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Khrizanforova VV, Fayzullin RR, Gerasimova TP, Khrizanforov MN, Zagidullin AA, Islamov DR, Lukoyanov AN, Budnikova YH. Chemical and Electrochemical Reductions of Monoiminoacenaphthenes. Int J Mol Sci 2023; 24:ijms24108667. [PMID: 37240012 DOI: 10.3390/ijms24108667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 05/03/2023] [Accepted: 05/10/2023] [Indexed: 05/28/2023] Open
Abstract
Redox properties of monoiminoacenaphthenes (MIANs) were studied using various electrochemical techniques. The potential values obtained were used for calculating the electrochemical gap value and corresponding frontier orbital difference energy. The first-peak-potential reduction of the MIANs was performed. As a result of controlled potential electrolysis, two-electron one-proton addition products were obtained. Additionally, the MIANs were exposed to one-electron chemical reduction by sodium and NaBH4. Structures of three new sodium complexes, three products of electrochemical reduction, and one product of the reduction by NaBH4 were studied using single-crystal X-ray diffraction. The MIANs reduced electrochemically by NaBH4 represent salts, in which the protonated MIAN skeleton acts as an anion and Bu4N+ or Na+ as a cation. In the case of sodium complexes, the anion radicals of MIANs are coordinated with sodium cations into tetranuclear complexes. The photophysical and electrochemical properties of all reduced MIAN products, as well as neutral forms, were studied both experimentally and quantum-chemically.
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Affiliation(s)
- Vera V Khrizanforova
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, 8 Arbuzov Street, 420088 Kazan, Russia
| | - Robert R Fayzullin
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, 8 Arbuzov Street, 420088 Kazan, Russia
| | - Tatiana P Gerasimova
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, 8 Arbuzov Street, 420088 Kazan, Russia
| | - Mikhail N Khrizanforov
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, 8 Arbuzov Street, 420088 Kazan, Russia
- A.M. Butlerov Institute of Chemistry, Kazan Federal University, 18 Kremlevskaya Street, 420008 Kazan, Russia
| | - Almaz A Zagidullin
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, 8 Arbuzov Street, 420088 Kazan, Russia
| | - Daut R Islamov
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, 8 Arbuzov Street, 420088 Kazan, Russia
| | - Anton N Lukoyanov
- G.A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, 49 Tropinin Street, 603137 Nizhny Novgorod, Russia
| | - Yulia H Budnikova
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, 8 Arbuzov Street, 420088 Kazan, Russia
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Pölker J, Schaarschmidt D, Bernauer J, Villa M, Jacobi von Wangelin A. BIAN-Aluminium-Catalysed Imine Hydrogenation. ChemCatChem 2022; 14:e202200144. [PMID: 36032039 PMCID: PMC9401587 DOI: 10.1002/cctc.202200144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 05/07/2022] [Indexed: 11/10/2022]
Abstract
Hydrogenations have been dominated by transition metal catalysis, while the use of more abundant and inexpensive main group metal catalysts has remained a great challenge. Here, a bimetallic Li/Al dihydride was successfully applied to catalytic hydrogenations of imines. The catalyst [(DippBIAN)Al(μ-H)2Li(OEt2)2] was easily prepared from the 2e-reduced BIAN derivative and LiAlH4.
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Affiliation(s)
- Jennifer Pölker
- Dept. of ChemistryUniversity of HamburgMartin Luther King Pl 620146HamburgGermany
| | - Dieter Schaarschmidt
- Dept. of ChemistryUniversity of HamburgMartin Luther King Pl 620146HamburgGermany
- Dept. of ChemistryUniversity of Regensburg93040RegensburgGermany
| | - Josef Bernauer
- Dept. of ChemistryUniversity of HamburgMartin Luther King Pl 620146HamburgGermany
- Dept. of ChemistryUniversity of Regensburg93040RegensburgGermany
| | - Matteo Villa
- Dept. of ChemistryUniversity of Regensburg93040RegensburgGermany
| | - Axel Jacobi von Wangelin
- Dept. of ChemistryUniversity of HamburgMartin Luther King Pl 620146HamburgGermany
- Dept. of ChemistryUniversity of Regensburg93040RegensburgGermany
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Romashev NF, Bakaev IV, Komlyagina VI, Sokolov MN, Gushchin AL. SYNTHESIS AND STRUCTURE OF PALLADACYCLOPENTADIENYL COMPLEX WITH ACENAPHTHENE-1,2-DIIMINE LIGAND. J STRUCT CHEM+ 2022. [DOI: 10.1134/s002247662208011x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Lukoyanov AN, Zvereva YV, Parshina DA, Cherkasov AV, Ketkov SY. Calcium Complexes Bearing Dianionic or Monoanionic Iminoacenaphthen‐1‐one Ligands: Synthesis, Reactions with Alkynes and Catalysis of L‐lactide Polymerization. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202200348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Anton Nicolaevich Lukoyanov
- Institut metalloorganiceskoj himii imeni G A Razuvaeva Rossijskoj akademii nauk Russian Academy of Sceinces Tropinina, 49 603950 Nizhny Novgorod RUSSIAN FEDERATION
| | - Yulia V. Zvereva
- Institut metalloorganičeskoj himii imeni G A Razuvaeva Rossijskoj akademii nauk: FGBUN Institut metalloorganiceskoj himii im G A Razuvaeva Rossijskoj akademii nauk Russian Academy of Sceinces Тропинина 49 603950 Нижний Новгород RUSSIAN FEDERATION
| | - Diana A. Parshina
- Lobachevsky State University of Gorky: Nacional'nyj issledovatel'skij Nizegorodskij gosudarstvennyj universitet imeni N I Lobacevskogo Ministry of Educatuin and Higher Education of the Russian Federation Gagarina, 23 603022 Нижний Новгород RUSSIAN FEDERATION
| | - Anton V. Cherkasov
- Institut metalloorganičeskoj himii imeni G A Razuvaeva Rossijskoj akademii nauk: FGBUN Institut metalloorganiceskoj himii im G A Razuvaeva Rossijskoj akademii nauk Russian Academy of Sceinces Тропинина 49 603950 Нижний Новгород RUSSIAN FEDERATION
| | - Sergey Yu. Ketkov
- Institut metalloorganičeskoj himii imeni G A Razuvaeva Rossijskoj akademii nauk: FGBUN Institut metalloorganiceskoj himii im G A Razuvaeva Rossijskoj akademii nauk Russian Academy of Sceinces Тропинина 49 603950 Нижний Новгород RUSSIAN FEDERATION
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Romashev NF, Mirzaeva IV, Bakaev IV, Komlyagina VI, Komarov VY, Fomenko IS, Gushchin AL. STRUCTURE OF A BINUCLEAR RHODIUM(I) COMPLEX WITH THE ACENAPHTHENE- 1,2-DIIMINE LIGAND. J STRUCT CHEM+ 2022. [DOI: 10.1134/s0022476622020056] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Novel Oxidovanadium Complexes with Redox-Active R-Mian and R-Bian Ligands: Synthesis, Structure, Redox and Catalytic Properties. Molecules 2021; 26:molecules26185706. [PMID: 34577177 PMCID: PMC8465707 DOI: 10.3390/molecules26185706] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 09/15/2021] [Accepted: 09/17/2021] [Indexed: 11/19/2022] Open
Abstract
A new monoiminoacenaphthenone 3,5-(CF3)2C6H3-mian (complex 2) was synthesized and further exploited, along with the already known monoiminoacenaphthenone dpp-mian, to obtain oxidovanadium(IV) complexes [VOCl2(dpp-mian)(CH3CN)] (3) and [VOCl(3,5-(CF3)2C6H3-bian)(H2O)][VOCl3(3,5-(CF3)2C6H3-bian)]·2.85DME (4) from [VOCl2(CH3CN)2(H2O)] (1) or [VCl3(THF)3]. The structure of all compounds was determined using X-ray structural analysis. The vanadium atom in these structures has an octahedral coordination environment. Complex 4 has an unexpected structure. Firstly, it contains 3,5-(CF3)2C6H3-bian instead of 3,5-(CF3)2C6H3-mian. Secondly, it has a binuclear structure, in contrast to 3, in which two oxovanadium parts are linked to each other through V=O···V interaction. This interaction is non-covalent in origin, according to DFT calculations. In structures 2 and 3, non-covalent π-π staking interactions between acenaphthene moieties of the neighboring molecules (distances are 3.36–3.40 Å) with an estimated energy of 3 kcal/mol were also found. The redox properties of the obtained compounds were studied using cyclic voltammetry in solution. In all cases, the reduction processes initiated by the redox-active nature of the mian or bian ligand were identified. The paramagnetic nature of complexes 3 and 4 has been proven by EPR spectroscopy. Complexes 3 and 4 exhibited high catalytic activity in the oxidation of alkanes and alcohols with peroxides. The yields of products of cyclohexane oxidation were 43% (complex 3) and 27% (complex 4). Based on the data regarding the study of regio- and bond-selectivity, it was concluded that hydroxyl radicals play the most crucial role in the reaction. The initial products in the reactions with alkanes are alkyl hydroperoxides, which are easily reduced to their corresponding alcohols by the action of triphenylphosphine (PPh3). According to the DFT calculations, the difference in the catalytic activity of 3 and 4 is most likely associated with a different mechanism for the generation of ●OH radicals. For complex 4 with electron-withdrawing CF3 substituents at the diimine ligand, an alternative mechanism, different from Fenton’s and involving a redox-active ligand, is assumed.
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Ovcharenko VI, Kuznetsova OV. New method for the synthesis of heterospin metal complexes with nitroxides. RUSSIAN CHEMICAL REVIEWS 2020. [DOI: 10.1070/rcr4981] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Kazakov GG, Druzhkov NO, Cherkasov VK. Iminoquinones and Diimines, N-Hetero Analogues of 9,10-Phenanthrenequinone, in Coordination Chemistry. RUSS J COORD CHEM+ 2020. [DOI: 10.1134/s1070328420030033] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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9
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Romashev NF, Gushchin AL, Fomenko IS, Abramov PA, Mirzaeva IV, Kompan'kov NB, Kal'nyi DB, Sokolov MN. A new organometallic rhodium(I) complex with dpp-bian ligand: Synthesis, structure and redox behaviour. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.114110] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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10
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Rauch M, Roberts RC, Parkin G. Reactivity of [TismPriBenz]MgMe towards secondary amines and terminal alkynes: Catalytic dehydrocoupling with hydrosilanes to afford Si–N and Si–C bonds. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2019.03.015] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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11
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Lukoyanov AN, Ulivanova EA, Razborov DA, Khrizanforova VV, Budnikova YH, Makarov SG, Rumyantcev RV, Ketkov SY, Fedushkin IL. One-Electron Reduction of 2-Mono(2,6-diisopropylphenylimino)acenaphthene-1-one (dpp-mian). Chemistry 2019; 25:3858-3866. [PMID: 30570195 DOI: 10.1002/chem.201805427] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Indexed: 11/06/2022]
Abstract
The electrochemical characteristics of 2-mono(2,6-diisopropylphenylimino)acenaphthene-1-one (dpp-mian) have been investigated. One-electron reduction of dpp-mian involves the iminoketone fragment, which is revealed by the EPR spectrum obtained after the electrolysis of the dpp-mian solution in tetrahydrofuran (THF). The reduction of dpp-mian with one equivalent of metallic potassium leads to a similar EPR spectrum. The sodium complex [(dpp-mian)Na(dme)]2 (1) produces an EPR signal with hyperfine coupling on the nitrogen atom of the iminoketone fragment of the dpp-mian ligand. Dpp-mian can also be reduced in a one-electron process by SnCl2 ×(dioxane). In this case, complex (dpp-mian)2 SnCl2 (2) is formed, with the tin atom displaying an oxidation state of +4. Tin(II) chloride dihydrate, SnCl2 ×2(H2 O), also reduces dpp-mian, but the two ligands bound to tin in the product form a new carbon-carbon bond between the ketone moieties of the dpp-mian monoanions to form complex (bis-dpp-mian)HSnCl3 (3). Metallic tin reduces dpp-mian to form the (bis-dpp-mian)2 Sn (4) species. Compounds 1-4 were characterized by X-ray diffraction.
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Affiliation(s)
- Anton N Lukoyanov
- G. A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, Tropinina, 49, Nizhny Novgorod, 603950, Russian Federation
| | - Elena A Ulivanova
- G. A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, Tropinina, 49, Nizhny Novgorod, 603950, Russian Federation
| | - Danila A Razborov
- G. A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, Tropinina, 49, Nizhny Novgorod, 603950, Russian Federation
| | - Vera V Khrizanforova
- A.E.Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center, Russian Academy of Sciences, Arbuzov, 8, Kazan, 420088, Russian Federation
| | - Yulia H Budnikova
- A.E.Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center, Russian Academy of Sciences, Arbuzov, 8, Kazan, 420088, Russian Federation
| | - Sergey G Makarov
- G. A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, Tropinina, 49, Nizhny Novgorod, 603950, Russian Federation
| | - Roman V Rumyantcev
- G. A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, Tropinina, 49, Nizhny Novgorod, 603950, Russian Federation
| | - Sergey Y Ketkov
- G. A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, Tropinina, 49, Nizhny Novgorod, 603950, Russian Federation
| | - Igor L Fedushkin
- G. A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, Tropinina, 49, Nizhny Novgorod, 603950, Russian Federation
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Zhang W, Dodonov VA, Chen W, Zhao Y, Skatova AA, Fedushkin IL, Roesky PW, Wu B, Yang XJ. Cycloaddition versus Cleavage of the C=S Bond of Isothiocyanates Promoted by Digallane Compounds with Noninnocent α-Diimine Ligands. Chemistry 2018; 24:14994-15002. [PMID: 30016556 DOI: 10.1002/chem.201802469] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 07/02/2018] [Indexed: 11/11/2022]
Abstract
Whereas the chemistry of single-bond activation by compounds of the main group elements has undergone some development in recent years, the cleavage of multiple bonds remains underexplored. Herein, the reactions of two digallanes bearing α-diimine ligands, namely, [L1 Ga-GaL1 ] (1, L1 =dpp-dad=[(2,6-iPr2 C6 H3 )NC(CH3 )]2 ) and [L2 Ga-GaL2 ] (2, L2 =dpp-bian=1,2-[(2,6-iPr2 C6 H3 )NC]2 C10 H6 ), with isothiocyanates are reported. Reactions of 1 or 2 with isothiocyanates in 1:2 molar ratio proceeded with [2+4] cycloaddition of the C=S bond across the C2 N2 Ga metallacycle with formation of C-C and S-Ga single bonds to afford [L1 (RN=C-S)Ga-Ga(S-C=NR)L1 ] (3, R=Me; 4, R=Ph) and [L2 (RN=C-S)Ga-Ga(S-C=NR)L2 ] (8, R=allyl; 9, R=Ph). In the cases of 8 and 9, this cycloaddition is reversible. The digallanes reacted with 2 equiv of PhNCS in the presence of Na metal or at high temperatures through a unique reductive cleavage of the C=S bond to yield the disulfide-bridged digallium species [Na(THF)3 ]2 [L1 Ga(μ-S)2 GaL1 ] (5), [L2 Ga(μ-S)2 GaL2 ] (10), and [Na(DME)3 ][L2 Ga(μ-S)2 GaL2 ] (11). Moreover, products 4 and 5 can further react with an excess of isothiocyanate, through cleavage of the C=S bond or cycloaddition, to give the bis- or mono-S-bridged complexes [Na(THF)2 ]2 [L1 (PhN=C-S)Ga(μ-S)2 Ga(S-C=NPh)L1 ] (6) and [L1 (PhN=C-S)Ga(μ-S)Ga(S-C=NPh)L1 ] (7). All the newly prepared compounds were characterized by elemental analysis, single-crystal X-ray diffraction, IR spectroscopy, NMR (3-9) or ESR spectroscopy (11), and DFT calculations.
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Affiliation(s)
- Wei Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of, the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, 710069, P. R. China
| | - Vladimir A Dodonov
- G. A. Razuvaev Institute of Organometallic Chemistry of, Russian Academy of Sciences, Tropinina str. 49, Nizhny Novgorod, 603137, Russia.,Institute of Inorganic Chemistry, Karlsruhe Institute of Technology, Engesserstrasse 15, 76131, Karlsruhe, Germany
| | - Weixing Chen
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of, the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, 710069, P. R. China
| | - Yanxia Zhao
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of, the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, 710069, P. R. China
| | - Alexandra A Skatova
- G. A. Razuvaev Institute of Organometallic Chemistry of, Russian Academy of Sciences, Tropinina str. 49, Nizhny Novgorod, 603137, Russia
| | - Igor L Fedushkin
- G. A. Razuvaev Institute of Organometallic Chemistry of, Russian Academy of Sciences, Tropinina str. 49, Nizhny Novgorod, 603137, Russia
| | - Peter W Roesky
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology, Engesserstrasse 15, 76131, Karlsruhe, Germany
| | - Biao Wu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of, the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, 710069, P. R. China
| | - Xiao-Juan Yang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of, the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, 710069, P. R. China
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Razborov DA, Lukoyanov AN, Moskalev MV, Baranov EV, Fedyushkin IL. Gallium Complexes with Acenaphthene-1-Imino-2-one: Synthesis and Reactivity. RUSS J COORD CHEM+ 2018. [DOI: 10.1134/s1070328418060040] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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14
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Ovcharenko V, Kuznetsova O, Fursova E, Letyagin G, Romanenko G, Bogomyakov A, Zueva E. Simultaneous Introduction of Two Nitroxides in the Reaction: A New Approach to the Synthesis of Heterospin Complexes. Inorg Chem 2017; 56:14567-14576. [PMID: 29131644 DOI: 10.1021/acs.inorgchem.7b02308] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A new approach to the synthesis of multispin compounds has been developed, namely, the simultaneous introduction of two different stable nitroxides (nitronyl nitroxide and imino nitroxide) in a reaction with a metal ion. An important characteristic of the new method is that nitronyl nitroxide and imino nitroxide introduced in the reaction with the metal are the products of different series; i.e., the nitronyl nitroxide molecule differs from the imino nitroxide molecule not only in one additional oxygen molecule per molecule but also in another substituent in the side chain of the organic paramagnet. This possibility was demonstrated on the synthesis of multispin compounds [Ni2(A1)(L2)2(Piv)(MeOH)], [Ni2(L1)(A2)2(Piv)(H2O)], [Co2(A1)(L2)2(Piv)(MeOH)], and [Co3(L1)2(A2)2(Piv)2], in which Ln and An differ in the substituent in the phenyl ring. The number of multispin compounds that can be synthesized by the proposed method is almost unlimited. The heterospin complexes of transition metals with coordinated nitronyl nitroxide and imino nitroxide in one molecule contain energy-different exchange interaction channels that differ in both magnitude and sign, as confirmed by the quantum-chemical analysis of exchange channels in [Ni(B1)(B2)2](NO3)2. The series of mixed-radical complexes may include compounds with nontrivial magnetic properties such as [Co2(A1)(L2)2(Piv)(MeOH)], which experiences bulk magnetic ordering below 3.5 K.
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Affiliation(s)
- Victor Ovcharenko
- International Tomography Center , Institutskaya Street 3a, Novosibirsk 630090, Russian Federation
| | - Olga Kuznetsova
- International Tomography Center , Institutskaya Street 3a, Novosibirsk 630090, Russian Federation
| | - Elena Fursova
- International Tomography Center , Institutskaya Street 3a, Novosibirsk 630090, Russian Federation
| | - Gleb Letyagin
- International Tomography Center , Institutskaya Street 3a, Novosibirsk 630090, Russian Federation
| | - Galina Romanenko
- International Tomography Center , Institutskaya Street 3a, Novosibirsk 630090, Russian Federation
| | - Artem Bogomyakov
- International Tomography Center , Institutskaya Street 3a, Novosibirsk 630090, Russian Federation
| | - Ekaterina Zueva
- Kazan National Research Technological University , 68 K. Marx Street, Kazan 420015, Russian Federation
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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] [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.
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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
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16
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Moskalev MV, Skatova AA, Chudakova VA, Khvoinova NM, Bazyakina NL, Morozov AG, Kazarina OV, Cherkasov AV, Abakumov GA, Fedushkin IL. Hydroamination of alkynes with aromatic amines catalyzed by digallane (dpp-bian)Ga—Ga(dpp-bian). Russ Chem Bull 2016. [DOI: 10.1007/s11172-015-1234-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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17
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Fedushkin IL, Skatova AA, Dodonov VA, Yang XJ, Chudakova VA, Piskunov AV, Demeshko S, Baranov EV. Ligand “Brackets” for Ga–Ga Bond. Inorg Chem 2016; 55:9047-56. [DOI: 10.1021/acs.inorgchem.6b01514] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Igor L. Fedushkin
- G. A. Razuvaev Institute of Organometallic
Chemistry, Russian Academy of Sciences, Tropinina 49, Nizhny Novgorod 603137, Russian Federation
| | - Alexandra A. Skatova
- G. A. Razuvaev Institute of Organometallic
Chemistry, Russian Academy of Sciences, Tropinina 49, Nizhny Novgorod 603137, Russian Federation
| | - Vladimir A. Dodonov
- G. A. Razuvaev Institute of Organometallic
Chemistry, Russian Academy of Sciences, Tropinina 49, Nizhny Novgorod 603137, Russian Federation
| | - Xiao-Juan Yang
- Key Laboratory of Synthetic and Natural
Functional Molecule Chemistry of the Ministry of Education, College
of Chemistry and Materials Science, Northwest University, Xi’an 710069, China
| | - Valentina A. Chudakova
- G. A. Razuvaev Institute of Organometallic
Chemistry, Russian Academy of Sciences, Tropinina 49, Nizhny Novgorod 603137, Russian Federation
| | - Alexander V. Piskunov
- G. A. Razuvaev Institute of Organometallic
Chemistry, Russian Academy of Sciences, Tropinina 49, Nizhny Novgorod 603137, Russian Federation
| | - Serhiy Demeshko
- Institut
für Anorganische Chemie, Georg-August-Universität, Tammannstrasse 4, Göttingen 37077, Germany
| | - Evgeny V. Baranov
- G. A. Razuvaev Institute of Organometallic
Chemistry, Russian Academy of Sciences, Tropinina 49, Nizhny Novgorod 603137, Russian Federation
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18
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Singha Hazari A, Ray R, Hoque MA, Lahiri GK. Electronic Structure and Multicatalytic Features of Redox-Active Bis(arylimino)acenaphthene (BIAN)-Derived Ruthenium Complexes. Inorg Chem 2016; 55:8160-73. [DOI: 10.1021/acs.inorgchem.6b01280] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Arijit Singha Hazari
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Ritwika Ray
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Md Asmaul Hoque
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Goutam Kumar Lahiri
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
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