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Tanaka Y. Organometallics in molecular junctions: conductance, functions, and reactions. Dalton Trans 2024; 53:8512-8523. [PMID: 38712999 DOI: 10.1039/d4dt00668b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
Molecular junctions, which involve sandwiching molecular structures between electrodes, play a crucial role in molecular electronics. Recent advances in this field have revealed the vital role of organometallic chemistry in the investigation of molecular junctions, which has added to their well-known contributions to catalysis and materials chemistry. This review summarizes the recent examples of organometallic chemistry applications in molecular junctions, which can be categorized into three types, i.e., class I encompassing molecular junctions with bridging organometallic complexes, class II involving molecular junctions with covalent and noncovalent metal electrode-carbon bonds, and class III comprising organometallic reactions within molecular junctions.
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Affiliation(s)
- Yuya Tanaka
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan.
- School of Materials and Chemical Technology, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
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Cesca EC, Hoffmeister DM, Naidek KP, Novo JBM, Serbena JP, Hümmelgen IA, Westphal E, Araki K, Toma HE, Winnischofer H. 1,3,4-Oxadiazole based ruthenium amphiphile for Langmuir-Blodgett films and photo-responsive logic gate construction. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.136350] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Mulas A, Dubacheva GV, Al Sabea H, Miomandre F, Audibert JF, Norel L, Rigaut S, Lagrost C. Self-Assembled Monolayers of Redox-Active 4d-4f Heterobimetallic Complexes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:13711-13717. [PMID: 31550896 DOI: 10.1021/acs.langmuir.9b02083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In this work, we report the preparation of functional interfaces incorporating heterobimetallic systems consisting in the association of an electroactive carbon-rich ruthenium organometallic unit and a luminescent lanthanide ion (Ln = Eu3+ and Yb3+). The organometallic systems are functionalized with a terminal hexylthiol group for subsequent gold surface modification. The formation of self-assembled monolayers (SAMs) with these complex molecular architectures are thoroughly demonstrated by employing a combination of different techniques, including infrared reflection absorption spectroscopy, ellipsometry, contact angle, and cyclic voltammetry measurements. The immobilized heterobimetallic systems show fast electron-transfer kinetics and, hence, are capable of fast electrochemical response. In addition, the characteristic electrochemical signals of the SAMs were found to be sensitive to the presence of lanthanide centers at the bipyridyl terminal units. A positive shift of the potential of the redox signal is readily observed for lanthanide complexes compared to the bare organometallic ligand. This effect is equally observed for preformed complexes and on-surface complexation. Thus, an efficient ligating recruitment of europium and ytterbium cations at gold-modified electrodes is demonstrated, allowing for an easy electrochemical detection of the lanthanide ions along with an alternative preparative method of SAMs incorporating lanthanide cations compared to the immobilization of the preformed complex.
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Affiliation(s)
- Andrea Mulas
- UMR CNRS 6226, Institut des Sciences Chimiques de Rennes (ISCR) , Université de Rennes 1 , 35000 Rennes , France
| | - Galina V Dubacheva
- Ecole Normale Supérieure de Cachan, UMR CNRS 8531, Photophysique et Photochimie Supramoléculaires et Macromoléculaires (PPSM) , Université Paris-Saclay , 61 Avenue Président Wilson , 94235 Cachan , France
| | - Hassan Al Sabea
- UMR CNRS 6226, Institut des Sciences Chimiques de Rennes (ISCR) , Université de Rennes 1 , 35000 Rennes , France
| | - Fabien Miomandre
- Ecole Normale Supérieure de Cachan, UMR CNRS 8531, Photophysique et Photochimie Supramoléculaires et Macromoléculaires (PPSM) , Université Paris-Saclay , 61 Avenue Président Wilson , 94235 Cachan , France
| | - Jean-Frédéric Audibert
- Ecole Normale Supérieure de Cachan, UMR CNRS 8531, Photophysique et Photochimie Supramoléculaires et Macromoléculaires (PPSM) , Université Paris-Saclay , 61 Avenue Président Wilson , 94235 Cachan , France
| | - Lucie Norel
- UMR CNRS 6226, Institut des Sciences Chimiques de Rennes (ISCR) , Université de Rennes 1 , 35000 Rennes , France
| | - Stéphane Rigaut
- UMR CNRS 6226, Institut des Sciences Chimiques de Rennes (ISCR) , Université de Rennes 1 , 35000 Rennes , France
| | - Corinne Lagrost
- UMR CNRS 6226, Institut des Sciences Chimiques de Rennes (ISCR) , Université de Rennes 1 , 35000 Rennes , France
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Milan DC, Vezzoli A, Planje IJ, Low PJ. Metal bis(acetylide) complex molecular wires: concepts and design strategies. Dalton Trans 2018; 47:14125-14138. [PMID: 29951669 DOI: 10.1039/c8dt02103a] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
The past decade has seen a remarkable surge in studies of thin-film and single-molecule electronics, due in no small part to the development and advancement of experimental methods for the construction and measurement of metal|molecule|metal junctions. Within the plethora of molecular structures that have been investigated, metal complexes of general form trans-M(C[triple bond, length as m-dash]CR)2(Ln) have attracted attention from the inorganic and organometallic chemistry community in the search for efficient molecular wires due to the potential π-d-π orbital mixing along the molecular backbone. In this article progress towards this goal will be summarised, and design strategies for future molecular components discussed.
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Affiliation(s)
- David C Milan
- Department of Chemistry, University of Liverpool, Crown St, Liverpool, L69 7ZD, UK
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