1
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Bagha H, Hein R, Lim JYC, Myers WK, Sambrook MR, Beer PD. Phosphate selective binding and sensing by halogen bonding tripodal copper(II) metallo-receptors in aqueous media. Dalton Trans 2024; 53:12338-12348. [PMID: 38985452 DOI: 10.1039/d4dt01585a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/11/2024]
Abstract
Combining the potency of non-covalent halogen bonding (XB) with metal ion coordination, the synthesis and characterisation of a series of hydrophilic XB tripodal Cu(II) metallo-receptors, strategically designed for tetrahedral anion guest binding and sensing in aqueous media is described. The reported metallo-hosts contain a tripodal C3-symmetric tris-iodotriazole XB donor anion recognition motif terminally functionalised with tri(ethylene glycol) and permethylated β-cyclodextrin functionalities to impart aqueous solubility. Optical UV-vis anion binding studies in combination with unprecedented quantitative EPR anion titration investigations reveal the XB Cu(II) metallo-receptors exhibit strong and selective phosphate recognition over a range of other monocharged anionic species in competitive aqueous solution containing 40% water, notably outperforming a hydrogen bonding (HB) Cu(II) metallo-receptor counterpart. Electrochemical studies demonstrate further the capability of the metallo-receptors to sense anions via significant cathodic perturbations of the respective Cu(II)/Cu(I) redox couple.
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Affiliation(s)
- Hena Bagha
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA, UK.
| | - Robert Hein
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA, UK.
| | - Jason Y C Lim
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA, UK.
| | - William K Myers
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA, UK.
| | | | - Paul D Beer
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA, UK.
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2
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Aoun P, Nyssen N, Richard S, Zhurkin F, Jabin I, Colasson B, Reinaud O. Selective Metal-ion Complexation of a Biomimetic Calix[6]arene Funnel Cavity Functionalized with Phenol or Quinone. Chemistry 2023; 29:e202202934. [PMID: 36321640 PMCID: PMC10107959 DOI: 10.1002/chem.202202934] [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: 09/19/2022] [Indexed: 11/06/2022]
Abstract
In the biomimetic context, many studies have evidenced the importance of the 1st and 2nd coordination sphere of a metal ion for controlling its properties. Here, we propose to evaluate a yet poorly explored aspect, which is the nature of the cavity that surrounds the metal labile site. Three calix[6]arene-based aza-ligands are compared, that differ only by the nature of cavity walls, anisole, phenol or quinone (LOMe , LOH and LQ ). Monitoring ligand exchange of their ZnII complexes evidenced important differences in the metal ion relative affinities for nitriles, halides or carboxylates. It also showed a possible sharp kinetic control on both, metal ion binding and ligand exchange. Hence, this study supports the observations reported on biological systems, highlighting that the substitution of an amino-acid residue of the enzyme active site, at remote distance of the metal ion, can have strong impacts on metal ion lability, substrate/product exchange or selectivity.
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Affiliation(s)
- Pamela Aoun
- Laboratoire de Chimie et de Biochimie Pharmacologiques et Toxicologiques, CNRS UMR 8601 Université Paris Cité, 45 Rue des Saints Pères, 75006, Paris, France
| | - Nicolas Nyssen
- Laboratoire de Chimie et de Biochimie Pharmacologiques et Toxicologiques, CNRS UMR 8601 Université Paris Cité, 45 Rue des Saints Pères, 75006, Paris, France.,Laboratoire de Chimie Organique, Université libre de Bruxelles (ULB), Avenue F. D. Roosevelt 50, CP160/06, B 1050, Brussels, Belgium
| | - Sarah Richard
- Laboratoire de Chimie et de Biochimie Pharmacologiques et Toxicologiques, CNRS UMR 8601 Université Paris Cité, 45 Rue des Saints Pères, 75006, Paris, France
| | - Fedor Zhurkin
- Laboratoire de Chimie et de Biochimie Pharmacologiques et Toxicologiques, CNRS UMR 8601 Université Paris Cité, 45 Rue des Saints Pères, 75006, Paris, France
| | - Ivan Jabin
- Laboratoire de Chimie Organique, Université libre de Bruxelles (ULB), Avenue F. D. Roosevelt 50, CP160/06, B 1050, Brussels, Belgium
| | - Benoit Colasson
- Laboratoire de Chimie et de Biochimie Pharmacologiques et Toxicologiques, CNRS UMR 8601 Université Paris Cité, 45 Rue des Saints Pères, 75006, Paris, France
| | - Olivia Reinaud
- Laboratoire de Chimie et de Biochimie Pharmacologiques et Toxicologiques, CNRS UMR 8601 Université Paris Cité, 45 Rue des Saints Pères, 75006, Paris, France
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3
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Deb M, Hassan N, Chowdhury D, Sanfui MH, Roy S, Bhattacharjee C, Majumdar S, Chattopadhyay PK, Singha NR. Nontraditional Redox Active Aliphatic Luminescent Polymer for Ratiometric pH Sensing and Sensing-Removal-Reduction of Cu(II): Strategic Optimization of Composition. Macromol Rapid Commun 2022; 43:e2200317. [PMID: 35798327 DOI: 10.1002/marc.202200317] [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: 04/01/2022] [Revised: 06/11/2022] [Indexed: 11/11/2022]
Abstract
Here, redox active aliphatic luminescent polymers (ALPs) are synthesized via polymerization of N,N-dimethyl-2-propenamide (DMPA) and 2-methyl-2-propenoic acid (MPA). The structures and properties of the optimum ALP3, ALP3-aggregate and Cu(I)-ALP3, ratiometric pH sensing, redox activity, aggregation enhanced emission (AEE), Stokes shift, and oxygen-donor selective coordination-reduction of Cu(II) to Cu(I) are explored via spectroscopic, microscopic, density functional theory-reduced density gradient (DFT-RDG), fluorescence quenching, adsorption isotherm-thermodynamics, and electrochemical methods. The intense blue and green fluorescence of ALP3 emerges at pH = 7.0 and 9.0, respectively, due to alteration of fluorophores from -C(═O)N(CH3 )2 / -C(═O)OH to -C(O- )═N+ (CH3 )2 / -C(═O)O- , inferred from binding energies at 401.32 eV (-C(O- )═N+ (CH3 )2 ) and 533.08 eV (-C(═O)O- ), significant red shifting in absorption and emission spectra, and peak at 2154 cm-1 . The n-π* communications in ALP3-aggregate, hydrogen bondings within 2.34-2.93 Å (intramolecular) in ALP3 and within 1.66-2.89 Å (intermolecular) in ALP3-aggregate, respectively, contribute significantly in fluorescence, confirmed from NMR titration, ratiometric pH sensing, AEE, excitation dependent emission, and Stokes shift and DFT-RDG analyses. For ALP3, Stokes shift, excellent limit of detection, adsorption capacity, and redox potentials are 13561 cm-1 /1.68 eV, 0.137 ppb, 122.93 mg g-1 , and 0.33/-1.04 V at pH 7.0, respectively.
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Affiliation(s)
- Mousumi Deb
- Advanced Polymer Laboratory, Department of Polymer Science and Technology, Government College of Engineering and Leather Technology (Post Graduate), Maulana Abul Kalam Azad University of Technology, Salt Lake City, Kolkata, West Bengal, 700106, India
| | - Nadira Hassan
- Advanced Polymer Laboratory, Department of Polymer Science and Technology, Government College of Engineering and Leather Technology (Post Graduate), Maulana Abul Kalam Azad University of Technology, Salt Lake City, Kolkata, West Bengal, 700106, India
| | - Deepak Chowdhury
- Advanced Polymer Laboratory, Department of Polymer Science and Technology, Government College of Engineering and Leather Technology (Post Graduate), Maulana Abul Kalam Azad University of Technology, Salt Lake City, Kolkata, West Bengal, 700106, India
| | - Md Hussain Sanfui
- Advanced Polymer Laboratory, Department of Polymer Science and Technology, Government College of Engineering and Leather Technology (Post Graduate), Maulana Abul Kalam Azad University of Technology, Salt Lake City, Kolkata, West Bengal, 700106, India
| | - Shrestha Roy
- Advanced Polymer Laboratory, Department of Polymer Science and Technology, Government College of Engineering and Leather Technology (Post Graduate), Maulana Abul Kalam Azad University of Technology, Salt Lake City, Kolkata, West Bengal, 700106, India
| | | | - Swapan Majumdar
- Department of Chemistry, Tripura University, Suryamaninagar, 799022, India
| | - Pijush Kanti Chattopadhyay
- Department of Leather Technology, Government College of Engineering and Leather Technology (Post Graduate), Maulana Abul Kalam Azad University of Technology, Salt Lake City, Kolkata, West Bengal, 700106, India
| | - Nayan Ranjan Singha
- Advanced Polymer Laboratory, Department of Polymer Science and Technology, Government College of Engineering and Leather Technology (Post Graduate), Maulana Abul Kalam Azad University of Technology, Salt Lake City, Kolkata, West Bengal, 700106, India
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4
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Berthonnaud L, Esmieu C, Mallet-Ladeira S, Hureau C. Solid-state and solution characterizations of [(TMPA)Cu(II)(SO 3)] and [(TMPA)Cu(II)(S 2O 3)] complexes: Application to sulfite and thiosulfate fast detection. J Inorg Biochem 2021; 225:111601. [PMID: 34597885 DOI: 10.1016/j.jinorgbio.2021.111601] [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: 06/30/2021] [Revised: 08/03/2021] [Accepted: 09/09/2021] [Indexed: 10/20/2022]
Abstract
Sulfite (SO32-) and thiosulfate (S2O32-) ions are used as food preservative and antichlor agent respectively. To detect low levels of such anions we used Cu(II) complex of the Tris-Methyl Pyridine Amine (TMPA) ligand, denoted L. Formation of [LCu(SO3)] (1) and [LCu(S2O3)] (2) in solution were monitored using UV-Vis, EPR and cyclic voltammetry, while the solid-state X-ray structures of both complexes were solved. In addition, we also evaluated the pH range in which the complexes are stable, and the anions binding affinity values for the [LCu(solvent)]2+ (3) parent complex. As a matter of illustration, we determined the sulfite content in a commercial crystal sugar.
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Affiliation(s)
- Léonie Berthonnaud
- LCC-CNRS, Université de Toulouse, CNRS, Toulouse, France; Division of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara, Japan
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5
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Brunetti E, Marcelis L, Zhurkin FE, Luhmer M, Jabin I, Reinaud O, Bartik K. A Water Molecule Triggers Guest Exchange at a Mono-Zinc Centre Confined in a Biomimetic Calixarene Pocket: a Model for Understanding Ligand Stability in Zn Proteins. Chemistry 2021; 27:13730-13738. [PMID: 34288166 DOI: 10.1002/chem.202102184] [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: 06/18/2021] [Indexed: 11/12/2022]
Abstract
In this study, the ligand exchange mechanism at a biomimetic ZnII centre, embedded in a pocket mimicking the possible constrains induced by a proteic structure, is explored. The residence time of different guest ligands (dimethylformamide, acetonitrile and ethanol) inside the cavity of a calix[6]arene-based tris(imidazole) tetrahedral zinc complex was probed using 1D EXchange SpectroscopY NMR experiments. A strong dependence of residence time on water content was observed with no exchange occurring under anhydrous conditions, even in the presence of a large excess of guest ligand. These results advocate for an associative exchange mechanism involving the transient exo-coordination of a water molecule, giving rise to 5-coordinate ZnII intermediates, and inversion of the pyramid at the ZnII centre. Theoretical modelling by DFT confirmed that the associative mechanism is at stake. These results are particularly relevant in the context of the understanding of kinetic stability/lability in Zn proteins and highlight the key role that a single water molecule can play in catalysing ligand exchange and controlling the lability of ZnII in proteins.
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Affiliation(s)
- Emilio Brunetti
- Engineering of Molecular Nanosystems, Université libre de Bruxelles, Avenue F. D. Roosevelt 50, CP165/64, 1050, Brussels, Belgium.,Laboratory of Organic Chemistry, Université libre de Bruxelles, Avenue F. D. Roosevelt 50, CP165/64, 1050, Brussels, Belgium
| | - Lionel Marcelis
- Engineering of Molecular Nanosystems, Université libre de Bruxelles, Avenue F. D. Roosevelt 50, CP165/64, 1050, Brussels, Belgium
| | - Fedor E Zhurkin
- Laboratory of Pharmacological and Toxicological Chemistry and Biochemistry, Université Paris Descartes, 45, rue des Saints-Pères, 75006, Paris, France
| | - Michel Luhmer
- High-Resolution Nuclear Magnetic Resonance laboratory, Université libre de Bruxelles, Avenue F. D. Roosevelt 50, CP165/64, 1050, Brussels, Belgium
| | - Ivan Jabin
- Laboratory of Organic Chemistry, Université libre de Bruxelles, Avenue F. D. Roosevelt 50, CP165/64, 1050, Brussels, Belgium
| | - Olivia Reinaud
- Laboratory of Pharmacological and Toxicological Chemistry and Biochemistry, Université Paris Descartes, 45, rue des Saints-Pères, 75006, Paris, France
| | - Kristin Bartik
- Engineering of Molecular Nanosystems, Université libre de Bruxelles, Avenue F. D. Roosevelt 50, CP165/64, 1050, Brussels, Belgium
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6
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Le Poul N, Colasson B, Thiabaud G, Dit Fouque DJ, Iacobucci C, Memboeuf A, Douziech B, Řezáč J, Prangé T, de la Lande A, Reinaud O, Le Mest Y. Gating the electron transfer at a monocopper centre through the supramolecular coordination of water molecules within a protein chamber mimic. Chem Sci 2018; 9:8282-8290. [PMID: 30542577 PMCID: PMC6240898 DOI: 10.1039/c8sc03124j] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2018] [Accepted: 08/29/2018] [Indexed: 11/21/2022] Open
Abstract
Functionality of enzymes is strongly related to water dynamic processes.
Functionality of enzymes is strongly related to water dynamic processes. The control of the redox potential for metallo-enzymes is intimately linked to the mediation of water molecules in the first and second coordination spheres. Here, we report a unique example of supramolecular control of the redox properties of a biomimetic monocopper complex by water molecules. It is shown that the copper complex based on a calix[6]arene covalently capped with a tetradentate [tris(2-methylpyridyl)amine] (tmpa) core, embedding the metal ion in a hydrophobic cavity, can exist in three different states. The first system displays a totally irreversible redox behaviour. It corresponds to the reduction of the 5-coordinate mono-aqua-CuII complex, which is the thermodynamic species in the +II state. The second system is detected at a high redox potential. It is ascribed to an “empty cavity” or “water-free” state, where the CuI ion sits in a 4-coordinate trigonal environment provided by the tmpa cap. This complex is the thermodynamic species in the +I state under “dry conditions”. Surprisingly, a third redox system appears as the water concentration is increased. Under water-saturation conditions, it displays a pseudo-reversible behaviour at a low scan rate at the mid-point from the water-free and aqua species. This third system is not observed with the Cu-tmpa complex deprived of a cavity. In the calix[6]cavity environment, it is ascribed to a species where a pair of water molecules is hosted by the calixarene cavity. A molecular mechanism for the CuII/CuI redox process with an interplay of (H2O)x (x = 0, 1, 2) hosting is proposed on the basis of computational studies. Such an unusual behaviour is ascribed to the unexpected stabilization of the CuI state by inclusion of the pair of water molecules. This phenomenon strongly evidences the drastic influence of the interaction between water molecules and a hydrophobic cavity on controlling the thermodynamics and kinetics of the CuII/CuI electron transfer process.
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Affiliation(s)
- Nicolas Le Poul
- Laboratoire de Chimie , Electrochimie Moléculaires et Chimie Analytique , UMR CNRS 6521 , Université de Brest , 29238 Brest , France . ; ; ; ; ;
| | - Benoit Colasson
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques , UMR CNRS 8601 , Université Paris Descartes , 75006 Paris , France . ;
| | - Grégory Thiabaud
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques , UMR CNRS 8601 , Université Paris Descartes , 75006 Paris , France . ;
| | - Dany Jeanne Dit Fouque
- Laboratoire de Chimie , Electrochimie Moléculaires et Chimie Analytique , UMR CNRS 6521 , Université de Brest , 29238 Brest , France . ; ; ; ; ;
| | - Claudio Iacobucci
- Laboratoire de Chimie , Electrochimie Moléculaires et Chimie Analytique , UMR CNRS 6521 , Université de Brest , 29238 Brest , France . ; ; ; ; ;
| | - Antony Memboeuf
- Laboratoire de Chimie , Electrochimie Moléculaires et Chimie Analytique , UMR CNRS 6521 , Université de Brest , 29238 Brest , France . ; ; ; ; ;
| | - Bénédicte Douziech
- Laboratoire de Chimie , Electrochimie Moléculaires et Chimie Analytique , UMR CNRS 6521 , Université de Brest , 29238 Brest , France . ; ; ; ; ;
| | - Jan Řezáč
- Institute of Organic Chemistry and Biochemistry , Academy of Sciences of the Czech Republic , Flemingovonám. 2 , 166 10 Prague 6 , Czech Republic .
| | - Thierry Prangé
- Laboratoire de Cristallographie et de Résonance Magnétique Nucléaire , Biologiques (CNRS UMR 8015) , Université Paris Descartes , 4, Avenue de l'Observatoire , 75006 Paris , France .
| | - Aurélien de la Lande
- Laboratoire de Chimie Physique , UMR CNRS 8000 , Université Paris Sud , 91405 Orsay , France .
| | - Olivia Reinaud
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques , UMR CNRS 8601 , Université Paris Descartes , 75006 Paris , France . ;
| | - Yves Le Mest
- Laboratoire de Chimie , Electrochimie Moléculaires et Chimie Analytique , UMR CNRS 6521 , Université de Brest , 29238 Brest , France . ; ; ; ; ;
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7
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Mateus P, Wicher B, Ferrand Y, Huc I. Carbohydrate binding through first- and second-sphere coordination within aromatic oligoamide metallofoldamers. Chem Commun (Camb) 2018; 54:5078-5081. [PMID: 29707723 DOI: 10.1039/c8cc02360c] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Aromatic oligoamide capsules that fold upon metal binding recognize carbohydrate guests in solution as evidenced by CD and NMR titrations. Crystallographic data reveal that, besides their structural role, metal ions also contribute to guest recognition through either first- or second-sphere coordination.
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Affiliation(s)
- Pedro Mateus
- Université de Bordeaux, CNRS, Bordeaux Institut National Polytechnique, CBMN (UMR 5248), IECB, 2 rue Robert Escarpit, F-33600 Pessac, France.
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8
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Cioncoloni G, Roger I, Wheatley PS, Wilson C, Morris RE, Sproules S, Symes MD. Proton-Coupled Electron Transfer Enhances the Electrocatalytic Reduction of Nitrite to NO in a Bioinspired Copper Complex. ACS Catal 2018. [DOI: 10.1021/acscatal.8b00361] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Giacomo Cioncoloni
- WestCHEM, School of Chemistry, University of Glasgow, University Avenue, Glasgow G12 8QQ, United Kingdom
| | - Isolda Roger
- WestCHEM, School of Chemistry, University of Glasgow, University Avenue, Glasgow G12 8QQ, United Kingdom
| | - Paul S. Wheatley
- EaStCHEM School of Chemistry, University of St Andrews, Purdie Building, St Andrews KY16 9ST, United Kingdom
| | - Claire Wilson
- WestCHEM, School of Chemistry, University of Glasgow, University Avenue, Glasgow G12 8QQ, United Kingdom
| | - Russell E. Morris
- EaStCHEM School of Chemistry, University of St Andrews, Purdie Building, St Andrews KY16 9ST, United Kingdom
| | - Stephen Sproules
- WestCHEM, School of Chemistry, University of Glasgow, University Avenue, Glasgow G12 8QQ, United Kingdom
| | - Mark D. Symes
- WestCHEM, School of Chemistry, University of Glasgow, University Avenue, Glasgow G12 8QQ, United Kingdom
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9
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Inthasot A, Le Poul N, Luhmer M, Colasson B, Jabin I, Reinaud O. Selective EPR Detection of Primary Amines in Water with a Calix[6]azacryptand-Based Copper(II) Funnel Complex. Inorg Chem 2018; 57:3646-3655. [DOI: 10.1021/acs.inorgchem.7b02541] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Alex Inthasot
- Laboratoire de Chimie Organique, Université Libre de Bruxelles (U.L.B.), Avenue F.D. Roosevelt 50, CP160/06, B-1050 Brussels, Belgium
- Laboratoire de Résonance Magnétique Nucléaire Haute Résolution, Université Libre de Bruxelles (U.L.B.), Avenue F.D. Roosevelt 50, CP160/08, B-1050 Brussels, Belgium
- Laboratoire de Chimie et de Biochimie Pharmacologiques et Toxicologiques (CNRS UMR 8601), Université Paris Descartes Sorbonne Paris Cité, 45 rue des Saints-Pères, 75006 Paris, France
| | - Nicolas Le Poul
- Laboratoire de Chimie, Electrochimie Moléculaires et Chimie Analytique (CNRS UMR 6521), Université de Brest, 6 avenue Le Gorgeu, 29238 Brest Cedex 3, France
| | - Michel Luhmer
- Laboratoire de Résonance Magnétique Nucléaire Haute Résolution, Université Libre de Bruxelles (U.L.B.), Avenue F.D. Roosevelt 50, CP160/08, B-1050 Brussels, Belgium
| | - Benoit Colasson
- Laboratoire de Chimie et de Biochimie Pharmacologiques et Toxicologiques (CNRS UMR 8601), Université Paris Descartes Sorbonne Paris Cité, 45 rue des Saints-Pères, 75006 Paris, France
| | - Ivan Jabin
- Laboratoire de Chimie Organique, Université Libre de Bruxelles (U.L.B.), Avenue F.D. Roosevelt 50, CP160/06, B-1050 Brussels, Belgium
| | - Olivia Reinaud
- Laboratoire de Chimie et de Biochimie Pharmacologiques et Toxicologiques (CNRS UMR 8601), Université Paris Descartes Sorbonne Paris Cité, 45 rue des Saints-Pères, 75006 Paris, France
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10
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Sliusarenko OY, Oleinick AI, Svir IB, Amatore CA. Importance of stochastic limitations in electrochemistry at arrays of nanoelectrodes functionalized by redox self-assembled monolayers. RUSS J ELECTROCHEM+ 2017. [DOI: 10.1134/s1023193517090129] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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11
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Horeau M, Lautrette G, Wicher B, Blot V, Lebreton J, Pipelier M, Dubreuil D, Ferrand Y, Huc I. Metal-Coordination-Assisted Folding and Guest Binding in Helical Aromatic Oligoamide Molecular Capsules. Angew Chem Int Ed Engl 2017; 56:6823-6827. [PMID: 28471081 DOI: 10.1002/anie.201701693] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Indexed: 11/07/2022]
Abstract
The development of foldamer-based receptors is driven by the design of monomers with specific properties. Herein, we introduce a pyridazine-pyridine-pyridazine diacid monomer and its incorporation into helical aromatic oligoamide foldamer containers. This monomer codes for a wide helix diameter and can sequester metal ions on the inner wall of the helix cavity. Crystallographic studies and NMR titrations show that part of the metal coordination sphere remains available and may then promote the binding of a guest within the cavity. In addition to metal coordination, binding of the guest is assisted by cooperative interactions with the helix host, thereby resulting in significant enhancements depending on the foldamer sequence, and in slow guest capture and release on the NMR time scale. In the absence of metal ions, the pyridazine-pyridine-pyridazine monomer promotes an extended conformation of the foldamer that results in aggregation, including the formation of an intertwined duplex.
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Affiliation(s)
- Maxime Horeau
- UMR 6230-CEISAM, Univ. Nantes-CNRS, Faculté des Sciences et des Techniques, 2 rue de la Houssinière, BP 92208, 44322, Nantes Cedex 3, France
| | - Guillaume Lautrette
- UMR 5248-CBMN, Univ. Bordeaux-CNRS-Institut Polytechnique de Bordeaux, Institut Européen de Chimie et Biologie, 2 rue Robert Escarpit, 33600, Pessac, France
| | - Barbara Wicher
- UMR 5248-CBMN, Univ. Bordeaux-CNRS-Institut Polytechnique de Bordeaux, Institut Européen de Chimie et Biologie, 2 rue Robert Escarpit, 33600, Pessac, France
| | - Virginie Blot
- UMR 6230-CEISAM, Univ. Nantes-CNRS, Faculté des Sciences et des Techniques, 2 rue de la Houssinière, BP 92208, 44322, Nantes Cedex 3, France
| | - Jacques Lebreton
- UMR 6230-CEISAM, Univ. Nantes-CNRS, Faculté des Sciences et des Techniques, 2 rue de la Houssinière, BP 92208, 44322, Nantes Cedex 3, France
| | - Muriel Pipelier
- UMR 6230-CEISAM, Univ. Nantes-CNRS, Faculté des Sciences et des Techniques, 2 rue de la Houssinière, BP 92208, 44322, Nantes Cedex 3, France
| | - Didier Dubreuil
- UMR 6230-CEISAM, Univ. Nantes-CNRS, Faculté des Sciences et des Techniques, 2 rue de la Houssinière, BP 92208, 44322, Nantes Cedex 3, France
| | - Yann Ferrand
- UMR 5248-CBMN, Univ. Bordeaux-CNRS-Institut Polytechnique de Bordeaux, Institut Européen de Chimie et Biologie, 2 rue Robert Escarpit, 33600, Pessac, France
| | - Ivan Huc
- UMR 5248-CBMN, Univ. Bordeaux-CNRS-Institut Polytechnique de Bordeaux, Institut Européen de Chimie et Biologie, 2 rue Robert Escarpit, 33600, Pessac, France
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12
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Horeau M, Lautrette G, Wicher B, Blot V, Lebreton J, Pipelier M, Dubreuil D, Ferrand Y, Huc I. Metal-Coordination-Assisted Folding and Guest Binding in Helical Aromatic Oligoamide Molecular Capsules. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201701693] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Maxime Horeau
- UMR 6230-CEISAM; Univ. Nantes-CNRS; Faculté des Sciences et des Techniques; 2 rue de la Houssinière, BP 92208 44322 Nantes Cedex 3 France
| | - Guillaume Lautrette
- UMR 5248-CBMN; Univ. Bordeaux-CNRS-Institut Polytechnique de Bordeaux; Institut Européen de Chimie et Biologie; 2 rue Robert Escarpit 33600 Pessac France
| | - Barbara Wicher
- UMR 5248-CBMN; Univ. Bordeaux-CNRS-Institut Polytechnique de Bordeaux; Institut Européen de Chimie et Biologie; 2 rue Robert Escarpit 33600 Pessac France
| | - Virginie Blot
- UMR 6230-CEISAM; Univ. Nantes-CNRS; Faculté des Sciences et des Techniques; 2 rue de la Houssinière, BP 92208 44322 Nantes Cedex 3 France
| | - Jacques Lebreton
- UMR 6230-CEISAM; Univ. Nantes-CNRS; Faculté des Sciences et des Techniques; 2 rue de la Houssinière, BP 92208 44322 Nantes Cedex 3 France
| | - Muriel Pipelier
- UMR 6230-CEISAM; Univ. Nantes-CNRS; Faculté des Sciences et des Techniques; 2 rue de la Houssinière, BP 92208 44322 Nantes Cedex 3 France
| | - Didier Dubreuil
- UMR 6230-CEISAM; Univ. Nantes-CNRS; Faculté des Sciences et des Techniques; 2 rue de la Houssinière, BP 92208 44322 Nantes Cedex 3 France
| | - Yann Ferrand
- UMR 5248-CBMN; Univ. Bordeaux-CNRS-Institut Polytechnique de Bordeaux; Institut Européen de Chimie et Biologie; 2 rue Robert Escarpit 33600 Pessac France
| | - Ivan Huc
- UMR 5248-CBMN; Univ. Bordeaux-CNRS-Institut Polytechnique de Bordeaux; Institut Européen de Chimie et Biologie; 2 rue Robert Escarpit 33600 Pessac France
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13
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Oliveira R, Zouari W, Herrero C, Banse F, Schöllhorn B, Fave C, Anxolabéhère-Mallart E. Characterization and Subsequent Reactivity of an Fe-Peroxo Porphyrin Generated by Electrochemical Reductive Activation of O 2. Inorg Chem 2016; 55:12204-12210. [PMID: 27934428 DOI: 10.1021/acs.inorgchem.6b01804] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Reductive activation of O2 is achieved by using the [FeIII(F20TPP)Cl] (F20TPP = 5,10,15,20-tetrakis(pentafluorophenyl) porphyrinate) porphyrin through electrochemical reduction of the [FeIII(F20TPP)(O2•-)] superoxo complex. Formation of the [FeIII(F20TPP)(OO)]- peroxo species is monitored by using low-temperature electronic absorption spectroscopy, electron paramagnetic resonance, and cyclic voltammetry. Its subsequent protonation to yield the [FeIII(F20TPP)(OOH)] hydroperoxo intermediate is probed using low-temperature electronic absorption spectroscopy and electron paramagnetic resonance.
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Affiliation(s)
- Raquel Oliveira
- Laboratoire d'Electrochimie Moléculaire, Université Paris Diderot, Université Sorbonne Paris Cité, UMR CNRS 7591 , 75205 PARIS Cedex 13, France
| | - Wiem Zouari
- Laboratoire d'Electrochimie Moléculaire, Université Paris Diderot, Université Sorbonne Paris Cité, UMR CNRS 7591 , 75205 PARIS Cedex 13, France
| | - Christian Herrero
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, Université Paris Sud, Université Paris Saclay, UMR CNRS 8182 , 91405 Orsay Cedex, France
| | - Frédéric Banse
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, Université Paris Sud, Université Paris Saclay, UMR CNRS 8182 , 91405 Orsay Cedex, France
| | - Bernd Schöllhorn
- Laboratoire d'Electrochimie Moléculaire, Université Paris Diderot, Université Sorbonne Paris Cité, UMR CNRS 7591 , 75205 PARIS Cedex 13, France
| | - Claire Fave
- Laboratoire d'Electrochimie Moléculaire, Université Paris Diderot, Université Sorbonne Paris Cité, UMR CNRS 7591 , 75205 PARIS Cedex 13, France
| | - Elodie Anxolabéhère-Mallart
- Laboratoire d'Electrochimie Moléculaire, Université Paris Diderot, Université Sorbonne Paris Cité, UMR CNRS 7591 , 75205 PARIS Cedex 13, France
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14
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De Leener G, Evoung-Evoung F, Lascaux A, Mertens J, Porras-Gutierrez AG, Le Poul N, Lagrost C, Over D, Leroux YR, Reniers F, Hapiot P, Le Mest Y, Jabin I, Reinaud O. Immobilization of Monolayers Incorporating Cu Funnel Complexes onto Gold Electrodes. Application to the Selective Electrochemical Recognition of Primary Alkylamines in Water. J Am Chem Soc 2016; 138:12841-12853. [DOI: 10.1021/jacs.6b05317] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Gaël De Leener
- Laboratoire
de Chimie Organique, Université libre de Bruxelles (ULB), Avenue
F. D. Roosevelt 50 CP160/06, B-1050 Brussels, Belgium
- Laboratoire
de Chimie et de Biochimie Pharmacologiques et Toxicologiques, Université Paris Descartes, Sorbonne Paris Cité, CNRS UMR 8601, 45 rue des Saints Pères, 75006 Paris, France
| | - Ferdinand Evoung-Evoung
- CNRS
UMR 6521, Université de Bretagne Occidentale, 6 Avenue
Le Gorgeu, CS 93837, 29238 Brest, France
| | - Angélique Lascaux
- Laboratoire
de Chimie Organique, Université libre de Bruxelles (ULB), Avenue
F. D. Roosevelt 50 CP160/06, B-1050 Brussels, Belgium
| | - Jeremy Mertens
- Chimie
Analytique et Chimie des Interfaces, Université libre de Bruxelles (ULB), CP 255, Campus de la Plaine, Boulevard du Triomphe, B-1050 Brussels, Belgium
| | | | - Nicolas Le Poul
- CNRS
UMR 6521, Université de Bretagne Occidentale, 6 Avenue
Le Gorgeu, CS 93837, 29238 Brest, France
| | - Corinne Lagrost
- Institut
des Sciences Chimiques de Rennes, UMR CNRS 6226, Université de Rennes 1, Campus de Beaulieu, 35042 Rennes, France
| | - Diana Over
- Laboratoire
de Chimie et de Biochimie Pharmacologiques et Toxicologiques, Université Paris Descartes, Sorbonne Paris Cité, CNRS UMR 8601, 45 rue des Saints Pères, 75006 Paris, France
| | - Yann R. Leroux
- Institut
des Sciences Chimiques de Rennes, UMR CNRS 6226, Université de Rennes 1, Campus de Beaulieu, 35042 Rennes, France
| | - François Reniers
- Chimie
Analytique et Chimie des Interfaces, Université libre de Bruxelles (ULB), CP 255, Campus de la Plaine, Boulevard du Triomphe, B-1050 Brussels, Belgium
| | - Philippe Hapiot
- Institut
des Sciences Chimiques de Rennes, UMR CNRS 6226, Université de Rennes 1, Campus de Beaulieu, 35042 Rennes, France
| | - Yves Le Mest
- CNRS
UMR 6521, Université de Bretagne Occidentale, 6 Avenue
Le Gorgeu, CS 93837, 29238 Brest, France
| | - Ivan Jabin
- Laboratoire
de Chimie Organique, Université libre de Bruxelles (ULB), Avenue
F. D. Roosevelt 50 CP160/06, B-1050 Brussels, Belgium
| | - Olivia Reinaud
- Laboratoire
de Chimie et de Biochimie Pharmacologiques et Toxicologiques, Université Paris Descartes, Sorbonne Paris Cité, CNRS UMR 8601, 45 rue des Saints Pères, 75006 Paris, France
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15
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Le Fur M, Beyler M, Le Poul N, Lima LMP, Le Mest Y, Delgado R, Platas-Iglesias C, Patinec V, Tripier R. Improving the stability and inertness of Cu(ii) and Cu(i) complexes with methylthiazolyl ligands by tuning the macrocyclic structure. Dalton Trans 2016; 45:7406-20. [PMID: 27041505 DOI: 10.1039/c6dt00385k] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A tacn based ligand bearing two methylthiazolyl arms (no2th) was synthesized with the aim to find ligands forming very stable and inert complexes with Cu(ii) and Cu(i) in aqueous medium for radiopharmaceutical applications. The no2th ligand was efficiently prepared following the orthoamide intermediate synthesis. The complexes with Cu(2+) and Zn(2+) were obtained and analyzed by X-ray diffraction. The [Cu(no2th)](2+) complex presents a pentacoordinated distorted square pyramidal coordination geometry, while the metal ion in [Zn(no2th)](2+) adopts a hexacoordinated distorted trigonal prismatic geometry involving the coordination of a perchlorate counter ion. The acid-base properties of no2th have been studied using potentiometric titrations, and the stability constants of Cu(2+) and Zn(2+) complexes were determined by potentiometric and UV-vis titrations using H4edta as a competitor ligand. The stability constant determined for the Cu(2+) complex is rather high (log KCuL = 20.77 and pCu = 17.15), and moreover no2th exhibits a high selectivity for copper(ii) in relation to zinc(ii). The kinetics of the copper(ii) complexation process is very fast even in acidic medium. In addition, the [Cu(no2th)](2+) complex was found to be inert under rather harsh conditions (up to 2 M HCl and 60 °C), displaying a very high half-life time of about 15 days in 2 M HCl at 90 °C. The electrochemical reduction of the copper(ii) complex in water leads to the reversible formation of a stable copper(i) species. Spectroscopic studies performed by NMR, UV-vis and EPR, assisted by theoretical calculations, show that the [Cu(no2th)](2+) complex presents a structure in solution similar to that observed in the solid state. When compared to its cyclam di-N-methylthiazolyl counterpart, the results reported in this paper unambiguously show that replacing the cyclam unit by a tacn moiety improves the stability and inertness of its Cu(ii) and Cu(i) complexes.
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Affiliation(s)
- Mariane Le Fur
- Université de Bretagne Occidentale, UMR-CNRS 6521, SFR ScInBioS, Faculté des Sciences et Techniques, 6 avenue Victor le Gorgeu, C.S. 93837, 29238 Brest Cedex 3, France.
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16
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Le Poul N, Le Mest Y, Jabin I, Reinaud O. Supramolecular modeling of mono-copper enzyme active sites with calix[6]arene-based funnel complexes. Acc Chem Res 2015; 48:2097-106. [PMID: 26103534 DOI: 10.1021/acs.accounts.5b00152] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Supramolecular bioinorganic chemistry is a natural evolution in biomimetic metallic systems since it constitutes a further degree of complexity in modeling. The traditional approach consisting of mimicking the first coordination sphere of metal sites proved to be very efficient, because valuable data are extracted from these examples to gain insight in natural systems mechanisms. But it does not reproduce several specific aspects of enzymes that can be mimicked by the implementation of a cavity embedding the labile active site and thus controlling the properties of the metal ion by noncovalent interactions. This Account reports on a strategy aimed at reproducing some supramolecular aspects encountered in the natural systems. The cavity complexes described herein display a coordination site constructed on a macrocycle. Thanks to a careful design of the cavity-based ligands, complexes orienting their labile site specifically toward the inside of the macrocycle were obtained. The supramolecular systems are based on the flexible calix[6]arene core that surrounds the metal ion labile site, thereby constraining exogenous molecules to pass through the conic funnel to reach the metal center. Such an architecture confers to the metal ion very unusual properties and behaviors, which in many aspects are biologically relevant. Three generations of calix[6]-based ligands are presented and discussed in the context of modeling the monocopper sites encountered in some enzymes. A wide range of phenomena are highlighted such as the impact that the size and shape of the access channel to the metal center have on the selectivity and rate of the binding process, the possible remote control of the electronics through small modifications operated on the cavity edges, induced-fit behavior associated with host-guest association (shoe-tree effect) that affects the redox properties of the metal ion and the electron exchange pathway, consequences of forbidden associative ligand exchange allowing a redox switch to drive an "antithermodynamic" ligand exchange, drastic effects of the full control of the second coordination sphere, and dioxygen activation in a confined chamber conducted to a selective and unusual four-electron redox process. All these findings bring new clues for better understanding the control exerted by the proteic environment on a metal center, allow the identification of new reaction pathways, and lead to new proposals for enzymatic catalytic cycle (such as the formation of an alkylhydroperoxide intermediate for mononuclear Cu-hydroxylases). The supramolecular systems may also be exploited for designing highly selective and sensitive probes for molecules of particular function and shape or to design new selective catalysts.
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Affiliation(s)
- Nicolas Le Poul
- Laboratoire de Chimie,
Electrochimie Moléculaires et Chimie Analytique, CNRS UMR 6521, Université de Bretagne Occidentale, 6 Avenue Le Gorgeu, 29238 Brest, France
| | - Yves Le Mest
- Laboratoire de Chimie,
Electrochimie Moléculaires et Chimie Analytique, CNRS UMR 6521, Université de Bretagne Occidentale, 6 Avenue Le Gorgeu, 29238 Brest, France
| | - Ivan Jabin
- Laboratoire de Chimie Organique, Université Libre de Bruxelles (ULB), Avenue F. Roosevelt 50, CP160/06, B-1050 Brussels, Belgium
| | - Olivia Reinaud
- Laboratoire de Chimie et de Biochimie Pharmacologiques
et Toxicologiques, Sorbonne Paris Cité, Université Paris Descartes, CNRS UMR 8601, 45 Rue des Saints Pères, 75006 Paris, France
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17
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Zhao Y, Swager TM. Functionalized Metalated Cavitands via Imidation and Late-Stage Elaboration. European J Org Chem 2015; 2015:4593-4597. [DOI: 10.1002/ejoc.201500714] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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18
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Wu Y, Ni XL, Mou L, Jin CC, Redshaw C, Yamato T. Synthesis of a ditopic homooxacalix[3]arene for fluorescence enhanced detection of heavy and transition metal ions. Supramol Chem 2015. [DOI: 10.1080/10610278.2014.1002841] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Yanan Wu
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang550025, P.R. China
| | - Xin-Long Ni
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang550025, P.R. China
| | - Lan Mou
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang550025, P.R. China
| | - Cheng-Cheng Jin
- Department of Applied Chemistry, Faculty of Science and Engineering, Saga University, Honjo-machi 1, Saga-shi, Saga840-8502, Japan
| | - Carl Redshaw
- Department of Chemistry, University of Hull, HullHU6 7RX, UK
| | - Takehiko Yamato
- Department of Applied Chemistry, Faculty of Science and Engineering, Saga University, Honjo-machi 1, Saga-shi, Saga840-8502, Japan
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19
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Islam MM, Tomiyasu H, Matsumoto T, Tanaka J, Rahman S, Georghiou PE, Redshaw C, Yamato T. Synthesis and conformational studies of chiral macrocyclic [1.1.1]metacyclophanes containing benzofuran rings. Org Biomol Chem 2015. [DOI: 10.1039/c5ob01002k] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel hemisphere-shaped inherently chiral calixarene analogoue [1.1.1]metacyclophane containing both benzene and benzofuran rings was synthesized by fragment coupling approach.
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Affiliation(s)
- Md. Monarul Islam
- Department of Applied Chemistry
- Faculty of Science and Engineering
- Saga University
- Saga-shi
- Japan
| | - Hirotsugu Tomiyasu
- Department of Applied Chemistry
- Faculty of Science and Engineering
- Saga University
- Saga-shi
- Japan
| | - Taisuke Matsumoto
- Institute of Material Chemistry and Engineering
- Kyushu University
- Kasuga 816-8580
- Japan
| | - Junji Tanaka
- Institute of Material Chemistry and Engineering
- Kyushu University
- Kasuga 816-8580
- Japan
| | - Shofiur Rahman
- Department of Chemistry
- Memorial University of Newfoundland
- St. John's
- Canada
| | - Paris E. Georghiou
- Department of Chemistry
- Memorial University of Newfoundland
- St. John's
- Canada
| | - Carl Redshaw
- Department of Chemistry
- The University of Hull
- Hull
- UK
| | - Takehiko Yamato
- Department of Applied Chemistry
- Faculty of Science and Engineering
- Saga University
- Saga-shi
- Japan
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20
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Rebilly JN, Colasson B, Bistri O, Over D, Reinaud O. Biomimetic cavity-based metal complexes. Chem Soc Rev 2015; 44:467-89. [DOI: 10.1039/c4cs00211c] [Citation(s) in RCA: 137] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The biomimetic association of a metal ion with a cavity allows selective recognition, unusual redox properties and new reactivity patterns.
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Affiliation(s)
- Jean-Noël Rebilly
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques
- UMR CNRS 8601
- Université Paris Descartes
- Sorbonne Paris Cité
- 75006 Paris
| | - Benoit Colasson
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques
- UMR CNRS 8601
- Université Paris Descartes
- Sorbonne Paris Cité
- 75006 Paris
| | - Olivia Bistri
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques
- UMR CNRS 8601
- Université Paris Descartes
- Sorbonne Paris Cité
- 75006 Paris
| | - Diana Over
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques
- UMR CNRS 8601
- Université Paris Descartes
- Sorbonne Paris Cité
- 75006 Paris
| | - Olivia Reinaud
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques
- UMR CNRS 8601
- Université Paris Descartes
- Sorbonne Paris Cité
- 75006 Paris
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21
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Ho YH, Chang MC, Yu KH, Liu YH, Wang Y, Cheng YC, Chen JT. CO₂ fixation by dicopper(II) complexes in hypodentate framework of N₈O₂. Dalton Trans 2014; 43:6287-90. [PMID: 24626523 DOI: 10.1039/c3dt53497a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
A new ligand with N8O2 donors containing three potential metal-binding sites (H₂L) and its tricopper(II) complex 1 are synthesized. The tricopper species is found to be formed from a hypodentate dicopper(II) complex 2 in basic solutions. Complex 2 may be isolated from the reaction of H₂L with a copper source under acidic conditions. Complex 2 can undergo CO2-abstraction to yield an octacopper(II) complex 3. The single crystal structures of complexes 2 and 3 are characterized by X-ray crystallography.
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Affiliation(s)
- Yi-Hsueh Ho
- Department of Chemistry, National Taiwan University, Taipei 106, Taiwan.
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22
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Zhao Y, Markopoulos G, Swager TM. ¹⁹F NMR fingerprints: identification of neutral organic compounds in a molecular container. J Am Chem Soc 2014; 136:10683-90. [PMID: 25051051 PMCID: PMC4120996 DOI: 10.1021/ja504110f] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Improved methods for quickly identifying neutral organic compounds and differentiation of analytes with similar chemical structures are widely needed. We report a new approach to effectively "fingerprint" neutral organic molecules by using (19)F NMR and molecular containers. The encapsulation of analytes induces characteristic up- or downfield shifts of (19)F resonances that can be used as multidimensional parameters to fingerprint each analyte. The strategy can be achieved either with an array of fluorinated receptors or by incorporating multiple nonequivalent fluorine atoms in a single receptor. Spatial proximity of the analyte to the (19)F is important to induce the most pronounced NMR shifts and is crucial in the differentiation of analytes with similar structures. This new scheme allows for the precise and simultaneous identification of multiple analytes in a complex mixture.
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Affiliation(s)
- Yanchuan Zhao
- Department of Chemistry, Massachusetts Institute of Technology , Cambridge, Massachusetts 02139, United States
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23
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Gout J, Višnjevac A, Rat S, Parrot A, Hessani A, Bistri O, Le Poul N, Le Mest Y, Reinaud O. Supramolecular Control of a Mononuclear Biomimetic Copper(II) Center: Bowl Complexes vs Funnel Complexes. Inorg Chem 2014; 53:6224-34. [DOI: 10.1021/ic500740r] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Jérôme Gout
- Laboratoire
de Chimie et de Biochimie Pharmacologiques et Toxicologiques, Sorbonne
Paris Cité, Université Paris Descartes, CNRS UMR 8601, 45 Rue des Saints Pères, 75006 Paris, France
| | - Aleksandar Višnjevac
- Physical
Chemistry Division, Ruđer Bošković Institute, Bijenička
cesta 54, HR-10000 Zagreb, Croatia
| | - Stéphanie Rat
- Laboratoire
de Chimie et de Biochimie Pharmacologiques et Toxicologiques, Sorbonne
Paris Cité, Université Paris Descartes, CNRS UMR 8601, 45 Rue des Saints Pères, 75006 Paris, France
| | - Arnaud Parrot
- Laboratoire
de Chimie et de Biochimie Pharmacologiques et Toxicologiques, Sorbonne
Paris Cité, Université Paris Descartes, CNRS UMR 8601, 45 Rue des Saints Pères, 75006 Paris, France
| | - Assia Hessani
- Laboratoire
de Chimie et de Biochimie Pharmacologiques et Toxicologiques, Sorbonne
Paris Cité, Université Paris Descartes, CNRS UMR 8601, 45 Rue des Saints Pères, 75006 Paris, France
| | - Olivia Bistri
- Laboratoire
de Chimie et de Biochimie Pharmacologiques et Toxicologiques, Sorbonne
Paris Cité, Université Paris Descartes, CNRS UMR 8601, 45 Rue des Saints Pères, 75006 Paris, France
| | - Nicolas Le Poul
- Laboratoire
de Chimie, Electrochimie Moléculaires et Chimie Analytique, UMR CNRS 6521, Université de Bretagne Occidentale, 6 Avenue Le Gorgeu, 29238 Brest Cedex, France
| | - Yves Le Mest
- Laboratoire
de Chimie, Electrochimie Moléculaires et Chimie Analytique, UMR CNRS 6521, Université de Bretagne Occidentale, 6 Avenue Le Gorgeu, 29238 Brest Cedex, France
| | - Olivia Reinaud
- Laboratoire
de Chimie et de Biochimie Pharmacologiques et Toxicologiques, Sorbonne
Paris Cité, Université Paris Descartes, CNRS UMR 8601, 45 Rue des Saints Pères, 75006 Paris, France
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24
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Lhenry S, Leroux YR, Orain C, Conan F, Cosquer N, Le Poul N, Reinaud O, Le Mest Y, Hapiot P. Locally induced and self-induced "electroclick" onto a self-assembled monolayer: writing and reading with SECM under unbiased conditions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:4501-4508. [PMID: 24673288 DOI: 10.1021/la405005f] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Localized "electroclick" was achieved on azido-terminated self-assembled monolayers using Scanning Electrochemical Microscopy (SECM) in feedback mode, in which the substrate is not electrically connected (unbiased conditions). The method allows both the local immobilization of diverse functional moieties and the monitoring of each modification step at a micrometer scale. Conditions of the "click" coupling reaction were optimized especially to avoid the deposit of metallic copper by the choice of a specific ligand to stabilize the Cu(I) species. The catalytic efficiency in localized "electroclick" reaction of Cu(II)TMPA (TMPA: tris(2-pyridylmethyl)amine) as the "click" catalyst was compared with a derivative containing an alkyne group Cu(II)6eTMPA, the same molecule playing the role of the catalyst and the substrate. Evidences for surface self-catalysis propagation are demonstrated through SECM imaging showing a random 2D progression of the catalytic modification.
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Affiliation(s)
- Sébastien Lhenry
- Institut des Sciences Chimiques de Rennes (Equipe MaCSE), CNRS, UMR 6226, Université de Rennes 1 , Campus de Beaulieu, Bat 10C, 35042 Rennes Cedex, France
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25
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Affiliation(s)
- Jean-Noël Rebilly
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, CNRS UMR 8601, PRES Sorbonne Paris Cité, Université Paris Descartes, 45 rue des Saints Pères, 75006 Paris, France
| | - Olivia Reinaud
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, CNRS UMR 8601, PRES Sorbonne Paris Cité, Université Paris Descartes, 45 rue des Saints Pères, 75006 Paris, France
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26
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Aza and cyanobridged tripodal dinuclear copper(II) complexes: Electrochemical studies and structural evidence for an original azacyanocarbanion. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2013.11.024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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27
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Porras Gutiérrez AG, Zeitouny J, Gomila A, Douziech B, Cosquer N, Conan F, Reinaud O, Hapiot P, Le Mest Y, Lagrost C, Le Poul N. Insights into water coordination associated with the CuII/CuI electron transfer at a biomimetic Cu centre. Dalton Trans 2014; 43:6436-45. [DOI: 10.1039/c3dt53548g] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The coordination chemistry of an aqua Cu complex was investigated in non-coordinating solvents and in ionic liquids.
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Over D, Zeng X, Bornholdt C, Marrot J, Reinaud O. Coordination of lead(II) in the supramolecular environment provided by a "two-story" calix[6]arene-based N6 ligand. Inorg Chem 2013; 52:14089-95. [PMID: 24256339 DOI: 10.1021/ic4018486] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
First insights into the coordination properties and host-guest behavior of a "two story" calix[6]aza-cryptand (1) are described. The ligand is constituted of a triazacyclononane (TACN) cap and three pyridine (PY) spacers connected to the calix[6]arene small rim. The resulting N6 donor site coordinates Pb(II) ions to give complexes that are highly stable. X-ray diffraction structures reveal a hemidirected environment for Pb(II) with strong coordination to the TACN cap and weaker bonds with the three PY residues. A guest molecule, either water or EtOH, sitting in the calixarene macrocycle and hydrogen-bonded to the phenoxyl units at the level of the small rim further stabilizes the complexes through electrostatic interactions with the metal center and the calixarene core. In-depth (1)H NMR studies confirm the host-guest behavior of the complexes in solution, with evidence of embedment of neutral guest molecules such as EtOH, BuOH, and N-Me-formamide. Hence, in spite of the presence of a N6 donor, the calixarene macrocycle can be open to guest interaction, giving rise to seven-coordinate dicationic complexes. Noteworthy also is the flexibility of the macrocycle that allows Pb(II) to adopt its preferred hemidirected environment in spite of the three covalent links connecting the calixarene core to the three PY groups. The flexibility of the system is further illustrated by the possible coordination of an exogenous anionic ligand in the exo position. Hence, compared to the previously described "one story" calix[6]aza-cryptands, ligand 1 displays several similar but also new features that are discussed.
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Affiliation(s)
- Diana Over
- Laboratoire de Chimie et de Biochimie Pharmacologiques et Toxicologiques, Université Paris Descartes, PRES Sorbonne Paris Cité, CNRS UMR 8601 , 45 rue des Saints Pères, 75006 Paris, France
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Gramage-Doria R, Armspach D, Matt D. Metallated cavitands (calixarenes, resorcinarenes, cyclodextrins) with internal coordination sites. Coord Chem Rev 2013. [DOI: 10.1016/j.ccr.2012.10.006] [Citation(s) in RCA: 110] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Sharma R, Margani R, Mobin SM, Misra R. Ferrocenyl substituted calixarenes: synthesis, structure and properties. RSC Adv 2013. [DOI: 10.1039/c3ra00146f] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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Gomila A, Le Poul N, Kerbaol JM, Cosquer N, Triki S, Douziech B, Conan F, Le Mest Y. Electrochemical behavior and dioxygen reactivity of tripodal dinuclear copper complexes linked by unsaturated rigid spacers. Dalton Trans 2013; 42:2238-53. [DOI: 10.1039/c2dt31456h] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Thiabaud G, Brugnara A, Carboni M, Le Poul N, Colasson B, Le Mest Y, Reinaud O. Synthesis and Studies of a Water-Soluble and Air-Stable CuI/CuII Open-Shell Funnel Complex. Org Lett 2012; 14:2500-3. [DOI: 10.1021/ol3007875] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Grégory Thiabaud
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, CNRS UMR 8601, PRES Sorbonne Paris Cité, Université Paris Descartes, 45 rue des Saints Pères, 75006 Paris, France, and Laboratoire de Chimie, Electrochimie Moléculaires et Chimie Analytique, CNRS UMR 6521, Université Européenne de Bretagne à Brest, CS 93837, 6 avenue Le Gorgeu, 29238 Brest Cedex 3, France
| | - Andrea Brugnara
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, CNRS UMR 8601, PRES Sorbonne Paris Cité, Université Paris Descartes, 45 rue des Saints Pères, 75006 Paris, France, and Laboratoire de Chimie, Electrochimie Moléculaires et Chimie Analytique, CNRS UMR 6521, Université Européenne de Bretagne à Brest, CS 93837, 6 avenue Le Gorgeu, 29238 Brest Cedex 3, France
| | - Michael Carboni
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, CNRS UMR 8601, PRES Sorbonne Paris Cité, Université Paris Descartes, 45 rue des Saints Pères, 75006 Paris, France, and Laboratoire de Chimie, Electrochimie Moléculaires et Chimie Analytique, CNRS UMR 6521, Université Européenne de Bretagne à Brest, CS 93837, 6 avenue Le Gorgeu, 29238 Brest Cedex 3, France
| | - Nicolas Le Poul
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, CNRS UMR 8601, PRES Sorbonne Paris Cité, Université Paris Descartes, 45 rue des Saints Pères, 75006 Paris, France, and Laboratoire de Chimie, Electrochimie Moléculaires et Chimie Analytique, CNRS UMR 6521, Université Européenne de Bretagne à Brest, CS 93837, 6 avenue Le Gorgeu, 29238 Brest Cedex 3, France
| | - Benoît Colasson
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, CNRS UMR 8601, PRES Sorbonne Paris Cité, Université Paris Descartes, 45 rue des Saints Pères, 75006 Paris, France, and Laboratoire de Chimie, Electrochimie Moléculaires et Chimie Analytique, CNRS UMR 6521, Université Européenne de Bretagne à Brest, CS 93837, 6 avenue Le Gorgeu, 29238 Brest Cedex 3, France
| | - Yves Le Mest
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, CNRS UMR 8601, PRES Sorbonne Paris Cité, Université Paris Descartes, 45 rue des Saints Pères, 75006 Paris, France, and Laboratoire de Chimie, Electrochimie Moléculaires et Chimie Analytique, CNRS UMR 6521, Université Européenne de Bretagne à Brest, CS 93837, 6 avenue Le Gorgeu, 29238 Brest Cedex 3, France
| | - Olivia Reinaud
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, CNRS UMR 8601, PRES Sorbonne Paris Cité, Université Paris Descartes, 45 rue des Saints Pères, 75006 Paris, France, and Laboratoire de Chimie, Electrochimie Moléculaires et Chimie Analytique, CNRS UMR 6521, Université Européenne de Bretagne à Brest, CS 93837, 6 avenue Le Gorgeu, 29238 Brest Cedex 3, France
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Rebilly JN, Reinaud O. Supramolecular Bioinorganic Chemistry. Supramol Chem 2012. [DOI: 10.1002/9780470661345.smc174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Zhou YH, Chen J, Shang YJ, Cheng Y. Synthesis, structure and property of three divalent metal complexes of the piperidinoacetyl-containing calix[4]arene. J INCL PHENOM MACRO 2012. [DOI: 10.1007/s10847-012-0121-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Chen J, Song LX, Yang J, Xia J, Shao ZC. Distinctive electronic structure, unusual magnetic properties and large enhancement in SERS of 1D gallium nanoribbons achieved by doping calix[6]arene. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm00082b] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Orain C, Le Poul N, Gomila A, Kerbaol JM, Cosquer N, Reinaud O, Conan F, Le Mest Y. A Generic Platform for the Addressable Functionalisation of Electrode Surfaces through Self-Induced “Electroclick”. Chemistry 2011; 18:594-602. [DOI: 10.1002/chem.201102620] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2011] [Indexed: 11/05/2022]
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Schühle DT, Peters JA, Schatz J. Metal binding calixarenes with potential biomimetic and biomedical applications. Coord Chem Rev 2011. [DOI: 10.1016/j.ccr.2011.04.005] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Pathak RK, Hinge VK, Mondal M, Rao CP. Triazole-Linked-Thiophene Conjugate of Calix[4]arene: Its Selective Recognition of Zn2+ and as Biomimetic Model in Supporting the Events of the Metal Detoxification and Oxidative Stress Involving Metallothionein. J Org Chem 2011; 76:10039-49. [DOI: 10.1021/jo201865x] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Rakesh Kumar Pathak
- Bioinorganic Laboratory & Department of Chemistry and ‡Department of Biosciences & Bioengineering, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India
| | - Vijaya Kumar Hinge
- Bioinorganic Laboratory & Department of Chemistry and ‡Department of Biosciences & Bioengineering, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India
| | - Milon Mondal
- Bioinorganic Laboratory & Department of Chemistry and ‡Department of Biosciences & Bioengineering, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India
| | - Chebrolu Pulla Rao
- Bioinorganic Laboratory & Department of Chemistry and ‡Department of Biosciences & Bioengineering, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India
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Bonniard L, de la Lande A, Ulmer S, Piquemal JP, Parisel O, Gérard H. Competitive ligand/chelate binding in [Cu(TMPA)]+ and [Cu(tren)]+ based complexes. Catal Today 2011. [DOI: 10.1016/j.cattod.2011.07.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Novel redox receptors for ion-pair and α-amino acid: synthesis and complexation properties of calix[4]arene derivatives bearing large conjugated ferrocene groups. J INCL PHENOM MACRO 2011. [DOI: 10.1007/s10847-011-9959-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Gramage-Doria R, Armspach D, Matt D, Toupet L. A Cavity-Shaped Diphosphane Displaying “Oschelating” Behavior. Angew Chem Int Ed Engl 2011; 50:1554-9. [DOI: 10.1002/anie.201005169] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2010] [Revised: 11/12/2010] [Indexed: 11/09/2022]
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Gramage-Doria R, Armspach D, Matt D, Toupet L. A Cavity-Shaped Diphosphane Displaying “Oschelating” Behavior. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201005169] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Colasson B, Poul NL, Mest YL, Reinaud O. Electrochemically Triggered Double Translocation of Two Different Metal Ions with a Ditopic Calix[6]arene Ligand. J Am Chem Soc 2010; 132:4393-8. [DOI: 10.1021/ja910676z] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Benoit Colasson
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, CNRS, UMR 8601, Université Paris Descartes, 45 rue des Saints Pères, 75006 Paris, France and Laboratoire de Chimie, Electrochimie Moléculaires et Chimie Analytique, CNRS, UMR 6521, Université Européenne de Bretagne à Brest, CS 93837, 6 Avenue Le Gorgeu, 29238 Brest Cedex 3, France
| | - Nicolas Le Poul
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, CNRS, UMR 8601, Université Paris Descartes, 45 rue des Saints Pères, 75006 Paris, France and Laboratoire de Chimie, Electrochimie Moléculaires et Chimie Analytique, CNRS, UMR 6521, Université Européenne de Bretagne à Brest, CS 93837, 6 Avenue Le Gorgeu, 29238 Brest Cedex 3, France
| | - Yves Le Mest
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, CNRS, UMR 8601, Université Paris Descartes, 45 rue des Saints Pères, 75006 Paris, France and Laboratoire de Chimie, Electrochimie Moléculaires et Chimie Analytique, CNRS, UMR 6521, Université Européenne de Bretagne à Brest, CS 93837, 6 Avenue Le Gorgeu, 29238 Brest Cedex 3, France
| | - Olivia Reinaud
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, CNRS, UMR 8601, Université Paris Descartes, 45 rue des Saints Pères, 75006 Paris, France and Laboratoire de Chimie, Electrochimie Moléculaires et Chimie Analytique, CNRS, UMR 6521, Université Européenne de Bretagne à Brest, CS 93837, 6 Avenue Le Gorgeu, 29238 Brest Cedex 3, France
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Gomila A, Le Poul N, Cosquer N, Kerbaol JM, Noël JM, Reddy MT, Jabin I, Reinaud O, Conan F, Le Mest Y. Self-induced “electroclick” immobilization of a copper complex onto self-assembled monolayers on a gold electrode. Dalton Trans 2010; 39:11516-8. [DOI: 10.1039/c0dt01093f] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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