: 10.1524/ract.91.12.769.23421] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Abstract
Complexation of hafnium with two ligands viz. diethylene triamine pentaacetic acid (DTPA) and its dimethyl ester derivative (DMDTPA) has been studied by using time differential perturbed angular correlation (TDPAC) technique. Nuclear quadrupole coupling constant (ν
Q), asymmetry of the EFG (η) and the frequency distribution (δ) for these complexes have been obtained. Square antiprism structures have been suggested for these complexes using these parameters. A systematic trend of the ν
Q has been observed in these and other hafnium complexes with similar ligands and has been explained in terms of the electronegativity of the donor atoms in the ligands.
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