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Paramagnetic Re(I) complexes with azolyl-nitroxide ligands. / Chernavin, Platon; Maryunina, Kseniya; Letyagin, Gleb и др.

в: Polyhedron, Том 243, 116524, 01.10.2023.

Результаты исследований: Научные публикации в периодических изданияхстатьяРецензирование

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Chernavin P, Maryunina K, Letyagin G, Romanenko G, Tumanov S, Veber S и др. Paramagnetic Re(I) complexes with azolyl-nitroxide ligands. Polyhedron. 2023 окт. 1;243:116524. doi: 10.1016/j.poly.2023.116524

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Chernavin, Platon ; Maryunina, Kseniya ; Letyagin, Gleb и др. / Paramagnetic Re(I) complexes with azolyl-nitroxide ligands. в: Polyhedron. 2023 ; Том 243.

BibTeX

@article{9413a3d318204722b65b3663700e9fe8,
title = "Paramagnetic Re(I) complexes with azolyl-nitroxide ligands",
abstract = "A one-stage synthesis of paramagnetic Re(I) compounds based on the reaction of [Re(CO)5Br] with spin-labeled N-donor heterocycles was developed. Nitronyl nitroxide derivatives of 1H-imidazole (L1), 1H-pyrazole (L2), di(1H-pyrazol-1-yl)methane (L3) and 4-methyl-2-(1H-pyrazol-1-yl)quinoline (L4) can easily substitute two coordinated CO molecules in [Re(CO)5Br], resulting in a series of paramagnetic fac-[Re(CO)3(Li)nBr]·xSolv complexes. Single crystal XRD studies showed that the paramagnetic L1-L4 ligands are coordinated by Re(I) through the imine atoms N of the heterocycles. According to SQUID measurements and EPR spectroscopy data, magnetic behavior of [Re(CO)3(L1)2Br] (1), [Re(CO)3(L2)2Br] (2), and [Re(CO)3(L3)Br] (3) complexes are typical for biradicals, while [Re(CO)3(L4)Br] (4) is typical for monoradical. The combination of Re(I) therapeutic properties and contrasting characteristics of nitroxide radicals in diagnostic magnetic resonance imaging, stability and simplicity of synthesis make [Re(CO)3(Li)nBr] valuable model objects for material design for theranostics purposes.",
author = "Platon Chernavin and Kseniya Maryunina and Gleb Letyagin and Galina Romanenko and Sergey Tumanov and Sergey Veber and Matvey Fedin and Artem Bogomyakov and Victor Ovcharenko",
note = "Acknowledgments: The research was carried out within the state assignment of Ministry of Science and Higher Education of the Russian Federation (theme No.121012290037-2), EPR spectroscopy characterization of studied samples was funded by the Russian Science Foundation (grant number 22-13-00376).",
year = "2023",
month = oct,
day = "1",
doi = "10.1016/j.poly.2023.116524",
language = "English",
volume = "243",
journal = "Polyhedron",
issn = "0277-5387",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Paramagnetic Re(I) complexes with azolyl-nitroxide ligands

AU - Chernavin, Platon

AU - Maryunina, Kseniya

AU - Letyagin, Gleb

AU - Romanenko, Galina

AU - Tumanov, Sergey

AU - Veber, Sergey

AU - Fedin, Matvey

AU - Bogomyakov, Artem

AU - Ovcharenko, Victor

N1 - Acknowledgments: The research was carried out within the state assignment of Ministry of Science and Higher Education of the Russian Federation (theme No.121012290037-2), EPR spectroscopy characterization of studied samples was funded by the Russian Science Foundation (grant number 22-13-00376).

PY - 2023/10/1

Y1 - 2023/10/1

N2 - A one-stage synthesis of paramagnetic Re(I) compounds based on the reaction of [Re(CO)5Br] with spin-labeled N-donor heterocycles was developed. Nitronyl nitroxide derivatives of 1H-imidazole (L1), 1H-pyrazole (L2), di(1H-pyrazol-1-yl)methane (L3) and 4-methyl-2-(1H-pyrazol-1-yl)quinoline (L4) can easily substitute two coordinated CO molecules in [Re(CO)5Br], resulting in a series of paramagnetic fac-[Re(CO)3(Li)nBr]·xSolv complexes. Single crystal XRD studies showed that the paramagnetic L1-L4 ligands are coordinated by Re(I) through the imine atoms N of the heterocycles. According to SQUID measurements and EPR spectroscopy data, magnetic behavior of [Re(CO)3(L1)2Br] (1), [Re(CO)3(L2)2Br] (2), and [Re(CO)3(L3)Br] (3) complexes are typical for biradicals, while [Re(CO)3(L4)Br] (4) is typical for monoradical. The combination of Re(I) therapeutic properties and contrasting characteristics of nitroxide radicals in diagnostic magnetic resonance imaging, stability and simplicity of synthesis make [Re(CO)3(Li)nBr] valuable model objects for material design for theranostics purposes.

AB - A one-stage synthesis of paramagnetic Re(I) compounds based on the reaction of [Re(CO)5Br] with spin-labeled N-donor heterocycles was developed. Nitronyl nitroxide derivatives of 1H-imidazole (L1), 1H-pyrazole (L2), di(1H-pyrazol-1-yl)methane (L3) and 4-methyl-2-(1H-pyrazol-1-yl)quinoline (L4) can easily substitute two coordinated CO molecules in [Re(CO)5Br], resulting in a series of paramagnetic fac-[Re(CO)3(Li)nBr]·xSolv complexes. Single crystal XRD studies showed that the paramagnetic L1-L4 ligands are coordinated by Re(I) through the imine atoms N of the heterocycles. According to SQUID measurements and EPR spectroscopy data, magnetic behavior of [Re(CO)3(L1)2Br] (1), [Re(CO)3(L2)2Br] (2), and [Re(CO)3(L3)Br] (3) complexes are typical for biradicals, while [Re(CO)3(L4)Br] (4) is typical for monoradical. The combination of Re(I) therapeutic properties and contrasting characteristics of nitroxide radicals in diagnostic magnetic resonance imaging, stability and simplicity of synthesis make [Re(CO)3(Li)nBr] valuable model objects for material design for theranostics purposes.

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85164340054&origin=inward&txGid=b1082f49f8aaffa32e9f6ad7beb9312d

UR - https://www.mendeley.com/catalogue/1ed7ab76-82ba-32eb-b41f-8883d518ec4d/

U2 - 10.1016/j.poly.2023.116524

DO - 10.1016/j.poly.2023.116524

M3 - Article

VL - 243

JO - Polyhedron

JF - Polyhedron

SN - 0277-5387

M1 - 116524

ER -

ID: 53971911