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Belov AS, Belova SA, Efimov NN, Zlobina VV, Novikov VV, Nelyubina YV, Zubavichus YV, Voloshin YZ, Pavlov AA. Synthesis, X-ray structure and magnetic properties of the apically functionalized monocapped cobalt(II) tris-pyridineoximates possessing SMM behaviour. Dalton Trans 2023; 52:2928-2932. [PMID: 36811361 DOI: 10.1039/d2dt04073e] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
The title cobalt(II) pseudoclathrochelate complexes possess an intermediate trigonal prismatic-trigonal antiprismatic geometry. As follows from PPMS data, they exhibit an SMM behaviour with Orbach relaxation barriers of approximately 90 K. Paramagnetic NMR experiments confirmed a persistence of these magnetic characteristics in solution. Therefore, a straightforward apical functionalization of this 3D molecular platform for its targeted delivery to a given biosystem can be performed without substantial changes.
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Affiliation(s)
- Alexander S Belov
- Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, 31 Leninsky pr., 119991 Moscow, Russia. .,Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences, 28-1 Vavilova st., 119334 Moscow, Russia
| | - Svetlana A Belova
- Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, 31 Leninsky pr., 119991 Moscow, Russia. .,Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences, 28-1 Vavilova st., 119334 Moscow, Russia
| | - Nikolay N Efimov
- Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, 31 Leninsky pr., 119991 Moscow, Russia.
| | - Veronika V Zlobina
- Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences, 28-1 Vavilova st., 119334 Moscow, Russia
| | - Valentin V Novikov
- Moscow Institute of Physics and Technology, National Research University, Institutsliy per. 9, Dolgoprudny, 141700 Moscow Region, Russia.,BMSTU Center of National Technological Initiative "Digital Material Science: New Material and Substances", Bauman Moscow State Technical University, 2nd Baumanskaya st. 5, 105005, Moscow, Russia
| | - Yulya V Nelyubina
- Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences, 28-1 Vavilova st., 119334 Moscow, Russia.,BMSTU Center of National Technological Initiative "Digital Material Science: New Material and Substances", Bauman Moscow State Technical University, 2nd Baumanskaya st. 5, 105005, Moscow, Russia
| | - Yan V Zubavichus
- Synchrotron Radiation Facility SKIF, G.K. Boreskov Institute of Catalysis of the Siberian Branch of the Russian Academy of Sciences, 1 Nikolskii pr., 630559 Koltsovo, Russia
| | - Yan Z Voloshin
- Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, 31 Leninsky pr., 119991 Moscow, Russia. .,Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences, 28-1 Vavilova st., 119334 Moscow, Russia
| | - Alexander A Pavlov
- Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences, 28-1 Vavilova st., 119334 Moscow, Russia.,BMSTU Center of National Technological Initiative "Digital Material Science: New Material and Substances", Bauman Moscow State Technical University, 2nd Baumanskaya st. 5, 105005, Moscow, Russia.,National Research University Higher School of Economics, 101000 Moscow, Russia
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Zlobina VV, Kiryutin AS, Nikovskiy IA, Artyushin OI, Kozinenko VP, Peregudov AS, Yurkovskaya AV, Novikov VV. Parahydrogen-Induced Hyperpolarization of Unsaturated Phosphoric Acid Derivatives. Int J Mol Sci 2022; 24:ijms24010557. [PMID: 36613997 PMCID: PMC9820518 DOI: 10.3390/ijms24010557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 12/21/2022] [Accepted: 12/27/2022] [Indexed: 12/31/2022] Open
Abstract
Parahydrogen-induced nuclear polarization offers a significant increase in the sensitivity of NMR spectroscopy to create new probes for medical diagnostics by magnetic resonance imaging. As precursors of the biocompatible hyperpolarized probes, unsaturated derivatives of phosphoric acid, propargyl and allyl phosphates, are proposed. The polarization transfer to 1H and 31P nuclei of the products of their hydrogenation by parahydrogen under the ALTADENA and PASADENA conditions, and by the PH-ECHO-INEPT+ pulse sequence of NMR spectroscopy, resulted in a very high signal amplification, which is among the largest for parahydrogen-induced nuclear polarization transfer to the 31P nucleus.
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Affiliation(s)
- Veronika V. Zlobina
- Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilova Str. 28, 119991 Moscow, Russia
- Moscow Institute of Physics and Technology, National Research University, Institutskiy per. 9, 141700 Dolgoprudny, Russia
| | - Alexey S. Kiryutin
- International Tomography Center, Siberian Branch of the Russian Academy of Sciences, Institutskaya Str. 3A, 630090 Novosibirsk, Russia
- Department of Physics, Novosibirsk State University, Pirogova Str. 2, 30090 Novosibirsk, Russia
| | - Igor A. Nikovskiy
- Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilova Str. 28, 119991 Moscow, Russia
| | - Oleg I. Artyushin
- Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilova Str. 28, 119991 Moscow, Russia
| | - Vitaly P. Kozinenko
- International Tomography Center, Siberian Branch of the Russian Academy of Sciences, Institutskaya Str. 3A, 630090 Novosibirsk, Russia
- Department of Physics, Novosibirsk State University, Pirogova Str. 2, 30090 Novosibirsk, Russia
| | - Alexander S. Peregudov
- Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilova Str. 28, 119991 Moscow, Russia
| | - Alexandra V. Yurkovskaya
- International Tomography Center, Siberian Branch of the Russian Academy of Sciences, Institutskaya Str. 3A, 630090 Novosibirsk, Russia
- Department of Physics, Novosibirsk State University, Pirogova Str. 2, 30090 Novosibirsk, Russia
| | - Valentin V. Novikov
- Moscow Institute of Physics and Technology, National Research University, Institutskiy per. 9, 141700 Dolgoprudny, Russia
- BMSTU Center of National Technological Initiative “Digital Material Science: New Material and Substances”, Bauman Moscow State Technical University, 2nd Baumanskaya Str. 5, 105005 Moscow, Russia
- Correspondence:
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