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Khan MS, Khalid M, Ahmad MS, Shahid M, Ahmad M. Design and Characterization of a Cu(II) Coordination Polymer Based on α-Diimine: Evaluation of the Biomimetic Activity. J STRUCT CHEM+ 2019. [DOI: 10.1134/s0022476619110180] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Tahara K, Ashihara Y, Higashino T, Ozawa Y, Kadoya T, Sugimoto K, Ueda A, Mori H, Abe M. New π-extended catecholato complexes of Pt(ii) and Pd(ii) containing a benzothienobenzothiophene (BTBT) moiety: synthesis, electrochemical behavior and charge transfer properties. Dalton Trans 2019; 48:7367-7377. [PMID: 30949641 DOI: 10.1039/c8dt05057k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Benzothienobenzothiophene (BTBT) and derivatives have received increasing attention as organic field-effect transistor materials and molecular conductors. This report presents the first synthesis of metal complexes involving a BTBT moiety, which was achieved by complexation of 2,2'-bipyridyl complexes of Pt(ii) and Pd(ii) with dihydroxy-substituted BTBT (1) as a new π-extended catecholato ligand (tBu2Bpy = 4,4'-di-tert-butyl-2,2'-dipyridyl). The resulting complexes M(tBu2Bpy)(O2BTBT) (M = Pt (3Pt) and Pd (3Pd)) were characterized by UV-vis spectroscopy, density functional theory (DFT) calculations, and cyclic voltammetry. The electron donating ability of BTBT was substantially enhanced upon including two oxygen substituents followed by metal coordination. This enabled chemical oxidation of 3Pt and 3Pd with a mild chemical oxidant (ferrocenium hexafluorophosphate) and formation of the one-electron-oxidized state. While 3Pt and 3Pd exhibited an absorption band originating from a catecholate → Bpy ligand-to-ligand charge transfer transition typical of this class of catecholato complexes, the radical cations exhibited a unique π-π* intramolecular charge transfer (ICT) transition absorption in which the π and π* orbitals were the newly incorporated benzothienothiophene-based donor and semiquinonato-based acceptor, respectively. The BTBT+ skeleton was electronically divided into two sites by the present chemical modification. The ICT properties of the complexes were found to be modulated by varying the metal ions. These findings offer a new approach to molecular design for (semi)conducting materials using optical properties.
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Affiliation(s)
- Keishiro Tahara
- Department of Material Science and Research Center for New Functional Materials, Graduate School of Material Science, University of Hyogo, 3-2-1, Kouto, Kamigori, Ako, Hyogo 6781297, Japan
| | - Yuya Ashihara
- Department of Material Science and Research Center for New Functional Materials, Graduate School of Material Science, University of Hyogo, 3-2-1, Kouto, Kamigori, Ako, Hyogo 6781297, Japan
| | - Toshiki Higashino
- The Institute for Solid State Physics, The University of Tokyo, Kashiwanoha, Kashiwa, Chiba 277-8581, Japan
| | - Yoshiki Ozawa
- Department of Material Science and Research Center for New Functional Materials, Graduate School of Material Science, University of Hyogo, 3-2-1, Kouto, Kamigori, Ako, Hyogo 6781297, Japan
| | - Tomofumi Kadoya
- Department of Material Science and Research Center for New Functional Materials, Graduate School of Material Science, University of Hyogo, 3-2-1, Kouto, Kamigori, Ako, Hyogo 6781297, Japan
| | - Kunihisa Sugimoto
- Research & Utilization Division, Japan Synchrotron Radiation Research Institute, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
| | - Akira Ueda
- The Institute for Solid State Physics, The University of Tokyo, Kashiwanoha, Kashiwa, Chiba 277-8581, Japan
| | - Hatsumi Mori
- The Institute for Solid State Physics, The University of Tokyo, Kashiwanoha, Kashiwa, Chiba 277-8581, Japan
| | - Masaaki Abe
- Department of Material Science and Research Center for New Functional Materials, Graduate School of Material Science, University of Hyogo, 3-2-1, Kouto, Kamigori, Ako, Hyogo 6781297, Japan
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González D, Arrué R, Matamala‐Cea E, Arancibia R, Hamon P, Cador O, Roisnel T, Hamon J, Novoa N. Homoleptic Co
II
, Ni
II
, Cu
II
, and Zn
II
Complexes Based on 8‐Hydroxylquinoline Schiff Base Derivative: a Combined Synthetic, Spectral, Structural, and Magnetic Study. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201801160] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Déborah González
- Laboratorio de Química Inorgánica y Organometálica Departamento de Química Analítica e Inorgánica Universidad de Concepción Edmundo Larenas 129 Casilla 160‐C Concepción Chile
| | - Ramón Arrué
- Laboratorio de Química Inorgánica y Organometálica Departamento de Química Analítica e Inorgánica Universidad de Concepción Edmundo Larenas 129 Casilla 160‐C Concepción Chile
| | - Edison Matamala‐Cea
- Laboratorio de Química Inorgánica y Organometálica Departamento de Química Analítica e Inorgánica Universidad de Concepción Edmundo Larenas 129 Casilla 160‐C Concepción Chile
| | - Rodrigo Arancibia
- Laboratorio de Química Inorgánica y Organometálica Departamento de Química Analítica e Inorgánica Universidad de Concepción Edmundo Larenas 129 Casilla 160‐C Concepción Chile
| | - Paul Hamon
- Univ Rennes, CNRS ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226 35000 Rennes France
| | - Olivier Cador
- Univ Rennes, CNRS ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226 35000 Rennes France
| | - Thierry Roisnel
- Univ Rennes, CNRS ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226 35000 Rennes France
| | - Jean‐René Hamon
- Univ Rennes, CNRS ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226 35000 Rennes France
| | - Néstor Novoa
- Laboratorio de Química Inorgánica y Organometálica Departamento de Química Analítica e Inorgánica Universidad de Concepción Edmundo Larenas 129 Casilla 160‐C Concepción Chile
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