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Drius G, Tarroni R, Birchmeier M, Parolin C, Boga C, Monari M, Bordoni S. Unpredictable Dynamic Behaviour of Ruthenium Chelate Pyrrole Derivatives. Molecules 2024; 29:3068. [PMID: 38999019 PMCID: PMC11242957 DOI: 10.3390/molecules29133068] [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: 06/07/2024] [Revised: 06/21/2024] [Accepted: 06/25/2024] [Indexed: 07/14/2024] Open
Abstract
Reaction of [Ru(H)2(CO)(PPh3)3] 1 with an equimolar amount of pyrrole-2-carboxylic acid (H2L1) leads to the homoleptic chelate derivative k2(O,O)-[RuH(CO)(HL1)(PPh3)2] 2. Prolonged acetonitrile refluxing promotes an unusual k2(O,O)- → k2(N,O)- dynamic chelate conversion, forming a neutral, stable, air- and moisture- insensitive, solvento-species k2(N,O)-[Ru(MeCN)(CO)(L1)(PPh3)2] 3. Analogously, reaction of 1 with the pyrrole-2-carboxyaldehyde (HL2) affords k2(N,O)-[RuH(CO)(HL2)(PPh3)2] 4, 5, as a couple of functional isomers. Optimized reaction conditions such as temperature and solvent polarity allow the isolation of dominant configurations. Structure 5 is a pyrrolide Ru-carbaldehyde, obtained from cyclization of the pendant CHO function, whereas species 4 can be viewed as an ethanoyl-conjugated Ru-pyrrole. Derivatives 3-5 were characterized by single crystal X-ray diffraction, ESI-Ms, IR, and NMR spectroscopy, indicating distinct features for the Ru-bonded pyrrolyl groups. DFT computational results, coplanarity, bond equalization, and electron delocalization along the fused five-membered rings support aromatic features. In accordance with the antisymbiotic trans-influence, both the isolated isomers 4 and 5 disclose CO ligands opposite to N- or O-anionic groups. The quantitative Mayer bond order evidences a stabilizing backbonding effect. Antibacterial and antifungal trials on Gram-positive (Staphylococcus aureus), Gram-negative (Escherichia coli), and Candida albicans were further carried out.
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Affiliation(s)
- Giacomo Drius
- Department of Industrial Chemistry 'Toso Montanari', Alma Mater Studiorum, Università di Bologna, Via Piero Gobetti, 85, 40129 Bologna, Italy
| | - Riccardo Tarroni
- Department of Industrial Chemistry 'Toso Montanari', Alma Mater Studiorum, Università di Bologna, Via Piero Gobetti, 85, 40129 Bologna, Italy
| | - Matteo Birchmeier
- Department of Industrial Chemistry 'Toso Montanari', Alma Mater Studiorum, Università di Bologna, Via Piero Gobetti, 85, 40129 Bologna, Italy
| | - Carola Parolin
- Department of Pharmacy and Biotechnology, University of Bologna, 40127 Bologna, Italy
| | - Carla Boga
- Department of Industrial Chemistry 'Toso Montanari', Alma Mater Studiorum, Università di Bologna, Via Piero Gobetti, 85, 40129 Bologna, Italy
| | - Magda Monari
- Department of Chemistry 'Giacomo Ciamician', Alma Mater Studiorum, Università di Bologna, Via Selmi 2, 40126 Bologna, Italy
| | - Silvia Bordoni
- Department of Industrial Chemistry 'Toso Montanari', Alma Mater Studiorum, Università di Bologna, Via Piero Gobetti, 85, 40129 Bologna, Italy
- Health Sciences and Technologies Interdepartmental Centre for Industrial Research (CIRI SDV), University of Bologna, 40126 Bologna, Italy
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2
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Romanenko GV, Kuznetsova OV, Tretyakov EV, Ovcharenko VI. Sodium salts of 2-hydroxy-3,5-dinitrophenyl-substituted nitronyl and imino nitroxides. Russ Chem Bull 2021. [DOI: 10.1007/s11172-021-3160-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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3
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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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Kuznetsova OV, Romanenko GV, Bogomyakov AS, Ovcharenko VI. Synthesis, Structure, and Magnetic Properties of Heterospin Polymers MI[MII(Hfac)L2]. RUSS J COORD CHEM+ 2020. [DOI: 10.1134/s1070328420070039] [Citation(s) in RCA: 6] [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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5
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Lecourt C, Madanamoothoo W, Ferreol V, Bélanger-Desmarais N, Khrouz L, Tommasino JB, Reber C, Desroches C, Luneau D. Mononuclear manganese(iii) complexes with reduced imino nitroxide radicals by single-electron transfer and intermolecular hydrogen bonds as an intramolecular structural driving force. Dalton Trans 2019; 48:13378-13387. [DOI: 10.1039/c9dt02158b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
One-electron transfer from Mn(ii) ions to an imino nitroxide radical gives mononuclear Mn(iii) complexes of the reduced amino imine-oxide form for which crystal structures evidence hydrogen bonds networks acting as a stabilizing driving-force.
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Affiliation(s)
- Constance Lecourt
- Univ Lyon
- Université Claude Bernard Lyon 1
- CNRS
- Laboratoire des Multimatériaux et Interfaces
- F-69622 Villeurbanne
| | - Warren Madanamoothoo
- Univ Lyon
- Université Claude Bernard Lyon 1
- CNRS
- Laboratoire des Multimatériaux et Interfaces
- F-69622 Villeurbanne
| | - Vivian Ferreol
- Univ Lyon
- Université Claude Bernard Lyon 1
- CNRS
- Laboratoire des Multimatériaux et Interfaces
- F-69622 Villeurbanne
| | | | - Lhoussain Khrouz
- Univ Lyon
- ENS de Lyon
- CNRS UMR 5182
- Université Claude Bernard Lyon 1
- Laboratoire de Chimie
| | - Jean-Bernard Tommasino
- Univ Lyon
- Université Claude Bernard Lyon 1
- CNRS
- Laboratoire des Multimatériaux et Interfaces
- F-69622 Villeurbanne
| | | | - Cédric Desroches
- Univ Lyon
- Université Claude Bernard Lyon 1
- CNRS
- Laboratoire des Multimatériaux et Interfaces
- F-69622 Villeurbanne
| | - Dominique Luneau
- Univ Lyon
- Université Claude Bernard Lyon 1
- CNRS
- Laboratoire des Multimatériaux et Interfaces
- F-69622 Villeurbanne
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6
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Klein J, Beerhues J, Schweinfurth D, van der Meer M, Gazvoda M, Lahiri GK, Košmrlj J, Sarkar B. Versatile Coordination of Azocarboxamides: Redox-Triggered Change of the Chelating Binding Pocket in Ruthenium Complexes. Chemistry 2018; 24:18020-18031. [PMID: 30136748 DOI: 10.1002/chem.201803606] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 08/22/2018] [Indexed: 11/09/2022]
Abstract
Azocarboxamides occupy a special place among azo ligands owing to their versatility for metal coordination. Herein ruthenium complexes with two different azocarboxamide ligands that differ in the presence (or not) of a coordinating pyridyl heterocycle are presented. By making full use of the O,N(amide), N(azo), and N(pyridyl) coordinating sites, the first diruthenium complex that is bridged by an azo ligand containing two different binding pockets was obtained. Moreover, it was conclusively proven that, in the mononuclear complexes, oxidation at the ruthenium center leads to a complete change of coordination at the chelating binding pocket. The complexes were characterized by NMR spectroscopy, mass spectrometry, and single-crystal X-ray diffraction. Additionally, the mechanism of the aforementioned redox-triggered change in the chelating binding pocket and the electronic structures of all the complexes were investigated by a combination of electrochemistry, UV/Vis/NIR/EPR spectroelectrochemistry, and DFT calculations. This is first instance in which a redox-driven change in the complete chelating binding pocket has been observed in a ruthenium complex as well as with azo-based ligands. These results thus show the potential of these versatile azocarboxamide ligands to act as redox-driven switches with possible relevance to electrocatalysis.
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Affiliation(s)
- Johannes Klein
- Institut für Chemie und Biochemie, Anorganische Chemie, Freie Universität Berlin, Fabeckstrasse 34-36, 14195, Berlin, Germany
| | - Julia Beerhues
- Institut für Chemie und Biochemie, Anorganische Chemie, Freie Universität Berlin, Fabeckstrasse 34-36, 14195, Berlin, Germany
| | - David Schweinfurth
- Institut für Chemie und Biochemie, Anorganische Chemie, Freie Universität Berlin, Fabeckstrasse 34-36, 14195, Berlin, Germany
| | - Margarethe van der Meer
- Institut für Chemie und Biochemie, Anorganische Chemie, Freie Universität Berlin, Fabeckstrasse 34-36, 14195, Berlin, Germany
| | - Martin Gazvoda
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, 1000, Ljubljana, Slovenia
| | - Goutam Kumar Lahiri
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| | - Janez Košmrlj
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, 1000, Ljubljana, Slovenia
| | - Biprajit Sarkar
- Institut für Chemie und Biochemie, Anorganische Chemie, Freie Universität Berlin, Fabeckstrasse 34-36, 14195, Berlin, Germany
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Huang XH, Shi L, Ying SM, Yan GY, Liu LH, Sun YQ, Chen YP. Two lanthanide metal–organic frameworks as sensitive luminescent sensors for the detection of Cr2+ and Cr2O72− in aqueous solutions. CrystEngComm 2018. [DOI: 10.1039/c7ce01781b] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Two lanthanide–organic frameworks [Ln(HPIDC)(m-bdc)·1.5H2O]n (Ln = Eu 1 or Tb 2; H3PIDC = 2-(4-pyridyl)-1H-imidazole-4,5-dicarboxylic acid; m-H2bdc = 1,3-benzenedicarboxylic acid) were synthesized under hydrothermal conditions.
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Affiliation(s)
- X. H. Huang
- College of Chemistry
- Fuzhou University
- Fuzhou 350108
- P. R. China
- College of Chemistry and Materials
| | - L. Shi
- College of Chemistry
- Fuzhou University
- Fuzhou 350108
- P. R. China
| | - S. M. Ying
- College of Chemistry and Materials
- Ningde Normal University
- Ningde 352100
- P. R. China
- Fujian Provincial Key Laboratory of Featured Materials in Biochemical Industry
| | - G. Y. Yan
- College of Chemistry and Materials
- Ningde Normal University
- Ningde 352100
- P. R. China
- Fujian Provincial Key Laboratory of Featured Materials in Biochemical Industry
| | - L. H. Liu
- College of Chemistry
- Fuzhou University
- Fuzhou 350108
- P. R. China
| | - Y. Q. Sun
- College of Chemistry
- Fuzhou University
- Fuzhou 350108
- P. R. China
| | - Y. P. Chen
- College of Chemistry
- Fuzhou University
- Fuzhou 350108
- P. R. China
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8
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Kharabayev NN. Quantum chemical modeling of the mechanism of formation of bis-ligand Co(II) complexes based on polydentate heterocyclic azomethine derivatives: Competition between four-, five-, and six-coordination. RUSS J COORD CHEM+ 2017. [DOI: 10.1134/s107032841712003x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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9
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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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10
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Azizpoor Fard M, Behnia A, Puddephatt RJ. Coordination chemistry of mercury(ii) with 2-pyridylnitrones: monomers to polymers. Dalton Trans 2017; 46:3579-3587. [PMID: 28240754 DOI: 10.1039/c7dt00050b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The coordination chemistry of mercury(ii) halides, HgX2, X = Cl, Br, I, with N-methyl-α-(2-pyridyl)nitrone, L1, and N-t-butyl-α-(2-pyridyl)nitrone, L2, is reported. The structures of 1 : 1 complexes [HgX2L], X = Cl, L = L1; X = Br, L = L2, 2 : 1 complexes [(HgX2)2L], X = Br or I, L = L1; X = Cl or I, L = L2, and a unique compound [(HgBr2)5(L2)3] have been determined. In the 1 : 1 and 1 : 2 complexes, the ligand L1 adopts the anti conformation, and is either monodentate or bridging, while the ligand L2 adopts the syn conformation and acts as a chelate ligand. In the compound [(HgBr2)5(L2)3] the ligand L2 is present in both syn-chelate and anti-bridging bonding modes. Secondary intermolecular bonding, involving OHg or XHg interactions, can lead to association of the molecular compounds to form polymers of several kinds. In solution, the complexes are labile and the crystalline products do not necessarily reflect the reaction stoichiometry.
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Affiliation(s)
| | - Ava Behnia
- Department of Chemistry, The University of Western Ontario, London, Canada N6A 5B7.
| | - Richard J Puddephatt
- Department of Chemistry, The University of Western Ontario, London, Canada N6A 5B7.
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Zhu X, Su S, Cao W, Hu S, Wen Y, Wu X, Sheng T. Effects of Ru(ii/iii) redox on the Co(ii) coordination number and magnetic properties of 1D cyanide-bridged Co-Ru compounds. Dalton Trans 2017; 46:1038-1041. [PMID: 28004046 DOI: 10.1039/c6dt04397f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new 1D cyanide-bridged Co-Ru compound, {[trans-RuIII(dmap)4(CN)2Co(dipic)(MeOH)](PF6)}n (1a) (dmap = 4-dimethylaminopyridine, dipic = pyridine-2,6-dicarboxylate), and its reduced state, [trans-RuII(dmap)4(CN)2Co(dipic)]n (1b) have been synthesized. Upon the Ru center reduction from iii to ii, the MeOH solvent molecule bound to Co(ii) in 1a is expelled. 1a displays ferrimagnetic properties but 1b is only a paramagnetic compound.
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Affiliation(s)
- Xiaoquan Zhu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China. and School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Shaodong Su
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China. and School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Wenhai Cao
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China. and School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Shengmin Hu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China.
| | - Yuehong Wen
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China.
| | - Xintao Wu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China.
| | - Tianlu Sheng
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China.
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Synthesis of spin-labeled nitrophenol via substitution of a But group with the NO2 group under mild conditions. Russ Chem Bull 2016. [DOI: 10.1007/s11172-016-1493-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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13
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Heterospin MnIII complex as a reaction product of the redox-induced change in the ligand coordination mode. Russ Chem Bull 2016. [DOI: 10.1007/s11172-016-1432-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Guo H, Lei J, Qin L, Liang Y, Yan J, Lin W, Ding W, Sakiyama H, Liu J, Ma D. Metal-Controlled Assembly of Two Coordination Polymers Built from 4,4′-Methylenedibenzoic Acid with or Without Methyl-Functionalized N-Donor Ligand. J Inorg Organomet Polym Mater 2016. [DOI: 10.1007/s10904-015-0323-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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