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Lambert F, Danten Y, Gatti C, Bocquet B, Franco AA, Frayret C. Carbonyl-Based Redox-Active Compounds as Organic Electrodes for Batteries: Escape from Middle-High Redox Potentials and Further Improvement? J Phys Chem A 2023. [PMID: 37285603 DOI: 10.1021/acs.jpca.3c00478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Extracting─from the vast space of organic compounds─the best electrode candidates for achieving energy material breakthrough requires the identification of the microscopic causes and origins of various macroscopic features, including notably electrochemical and conduction properties. As a first guess of their capabilities, molecular DFT calculations and quantum theory of atoms in molecules (QTAIM)-derived indicators were applied to explore the family of pyrano[3,2-b]pyran-2,6-dione (PPD, i.e., A0) compounds, expanded to A0 fused with various kinds of rings (benzene, fluorinated benzene, thiophene, and merged thiophene/benzene). A glimpse of up-to-now elusive key incidences of introducing oxygen in vicinity to the carbonyl redox center within 6MRs─as embedded in the A0 core central unit common to all A-type compounds─has been gained. Furthermore, the main driving force toward achieving modulated low redox potential/band gaps thanks to fusing the aromatic rings for the A compound series was discovered.
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Affiliation(s)
- Fanny Lambert
- Laboratoire de Réactivité et Chimie des Solides (LRCS), Université de Picardie Jules Verne, UMR CNRS 7314; Hub de l'Energie; Réseau sur le Stockage Electrochimique de l'Energie (RS2E), FR CNRS 3459, 15 Rue Baudelocque, 80000 Amiens Cedex, France
- The French Environment and Energy Management Agency (ADEME), 20 Avenue du Grésillé-BP 90406, 49004 Angers Cedex 01, France
| | - Yann Danten
- Institut des Sciences Moléculaires, UMR CNRS 5255, 351 Cours de la Libération, 33405 Talence, France
| | - Carlo Gatti
- CNR SCITEC, CNR Istituto di Scienze e Tecnologie Chimiche "Giulio Natta", Sede Via C. Golgi, 19, 20133 Milano, Italy
| | - Bryan Bocquet
- Laboratoire de Réactivité et Chimie des Solides (LRCS), Université de Picardie Jules Verne, UMR CNRS 7314; Hub de l'Energie; Réseau sur le Stockage Electrochimique de l'Energie (RS2E), FR CNRS 3459, 15 Rue Baudelocque, 80000 Amiens Cedex, France
| | - Alejandro A Franco
- Laboratoire de Réactivité et Chimie des Solides (LRCS), Université de Picardie Jules Verne, UMR CNRS 7314; Hub de l'Energie; Réseau sur le Stockage Electrochimique de l'Energie (RS2E), FR CNRS 3459, 15 Rue Baudelocque, 80000 Amiens Cedex, France
- ALISTORE-European Research Institute, Hub de l'Energie, FR CNRS 3104, 15 rue Baudelocque, 80039 Amiens, France
- Institut Universitaire de France, 103 boulevard Saint Michel, Paris 75005, France
| | - Christine Frayret
- Laboratoire de Réactivité et Chimie des Solides (LRCS), Université de Picardie Jules Verne, UMR CNRS 7314; Hub de l'Energie; Réseau sur le Stockage Electrochimique de l'Energie (RS2E), FR CNRS 3459, 15 Rue Baudelocque, 80000 Amiens Cedex, France
- ALISTORE-European Research Institute, Hub de l'Energie, FR CNRS 3104, 15 rue Baudelocque, 80039 Amiens, France
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Lambert F, Danten Y, Gatti C, Frayret C. A tool for deciphering the redox potential ranking of organic compounds: a case study of biomass-extracted quinones for sustainable energy. Phys Chem Chem Phys 2020; 22:20212-20226. [PMID: 32699876 DOI: 10.1039/d0cp02045a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Carbonyl compounds have emerged as promising organic electrodes for sustainable energy storage. Accelerating the process of performant materials discovery relies on the possibility of developing methodologies to enable scanning of various sets of candidates. The genesis of this educated guess strategy must be privileged to reduce the search space of experiments, accelerate this research area and contribute to sustainable effort. To address this challenge, we built a quantitative structure-activity relationship to unveil the origin of the redox potential magnitude as a function of both structural features and complexation effects. The potential of this prediction model was demonstrated on various ortho-quinones directly derived from naturally occurring catechols. In addition to the modulation provided by substituent changes, the possibility of applying various types of alkaline(-earth)-ion electrochemistry was examined thoroughly. The power of partitioning the total molecular energy into additive atomic group contributions is highlighted, and the construction of this robust strategy provides guidance towards rational selection of the most suitable compound/metal-ion couples. An upshift/downshift of the redox potential by switching from Li to Mg/Na is revealed, while the identification of the relative role played by the various components of the systems as well as electrostatic interactions is clearly identified. These results, particularly the evidence of the different substituent effects on the single/double reduction potentials and as a function of the type of electrochemistry (Li/Na/Mg), have important implications for designing new electroactive compounds with tailored redox properties.
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Affiliation(s)
- Fanny Lambert
- Laboratoire de Réactivité et Chimie des Solides (LRCS), UMR CNRS 7314, Université de Picardie Jules Verne, Hub de l'Energie, 15 Rue Baudelocque, 80000 Amiens Cedex, France. Réseau sur le Stockage Electrochimique de l'Energie (RS2E), FR CNRS 3459, France.
| | - Yann Danten
- Institut des Sciences Moléculaires, UMR CNRS 5255, 351 Cours de la Libération, 33405 Talence, France
| | - Carlo Gatti
- CNR SCITEC, CNR Istituto di Scienze e Tecnologie Chimiche "Giulio Natta", Sede Via C. Golgi, 19, 20133 Milano, Italy
| | - Christine Frayret
- Laboratoire de Réactivité et Chimie des Solides (LRCS), UMR CNRS 7314, Université de Picardie Jules Verne, Hub de l'Energie, 15 Rue Baudelocque, 80000 Amiens Cedex, France. Réseau sur le Stockage Electrochimique de l'Energie (RS2E), FR CNRS 3459, France.
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Milić JV, Schneeberger T, Zalibera M, Diederich F, Boudon C, Ruhlmann L. Spectro-electrochemical toolbox for monitoring and controlling quinone-mediated redox-driven molecular gripping. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.04.049] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Ulas G, Lemmin T, Wu Y, Gassner GT, DeGrado WF. Designed metalloprotein stabilizes a semiquinone radical. Nat Chem 2016; 8:354-9. [PMID: 27001731 PMCID: PMC4857601 DOI: 10.1038/nchem.2453] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Accepted: 01/07/2016] [Indexed: 12/25/2022]
Abstract
Enzymes use binding energy to stabilize their substrates in high-energy states that are otherwise inaccessible at ambient temperature. Here we show that a de novo designed Zn(II) metalloprotein stabilizes a chemically reactive organic radical that is otherwise unstable in aqueous media. The protein binds tightly to and stabilizes the radical semiquinone form of 3,5-di-tert-butylcatechol. Solution NMR spectroscopy in conjunction with molecular dynamics simulations show that the substrate binds in the active site pocket where it is stabilized by metal-ligand interactions as well as by burial of its hydrophobic groups. Spectrochemical redox titrations show that the protein stabilized the semiquinone by reducing the electrochemical midpoint potential for its formation via the one-electron oxidation of the catechol by approximately 400 mV (9 kcal mol(-1)). Therefore, the inherent chemical properties of the radical were changed drastically by harnessing its binding energy to the metalloprotein. This model sets the basis for designed enzymes with radical cofactors to tackle challenging chemistry.
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Affiliation(s)
- Gözde Ulas
- Department of Pharmaceutical Chemistry, University of California – San Francisco, San Francisco, California 94158, USA
| | - Thomas Lemmin
- Department of Pharmaceutical Chemistry, University of California – San Francisco, San Francisco, California 94158, USA
| | - Yibing Wu
- Department of Pharmaceutical Chemistry, University of California – San Francisco, San Francisco, California 94158, USA
| | - George T. Gassner
- Department of Chemistry and Biochemistry, San Francisco State University, San Francisco, California 94132, USA
| | - William F. DeGrado
- Department of Pharmaceutical Chemistry, University of California – San Francisco, San Francisco, California 94158, USA
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Yamamoto H, Ohkubo K, Akimoto S, Fukuzumi S, Tsuda A. Control of reaction pathways in the photochemical reaction of a quinone with tetramethylethylene by metal binding. Org Biomol Chem 2014; 12:7004-17. [PMID: 24947667 DOI: 10.1039/c4ob00659c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The present study reports a novel supramolecular photochemical reaction that focuses on the direct electronic interactions between a host reaction substrate and guest metal salts. The reaction pathways in the photochemical reactions of quinone derivatives bearing a methoxy group and a long oligoether sidearm QEn (n = 0 and 3) with tetramethylethylene (TME) are changed upon noncovalent complexations of the host reactant with alkali and alkaline earth metal ions and a transition metal salt. The photochemical reaction of QEn with TME provides a mixture of [2 + 2] cycloadducts 1aEn and 1bEn, hydroquinone H2QEn, and monoallyl ether adducts of hydroquinones 2aEn and 2bEn. The photochemical reaction proceeds by the photoinduced electron transfer mechanism, where photoirradiation brings about formation of a radical ion pair [QEn˙(-), TME˙(+)] as the primary intermediate. We found that the yields and selectivity of these photoproducts are changed upon electronic interactions of QEn˙(-) with the metal salts. The photochemical reaction in the absence of metal salts provides H2QEn as its major product, whereas QE3, having the long sidearm, dominantly produces 2aE3 at the expense of 1aE3, 1bE3, and H2QE3 when it forms a size-favorable host-guest complex with divalent Ca(2+). In contrast, QEn selectively provides oxetanes 1aEn and 1bEn in the presence of Pd(OAc)2, which can form complexes with the quinone through metal-olefin and coordination interactions in the ground and photoexcited states of the quinone.
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Affiliation(s)
- Hiroaki Yamamoto
- Department of Chemistry, Graduate School of Science, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe 657-8501, Japan.
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Youchret-Zallez OB, Besbes-Hentati S, Bouvet M, Said H. Electrochemical and spectral studies of auto-assembled arrays of calix[4]arenequinhydrone charge-transfer complex on indium-tin oxide (ITO) glass. J INCL PHENOM MACRO 2014; 79:383-390. [PMID: 25018666 PMCID: PMC4082645 DOI: 10.1007/s10847-013-0361-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2013] [Accepted: 08/27/2013] [Indexed: 11/28/2022]
Abstract
A sensing materiel based on calix[4]arene molecules is electrochemically deposited on ITO electrode coated. A brown film was electrodeposited at a potential Eimp = –1.00 V versus SCE in acetonitrile solvent, however in dichloromethane solvent, a bluish film auto-assembled on the ITO electrode coated at a potential Eimp = −0.65 V versus SCE. Both films are subsequently analyzed by cyclic voltammetry and UV–Vis spectroscopy. This investigation shows that in acetonitrile solvent, the charge-transfer complex, calix[4]arenequinhydrone was formed in electrolytic solution and it was not self-assembled on the ITO electrode. The related UV–Vis spectrum shows a single absorption band towards a wavelength about 350 nm. The optical behaviour of the blue film shows two absorption bands: the first one appears on the first absorption band of the acceptor at 305 nm and the second one in the visible range at 502 nm. The band situated in the visible range correspond to a well-defined charge-transfer band indicating the presence of the charge-transfer complex, the calix[4]arenequinhydrone.
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Affiliation(s)
- Oumayma Ben Youchret-Zallez
- Laboratoire de thermodynamique et d'électrochimie, Faculté des sciences de Bizerte, 7021 Zarzouna, Bizerte, Tunisia
| | - Salma Besbes-Hentati
- Laboratoire de thermodynamique et d'électrochimie, Faculté des sciences de Bizerte, 7021 Zarzouna, Bizerte, Tunisia
| | - Marcel Bouvet
- UMR 5260, CNRS, Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), Dijon, France
| | - Hechmi Said
- Laboratoire de thermodynamique et d'électrochimie, Faculté des sciences de Bizerte, 7021 Zarzouna, Bizerte, Tunisia
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Meddeb-Limem S, Besbes-Hentati S, Said H, Bouvet M. From the electrochemical generation of calix[4]arenedihydroquinone to the electrodeposition of calix[4]arenediquinone–calix[4]arenedihydroquinone assembly. Electrochim Acta 2011. [DOI: 10.1016/j.electacta.2011.09.051] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Youchret-Zallez OB, Besbes-Hentati S, Bouvet M, Said H. Self-assembled calix[4]arenequinhydrone on the platinum electrode by cathodic reduction of calix[4]arenediquinone. J INCL PHENOM MACRO 2011. [DOI: 10.1007/s10847-011-0032-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Guin PS, Das S, Mandal PC. Electrochemical Reduction of Quinones in Different Media: A Review. INTERNATIONAL JOURNAL OF ELECTROCHEMISTRY 2011. [DOI: 10.4061/2011/816202] [Citation(s) in RCA: 262] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The electron transfer reactions involving quinones, hydroquinones, and catechols are very important in many areas of chemistry, especially in biological systems. The therapeutic efficiency as well as toxicity of anthracycline anticancer drugs, a class of anthraquinones, is governed by their electrochemical properties. Other quinones serve as important functional moiety in various biological systems like electron-proton carriers in the respiratory chain and their involvement in photosynthetic electron flow systems. The present paper summarizes literatures on the reduction of quinones in different solvents under various conditions using different electrochemical methods. The influence of different reaction conditions including pH of the media, nature of supporting electrolytes, nature of other additives, intramolecular or intermolecular hydrogen bonding, ion pair formation, polarity of the solvents, stabilization of the semiquinone and quinone dianion, catalytic property, and adsorption at the electrode surface, are discussed and relationships between reaction conditions and products formed have been presented.
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Affiliation(s)
- Partha Sarathi Guin
- Department of Chemistry, Shibpur Dinobundhoo Institution (College), 412/1 G. T. Road (South), Howrah 711102, India
| | - Saurabh Das
- Department of Chemistry, Jadavpur University, Raja S. C. Mullick Road, Kolkata 700032, India
| | - P. C. Mandal
- Chemical Sciences Division, Saha Institute of Nuclear Physics, 1/AF-Bidhannagar, Kolkata 700064, India
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Leontiev AV, Jemmett CA, Beer PD. Anion Recognition and Cation-Induced Molecular Motion in a Heteroditopic [2]Rotaxane. Chemistry 2010; 17:816-25. [DOI: 10.1002/chem.201002405] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2010] [Indexed: 11/11/2022]
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Thulasi S, Babu J, Babukuttannair A, Sreemathi V, Varma RL. Direct access to upper rim substituted mono- and diaryloxy calix[4]arenes via bis(spirodienone) route. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.04.021] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Chawla HM, Sahu SN, Shrivastava R. Synthesis and binding characteristics of novel calix[4]arene(amidocrown) diquinones. CAN J CHEM 2009. [DOI: 10.1139/v09-007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A series of new calix[4]arene(amidocrown) diquinones (3a–3d) have been synthesized, characterized, and evaluated for cation recognition. It has been observed that 3b interacts with alkali metal ions (Li+, Na+, and K+) and ammonium ions to induce an unprecedented downfield shift in the NH proton resonance, which can be attributed to polarization of the amidocrown ring of the calix[4]arene diquinone receptor. The observation has been confirmed by a significant anodic shift (Li+ > NH4+ > Na+> K+) of the corresponding amidocrown-diquinone redox couple in cyclic and square wave voltammetric experiments. Both NMR and electrochemical studies of the binding characteristics of 3b with alkali metal cations and ammonium ions revealed a 1:1 binding stoichiometry for all and exhibited the highest association constant for lithium ions. This indicated that the receptor 3b selectively binds the lithium ion in preference to other alkali metal cations and ammonium ions.
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Affiliation(s)
- Har Mohindra Chawla
- Department of Chemistry, Indian Institute of Technology, Hauz Khas, New Delhi 110 016, India
| | - Satya Narayan Sahu
- Department of Chemistry, Indian Institute of Technology, Hauz Khas, New Delhi 110 016, India
| | - Rahul Shrivastava
- Department of Chemistry, Indian Institute of Technology, Hauz Khas, New Delhi 110 016, India
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Zhang YL, Shen HX, Liu Y, Zhang CX, Chen LX. Salt-Bridge Supported Bilayer Lipid Membrane Modified with Calix[n]arenes as Alkali Cation Sensors. ANAL LETT 2008. [DOI: 10.1080/00032710008543092] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Oh WS, Chung TD, Kim J, Kim HS, Kim H, Hwang D, Kim K, Rha SG, Choe JI, Chang SK. Synthesis and Electrochemical Properties of Calix[4]arene-triester-monoquinones. Supramol Chem 2006. [DOI: 10.1080/10610279808034990] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Weon Seok Oh
- a Department of Chemistry , Chung-Ang University , Seoul , 156-756 , Korea
| | - Taek Dong Chung
- b Department of Chemistry and Center for Molecular Catalysis , Seoul National University , Seoul , 151-742 , Korea
| | - Jongwon Kim
- b Department of Chemistry and Center for Molecular Catalysis , Seoul National University , Seoul , 151-742 , Korea
| | - Hee-Soo Kim
- b Department of Chemistry and Center for Molecular Catalysis , Seoul National University , Seoul , 151-742 , Korea
| | - Hasuck Kim
- b Department of Chemistry and Center for Molecular Catalysis , Seoul National University , Seoul , 151-742 , Korea
| | - Dongmok Hwang
- c Department of Chemistry , Center for Biofunctional Molecules, Pohang University of Science and Technology , Pohang , 790-784 , Korea
| | - Kimoon Kim
- c Department of Chemistry , Center for Biofunctional Molecules, Pohang University of Science and Technology , Pohang , 790-784 , Korea
| | - Seung Gul Rha
- a Department of Chemistry , Chung-Ang University , Seoul , 156-756 , Korea
| | - Jong-In Choe
- a Department of Chemistry , Chung-Ang University , Seoul , 156-756 , Korea
| | - Suk-Kyu Chang
- a Department of Chemistry , Chung-Ang University , Seoul , 156-756 , Korea
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Blesa MJ, Zhao BT, Allain M, Le Derf F, Sallé M. Bis(calixcrown)tetrathiafulvalene Receptors. Chemistry 2006; 12:1906-14. [PMID: 16419139 DOI: 10.1002/chem.200500878] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
A new class of electroactive receptors has been synthesized, built by covalent association of five subunits: two calixarene platforms for spatial organization, two polyether 3D cavities for cation binding, and one electroactive TTF unit to probe the complexation event. Sodium complexation induces rigidification of the molecular assembly, as shown by 1H NMR titration and single-crystal X-ray crystallographic studies on free receptor 14 and a corresponding complex with two bound sodium atoms per receptor (15-(NaPF6)2). The calixarene units in these receptors change from a pinched cone conformation in the free ligand to a symmetrical cone in the complex. Cyclovoltammetric studies validated the electrochemical recognition concept of these five-member assemblies.
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Affiliation(s)
- María-Jesús Blesa
- Laboratoire de Chimie et Ingénierie Moléculaire des Matériaux d'Angers (CIMMA), Groupe Synthèse Organique et Matériaux Fonctionnels, UMR CNRS 6200, Université d'Angers, 2 Bd Lavoisier, 49045 Angers (France)
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Matt D, Steyer S, Allouche L, Louati A, Hamlil A, Strehler C, Neuburger M. Conformational instability of a proximally-difunctionalized calix[4]-diquinone. J Mol Struct 2005. [DOI: 10.1016/j.molstruc.2004.12.043] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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First synthesis of a ‘1,2-diquinone-calix[4]arene’. Interaction of its reduced form with Ag+. J Electroanal Chem (Lausanne) 2002. [DOI: 10.1016/s0022-0728(01)00734-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Chung TD, Park J, Kim J, Lim H, Choi MJ, Kim JR, Chang SK, Kim H. Self-assembled monolayer of a redox-active calix[4]arene: voltammetric recognition of the Ba2+ ion in aqueous media. Anal Chem 2001; 73:3975-80. [PMID: 11534725 DOI: 10.1021/ac001050p] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The Redox-active monolayer of a novel calix[4]arene recognizing redox-inactive ionic species by voltammetry is reported. Calix[4]arene-disulfide-diquinone, which is not only redox-active but is also a highly selective ionophore for the Ba2+ ion, spontaneously forms a stable and dense monolayer film on gold. The redox-active calixarene monolayer selectively recognizes Ba2+ ion in aqueous media, and the voltammetric signals are proportional to the ionic concentration. A new voltammetric peak can be detected by square-wave voltammetry upon adding a dilute solution containing Ba2+ ion having a concentration as low as 1.0 x 10(-6) M. The Langmuir plot (1/ip vs 1/[Ba2+]) shows a linear slope in the range from 1.0 x 10(-6) M to 1.0 x 10(-4) M. This modified electrode does not show any significant interference from alkali and alkaline earth metal ions except for Sr2+ and Ca2+. Only 100- and 500-fold concentrations of Sr2+ and Ca2+ ions, respectively, can lead to voltammetric responses comparable to that of Ba2+.
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Affiliation(s)
- T D Chung
- School of Chemistry and Molecular Engineering, Center for Molecular Catalysis, Seoul National University, Korea
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Kim J, Chung T, Kim H. Determination of biologically active acids based on the electrochemical reduction of quinone in acetonitrile+water mixed solvent. J Electroanal Chem (Lausanne) 2001. [DOI: 10.1016/s0022-0728(00)00489-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Anodic oxidation of p-But-calix[4]arene-(OH)2-(OCH2CONEt2)2. Electrogeneration of a calixdiquinone in dichloromethane. Electrochem commun 2000. [DOI: 10.1016/s1388-2481(00)00113-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Kang SK, Chung TD, Kim H. Electrochemical recognition of Ca2+ ion in basic aqueous media using quinone-derivatized calix[4]arene. Electrochim Acta 2000. [DOI: 10.1016/s0013-4686(00)00372-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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23
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Jeong H, Choi EM, Kang SO, Nam KC, Jeon S. Electrochemistry of a urea-functionalized calix[4]diquinone sulfate-anion selective receptor. J Electroanal Chem (Lausanne) 2000. [DOI: 10.1016/s0022-0728(00)00108-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Chung TD, Kang SK, Kim J, Kim HS, Kim H. Interaction between various alkylammonium ions and quinone-derivatized calix[4]arenes in aprotic media. J Electroanal Chem (Lausanne) 1997. [DOI: 10.1016/s0022-0728(97)00100-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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