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Schreck C, Schönfeld S, Liebing P, Hörner G, Weber B. Binucleating Jäger-type {(N 2O 2) 2} 4- ligands: magnetic and electronic interactions of Fe(II), Ni(II) and Cu(II) across an in-plane TTF-bridge. Dalton Trans 2024; 53:9092-9105. [PMID: 38738956 DOI: 10.1039/d4dt00479e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/14/2024]
Abstract
The simultaneous presence of different electrophores provides an interesting playground for responsive materials. Herein, we present the incorporation of a twice-reversibly oxidizable tetrathiafulvalene (TTF) unit into a binucleating ligand, bridging two metal centers in a fully conjugated plane. A two-step synthesis scheme gave the D2h symmetric Schiff base-like ligand H4L in moderate yields from which the corresponding copper(II) [Cu2L], nickel(II) [Ni2L], [Ni2L(py)4] and iron(II) complexes [Fe2L(py)4], [Fe2L(dmap)4] and [Fe2L(bpee)2]·1 Tol could be obtained. Characterization was performed through 1H-NMR, IR, UV-vis and 57Fe-Mössbauer spectroscopy, SQUID magnetometry and cyclic voltammetry, supported by density functional theory (DFT) calculations. Single crystal X-ray analysis of [Ni2L(py)4] revealed six-coordinate paramagnetic centers, whereas [Ni2L] underwent gradual coordination induced spin state switching (CISSS) in solution. The magnetic independence of both metal centers is echoed by close-to-ideal Curie-plots of the [Cu2L] system and the gradual spin crossover of all iron(II) compounds. By contrast, cyclic voltammetry measurements in solution indicated oxidation-dependent TTF-metal interactions, as well as metal-metal interactions. The reversible TTF-borne events in H4L and [Ni2L] are overlaid with metal-borne events in the case of [Fe2L(py)4], as is corroborated by an analysis of the frontier orbital landscapes and through diagnostic spectral features upon chemical oxidation.
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Affiliation(s)
- Constantin Schreck
- Department of Chemistry, Inorganic Chemistry, University of Bayreuth, 95447 Bayreuth, Germany.
| | - Sophie Schönfeld
- Department of Chemistry, Inorganic Chemistry, University of Bayreuth, 95447 Bayreuth, Germany.
| | - Phil Liebing
- New address: Institute for Inorganic and Analytical Chemistry, Faculty of Chemistry and Earth Sciences, Friedrich-Schiller-University Jena, Germany
| | - Gerald Hörner
- Department of Chemistry, Inorganic Chemistry, University of Bayreuth, 95447 Bayreuth, Germany.
- New address: Institute for Inorganic and Analytical Chemistry, Faculty of Chemistry and Earth Sciences, Friedrich-Schiller-University Jena, Germany
| | - Birgit Weber
- Department of Chemistry, Inorganic Chemistry, University of Bayreuth, 95447 Bayreuth, Germany.
- New address: Institute for Inorganic and Analytical Chemistry, Faculty of Chemistry and Earth Sciences, Friedrich-Schiller-University Jena, Germany
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Bohn A, Moreno JJ, Thuéry P, Robert M, Rivada-Wheelaghan O. Electrocatalytic CO 2 Reduction with a Binuclear Bis-Terpyridine Pyrazole-Bridged Cobalt Complex. Chemistry 2023; 29:e202202361. [PMID: 36330884 PMCID: PMC10107111 DOI: 10.1002/chem.202202361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 10/30/2022] [Accepted: 11/04/2022] [Indexed: 11/06/2022]
Abstract
A pyrazole-based ligand substituted with terpyridine groups at the 3 and 5 positions has been synthesized to form the dinuclear cobalt complex 1, that electrocatalytically reduces carbon dioxide (CO2 ) to carbon monoxide (CO) in the presence of Brønsted acids in DMF. Chemical, electrochemical and UV-vis spectro-electrochemical studies under inert atmosphere indicate pairwise reduction processes of complex 1. Infrared spectro-electrochemical studies under CO2 and CO atmosphere are consistent with a reduced CO-containing dicobalt complex which results from the electroreduction of CO2 . In the presence of trifluoroethanol (TFE), electrocatalytic studies revealed single-site mechanism with up to 94 % selectivity towards CO formation when 1.47 M TFE were present, at -1.35 V vs. Saturated Calomel Electrode in DMF (0.39 V overpotential). The low faradaic efficiencies obtained (<50 %) are attributed to the generation of CO-containing species formed during the electrocatalytic process, which inhibit the reduction of CO2 .
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Affiliation(s)
- Antoine Bohn
- Laboratoire d'Electrochimie Moléculaire, Université Paris Cité, CNRS, 75006, Paris, France
| | - Juan José Moreno
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica, Consejo Superior de Investigaciones Científicas (CSIC) and Universidad de Sevilla, Avenida Américo Vespucio 49, 41092, Sevilla, Spain
| | - Pierre Thuéry
- NIMBE, Université Paris-Saclay, CEA, CNRS, 91191, Gif-sur-Yvette, France
| | - Marc Robert
- Laboratoire d'Electrochimie Moléculaire, Université Paris Cité, CNRS, 75006, Paris, France.,Institut Universitaire de France (IUF), 75005, Paris, France
| | - Orestes Rivada-Wheelaghan
- Laboratoire d'Electrochimie Moléculaire, Université Paris Cité, CNRS, 75006, Paris, France.,Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica, Consejo Superior de Investigaciones Científicas (CSIC) and Universidad de Sevilla, Avenida Américo Vespucio 49, 41092, Sevilla, Spain
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Bechu D, Kyritsakas N, Hosseini MW, Baudron SA. Coordination assemblies based on a flexible tetrathiafulvalene derivative. Polyhedron 2021. [DOI: 10.1016/j.poly.2021.115047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Oliveira S, Belo D, Santos IC, Rabaça S, Almeida M. Synthesis and characterization of the cyanobenzene-ethylenedithio-TTF donor. Beilstein J Org Chem 2015; 11:951-6. [PMID: 26124897 PMCID: PMC4464436 DOI: 10.3762/bjoc.11.106] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Accepted: 05/11/2015] [Indexed: 11/23/2022] Open
Abstract
A dissymmetric TTF-type electron donor, cyanobenzene-ethylenedithio-tetrathiafulvalene (CNB-EDT-TTF), was obtained in high yield, by a cross-coupling reaction with triethyl phosphite between 2-thioxobenzo[d][1,3]dithiole-5-carbonitrile and 5,6-dihydro-[1,3]dithiolo[4,5-b][1,4]dithiin-2-one. This new donor was characterized namely by single crystal X-ray diffraction, cyclic voltammetry, NMR, UV-visible and IR spectroscopy.
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Affiliation(s)
- Sandrina Oliveira
- C²TN, Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, P-2695-066 Bobadela LRS, Portugal
| | - Dulce Belo
- C²TN, Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, P-2695-066 Bobadela LRS, Portugal
| | - Isabel Cordeiro Santos
- C²TN, Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, P-2695-066 Bobadela LRS, Portugal
| | - Sandra Rabaça
- C²TN, Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, P-2695-066 Bobadela LRS, Portugal
| | - Manuel Almeida
- C²TN, Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, P-2695-066 Bobadela LRS, Portugal
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Rabaça S, Oliveira S, Cerdeira AC, Simão D, Santos IC, Almeida M. CyanobenzeneTTF-type donors; synthesis and characterization. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.10.111] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Rabaça S, Oliveira S, Santos IC, Almeida M. Extended TTF-type donors fused with pyrazine units; synthesis and characterization. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.09.131] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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7
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Li YL, Zou LK, Xie B, Lin X, Zhu SS. Synthesis, Characterization, and X-ray Crystal Structures of (Diphosphine)Ni(dmit) and (Diphosphine)Ni(dmio) (Diphosphine = dppv, dppb) Complexes. Z Anorg Allg Chem 2013. [DOI: 10.1002/zaac.201300182] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Pointillart F, Le Guennic B, Golhen S, Cador O, Maury O, Ouahab L. High Nuclearity Complexes of Lanthanide Involving Tetrathiafulvalene Ligands: Structural, Magnetic, and PhotoPhysical Properties. Inorg Chem 2013; 52:1610-20. [DOI: 10.1021/ic302532f] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Fabrice Pointillart
- Organométalliques: Matériaux
et Catalyse, UMR 6226 CNRS-UR1 Institut des Sciences Chimiques de
Rennes, Université de Rennes 1,
35042, Rennes Cedex, France
| | - Boris Le Guennic
- Organométalliques: Matériaux
et Catalyse, UMR 6226 CNRS-UR1 Institut des Sciences Chimiques de
Rennes, Université de Rennes 1,
35042, Rennes Cedex, France
| | - Stéphane Golhen
- Organométalliques: Matériaux
et Catalyse, UMR 6226 CNRS-UR1 Institut des Sciences Chimiques de
Rennes, Université de Rennes 1,
35042, Rennes Cedex, France
| | - Olivier Cador
- Organométalliques: Matériaux
et Catalyse, UMR 6226 CNRS-UR1 Institut des Sciences Chimiques de
Rennes, Université de Rennes 1,
35042, Rennes Cedex, France
| | - Olivier Maury
- Laboratoire de Chimie de l’ENS-Lyon-UMR 5182 CNRS−ENS
Lyon, Université de Lyon 1, 46 Allée
d’Italie, 69364 Lyon Cedex 07, France
| | - Lahcène Ouahab
- Organométalliques: Matériaux
et Catalyse, UMR 6226 CNRS-UR1 Institut des Sciences Chimiques de
Rennes, Université de Rennes 1,
35042, Rennes Cedex, France
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Rabaça S, Cerdeira AC, Oliveira S, Santos IC, Henriques RT, Pereira LC, Coutinho JT, Almeida M. Neutral gold and nickel bis[1-(pyridin-4-yl)-ethylene-1,2-dithiolene] complexes: Synthesis, structure and physical properties. Polyhedron 2012. [DOI: 10.1016/j.poly.2012.03.024] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Nishijo J, Judai K, Nishi N. Weak Ferromagnetism and Strong Spin−Spin Interaction Mediated by the Mixed-Valence Ethynyltetrathiafulvalene-Type Ligand. Inorg Chem 2011; 50:3464-70. [DOI: 10.1021/ic102384s] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Junichi Nishijo
- Department of Materials Molecular Science, Institute for Molecular Science, 38 Nishigo-Naka, Myodaiji, Okazaki 444-8585, Japan
| | - Ken Judai
- Department of Materials Molecular Science, Institute for Molecular Science, 38 Nishigo-Naka, Myodaiji, Okazaki 444-8585, Japan
| | - Nobuyuki Nishi
- Department of Materials Molecular Science, Institute for Molecular Science, 38 Nishigo-Naka, Myodaiji, Okazaki 444-8585, Japan
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Rabaça S, Almeida M. Dithiolene complexes containing N coordinating groups and corresponding tetrathiafulvalene donors. Coord Chem Rev 2010. [DOI: 10.1016/j.ccr.2009.12.006] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Shatruk M, Ray L. Ligands Derived from Tetrathiafulvalene: Building Blocks for Multifunctional Materials. Dalton Trans 2010; 39:11105-21. [DOI: 10.1039/c0dt00610f] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Brooks AC, Day P, Dias SIG, Rabaça S, Santos IC, Henriques RT, Wallis JD, Almeida M. Pyridine-Functionalised (Vinylenedithio)tetrathiafulvalene (VDT-TTF) Derivatives and Their Dithiolene Analogues. Eur J Inorg Chem 2009. [DOI: 10.1002/ejic.200900278] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Gachot G, Pellon P, Roisnel T, Lorcy D. Bimetallamacrocycles involving tetrakis(diphenylphosphinoalkylthio)tetrathiafulvalene. J Organomet Chem 2009. [DOI: 10.1016/j.jorganchem.2009.04.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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16
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Rabaça S, Cerdeira AC, Neves AI, Dias SI, Mézière C, Santos IC, Pereira LC, Fourmigué M, Henriques RT, Almeida M. Complexes based on asymmetrically substituted pyridine–dithiolene ligands [M(4-pedt)2] (M=Au, Cu, Ni; 4-pedt=1-(pyridin-4-yl)-ethylene-1,2-dithiolate): Synthesis, structure and physical properties. Polyhedron 2009. [DOI: 10.1016/j.poly.2009.01.015] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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