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Zapolotsky EN, Babailov SP, Fomin ES. STUDY OF THE STRUCTURE AND PARAMAGNETIC PROPERTIES OF THE [Dy(H2O)n(CyDTA)]– COMPLEX IN AN AQUEOUS SOLUTION USING NMR DATA. J STRUCT CHEM+ 2022. [DOI: 10.1134/s0022476622110142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Zapolotsky EN, Babailov SP. Conformational Dynamics and Thermosensory Properties of [Ln(H2O)n(EDTA)]– (Ln = Pr, Eu, Tb, Ho, Er, Tm) Complexes in Aqueous Solutions According to NMR Data. RUSS J INORG CHEM+ 2022. [DOI: 10.1134/s0036023622601064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Selyutina OY, Koshman VE, Zelikman MV, Babailov SP. Holmium complex with phospholipids as 1H NMR temperature probe for membrane systems. Biometals 2022; 35:629-637. [PMID: 35325368 DOI: 10.1007/s10534-022-00388-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 03/07/2022] [Indexed: 11/02/2022]
Abstract
The temperature dependence of the lanthanide-induced chemical shifts (LISs) was studied for the systems containing 1-palmitoyl-2-oleoylphosphatidylcholine (POPC)-Ho, 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC)-Ho and 1,2-dimyristoyl-sn-glycero-3-phosphorylcholine (DMPC)-Ho in unilamellar liposomes. In the POPC-Ho system, anti-Curie dependence of LISs is observed, same as previously observed in POPC-Pr system. In the DPPC- and DMPC-Ho systems, temperature features are observed which are probably connected with phase transition.
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Affiliation(s)
- O Yu Selyutina
- Institute of Chemical Kinetics and Combustion, Institutskaya St., 3, Novosibirsk, Russia, 630090.
| | - V E Koshman
- Institute of Chemical Kinetics and Combustion, Institutskaya St., 3, Novosibirsk, Russia, 630090
| | - M V Zelikman
- Institute of Solid-State Chemistry and Mechanochemistry, Kutateladze St., 18, Novosibirsk, Russia, 630128
| | - S P Babailov
- A.V. Nikolaev Institute of Inorganic Chemistry, The Siberian Branch of the Russian Academy of Sciences, Av. Lavrentyev 3, Novosibirsk, Russia, 630090
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Zapolotsky EN, Qu Y, Babailov SP. Lanthanide complexes with polyaminopolycarboxylates as prospective NMR/MRI diagnostic probes: peculiarities of molecular structure, dynamics and paramagnetic properties. J INCL PHENOM MACRO 2021; 102:1-33. [PMID: 34785985 PMCID: PMC8582344 DOI: 10.1007/s10847-021-01112-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 10/05/2021] [Indexed: 11/29/2022]
Abstract
The paramagnetic lanthanide complexes with polyaminopolycarboxylate (PAPC) ligands attract considerable attention from the standpoint of potential applications thereof as relaxation agents used in medical magnetic resonance imaging (MRI) and in luminescent materials, as well as owing to promising use thereof as paramagnetic labels for studying the properties of biopolymers since they exhibit thermodynamic stability, good solubility in aqueous media and moderate toxicity. For the last decades, the NMR methods have been used to determine the physical and chemical properties of paramagnetic Ln compounds. The studies concerning paramagnetic NMR lanthanide-induced shifts (LISs) in dissolved Ln complexes, as well as the analysis of band shape as a function of temperature make it possible to obtain valuable information on the structure, intra- and intermolecular dynamics and paramagnetic properties thereof. This review is devoted solely to the following features: firstly, the processes of intramolecular dynamics of lanthanide complexes with polyamino-polycarboxylate ligands such as DOTA, EDTA and DTPA and their derivatives studied by NMR; secondly, the LISs of lanthanide complexes with EDTA, DOTA, DTPA and some of their derivatives depending on temperature and pH. Moreover, in this review, for the first time, the dependence of the activation energy of molecular dynamics in complexes with polydentate ligands on the atomic number of the lanthanide cation is analyzed and a monotonic change in energy is detected, which is due to the effect of lanthanide contraction. It should be noted that this phenomenon is quite general and may also appear in the future in many other series of lanthanide complexes with both other multidentate ligands and with bidentate and monodentate ligands. In the future, it is possible to predict the dependence of the properties of certain lanthanide complexes on the ionic radius of the lanthanide cation based on the approaches presented in the review. In this review, we have also presented the dynamic NMR as the main research method widely used to analyze the processes of molecular dynamics, and the structural studies based on the NMR relaxation spectroscopy and LIS analysis.
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Affiliation(s)
- Eugeny N. Zapolotsky
- A.V. Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, Av. Lavrentyev 3, Novosibirsk, Russia 630090
| | - Yanyang Qu
- Institute of Chemical Materials, CAEP, P. O. Box 919-311, Mianyang, 621900 Sichun China
| | - Sergey P. Babailov
- A.V. Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, Av. Lavrentyev 3, Novosibirsk, Russia 630090
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Zapolotsky EN, Babailov SP. Intermolecular dynamics and paramagnetic properties of Tm-Na heterometallic complex with macrocyclic ligand by 23Na dynamic NMR. J INCL PHENOM MACRO 2021. [DOI: 10.1007/s10847-021-01061-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Domestici C, Tensi L, Zaccaria F, Kissimina N, Valentini M, D'Amato R, Costantino F, Zuccaccia C, Macchioni A. Molecular and heterogenized dinuclear Ir-Cp* water oxidation catalysts bearing EDTA or EDTMP as bridging and anchoring ligands. Sci Bull (Beijing) 2020; 65:1614-1625. [PMID: 36659037 DOI: 10.1016/j.scib.2020.06.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Revised: 05/16/2020] [Accepted: 06/01/2020] [Indexed: 01/21/2023]
Abstract
The development of efficient water oxidation catalysts (WOCs) is of key importance in order to drive sustainable reductive processes aimed at producing renewable fuels. Herein, two novel dinuclear complexes, [(Cp*Ir)2(μ-κ3-O,N,O-H4-EDTMP)] (Ir-H4-EDTMP, H4-EDTMP4- = ethylenediamine tetra(methylene phosphonate)) and [(Cp*Ir)2(μ-κ3-O,N,O-EDTA)] (Ir-EDTA, EDTA4- = ethylenediaminetetraacetate), were synthesized and completely characterized in solution, by multinuclear and multidimensional NMR spectroscopy, and in the solid state, by single crystal X-Ray diffraction. They were supported onto rutile TiO2 nanocrystals obtaining Ir-H4-EDTMP@TiO2 and Ir-EDTA@TiO2 hybrid materials. Both molecular complexes and hybrid materials were found to be efficient catalysts for WO driven by NaIO4, providing almost quantitative yields, and TON values only limited by the amount of NaIO4 used. As for the molecular catalysts, Ir-H4-EDTMP (TOF up to 184 min-1) exhibited much higher activity than Ir-EDTA (TOF up to 19 min-1), likely owing to the higher propensity of the former to generate a coordination vacancy through the dissociation of a Ir-OP bond (2.123 Å, significantly longer than Ir-OC, 2.0913 Å), which is a necessary step to activate these saturated complexes. Ir-H4-EDTMP@TiO2 (up to 33 min-1) and Ir-EDTA@TiO2 (up to 41 min-1) hybrid materials showed similar activity that was only marginally reduced in the second and third catalytic runs carried out after having separated the supernatant, which did not show any sign of activity, instead. The observed TOF values for hybrid materials are higher than those reported for analogous systems deriving from heterogenized mononuclear complexes. This suggests that supporting dinuclear molecular precursors could be a successful strategy to obtain efficient heterogenized water oxidation catalysts.
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Affiliation(s)
- Chiara Domestici
- Department of Chemistry, Biology and Biotechnology, University of Perugia and CIRCC, Perugia 06123, Italy
| | - Leonardo Tensi
- Department of Chemistry, Biology and Biotechnology, University of Perugia and CIRCC, Perugia 06123, Italy
| | - Francesco Zaccaria
- Department of Chemistry, Biology and Biotechnology, University of Perugia and CIRCC, Perugia 06123, Italy.
| | - Nade Kissimina
- Department of Chemistry, Biology and Biotechnology, University of Perugia and CIRCC, Perugia 06123, Italy; École Supérieure d'Ingénieurs de Rennes, University of Rennes 1, Rennes 35042, France
| | | | - Roberto D'Amato
- Department of Chemistry, Biology and Biotechnology, University of Perugia and CIRCC, Perugia 06123, Italy
| | - Ferdinando Costantino
- Department of Chemistry, Biology and Biotechnology, University of Perugia and CIRCC, Perugia 06123, Italy.
| | - Cristiano Zuccaccia
- Department of Chemistry, Biology and Biotechnology, University of Perugia and CIRCC, Perugia 06123, Italy.
| | - Alceo Macchioni
- Department of Chemistry, Biology and Biotechnology, University of Perugia and CIRCC, Perugia 06123, Italy.
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Selyutina OY, Kononova PA, Babailov SP. Complex of praseodymium with lipid as a NMR temperature sensor and probe of liposome states. NEW J CHEM 2020. [DOI: 10.1039/d0nj03707a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The goal of the research was to show the limits within which Pr3+ can be used as a linear response probe.
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Affiliation(s)
| | - P. A. Kononova
- Institute of Chemical Kinetics and Combustion
- Novosibirsk
- Russia
| | - S. P. Babailov
- A. V. Nikolaev Institute of Inorganic Chemistry
- The Siberian Branch of the Russian Academy of Sciences
- Novosibirsk
- Russian Federation
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Mahmoud MR, Soliman MA, Rashad GM. Competitive foam separation of rare earth elements from aqueous solutions using a cationic collector. SEP SCI TECHNOL 2019. [DOI: 10.1080/01496395.2018.1546740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Mamdoh R. Mahmoud
- Nuclear Chemistry Department, Hot Laboratories Center, Atomic Energy Authority, Cairo, Egypt
| | | | - Ghada M. Rashad
- Nuclear Chemistry Department, Hot Laboratories Center, Atomic Energy Authority, Cairo, Egypt
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