1
|
Kolesnikov AE, Bryzgalov AO, Tolstikov SE, Yanshole VV, Romanenko GV, Letyagin GA, Smirnova KA, Tolstikova TG, Bogomyakov AS, Ovcharenko VI. Novel pyridyl-substituted nitronyl nitroxides as potential antiarrhythmic and hypotensive agents with low toxicity and enhanced stability in aqueous solutions. Nitric Oxide 2024; 143:9-15. [PMID: 38096947 DOI: 10.1016/j.niox.2023.12.001] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 12/01/2023] [Accepted: 12/07/2023] [Indexed: 12/21/2023]
Abstract
This study explores the antiarrhythmic and hypotensive potential of pyridyl-substituted nitronyl nitroxides derivatives, uncovering the crucial role of a single carbon moiety of the pyridine cycle alongside radical and charged oxygen centers of the imidazoline fragment. Notably, the introduction of fluorine atoms diminished the antiarrhythmic effect, while the most potent derivatives featured the nitronyl nitroxide pattern positioned at the third site of the pyridine cycle. Gender-dependent responses were observed in lead compounds LCF3 and LMe, with LMe inducing temporary bradycardia and hypotension specifically in female rats, and LCF3 causing significant blood pressure reduction followed by rebound in females compared to milder effects in males. Mechanistic insights point towards β1 adrenoceptor blockade as an underlying mechanism, supported by experiments on isolated rat atria. This research underscores the interplay between structure, cardiovascular effects and gender-specific responses, offering insights for therapeutic strategies for treating free radical-associated cardiovascular disorders.
Collapse
Affiliation(s)
- Andrey E Kolesnikov
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky prospect 47, Moscow, 119991, Russia.
| | - Arkadiy O Bryzgalov
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Russian Academy of Sciences, Siberian Branch, Akademika Lavrentieva prospect 9, Novosibirsk, 630090, Russia.
| | - Svyatoslav E Tolstikov
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky prospect 47, Moscow, 119991, Russia; International Tomography Center, Russian Academy of Sciences, Siberian Branch, Institutskaya ulitsa 3a, Novosibirsk, 630090, Russia
| | - Vadim V Yanshole
- International Tomography Center, Russian Academy of Sciences, Siberian Branch, Institutskaya ulitsa 3a, Novosibirsk, 630090, Russia
| | - Galina V Romanenko
- International Tomography Center, Russian Academy of Sciences, Siberian Branch, Institutskaya ulitsa 3a, Novosibirsk, 630090, Russia
| | - Gleb A Letyagin
- International Tomography Center, Russian Academy of Sciences, Siberian Branch, Institutskaya ulitsa 3a, Novosibirsk, 630090, Russia
| | - Kristina A Smirnova
- International Tomography Center, Russian Academy of Sciences, Siberian Branch, Institutskaya ulitsa 3a, Novosibirsk, 630090, Russia
| | - Tatiana G Tolstikova
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Russian Academy of Sciences, Siberian Branch, Akademika Lavrentieva prospect 9, Novosibirsk, 630090, Russia
| | - Artem S Bogomyakov
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky prospect 47, Moscow, 119991, Russia; International Tomography Center, Russian Academy of Sciences, Siberian Branch, Institutskaya ulitsa 3a, Novosibirsk, 630090, Russia
| | - Victor I Ovcharenko
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky prospect 47, Moscow, 119991, Russia; International Tomography Center, Russian Academy of Sciences, Siberian Branch, Institutskaya ulitsa 3a, Novosibirsk, 630090, Russia
| |
Collapse
|
2
|
Tumanov SV, Ponomaryov AN, Maryunina KY, Bogomyakov AS, Ovcharenko VI, Zvyagin SA, Fedin MV, Veber SL. High-field EPR of copper(II)-nitroxide compound exhibiting three-step phase transition: structural insights from the field-induced sample orientation. Dalton Trans 2023. [PMID: 37350573 DOI: 10.1039/d3dt01297b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/24/2023]
Abstract
Copper(II)-nitroxide based Cu(hfac)2LR compounds exhibit unusual magnetic behavior that can be induced by various stimuli. In many aspects, the magnetic phenomena observed in Cu(hfac)2LR are similar to classical spin-crossover behavior. However, these phenomena originate from polynuclear exchange-coupled spin clusters Cu2+-O˙-N< or >N-˙O-Cu2+-O˙-N<. Such peculiarities may result in additional multifunctionality of Cu(hfac)2LR compounds, making them promising materials for spintronic applications. Herein, we investigate the Cu(hfac)2LMeMe material, which demonstrates a three-step temperature-induced magnetostructural transition between high-temperature, low-temperature, and intermediate states, as revealed by magnetometry. Two main steps were resolved using variable-temperature Fourier-transform infrared and Q-band electron paramagnetic resonance (EPR) spectroscopies. The intermediate-temperature states (∼40-90 K) are characterized by the coexistence of two types of copper(II)-nitroxide clusters, corresponding to the low-temperature and high-temperature phases. High-field EPR experiments revealed the effect of partial alignment of Cu(hfac)2LMeMe microcrystals in a strong (>20 T) magnetic field. This effect was used to unveil the structural features of the low-temperature phase of Cu(hfac)2LMeMe, which were inaccessible using single-crystal X-ray diffraction (XRD) technique. In particular, high-field EPR allowed us to determine the relative direction of the Jahn-Teller axes in CuO6 and CuO4N2 units.
Collapse
Affiliation(s)
- Sergey V Tumanov
- International Tomography Center SB RAS, Institutskaya Str. 3a, 630090, Novosibirsk, Russia.
- Novosibirsk State University, Pirogova Str. 1, 630090, Novosibirsk, Russia
| | - Alexey N Ponomaryov
- Dresden High Magnetic Field Laboratory (HLD-EMFL), Helmholtz-Zentrum Dresden-Rossendorf, 01328 Dresden, Germany
| | - Kseniya Yu Maryunina
- International Tomography Center SB RAS, Institutskaya Str. 3a, 630090, Novosibirsk, Russia.
| | - Artem S Bogomyakov
- International Tomography Center SB RAS, Institutskaya Str. 3a, 630090, Novosibirsk, Russia.
| | - Victor I Ovcharenko
- International Tomography Center SB RAS, Institutskaya Str. 3a, 630090, Novosibirsk, Russia.
| | - Sergei A Zvyagin
- Dresden High Magnetic Field Laboratory (HLD-EMFL), Helmholtz-Zentrum Dresden-Rossendorf, 01328 Dresden, Germany
| | - Matvey V Fedin
- International Tomography Center SB RAS, Institutskaya Str. 3a, 630090, Novosibirsk, Russia.
- Novosibirsk State University, Pirogova Str. 1, 630090, Novosibirsk, Russia
| | - Sergey L Veber
- International Tomography Center SB RAS, Institutskaya Str. 3a, 630090, Novosibirsk, Russia.
- Novosibirsk State University, Pirogova Str. 1, 630090, Novosibirsk, Russia
| |
Collapse
|
3
|
Dodonov VA, Makarov VM, Zemnyukova MN, Razborov DA, Baranov EV, Bogomyakov AS, Ovcharenko VI, Fedushkin IL. Stability and Solution Behavior of [(dpp-Bian)Ln] and [(dpp-Bian)LnX] (Ln = Yb, Tm, or Dy; X = I, F, or N 3). Organometallics 2023. [DOI: 10.1021/acs.organomet.2c00640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
Affiliation(s)
- Vladimir A. Dodonov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences (IOMC RAS), Tropinina 49, Nizhny Novgorod 603950, Russian Federation
| | - Valentin M. Makarov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences (IOMC RAS), Tropinina 49, Nizhny Novgorod 603950, Russian Federation
| | - Marina N. Zemnyukova
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences (IOMC RAS), Tropinina 49, Nizhny Novgorod 603950, Russian Federation
| | - Danila A. Razborov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences (IOMC RAS), Tropinina 49, Nizhny Novgorod 603950, Russian Federation
| | - Evgeny V. Baranov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences (IOMC RAS), Tropinina 49, Nizhny Novgorod 603950, Russian Federation
| | - Artem S. Bogomyakov
- International Tomography Center, Siberian Branch of the Russian Academy of Sciences, Institutskaya Street 3a, Novosibirsk 630090, Russian Federation
| | - Victor I. Ovcharenko
- International Tomography Center, Siberian Branch of the Russian Academy of Sciences, Institutskaya Street 3a, Novosibirsk 630090, Russian Federation
| | - Igor L. Fedushkin
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences (IOMC RAS), Tropinina 49, Nizhny Novgorod 603950, Russian Federation
| |
Collapse
|
4
|
Bazyakina NL, Makarov VM, Moskalev MV, Baranov EV, Bogomyakov AS, Ovcharenko VI, Fedushkin IL. Coordination polymers derived from magnesium and barium complexes of redox-active ligands. Mendeleev Communications 2022. [DOI: 10.1016/j.mencom.2022.11.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
5
|
Tretyakov EV, Petunin PV, Zhivetyeva SI, Gorbunov DE, Gritsan NP, Fedin MV, Stass DV, Samoilova RI, Bagryanskaya IY, Shundrina IK, Bogomyakov AS, Kazantsev MS, Postnikov PS, Trusova ME, Ovcharenko VI. Platform for High-Spin Molecules: A Verdazyl-Nitronyl Nitroxide Triradical with Quartet Ground State. J Am Chem Soc 2021; 143:8164-8176. [PMID: 34019759 DOI: 10.1021/jacs.1c02938] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Thermally resistant air-stable organic triradicals with a quartet ground state and a large energy gap between spin states are still unique compounds. In this work, we succeeded to design and prepare the first highly stable triradical, consisting of oxoverdazyl and nitronyl nitroxide radical fragments, with a quartet ground state. The triradical and its diradical precursor were synthesized via a palladium-catalyzed cross-coupling reaction of diiodoverdazyl with nitronyl nitroxide-2-ide gold(I) complex. Both paramagnetic compounds were fully characterized by single-crystal X-ray diffraction analysis, superconducting quantum interference device magnetometry, EPR spectroscopy in various matrices, and cyclic voltammetry. In the diradical, the verdazyl and nitronyl nitroxide centers demonstrated full reversibility of redox process, while for the triradical, the electrochemical reduction and oxidation proceed at practically the same redox potentials, but become quasi-reversible. A series of high-level CASSCF/NEVPT2 calculations was performed to predict inter- and intramolecular exchange interactions in crystals of di- and triradicals and to establish their magnetic motifs. Based on the predicted magnetic motifs, the temperature dependences of the magnetic susceptibility were analyzed, and the singlet-triplet (135 ± 10 cm-1) and doublet-quartet (17 ± 2 and 152 ± 19 cm-1) splitting was found to be moderate. Unique high stability of synthesized verdazyl-nitronylnitroxide triradical opens new perspectives for further functionalization and design of high-spin systems with four or more spins.
Collapse
Affiliation(s)
- Evgeny V Tretyakov
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Ave. 47, Moscow 119991, Russian Federation
| | - Pavel V Petunin
- Tomsk Polytechnic University, Lenin Ave. 30, Tomsk 634050, Russian Federation
| | - Svetlana I Zhivetyeva
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of Russian Academy of Sciences, Ac. Lavrentiev Ave. 9, Novosibirsk 630090, Russian Federation
| | - Dmitry E Gorbunov
- V.V. Voevodsky Institute of Chemical Kinetics and Combustion, Siberian Branch of Russian Academy of Sciences, Institutskaya Str. 3, Novosibirsk 630090, Russian Federation
| | - Nina P Gritsan
- V.V. Voevodsky Institute of Chemical Kinetics and Combustion, Siberian Branch of Russian Academy of Sciences, Institutskaya Str. 3, Novosibirsk 630090, Russian Federation
| | - Matvey V Fedin
- International Tomography Center, Siberian Branch of Russian Academy of Sciences, Institutskaya Str. 3a, Novosibirsk 630090, Russian Federation
| | - Dmitri V Stass
- V.V. Voevodsky Institute of Chemical Kinetics and Combustion, Siberian Branch of Russian Academy of Sciences, Institutskaya Str. 3, Novosibirsk 630090, Russian Federation.,Novosibirsk State University, Pirogova Str. 2, Novosibirsk 630090, Russian Federation
| | - Rimma I Samoilova
- V.V. Voevodsky Institute of Chemical Kinetics and Combustion, Siberian Branch of Russian Academy of Sciences, Institutskaya Str. 3, Novosibirsk 630090, Russian Federation
| | - Irina Yu Bagryanskaya
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of Russian Academy of Sciences, Ac. Lavrentiev Ave. 9, Novosibirsk 630090, Russian Federation
| | - Inna K Shundrina
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of Russian Academy of Sciences, Ac. Lavrentiev Ave. 9, Novosibirsk 630090, Russian Federation
| | - Artem S Bogomyakov
- International Tomography Center, Siberian Branch of Russian Academy of Sciences, Institutskaya Str. 3a, Novosibirsk 630090, Russian Federation
| | - Maxim S Kazantsev
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of Russian Academy of Sciences, Ac. Lavrentiev Ave. 9, Novosibirsk 630090, Russian Federation
| | - Pavel S Postnikov
- Tomsk Polytechnic University, Lenin Ave. 30, Tomsk 634050, Russian Federation
| | - Marina E Trusova
- Tomsk Polytechnic University, Lenin Ave. 30, Tomsk 634050, Russian Federation
| | - Victor I Ovcharenko
- International Tomography Center, Siberian Branch of Russian Academy of Sciences, Institutskaya Str. 3a, Novosibirsk 630090, Russian Federation
| |
Collapse
|
6
|
Bazyakina NL, Makarov VM, Ketkov SY, Bogomyakov AS, Rumyantcev RV, Ovcharenko VI, Fedushkin IL. Metal-Organic Frameworks Derived from Calcium and Strontium Complexes of a Redox-Active Ligand. Inorg Chem 2021; 60:3238-3248. [PMID: 33587624 DOI: 10.1021/acs.inorgchem.0c03647] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The reactions of monomeric [(dpp-Bian)M(thf)4] (M = Ca (1a), Sr (1b); dpp-Bian = 1,2-bis[(2,6-diisopropylphenyl)imino]acenaphthene) with 4,4'-bipyridyl (4,4'-bipy) proceed with electron transfer from dpp-Bian2- to 4,4'-bipy0 to afford calcium and strontium complexes containing simultaneously radical-anionic dpp-Bian- and 4,4'-bipy- ligands. In tetrahydrofuran (thf) the reactions result in 1D coordination polymers [{(dpp-Bian)M(4,4'-bipy)(thf)2}·4thf]n (M = Ca (2a), Sr (2b)), while in a thf/benzene mixture the reaction between 1a and 4,4'-bipy affords the 2D metal-organic framework [{(dpp-Bian)Ca(4,4'-bipy)2}·2thf·2C6H6]n (3). The structures of compounds 2a,b and 3 have been determined by single-crystal X-ray analyses. The presence of the ligand-localized unpaired electrons allows the use of ESR spectroscopy for characterization of the compounds 2a,b and 3. DFT calculations of model calcium complexes with the dpp-Bian, 4,4'-bipy, and thf ligands confirm the energetically favorable open-shell configurations of the molecules bearing the 4,4'-bipy fragments. The magnetic susceptibility measurements confirm the presence of two unpaired electrons per monomeric unit in 2a,b and 3. The thermal stability of compounds 2a,b and 3 was studied by thermogravimetric analysis (TGA). To the best of our knowledge, 3 is the first MOF simultaneously containing two different paramagnetic bridging ligands inside the framework.
Collapse
Affiliation(s)
- Natalia L Bazyakina
- G.A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, Tropinina 49, Nizhny Novgorod 603137, Russian Federation
| | - Valentin M Makarov
- G.A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, Tropinina 49, Nizhny Novgorod 603137, Russian Federation
| | - Sergey Yu Ketkov
- G.A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, Tropinina 49, Nizhny Novgorod 603137, Russian Federation
| | - Artem S Bogomyakov
- International Tomography Center, Siberian Branch of the Russian Academy of Sciences, Institutskaya 3a, Novosibirsk, 630090 Russian Federation
| | - Roman V Rumyantcev
- G.A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, Tropinina 49, Nizhny Novgorod 603137, Russian Federation
| | - Victor I Ovcharenko
- International Tomography Center, Siberian Branch of the Russian Academy of Sciences, Institutskaya 3a, Novosibirsk, 630090 Russian Federation
| | - Igor L Fedushkin
- G.A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, Tropinina 49, Nizhny Novgorod 603137, Russian Federation
| |
Collapse
|
7
|
Kadilenko EM, Gritsan NP, Tretyakov EV, Fokin SV, Romanenko GV, Bogomyakov AS, Gorbunov DE, Schollmeyer D, Baumgarten M, Ovcharenko VI. A black-box approach to the construction of metal-radical multispin systems and analysis of their magnetic properties. Dalton Trans 2020; 49:16916-16927. [PMID: 33188374 DOI: 10.1039/d0dt03184d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
An interaction of M(hfac)2 (M = Mn or Ni) with N-(bis(4,4,5,5-tetramethyl-3-oxido-1-oxyl-4,5-dihydro-1H-imidazol-2-yl)methylene)-2-methyl-propan-2-amine oxide (a nitronyl nitroxide diradical with the >C[double bond, length as m-dash]N(O)-tert-Bu coupler) was investigated under various conditions. It was found that prolongation of reaction time caused transformation of the initial diradical into new diradicals with the unique >C[double bond, length as m-dash]N-OH coupling unit and formation of binuclear Mn(ii) and Ni(ii) complexes, which were characterized by X-ray diffraction analysis. The resulting binuclear heterospin complexes have a complicated magnetic structure with six paramagnetic centers and a number of exchange interaction channels between them, as well as between neighboring complexes. To adequately describe the magnetic properties of these complexes, high-level ab initio calculations of their electronic structure and parameters of the spin-Hamiltonian were carried out. The accuracy of the conventional broken-symmetry density functional theory approach in the calculation of the exchange interaction parameters was also verified.
Collapse
Affiliation(s)
- E M Kadilenko
- V. V. Voevodsky Institute of Chemical Kinetics and Combustion, 3 Institutskaya Str., Novosibirsk 630090, Russia.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
8
|
Tretyakov EV, Zhivetyeva SI, Petunin PV, Gorbunov DE, Gritsan NP, Bagryanskaya IY, Bogomyakov AS, Postnikov PS, Kazantsev MS, Trusova ME, Shundrina IK, Zaytseva EV, Parkhomenko DA, Bagryanskaya EG, Ovcharenko VI. Ferromagnetically Coupled
S
=1 Chains in Crystals of Verdazyl‐Nitronyl Nitroxide Diradicals. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202010041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Evgeny V. Tretyakov
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry 9 Ac. Lavrentiev Avenue Novosibirsk 630090 Russia
- Novosibirsk State University 2 Pirogova Str. Novosibirsk 630090 Russia
| | - Svetlana I. Zhivetyeva
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry 9 Ac. Lavrentiev Avenue Novosibirsk 630090 Russia
| | - Pavel V. Petunin
- Research School of Chemistry & Applied Biomedical Sciences Tomsk Polytechnic University 30 Lenin Avenue Tomsk 634050 Russia
| | - Dmitry E. Gorbunov
- Novosibirsk State University 2 Pirogova Str. Novosibirsk 630090 Russia
- Voevodsky Institute of Chemical Kinetics and Combustions 3 Institutskaya Str. Novosibirsk 630090 Russia
| | - Nina P. Gritsan
- Novosibirsk State University 2 Pirogova Str. Novosibirsk 630090 Russia
- Voevodsky Institute of Chemical Kinetics and Combustions 3 Institutskaya Str. Novosibirsk 630090 Russia
| | - Irina Yu. Bagryanskaya
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry 9 Ac. Lavrentiev Avenue Novosibirsk 630090 Russia
- Novosibirsk State University 2 Pirogova Str. Novosibirsk 630090 Russia
| | - Artem S. Bogomyakov
- International Tomography Center 3a Institutskaya Str. Novosibirsk 630090 Russia
| | - Pavel S. Postnikov
- Research School of Chemistry & Applied Biomedical Sciences Tomsk Polytechnic University 30 Lenin Avenue Tomsk 634050 Russia
- University of Chemistry and Technology 3 Technicka 16628 Prague Czech Republic
| | - Maxim S. Kazantsev
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry 9 Ac. Lavrentiev Avenue Novosibirsk 630090 Russia
- Novosibirsk State University 2 Pirogova Str. Novosibirsk 630090 Russia
| | - Marina E. Trusova
- Research School of Chemistry & Applied Biomedical Sciences Tomsk Polytechnic University 30 Lenin Avenue Tomsk 634050 Russia
| | - Inna K. Shundrina
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry 9 Ac. Lavrentiev Avenue Novosibirsk 630090 Russia
| | - Elena V. Zaytseva
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry 9 Ac. Lavrentiev Avenue Novosibirsk 630090 Russia
- Novosibirsk State University 2 Pirogova Str. Novosibirsk 630090 Russia
| | - Dmitriy A. Parkhomenko
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry 9 Ac. Lavrentiev Avenue Novosibirsk 630090 Russia
- Novosibirsk State University 2 Pirogova Str. Novosibirsk 630090 Russia
| | - Elena G. Bagryanskaya
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry 9 Ac. Lavrentiev Avenue Novosibirsk 630090 Russia
- Novosibirsk State University 2 Pirogova Str. Novosibirsk 630090 Russia
| | | |
Collapse
|
9
|
Ovcharenko VI, Kuznetsova OV. New method for the synthesis of heterospin metal complexes with nitroxides. Russ Chem Rev 2020. [DOI: 10.1070/rcr4981] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
10
|
Tretyakov EV, Zhivetyeva SI, Petunin PV, Gorbunov DE, Gritsan NP, Bagryanskaya IY, Bogomyakov AS, Postnikov PS, Kazantsev MS, Trusova ME, Shundrina IK, Zaytseva EV, Parkhomenko DA, Bagryanskaya EG, Ovcharenko VI. Ferromagnetically Coupled S=1 Chains in Crystals of Verdazyl-Nitronyl Nitroxide Diradicals. Angew Chem Int Ed Engl 2020; 59:20704-20710. [PMID: 32715591 DOI: 10.1002/anie.202010041] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Indexed: 11/09/2022]
Abstract
Thermally stable organic diradicals with a triplet ground state along with large singlet-triplet energy gap have significant potential for advanced technological applications. A series of phenylene-bridged diradicals with oxoverdazyl and nitronyl nitroxide units were synthesized via a palladium-catalyzed cross-coupling reaction of iodoverdazyls with a nitronyl nitroxide-2-ide gold(I) complex with high yields. The diradicals exhibit high stability and do not decompose in an inert atmosphere up to 180 °C. For the diradicals, both substantial AF (ΔEST ≈-64 cm-1 ) and FM (ΔEST ≥25 and 100 cm-1 ) intramolecular exchange interactions were observed. The sign of the exchange interaction is determined both by the bridging moiety (para- or meta-phenylene) and by the type of oxoverdazyl block (C-linked or N-linked). Upon crystallization, diradicals with the triplet ground state form unique one-dimensional exchange-coupled chains with strong intra- and weak inter-diradical ferromagnetic coupling.
Collapse
Affiliation(s)
- Evgeny V Tretyakov
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, 9 Ac. Lavrentiev Avenue, Novosibirsk, 630090, Russia.,Novosibirsk State University, 2 Pirogova Str., Novosibirsk, 630090, Russia
| | - Svetlana I Zhivetyeva
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, 9 Ac. Lavrentiev Avenue, Novosibirsk, 630090, Russia
| | - Pavel V Petunin
- Research School of Chemistry & Applied Biomedical Sciences, Tomsk Polytechnic University, 30 Lenin Avenue, Tomsk, 634050, Russia
| | - Dmitry E Gorbunov
- Novosibirsk State University, 2 Pirogova Str., Novosibirsk, 630090, Russia.,Voevodsky Institute of Chemical Kinetics and Combustions, 3 Institutskaya Str., Novosibirsk, 630090, Russia
| | - Nina P Gritsan
- Novosibirsk State University, 2 Pirogova Str., Novosibirsk, 630090, Russia.,Voevodsky Institute of Chemical Kinetics and Combustions, 3 Institutskaya Str., Novosibirsk, 630090, Russia
| | - Irina Yu Bagryanskaya
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, 9 Ac. Lavrentiev Avenue, Novosibirsk, 630090, Russia.,Novosibirsk State University, 2 Pirogova Str., Novosibirsk, 630090, Russia
| | - Artem S Bogomyakov
- International Tomography Center, 3a Institutskaya Str., Novosibirsk, 630090, Russia
| | - Pavel S Postnikov
- Research School of Chemistry & Applied Biomedical Sciences, Tomsk Polytechnic University, 30 Lenin Avenue, Tomsk, 634050, Russia.,University of Chemistry and Technology, 3 Technicka, 16628, Prague, Czech Republic
| | - Maxim S Kazantsev
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, 9 Ac. Lavrentiev Avenue, Novosibirsk, 630090, Russia.,Novosibirsk State University, 2 Pirogova Str., Novosibirsk, 630090, Russia
| | - Marina E Trusova
- Research School of Chemistry & Applied Biomedical Sciences, Tomsk Polytechnic University, 30 Lenin Avenue, Tomsk, 634050, Russia
| | - Inna K Shundrina
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, 9 Ac. Lavrentiev Avenue, Novosibirsk, 630090, Russia
| | - Elena V Zaytseva
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, 9 Ac. Lavrentiev Avenue, Novosibirsk, 630090, Russia.,Novosibirsk State University, 2 Pirogova Str., Novosibirsk, 630090, Russia
| | - Dmitriy A Parkhomenko
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, 9 Ac. Lavrentiev Avenue, Novosibirsk, 630090, Russia.,Novosibirsk State University, 2 Pirogova Str., Novosibirsk, 630090, Russia
| | - Elena G Bagryanskaya
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, 9 Ac. Lavrentiev Avenue, Novosibirsk, 630090, Russia.,Novosibirsk State University, 2 Pirogova Str., Novosibirsk, 630090, Russia
| | - Victor I Ovcharenko
- International Tomography Center, 3a Institutskaya Str., Novosibirsk, 630090, Russia
| |
Collapse
|
11
|
Greatorex S, Fokin SV, Kulmaczewski R, Yamada M, Cespedes O, Yoshinari N, Konno T, Sproules S, Ovcharenko VI, Halcrow MA. Modulating the Magnetic Properties of Copper(II)/Nitroxyl Heterospin Complexes by Suppression of the Jahn–Teller Distortion. Inorg Chem 2020; 59:8657-8662. [DOI: 10.1021/acs.inorgchem.0c01345] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sam Greatorex
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K
| | - Sergey V. Fokin
- International Tomography Center, Siberian Branch of Russian Academy of Science, Institutskaya Strasse 3a, Novosibirsk 630090, Russia
| | - Rafal Kulmaczewski
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K
| | - Mihoko Yamada
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, Ikoma, Nara 630-0192, Japan
| | - Oscar Cespedes
- School of Physics and Astronomy, University of Leeds, EC Stoner Building, Leeds LS2 9JT, U.K
| | - Nobuto Yoshinari
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Takumi Konno
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Stephen Sproules
- WestCHEM, School of Chemistry, University of Glasgow, Glasgow G12 8QQ, U.K
| | - Victor I. Ovcharenko
- International Tomography Center, Siberian Branch of Russian Academy of Science, Institutskaya Strasse 3a, Novosibirsk 630090, Russia
| | - Malcolm A. Halcrow
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| |
Collapse
|
12
|
Fishman NN, Lukzen NN, Ivanov KL, Edeleva MV, Fokin SV, Romanenko GV, Ovcharenko VI. Multifrequency Nuclear Magnetic Resonance as an Efficient Tool To Investigate Heterospin Complexes in Solutions. J Phys Chem A 2020; 124:1343-1352. [PMID: 31986040 DOI: 10.1021/acs.jpca.9b11104] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report a multifrequency nuclear magnetic resonance (NMR) study of heterospin complexes [Eu(SQ)3Ln], where SQ is 3,6-di(tert-butyl)-1,2-semiquinone, L is tetrahydrofuran (THF), pyridine (Py), or 2,2'-dipyridyl (Dipy), and n is the number of diamagnetic ligands. Multifrequency NMR experiments allowed us to determine the effective paramagnetic shifts of the ligands (L = THF or Py) and the chemical equilibrium constant for [Eu(SQ)3(THF)2]. In addition, we have found a strong magnetic field effect on the NMR line broadening, giving rise to very broad NMR lines at high magnetic fields. We attribute this effect to broadening under fast exchange conditions when the NMR spectrum represents a homogeneously broadened line with a width proportional to the square of the NMR frequency difference of the free and bound forms of L. Consequently, the line width strongly increases with the magnetic field. This broadening effect allows one to determine relevant kinetic parameters, i.e., the effective exchange time. The strong broadening effect allows one to exploit the [Eu(SQ)3(THF)2] complex as an efficient shift reagent, which not only shifts unwanted NMR signals but also broadens them, notably, in high-field NMR experiments. We have also found that [Eu(SQ)3Dipy] is a thermodynamically stable complex; hence, one can study [Eu(SQ)3Dipy] solutions without special precautions. We report an X-ray structure of the [Eu(SQ)3Dipy]·C6D6 crystals that have been grown directly in an NMR tube. This shows that multifrequency NMR investigations of heterospin compound solutions not only provide thermodynamic and kinetic data for heterospin species but also can be useful for the rational design of stable heterospin complexes and optimization of synthetic approaches.
Collapse
Affiliation(s)
- Natalya N Fishman
- International Tomography Center , Siberian Branch of the Russian Academy of Sciences , Institutskaya Strasse 3a , Novosibirsk 630090 , Russia.,Novosibirsk State University , Pirogova Strasse 1 , Novosibirsk 630090 , Russia
| | - Nikita N Lukzen
- International Tomography Center , Siberian Branch of the Russian Academy of Sciences , Institutskaya Strasse 3a , Novosibirsk 630090 , Russia.,Novosibirsk State University , Pirogova Strasse 1 , Novosibirsk 630090 , Russia
| | - Konstantin L Ivanov
- International Tomography Center , Siberian Branch of the Russian Academy of Sciences , Institutskaya Strasse 3a , Novosibirsk 630090 , Russia.,Novosibirsk State University , Pirogova Strasse 1 , Novosibirsk 630090 , Russia
| | - Mariya V Edeleva
- Vorozhtsov Novosibirsk Institute of Organic Chemistry , Siberian Branch of the Russian Academy of Sciences , Academician Lavrentyev Avenue 9 , Novosibirsk 630090 , Russia
| | - Sergey V Fokin
- International Tomography Center , Siberian Branch of the Russian Academy of Sciences , Institutskaya Strasse 3a , Novosibirsk 630090 , Russia
| | - Galina V Romanenko
- International Tomography Center , Siberian Branch of the Russian Academy of Sciences , Institutskaya Strasse 3a , Novosibirsk 630090 , Russia
| | - Victor I Ovcharenko
- International Tomography Center , Siberian Branch of the Russian Academy of Sciences , Institutskaya Strasse 3a , Novosibirsk 630090 , Russia
| |
Collapse
|
13
|
Tumanov SV, Veber SL, Tolstikov SE, Artiukhova NA, Ovcharenko VI, Fedin MV. Exchange interactions in photoinduced magnetostructural states of copper( ii)–nitroxide spin dyads. Dalton Trans 2020; 49:5851-5858. [DOI: 10.1039/d0dt00706d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
We investigate intra- and intercluster exchange couplings in photoinduced states of copper(ii)–nitroxide based molecular magnets (“breathing crystals”) using variable-temperature EPR spectroscopy.
Collapse
Affiliation(s)
- Sergey V. Tumanov
- International Tomography Center SB RAS
- 630090 Novosibirsk
- Russia
- Novosibirsk State University
- 630090 Novosibirsk
| | - Sergey L. Veber
- International Tomography Center SB RAS
- 630090 Novosibirsk
- Russia
- Novosibirsk State University
- 630090 Novosibirsk
| | | | | | | | - Matvey V. Fedin
- International Tomography Center SB RAS
- 630090 Novosibirsk
- Russia
- Novosibirsk State University
- 630090 Novosibirsk
| |
Collapse
|
14
|
Veber SL, Tumanov SV, Fursova EY, Shevchenko OA, Getmanov YV, Scheglov MA, Kubarev VV, Shevchenko DA, Gorbachev II, Salikova TV, Kulipanov GN, Ovcharenko VI, Fedin MV. X-band EPR setup with THz light excitation of Novosibirsk Free Electron Laser: Goals, means, useful extras. J Magn Reson 2018; 288:11-22. [PMID: 29360045 DOI: 10.1016/j.jmr.2018.01.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Revised: 01/10/2018] [Accepted: 01/11/2018] [Indexed: 06/07/2023]
Abstract
Electron Paramagnetic Resonance (EPR) station at the Novosibirsk Free Electron Laser (NovoFEL) user facility is described. It is based on X-band (∼9 GHz) EPR spectrometer and operates in both Continuous Wave (CW) and Time-Resolved (TR) modes, each allowing detection of either direct or indirect influence of high-power NovoFEL light (THz and mid-IR) on the spin system under study. The optics components including two parabolic mirrors, shutters, optical chopper and multimodal waveguide allow the light of NovoFEL to be directly fed into the EPR resonator. Characteristics of the NovoFEL radiation, the transmission and polarization-retaining properties of the waveguide used in EPR experiments are presented. The types of proposed experiments accessible using this setup are sketched. In most practical cases the high-power radiation applied to the sample induces its rapid temperature increase (T-jump), which is best visible in TR mode. Although such influence is a by-product of THz radiation, this thermal effect is controllable and can deliberately be used to induce and measure transient signals of arbitrary samples. The advantage of tunable THz radiation is the absence of photo-induced processes in the sample and its high penetration ability, allowing fast heating of a large portion of virtually any sample and inducing intense transients. Such T-jump TR EPR spectroscopy with THz pulses has been previewed for the two test samples, being a useful supplement for the main goals of the created setup.
Collapse
Affiliation(s)
- Sergey L Veber
- International Tomography Center, SB RAS, Novosibirsk 630090, Russia; Novosibirsk State University, Novosibirsk 630090, Russia.
| | - Sergey V Tumanov
- International Tomography Center, SB RAS, Novosibirsk 630090, Russia; Novosibirsk State University, Novosibirsk 630090, Russia
| | - Elena Yu Fursova
- International Tomography Center, SB RAS, Novosibirsk 630090, Russia
| | - Oleg A Shevchenko
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk 630090, Russia
| | | | | | - Vitaly V Kubarev
- Novosibirsk State University, Novosibirsk 630090, Russia; Budker Institute of Nuclear Physics, SB RAS, Novosibirsk 630090, Russia
| | | | | | | | | | | | - Matvey V Fedin
- International Tomography Center, SB RAS, Novosibirsk 630090, Russia; Novosibirsk State University, Novosibirsk 630090, Russia
| |
Collapse
|
15
|
Dong X, Lorenc M, Tretyakov EV, Ovcharenko VI, Fedin MV. Light-Induced Spin State Switching in Copper(II)-Nitroxide-Based Molecular Magnet at Room Temperature. J Phys Chem Lett 2017; 8:5587-5592. [PMID: 29087205 DOI: 10.1021/acs.jpclett.7b02497] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Molecular magnets Cu(hfac)2LR exhibit an unusual type of photoinduced magnetostructural switching in exchange-coupled copper(II)-nitroxide clusters. Such photoswitching from strongly coupled to weakly coupled spin state (SS → WS) was recently found to be ultrafast, thus enhancing the interest in these systems and the scope of their potential applications. However, to date such SS → WS photoswitching was demonstrated only at cryogenic temperatures, being limited by the absence of suitable SS states and short relaxation times at T > 100 K. In this work we selected model compound Cu(hfac)2Liso-Pr residing in the mixed SS/WS state at room temperature and investigated it using femtosecond optical spectroscopy. Photoinduced spin dynamics was detected, and an ultrafast SS → WS photoswitching was for the first time demonstrated at room temperature, constituting an important milestone in the development of copper(II)-nitroxide molecular magnets for practical purposes.
Collapse
Affiliation(s)
- Xu Dong
- Institut de Physique de Rennes , UMR CNRS 6251, Universite de Rennes 1, 35042 Rennes, France
| | - Maciej Lorenc
- Institut de Physique de Rennes , UMR CNRS 6251, Universite de Rennes 1, 35042 Rennes, France
| | - Evgeny V Tretyakov
- International Tomography Center SB RAS , 630090, Novosibirsk, Russia
- Novosibirsk State University , 630090, Novosibirsk, Russia
| | | | - Matvey V Fedin
- International Tomography Center SB RAS , 630090, Novosibirsk, Russia
- Novosibirsk State University , 630090, Novosibirsk, Russia
| |
Collapse
|
16
|
Tumanov SV, Veber SL, Tolstikov SE, Artiukhova NA, Romanenko GV, Ovcharenko VI, Fedin MV. Light-Induced Spin State Switching and Relaxation in Spin Pairs of Copper(II)–Nitroxide Based Molecular Magnets. Inorg Chem 2017; 56:11729-11737. [DOI: 10.1021/acs.inorgchem.7b01689] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sergey V. Tumanov
- International Tomography Center SB RAS, Institutskaya
Str. 3a, 630090 Novosibirsk, Russia
- Novosibirsk State University, Pirogova
Str. 2, 630090 Novosibirsk, Russia
| | - Sergey L. Veber
- International Tomography Center SB RAS, Institutskaya
Str. 3a, 630090 Novosibirsk, Russia
- Novosibirsk State University, Pirogova
Str. 2, 630090 Novosibirsk, Russia
| | | | - Natalia A. Artiukhova
- International Tomography Center SB RAS, Institutskaya
Str. 3a, 630090 Novosibirsk, Russia
| | - Galina V. Romanenko
- International Tomography Center SB RAS, Institutskaya
Str. 3a, 630090 Novosibirsk, Russia
| | - Victor I. Ovcharenko
- International Tomography Center SB RAS, Institutskaya
Str. 3a, 630090 Novosibirsk, Russia
| | - Matvey V. Fedin
- International Tomography Center SB RAS, Institutskaya
Str. 3a, 630090 Novosibirsk, Russia
- Novosibirsk State University, Pirogova
Str. 2, 630090 Novosibirsk, Russia
| |
Collapse
|
17
|
Fedushkin IL, Yambulatov DS, Skatova AA, Baranov EV, Demeshko S, Bogomyakov AS, Ovcharenko VI, Zueva EM. Ytterbium and Europium Complexes of Redox-Active Ligands: Searching for Redox Isomerism. Inorg Chem 2017; 56:9825-9833. [PMID: 28786665 DOI: 10.1021/acs.inorgchem.7b01344] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The reaction of (dpp-Bian)EuII(dme)2 (3) (dpp-Bian is dianion of 1,2-bis[(2,6-diisopropylphenyl)imino]acenaphthene; dme is 1,2-dimethoxyethane) with 2,2'-bipyridine (bipy) in toluene proceeds with replacement of the coordinated solvent molecules with neutral bipy ligands and affords europium(II) complex (dpp-Bian)EuII(bipy)2 (9). In contrast the reaction of related ytterbium complex (dpp-Bian)YbII(dme)2 (4) with bipy in dme proceeds with the electron transfer from the metal to bipy and results in (dpp-Bian)YbIII(bipy)(bipy-̇) (10) - ytterbium(III) derivative containing both neutral and radical-anionic bipy ligands. Noteworthy, in both cases dianionic dpp-Bian ligands retain its reduction state. The ligand-centered redox-process occurs when complex 3 reacts with N,N'-bis[2,4,6-trimethylphenyl]-1,4-diaza-1,3-butadiene (mes-dad). The reaction product (dpp-Bian)EuII(mes-dad)(dme) (11) consists of two different redox-active ligands both in the radical-anionic state. The reduction of 3,6-di-tert-butyl-4-(3,6-di-tert-butyl-2-ethoxyphenoxy)-2-ethoxycyclohexa-2,5-dienone (the dimer of 2-ethoxy-3,6-di-tert-butylphenoxy radical) with (dpp-Bian)EuII(dme)2 (3) caused oxidation of the dpp-Bian ligand to radical-anion to afford (dpp-Bian)(ArO)EuII(dme) (ArO = OC6H2-3,6-tBu2-2-OEt) (12). The molecular structures of complexes 9-12 have been established by the single crystal X-ray analysis. The magnetic behavior of newly prepared compounds has been investigated by the SQUID technique in the range 2-310 K. The isotropic exchange model has been adopted to describe quantitatively the magnetic properties of the exchange-coupled europium(II) complexes (11 and 12). The best-fit isotropic exchange parameters are in good agreement with their density functional theory-computed counterparts.
Collapse
Affiliation(s)
- Igor L Fedushkin
- G.A. Razuvaev Institute of Organometallic Chemistry of the Russian Academy of Sciences , Tropinina Street 49, Nizhny Novgorod 603137, Russian Federation.,Koz'ma Minin Nizhny Novgorod State Pedagogical University , Ul'yanova Street 1, Nizhny Novgorod, 603002, Russian Federation
| | - Dmitriy S Yambulatov
- G.A. Razuvaev Institute of Organometallic Chemistry of the Russian Academy of Sciences , Tropinina Street 49, Nizhny Novgorod 603137, Russian Federation
| | - Alexandra A Skatova
- G.A. Razuvaev Institute of Organometallic Chemistry of the Russian Academy of Sciences , Tropinina Street 49, Nizhny Novgorod 603137, Russian Federation
| | - Evgeny V Baranov
- G.A. Razuvaev Institute of Organometallic Chemistry of the Russian Academy of Sciences , Tropinina Street 49, Nizhny Novgorod 603137, Russian Federation
| | - Serhiy Demeshko
- Institut für Anorganische Chemie, Universität Göttingen , Tammannstrasse 4, 37077 Göttingen, Germany
| | - Artem S Bogomyakov
- International Tomography Center, Siberian Branch of the Russian Academy of Sciences , Institutskaya Street 3a, Novosibirsk 630090, Russian Federation
| | - Victor I Ovcharenko
- International Tomography Center, Siberian Branch of the Russian Academy of Sciences , Institutskaya Street 3a, Novosibirsk 630090, Russian Federation
| | - Ekaterina M Zueva
- A. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Centre of the Russian Academy of Sciences , Arbuzov Street 8, Kazan 420088, Russian Federation.,Kazan Federal University , Kremlyovskaya Street 18, Kazan 420008, Russian Federation
| |
Collapse
|
18
|
Kolanji K, Ravat P, Bogomyakov AS, Ovcharenko VI, Schollmeyer D, Baumgarten M. Mixed Phenyl and Thiophene Oligomers for Bridging Nitronyl Nitroxides. J Org Chem 2017; 82:7764-7773. [PMID: 28664730 DOI: 10.1021/acs.joc.7b00435] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The synthesis of four nitronyl nitroxide (NN) biradicals is described which are conjugatively linked through p-ter-phenyl (PPP), ter-thiophene (TTT) and alternating phenylene (P) and thiophene (T) units as PTP and TPT. We first utilized Suzuki and Stille coupling reactions through protection and deprotection protocols to synthesize these (NN) biradicals. Single crystals were efficiently grown for radical precursors of 3, 5, 6, PPP-NNSi, PTP-NNSi, and final biradicals of TTT-NN, TPT-NN, and PPP-NN, whose structures and molecular packing were examined by X-ray diffraction studies. As a result, much smaller torsions between the NN and thiophene units (∼10°) in TTT-NN and TPT-NN than for NN and phenyl units (∼29°) in PPP-NN were observed due to smaller hindrance for a five vs a six membered ring. All four biradicals TTT-NN, TPT-NN, PTP-NN, and PPP-NN were investigated by EPR and optical spectroscopy combined with DFT calculations. The magnetic susceptibility was studied by SQUID measurements for TTT-NN and TPT-NN. The intramolecular exchange interactions for TPT-NN and TTT-NN were found in good agreement with the ones calculated by broken symmetry DFT calculations.
Collapse
Affiliation(s)
- Kubandiran Kolanji
- Max Planck Institute for Polymer Research, Ackermannweg 10 , 55128 Mainz, Germany
| | - Prince Ravat
- Max Planck Institute for Polymer Research, Ackermannweg 10 , 55128 Mainz, Germany
| | - Artem S Bogomyakov
- International Tomography Center, Siberian Branch, Russian Academy of Sciences , Institutskaya Str. 3a, 630090 Novosibirsk, Russian Federation
| | - Victor I Ovcharenko
- International Tomography Center, Siberian Branch, Russian Academy of Sciences , Institutskaya Str. 3a, 630090 Novosibirsk, Russian Federation
| | - Dieter Schollmeyer
- Institut fuer Organische Chemie, Universitaet Mainz , Duesbergweg 10-14, 55099, Mainz, Germany
| | - Martin Baumgarten
- Max Planck Institute for Polymer Research, Ackermannweg 10 , 55128 Mainz, Germany
| |
Collapse
|
19
|
Bubnov MP, Teplova IA, Kopylova EA, Kozhanov KA, Bogomyakov AS, Petrova MV, Morozov VA, Ovcharenko VI, Cherkasov VK. Ferromagnetic Coupling in the Heterospin Bis-Catecholato-Manganese(IV) Complex with Pyridine Substituted by Nitronyl-nitroxide. Inorg Chem 2017; 56:2426-2431. [PMID: 28212027 DOI: 10.1021/acs.inorgchem.6b02411] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A new bis(3,6-di-tert-butyl-catecholato)manganese complex with two 4-NIT-Py ligands was synthesized and characterized [4-NIT-Py = pyridine substituted at position 4 with nitronyl-nitroxide radical, 2-(pyridin-4-yl)-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazole-3-oxide-1-oxyl]. X-ray diffraction indicated an octahedral environment of the manganese atom with a trans arrangement of ligands. Bonds lengths in the inner coordination core of the metal and in the chelate cycles that are representative of the charge distribution between the metal and ligands displayed a Mn(IV)(Cat2-)2 charge distribution. Variable-temperature magnetic susceptibility measurements detected intramolecular ferromagnetic coupling between the Mn(IV) S = 3/2 spins and spins of nitronyl-nitroxyls and intermolecular ferromagnetic interactions of spins of adjacent nitronyl-nitroxide fragments in a chain of molecules at low temperatures. The last phenomenon is revealed by short contacts between nitronyl-nitroxide radicals of adjacent complex molecules.
Collapse
Affiliation(s)
- Michael P Bubnov
- G. A. Razuvaev Institute of organometallic chemistry of RAS , 49 Tropinina str., 603950 Nizhniy, Novgorod, Russia
| | - Irina A Teplova
- G. A. Razuvaev Institute of organometallic chemistry of RAS , 49 Tropinina str., 603950 Nizhniy, Novgorod, Russia
| | - Eugenia A Kopylova
- G. A. Razuvaev Institute of organometallic chemistry of RAS , 49 Tropinina str., 603950 Nizhniy, Novgorod, Russia
| | - Konstantin A Kozhanov
- G. A. Razuvaev Institute of organometallic chemistry of RAS , 49 Tropinina str., 603950 Nizhniy, Novgorod, Russia
| | - Artem S Bogomyakov
- International Tomography Center of Siberian Branch of RAS , 3a Institutskaya str., Novosibirsk 630090, Russia
| | - Marina V Petrova
- International Tomography Center of Siberian Branch of RAS , 3a Institutskaya str., Novosibirsk 630090, Russia
| | - Vitaly A Morozov
- International Tomography Center of Siberian Branch of RAS , 3a Institutskaya str., Novosibirsk 630090, Russia
| | - Victor I Ovcharenko
- International Tomography Center of Siberian Branch of RAS , 3a Institutskaya str., Novosibirsk 630090, Russia
| | - Vladimir K Cherkasov
- G. A. Razuvaev Institute of organometallic chemistry of RAS , 49 Tropinina str., 603950 Nizhniy, Novgorod, Russia
| |
Collapse
|
20
|
Barskaya IY, Veber SL, Suturina EA, Sherin PS, Maryunina KY, Artiukhova NA, Tretyakov EV, Sagdeev RZ, Ovcharenko VI, Gritsan NP, Fedin MV. Spin-state-correlated optical properties of copper(ii)–nitroxide based molecular magnets. Dalton Trans 2017; 46:13108-13117. [DOI: 10.1039/c7dt02719b] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Pronounced thermochromism of copper(ii)–nitroxide based molecular magnets is explained.
Collapse
Affiliation(s)
| | - Sergey L. Veber
- International Tomography Center SB RAS
- 630090 Novosibirsk
- Russia
- Novosibirsk State University
- 630090 Novosibirsk
| | | | - Peter S. Sherin
- International Tomography Center SB RAS
- 630090 Novosibirsk
- Russia
- Novosibirsk State University
- 630090 Novosibirsk
| | - Kseniya Yu. Maryunina
- Graduate School of Science and Center for Chiral Science
- Hiroshima University
- Higashi-Hiroshima
- Japan
| | | | | | | | | | - Nina P. Gritsan
- Novosibirsk State University
- 630090 Novosibirsk
- Russia
- Institute of Chemical Kinetics and Combustion SB RAS
- 630090 Novosibirsk
| | - Matvey V. Fedin
- International Tomography Center SB RAS
- 630090 Novosibirsk
- Russia
- Novosibirsk State University
- 630090 Novosibirsk
| |
Collapse
|
21
|
Artem’ev AV, Vysotskaya OV, Oparina LA, Bogomyakov AS, Khutsishvili SS, Sterkhova IV, Ovcharenko VI, Trofimov BA. New heterospin chain-polymers based on Cu(hfac)2 complex with TEMPO derivatives bearing β-(oxy)acrylate moiety: Synthesis, structural and magnetic properties. Polyhedron 2016. [DOI: 10.1016/j.poly.2016.09.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
22
|
Jung J, Guennic BL, Fedin MV, Ovcharenko VI, Calzado CJ. Mechanism of Magnetostructural Transitions in Copper-Nitroxide-Based Switchable Molecular Magnets: Insights from ab Initio Quantum Chemistry Calculations. Inorg Chem 2015; 54:6891-9. [PMID: 26125503 DOI: 10.1021/acs.inorgchem.5b00794] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The gradual magnetostructural transition in breathing crystals based on copper(II) and pyrazolyl-substituted nitronyl nitroxides has been analyzed by means of DDCI quantum chemistry calculations. The magnetic coupling constants (J) within the spin triads of Cu(hfac)2L(Bu)·0.5C8H18 have been evaluated for the X-ray structures reported at different temperatures. The coupling is strongly antiferromagnetic at low temperature and becomes ferromagnetic when the temperature increases. The intercluster magnetic coupling (J') is antiferromagnetic and shows a marked dependence on temperature. The magnetostructural transition can be reproduced using the calculated J values for each structure in the simulation of the magnetic susceptibility. However, the μ(T) curve can be improved nicely by considering the coexistence of two phases in the transition region, whose ratio varies with temperature corresponding to both the weakly and strongly coupled spin states. These results complement a recent VT-FTIR study on the parent Cu(hfac)2L(Pr) compound with a gradual magnetostructural transition.
Collapse
Affiliation(s)
- Julie Jung
- †Departamento de Química Física, Universidad de Sevilla, Sevilla, Spain.,‡Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS, Université de Rennes 1, 263 Avenue du Général Leclerc, 35042 Cedex Rennes, France
| | - Boris Le Guennic
- ‡Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS, Université de Rennes 1, 263 Avenue du Général Leclerc, 35042 Cedex Rennes, France
| | - Matvey V Fedin
- §International Tomography Center, Siberian Branch of Russian Academy of Science and Novosibirsk State University, 630090 Novosibirsk, Russia
| | - Victor I Ovcharenko
- §International Tomography Center, Siberian Branch of Russian Academy of Science and Novosibirsk State University, 630090 Novosibirsk, Russia
| | - Carmen J Calzado
- †Departamento de Química Física, Universidad de Sevilla, Sevilla, Spain
| |
Collapse
|
23
|
Pushkarevsky NA, Semenov NA, Dmitriev AA, Kuratieva NV, Bogomyakov AS, Irtegova IG, Vasilieva NV, Bode BE, Gritsan NP, Konstantinova LS, Woollins JD, Rakitin OA, Konchenko SN, Ovcharenko VI, Zibarev AV. Synthesis and Properties of the Heterospin (S1 = S2 = 1/2) Radical-Ion Salt Bis(mesitylene)molybdenum(I) [1,2,5]Thiadiazolo[3,4-c][1,2,5]thiadiazolidyl. Inorg Chem 2015; 54:7007-13. [DOI: 10.1021/acs.inorgchem.5b01033] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | | | | | | | | | | | - Bela E. Bode
- EaStCHEM School of Chemistry and Centre of Magnetic Resonance, University of St. Andrews, St. Andrews, Fife KY16 9ST, United Kingdom
| | | | | | - J. Derek Woollins
- EaStCHEM School of Chemistry and Centre of Magnetic Resonance, University of St. Andrews, St. Andrews, Fife KY16 9ST, United Kingdom
| | - Oleg A. Rakitin
- Institute
of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russia
| | | | | | - Andrey V. Zibarev
- Department of Chemistry, Tomsk State University, 634050 Tomsk, Russia
| |
Collapse
|
24
|
Vologzhanina AV, Belov AS, Novikov VV, Dolganov AV, Romanenko GV, Ovcharenko VI, Korlyukov AA, Buzin MI, Voloshin YZ. Synthesis and Temperature-Induced Structural Phase and Spin Transitions in Hexadecylboron-Capped Cobalt(II) Hexachloroclathrochelate and Its Diamagnetic Iron(II)-Encapsulating Analogue. Inorg Chem 2015; 54:5827-38. [DOI: 10.1021/acs.inorgchem.5b00546] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Anna V. Vologzhanina
- Nesmeyanov
Institute of Organoelement Compounds, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Alexander S. Belov
- Nesmeyanov
Institute of Organoelement Compounds, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Valentin V. Novikov
- Nesmeyanov
Institute of Organoelement Compounds, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Alexander V. Dolganov
- Nesmeyanov
Institute of Organoelement Compounds, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Galina V. Romanenko
- International Tomography
Center, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia
| | - Victor I. Ovcharenko
- International Tomography
Center, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia
| | - Alexander A. Korlyukov
- Nesmeyanov
Institute of Organoelement Compounds, Russian Academy of Sciences, 119991 Moscow, Russia
- Pirogov Russian National Research Medical University, 117997 Moscow, Russia
| | - Mikhail I. Buzin
- Nesmeyanov
Institute of Organoelement Compounds, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Yan Z. Voloshin
- Nesmeyanov
Institute of Organoelement Compounds, Russian Academy of Sciences, 119991 Moscow, Russia
| |
Collapse
|
25
|
Fedin MV, Veber SL, Bagryanskaya EG, Ovcharenko VI. Electron paramagnetic resonance of switchable copper-nitroxide-based molecular magnets: An indispensable tool for intriguing systems. Coord Chem Rev 2015. [DOI: 10.1016/j.ccr.2014.11.015] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
26
|
Veber SL, Suturina EA, Fedin MV, Boldyrev KN, Maryunina KY, Sagdeev RZ, Ovcharenko VI, Gritsan NP, Bagryanskaya EG. FTIR Study of Thermally Induced Magnetostructural Transitions in Breathing Crystals. Inorg Chem 2015; 54:3446-55. [DOI: 10.1021/ic5031153] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | | | | | | | - Renad Z. Sagdeev
- Kazan (Volga Region) Federal University, Kremlevskaya St. 18, 420008 Kazan, Russia
| | | | | | | |
Collapse
|
27
|
Shundrin LA, Irtegova IG, Vasilieva NV, Tretyakov EV, Zueva EM, Ovcharenko VI. One-electron electrochemical oxidation and reduction of the first C(sp2)-coupled nitronyl nitroxide diradical. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.01.134] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
28
|
Fedin MV, Veber SL, Bagryanskaya EG, Romanenko GV, Ovcharenko VI. Spatial distribution of phases during gradual magnetostructural transitions in copper(ii)–nitroxide based molecular magnets. Dalton Trans 2015; 44:18823-30. [DOI: 10.1039/c5dt03441h] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A thorough analysis of EPR and XRD data led to conclusions on the spatial distribution of phases in copper–nitroxide molecular magnets.
Collapse
Affiliation(s)
- Matvey V. Fedin
- International Tomography Center SB RAS
- Novosibirsk
- Russia
- Novosibirsk State University
- Novosibirsk
| | - Sergey L. Veber
- International Tomography Center SB RAS
- Novosibirsk
- Russia
- Novosibirsk State University
- Novosibirsk
| | - Elena G. Bagryanskaya
- Novosibirsk State University
- Novosibirsk
- Russia
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry SB RAS
- Novosibirsk
| | | | | |
Collapse
|
29
|
Tretyakov EV, Romanenko GV, Veber SL, Fedin MV, Polushkin AV, Tkacheva AO, Ovcharenko VI. Cu(hfac)2 Complexes with Nitronyl Ketones Structurally Mimicking Nitronyl Nitroxides in Breathing Crystals. Aust J Chem 2015. [DOI: 10.1071/ch14422] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Breathing crystals based on polymer-chain complexes of Cu(hfac)2 (hfac = hexafluoroacetylacetonate) with nitronyl nitroxides represent a new type of molecular magnetic sensors, exhibiting thermally and light-induced structural rearrangements in the spin clusters Cu ← (O∸N<)n accompanied by magnetic anomalies. To shed light on the driving forces of the rearrangements a method for the synthesis of sterically hindered 4-oxo-3,4-dihydro-2H-pyrrole-N-oxides (nitronyl ketones) structurally mimicking nitronyl nitroxides in breathing crystals has been determined. This method employs palladium-catalyzed cross-coupling of 3,3,4-trimethyl-4-nitropentanoic acid chloride with 4-stannylpyrazoles, leading to the formation of nitroketones followed by soft reduction into hydroxylamines, that then undergo self-initiated cyclization into the corresponding nitrones. The radical oxidation of the latter finally yields the target nitronyl ketones. An X-ray diffraction analysis of the nitronyl ketones confirms that their structural characteristics are close to those of the corresponding nitronyl nitroxides. Moreover, upon reaction with Cu(hfac)2, diamagnetic nitronyl ketones form polymer-chain complexes with a ‘head-to-tail’ motif and a structure similar to their analogues containing paramagnetic nitronyl nitroxides. Finally, it has been found that one of the complexes with nitronyl ketones does manifest a purely structural phase transition similar to its copper-nitroxide analogue, but at the same time it does not manifest any signs of a magneto-structural transition characteristic for breathing crystals where a Jahn–Teller axis in the coordination units CuNO4(O∸N<) is flipped. This observation strongly confirms the crucial role of the exchange interactions between spins of copper and nitroxide for the origin of magneto-structural anomalies in breathing crystals.
Collapse
|
30
|
Kaszub W, Marino A, Lorenc M, Collet E, Bagryanskaya EG, Tretyakov EV, Ovcharenko VI, Fedin MV. Ultrafast Photoswitching in a Copper-Nitroxide-Based Molecular Magnet. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201403672] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
31
|
Kaszub W, Marino A, Lorenc M, Collet E, Bagryanskaya EG, Tretyakov EV, Ovcharenko VI, Fedin MV. Ultrafast Photoswitching in a Copper-Nitroxide-Based Molecular Magnet. Angew Chem Int Ed Engl 2014; 53:10636-40. [PMID: 25138683 DOI: 10.1002/anie.201403672] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Revised: 06/03/2014] [Indexed: 11/09/2022]
Affiliation(s)
- Wawrzyniec Kaszub
- Institut de Physique de Rennes, UMR UR1- CNRS 6251, Universite Rennes 1, 35042 Rennes cedex (France)
| | | | | | | | | | | | | | | |
Collapse
|
32
|
Barskaya IY, Tretyakov EV, Sagdeev RZ, Ovcharenko VI, Bagryanskaya EG, Maryunina KY, Takui T, Sato K, Fedin MV. Photoswitching of a Thermally Unswitchable Molecular Magnet Cu(hfac)2Li-Pr Evidenced by Steady-State and Time-Resolved Electron Paramagnetic Resonance. J Am Chem Soc 2014; 136:10132-8. [DOI: 10.1021/ja504774q] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Irina Yu. Barskaya
- International Tomography Center SB RAS, Institutskaya str. 3a, 630090 Novosibirsk, Russia
- Novosibirsk State University, Pirogova
str.2, 630090 Novosibirsk, Russia
| | - Evgeny V. Tretyakov
- International Tomography Center SB RAS, Institutskaya str. 3a, 630090 Novosibirsk, Russia
| | - Renad Z. Sagdeev
- International Tomography Center SB RAS, Institutskaya str. 3a, 630090 Novosibirsk, Russia
- Kazan (Volga Region) Federal University, Kremlevskaya St. 18, 420008 Kazan, Russia
| | - Victor I. Ovcharenko
- International Tomography Center SB RAS, Institutskaya str. 3a, 630090 Novosibirsk, Russia
| | - Elena G. Bagryanskaya
- International Tomography Center SB RAS, Institutskaya str. 3a, 630090 Novosibirsk, Russia
- Novosibirsk State University, Pirogova
str.2, 630090 Novosibirsk, Russia
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry SB RAS, Pr. Lavrentjeva 16, 630090 Novosibirsk, Russia
| | - Kseniya Yu. Maryunina
- International Tomography Center SB RAS, Institutskaya str. 3a, 630090 Novosibirsk, Russia
- Department
of Chemistry, Graduate School of Science, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
| | - Takeji Takui
- Department
of Chemistry and Molecular Materials Science, Graduate School of Science, Osaka City University, Osaka 558-8585, Japan
- FIRST-Quantum Information Processing Project, JSPS, Tokyo 101-8430, Japan
| | - Kazunobu Sato
- Department
of Chemistry and Molecular Materials Science, Graduate School of Science, Osaka City University, Osaka 558-8585, Japan
- FIRST-Quantum Information Processing Project, JSPS, Tokyo 101-8430, Japan
| | - Matvey V. Fedin
- International Tomography Center SB RAS, Institutskaya str. 3a, 630090 Novosibirsk, Russia
- Novosibirsk State University, Pirogova
str.2, 630090 Novosibirsk, Russia
| |
Collapse
|
33
|
Makarov AY, Chulanova EA, Semenov NA, Pushkarevsky NA, Lonchakov AV, Bogomyakov AS, Irtegova IG, Vasilieva NV, Lork E, Gritsan NP, Konchenko SN, Ovcharenko VI, Zibarev AV. A novel sulfur–nitrogen π-heterocyclic radical anion, (6H-1,2,3-benzodithiazol-6-ylidene)malononitrilidyl, and its homo- and heterospin salts. Polyhedron 2014. [DOI: 10.1016/j.poly.2014.01.027] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
34
|
Ivakhnenko EP, Starikov AG, Lyssenko KA, Ovcharenko VI, Bogomyakov AS, Veber SL, Minkin VI. A biradical chelate Zn(II) complex with phenoxazin-1-one ligands. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2013.10.031] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
35
|
Furui T, Suzuki S, Kozaki M, Shiomi D, Sato K, Takui T, Okada K, Tretyakov EV, Tolstikov SE, Romanenko GV, Ovcharenko VI. Preparation and Magnetic Properties of Metal-Complexes from N-t-Butyl-N-oxidanyl-2-amino-(nitronyl nitroxide). Inorg Chem 2013; 53:802-9. [PMID: 24364815 DOI: 10.1021/ic4020898] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Takanori Furui
- Department of Chemistry, Graduate
School of Science, Osaka City University, Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - Shuichi Suzuki
- Department of Chemistry, Graduate
School of Science, Osaka City University, Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - Masatoshi Kozaki
- Department of Chemistry, Graduate
School of Science, Osaka City University, Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - Daisuke Shiomi
- Department of Chemistry, Graduate
School of Science, Osaka City University, Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - Kazunobu Sato
- Department of Chemistry, Graduate
School of Science, Osaka City University, Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - Takeji Takui
- Department of Chemistry, Graduate
School of Science, Osaka City University, Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - Keiji Okada
- Department of Chemistry, Graduate
School of Science, Osaka City University, Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - Evgeny V. Tretyakov
- International Tomography
Center, Siberian Branch of the Russian Academy of Sciences, 3a ul. Institutskaya, 630090 Novosibirsk, Russian Federation
| | - Svyatoslav E. Tolstikov
- International Tomography
Center, Siberian Branch of the Russian Academy of Sciences, 3a ul. Institutskaya, 630090 Novosibirsk, Russian Federation
| | - Galina V. Romanenko
- International Tomography
Center, Siberian Branch of the Russian Academy of Sciences, 3a ul. Institutskaya, 630090 Novosibirsk, Russian Federation
| | - Victor I. Ovcharenko
- International Tomography
Center, Siberian Branch of the Russian Academy of Sciences, 3a ul. Institutskaya, 630090 Novosibirsk, Russian Federation
| |
Collapse
|
36
|
Misochko EY, Korchagin DV, Akimov AV, Masitov AA, Tolstikov SE, Tretyakov EV, Ovcharenko VI. Molecular conformations and magnetic parameters of the compact trimethylenemethane-type triplet diradical. J Phys Chem A 2013; 117:8065-72. [PMID: 23895219 DOI: 10.1021/jp405572n] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The ESR spectrum of compact nitroxide (NO)-substituted nitronyl nitroxide (NN) triplet diradical N-tert-butyl-N-oxidanyl-2-amino-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazole-3-oxide-1-oxyl (1) was recorded in solid argon matrix at 15 K. The zero-field splitting (ZFS) parameters of 1 were derived from the recorded ESR spectrum: |D| = 0.0248 cm(-1) and E = 0.0025 cm(-1). Quantum chemical calculations have been performed using DFT and multiconfigurational ab initio (CAS) methods in order to establish equilibrium geometries of the conformational isomers resulting from twisted conformations of NO and NN moieties. The ZFS parameters of 1 were calculated at these levels of theory to test validity of the calculated structures. The calculation results were analyzed using the measured ZFS parameters and magnetic and structural data from the previous studies (Suzuki, S.; et al. J. Am. Chem. Soc. 2010, 132, 15908; Tretyakov, E. V.; et al. Russ. Chem. Bull. 2011, 60, 2608). It was found that the ab initio method is most successful for accurate predictions of molecular and magnetic parameters. Diradical 1 has only one stable enantiomeric pair in pseudoeclipsed conformations. The two chiral isomers exist in racemic crystals 1 and in solid matrices with molecular parameters close to those attributed to a free molecule. The analysis of the spin density distribution suggests that one unpaired electron occupies NO group at the equilibrium geometry, whereas the torsion of NO group governs the spin density distribution of the second unpaired electron on a conjugated fragment in NN group. The increase in planarity by torsion of NO group enhances the trimethylenemethane-type properties and, therefore, gives rise to larger ferromagnetic exchange interaction. More planar equilibrium geometry and greater (three times) exchange interaction constant J were predicted for hypothetical diradical 1a, where bulky tert-butyl group is replaced by a methyl group in the nitroxide fragment.
Collapse
Affiliation(s)
- Eugenii Ya Misochko
- Institute of Problems of Chemical Physics, Russian Academy of Sciences, 142432 Chernogolovka, Moscow Region, Russian Federation.
| | | | | | | | | | | | | |
Collapse
|
37
|
Drozdyuk IY, Tolstikov SE, Tretyakov EV, Veber SL, Ovcharenko VI, Sagdeev RZ, Bagryanskaya EG, Fedin MV. Light-Induced Magnetostructural Anomalies in a Polymer Chain Complex of Cu(hfac)2 with tert-Butylpyrazolylnitroxides. J Phys Chem A 2013; 117:6483-8. [DOI: 10.1021/jp403977n] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Irina Yu. Drozdyuk
- International Tomography Center SB RAS, Institutskaya Street 3a, 630090 Novosibirsk,
Russia
| | | | - Evgeny V. Tretyakov
- International Tomography Center SB RAS, Institutskaya Street 3a, 630090 Novosibirsk,
Russia
| | - Sergey L. Veber
- International Tomography Center SB RAS, Institutskaya Street 3a, 630090 Novosibirsk,
Russia
| | - Victor I. Ovcharenko
- International Tomography Center SB RAS, Institutskaya Street 3a, 630090 Novosibirsk,
Russia
| | - Renad Z. Sagdeev
- International Tomography Center SB RAS, Institutskaya Street 3a, 630090 Novosibirsk,
Russia
| | - Elena G. Bagryanskaya
- International Tomography Center SB RAS, Institutskaya Street 3a, 630090 Novosibirsk,
Russia
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry SB RAS, Pr.
Lavrentjeva 9, 630090 Novosibirsk,
Russia
| | - Matvey V. Fedin
- International Tomography Center SB RAS, Institutskaya Street 3a, 630090 Novosibirsk,
Russia
| |
Collapse
|
38
|
Semenov NA, Pushkarevsky NA, Suturina EA, Chulanova EA, Kuratieva NV, Bogomyakov AS, Irtegova IG, Vasilieva NV, Konstantinova LS, Gritsan NP, Rakitin OA, Ovcharenko VI, Konchenko SN, Zibarev AV. Bis(toluene)chromium(I) [1,2,5]Thiadiazolo[3,4-c][1,2,5]thiadiazolidyl and [1,2,5]Thiadiazolo[3,4-b]pyrazinidyl: New Heterospin (S1 = S2 = 1/2) Radical-Ion Salts. Inorg Chem 2013; 52:6654-63. [DOI: 10.1021/ic400659q] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Oleg A. Rakitin
- Institute of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russia
| | | | | | | |
Collapse
|
39
|
Drozdyuk IY, Maryunina KY, Sagdeev RZ, Ovcharenko VI, Bagryanskaya EG, Fedin MV. Topology of exchange interactions in copper-nitroxide based molecular magnets studied by EPR. Mol Phys 2013. [DOI: 10.1080/00268976.2013.793848] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
40
|
Veber SL, Fedin MV, Maryunina KY, Boldyrev KN, Sheglov MA, Kubarev VV, Shevchenko OA, Vinokurov NA, Kulipanov GN, Sagdeev RZ, Ovcharenko VI, Bagryanskaya EG. Influence of Intense THz Radiation on Spin State of Photoswitchable Compound Cu(hfac)2LPr. J Phys Chem A 2013; 117:1483-91. [DOI: 10.1021/jp311404t] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Sergey L. Veber
- International Tomography Center, SB RAS, 630090 Novosibirsk, Russia
| | - Matvey V. Fedin
- International Tomography Center, SB RAS, 630090 Novosibirsk, Russia
| | | | | | | | - Vitaly V. Kubarev
- Budker Institute of Nuclear Physics, SB RAS, 630090 Novosibirsk, Russia
- Novosibirsk State University, Novosibirsk 630090, Russia
| | | | | | | | - Renad Z. Sagdeev
- International Tomography Center, SB RAS, 630090 Novosibirsk, Russia
| | | | - Elena G. Bagryanskaya
- International Tomography Center, SB RAS, 630090 Novosibirsk, Russia
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, SB RAS,
630090 Novosibirsk, Russia
| |
Collapse
|
41
|
Ovcharenko VI, Fokin SV, Kostina ET, Romanenko GV, Bogomyakov AS, Tretyakov EV. First Example of a Reversible Single-Crystal-to-Single-Crystal Polymerization–Depolymerization Accompanied by a Magnetic Anomaly for a Transition-Metal Complex with an Organic Radical. Inorg Chem 2012; 51:12188-94. [DOI: 10.1021/ic301328x] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Victor I. Ovcharenko
- International
Tomography Center, Russian Academy of
Sciences, 3A Institutskaya Str., 630090 Novosibirsk, Russian Federation
| | - Sergey V. Fokin
- International
Tomography Center, Russian Academy of
Sciences, 3A Institutskaya Str., 630090 Novosibirsk, Russian Federation
| | - Elvina T. Kostina
- International
Tomography Center, Russian Academy of
Sciences, 3A Institutskaya Str., 630090 Novosibirsk, Russian Federation
| | - Galina V. Romanenko
- International
Tomography Center, Russian Academy of
Sciences, 3A Institutskaya Str., 630090 Novosibirsk, Russian Federation
| | - Artem S. Bogomyakov
- International
Tomography Center, Russian Academy of
Sciences, 3A Institutskaya Str., 630090 Novosibirsk, Russian Federation
| | - Eugene V. Tretyakov
- International
Tomography Center, Russian Academy of
Sciences, 3A Institutskaya Str., 630090 Novosibirsk, Russian Federation
| |
Collapse
|
42
|
Fedin MV, Bagryanskaya EG, Matsuoka H, Yamauchi S, Veber SL, Maryunina KY, Tretyakov EV, Ovcharenko VI, Sagdeev RZ. W-Band Time-Resolved Electron Paramagnetic Resonance Study of Light-Induced Spin Dynamics in Copper–Nitroxide-Based Switchable Molecular Magnets. J Am Chem Soc 2012; 134:16319-26. [DOI: 10.1021/ja306467e] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Matvey V. Fedin
- International Tomography Center SB RAS, Institutskaya str. 3a, 630090 Novosibirsk,
Russia
| | - Elena G. Bagryanskaya
- International Tomography Center SB RAS, Institutskaya str. 3a, 630090 Novosibirsk,
Russia
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry SB RAS, Pr. Lavrentjeva
9, 630090 Novosibirsk, Russia
| | - Hideto Matsuoka
- Institute of Multidisciplinary
Research for Advanced Materials, Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai 980-8577, Japan
| | - Seigo Yamauchi
- Institute of Multidisciplinary
Research for Advanced Materials, Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai 980-8577, Japan
| | - Sergey L. Veber
- International Tomography Center SB RAS, Institutskaya str. 3a, 630090 Novosibirsk,
Russia
| | - Ksenia Yu. Maryunina
- International Tomography Center SB RAS, Institutskaya str. 3a, 630090 Novosibirsk,
Russia
| | - Evgeny V. Tretyakov
- International Tomography Center SB RAS, Institutskaya str. 3a, 630090 Novosibirsk,
Russia
| | - Victor I. Ovcharenko
- International Tomography Center SB RAS, Institutskaya str. 3a, 630090 Novosibirsk,
Russia
| | - Renad Z. Sagdeev
- International Tomography Center SB RAS, Institutskaya str. 3a, 630090 Novosibirsk,
Russia
| |
Collapse
|
43
|
Tretyakov EV, Tolstikov SE, Suvorova AO, Polushkin AV, Romanenko GV, Bogomyakov AS, Veber SL, Fedin MV, Stass DV, Reijerse E, Lubitz W, Zueva EM, Ovcharenko VI. Crucial Role of Paramagnetic Ligands for Magnetostructural Anomalies in “Breathing Crystals”. Inorg Chem 2012; 51:9385-94. [DOI: 10.1021/ic301149e] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | | | | | | | | | | | | | | | | | - Edward Reijerse
- Max-Planck-Institut für chemische Energiekonversion, 45470 Mülheim/Ruhr,
Germany
| | - Wolfgang Lubitz
- Max-Planck-Institut für chemische Energiekonversion, 45470 Mülheim/Ruhr,
Germany
| | - Ekaterina M. Zueva
- Department of Inorganic
Chemistry, Kazan State Technological University, 68 K. Marx Street,
420015 Kazan, Russian Federation
| | | |
Collapse
|
44
|
Fedin MV, Maryunina KY, Sagdeev RZ, Ovcharenko VI, Bagryanskaya EG. Self-Decelerating Relaxation of the Light-Induced Spin States in Molecular Magnets Cu(hfac)2LR Studied by Electron Paramagnetic Resonance. Inorg Chem 2011; 51:709-17. [DOI: 10.1021/ic202248v] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Matvey V. Fedin
- International Tomography Center SB RAS, Institutskaya
str. 3a, 630090, Novosibirsk, Russia
| | - Ksenia Yu. Maryunina
- International Tomography Center SB RAS, Institutskaya
str. 3a, 630090, Novosibirsk, Russia
| | - Renad Z. Sagdeev
- International Tomography Center SB RAS, Institutskaya
str. 3a, 630090, Novosibirsk, Russia
| | - Victor I. Ovcharenko
- International Tomography Center SB RAS, Institutskaya
str. 3a, 630090, Novosibirsk, Russia
| | - Elena G. Bagryanskaya
- International Tomography Center SB RAS, Institutskaya
str. 3a, 630090, Novosibirsk, Russia
| |
Collapse
|
45
|
Tretyakov EV, Tolstikov SE, Romanenko GV, Bogomyakov AS, Stass DV, Kadirov MK, Holin KV, Sinyashin OG, Ovcharenko VI. Synthesis, structure, and magnetic properties of 2,2′-(buta-1,3-diyne-1,4-diyl)bis(4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazole 3-oxide 1-oxyl). Polyhedron 2011. [DOI: 10.1016/j.poly.2011.04.032] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
46
|
Veber SL, Fedin MV, Maryunina KY, Potapov A, Goldfarb D, Reijerse E, Lubitz W, Sagdeev RZ, Ovcharenko VI, Bagryanskaya EG. Temperature-Dependent Exchange Interaction in Molecular Magnets Cu(hfac)2LR Studied by EPR: Methodology and Interpretations. Inorg Chem 2011; 50:10204-12. [DOI: 10.1021/ic2011869] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sergey L. Veber
- International Tomography Center SB RAS, 630090 Novosibirsk, Russia
| | - Matvey V. Fedin
- International Tomography Center SB RAS, 630090 Novosibirsk, Russia
| | | | - Alexey Potapov
- Department of Chemical Physics, The Weizmann Institute of Science, 76100 Rehovot, Israel
| | - Daniella Goldfarb
- Department of Chemical Physics, The Weizmann Institute of Science, 76100 Rehovot, Israel
| | - Edward Reijerse
- Max-Planck-Institut für Bioanorganische Chemie, 45470 Mülheim/Ruhr, Germany
| | - Wolfgang Lubitz
- Max-Planck-Institut für Bioanorganische Chemie, 45470 Mülheim/Ruhr, Germany
| | - Renad Z. Sagdeev
- International Tomography Center SB RAS, 630090 Novosibirsk, Russia
| | | | | |
Collapse
|
47
|
Polunin RA, Kolotilov SV, Kiskin MA, Cador O, Golhen S, Shvets OV, Ouahab L, Dobrokhotova ZV, Ovcharenko VI, Eremenko IL, Novotortsev VM, Pavlishchuk VV. Structural Flexibility and Sorption Properties of 2D Porous Coordination Polymers Constructed from Trinuclear Heterometallic Pivalates and 4,4′-Bipyridine. Eur J Inorg Chem 2011. [DOI: 10.1002/ejic.201100791] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
48
|
Romanenko GV, Maryunina KY, Bogomyakov AS, Sagdeev RZ, Ovcharenko VI. Relationship between the Thermally Induced Reorientations of Aromatic Solvate Molecules in Cu(hfac)2–Nitroxide Breathing Crystals and the Character of the Magnetic Anomaly. Inorg Chem 2011; 50:6597-609. [DOI: 10.1021/ic200444e] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Galina V. Romanenko
- International Tomography Center, Siberian Branch of the Russian Academy of Sciences, 3A Institutskaya Street, 630090 Novosibirsk, Russia
| | - Ksenia Yu. Maryunina
- International Tomography Center, Siberian Branch of the Russian Academy of Sciences, 3A Institutskaya Street, 630090 Novosibirsk, Russia
| | - Artem S. Bogomyakov
- International Tomography Center, Siberian Branch of the Russian Academy of Sciences, 3A Institutskaya Street, 630090 Novosibirsk, Russia
| | - Renad Z. Sagdeev
- International Tomography Center, Siberian Branch of the Russian Academy of Sciences, 3A Institutskaya Street, 630090 Novosibirsk, Russia
| | - Victor I. Ovcharenko
- International Tomography Center, Siberian Branch of the Russian Academy of Sciences, 3A Institutskaya Street, 630090 Novosibirsk, Russia
| |
Collapse
|
49
|
Ovcharenko VI, Fokin SV, Fursova EY, Kuznetsova OV, Tretyakov EV, Romanenko GV, Bogomyakov AS. “Jumping Crystals”: Oxygen-Evolving Metal-Nitroxide Complexes. Inorg Chem 2011; 50:4307-12. [DOI: 10.1021/ic1022483] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Victor I. Ovcharenko
- International Tomography Center, Russian Academy of Sciences, 3A Institutskaya Street, 630090 Novosibirsk, Russian Federation
| | - Sergei V. Fokin
- International Tomography Center, Russian Academy of Sciences, 3A Institutskaya Street, 630090 Novosibirsk, Russian Federation
| | - Elena Yu. Fursova
- International Tomography Center, Russian Academy of Sciences, 3A Institutskaya Street, 630090 Novosibirsk, Russian Federation
| | - Olga V. Kuznetsova
- International Tomography Center, Russian Academy of Sciences, 3A Institutskaya Street, 630090 Novosibirsk, Russian Federation
| | - Eugene V. Tretyakov
- International Tomography Center, Russian Academy of Sciences, 3A Institutskaya Street, 630090 Novosibirsk, Russian Federation
| | - Galina V. Romanenko
- International Tomography Center, Russian Academy of Sciences, 3A Institutskaya Street, 630090 Novosibirsk, Russian Federation
| | - Artem S. Bogomyakov
- International Tomography Center, Russian Academy of Sciences, 3A Institutskaya Street, 630090 Novosibirsk, Russian Federation
| |
Collapse
|
50
|
Tretyakov EV, Utepova IA, Varaksin MV, Tolstikov SE, Romanenko GV, Bogomyakov AS, Stass DV, Ovcharenko VI, Chupakhin ON. New approach to synthesis of nitronyl and imino nitroxides based on SNH methodology. ARKIVOC 2011. [DOI: 10.3998/ark.5550190.0012.806] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
|