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Li X, Markandeya N, Jonusauskas G, McClenaghan ND, Maurizot V, Denisov SA, Huc I. Photoinduced Electron Transfer and Hole Migration in Nanosized Helical Aromatic Oligoamide Foldamers. J Am Chem Soc 2016; 138:13568-13578. [DOI: 10.1021/jacs.6b05668] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Denisov SA, Yu S, Pozzo JL, Jonusauskas G, McClenaghan ND. Harnessing Reversible Electronic Energy Transfer: From Molecular Dyads to Molecular Machines. Chemphyschem 2016; 17:1794-804. [PMID: 26945897 DOI: 10.1002/cphc.201600137] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Indexed: 01/09/2023]
Abstract
Reversible electronic energy transfer (REET) may be instilled in bi-/multichromophoric molecule-based systems, following photoexcitation, upon judicious structural integration of matched chromophores. This leads to a new set of photophysical properties for the ensemble, which can be fully characterized by steady-state and time-resolved spectroscopic methods. Herein, we take a comprehensive look at progress in the development of this type of supermolecule in the last five years, which has seen systems evolve from covalently tethered dyads to synthetic molecular machines, exemplified by two different pseudorotaxanes. Indeed, REET holds promise in the control of movement in molecular machines, their assembly/disassembly, as well as in charge separation.
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Medina-Rodríguez S, Denisov SA, Cudré Y, Male L, Marín-Suárez M, Fernández-Gutiérrez A, Fernández-Sánchez JF, Tron A, Jonusauskas G, McClenaghan ND, Baranoff E. High performance optical oxygen sensors based on iridium complexes exhibiting interchromophore energy shuttling. Analyst 2016; 141:3090-7. [DOI: 10.1039/c6an00497k] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Reversible electronic energy transfer is used for sensing oxygen traces and results in very high sensitivity.
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Johnson AD, Paterson KA, Spiteri JC, Denisov SA, Jonusauskas G, Tron A, McClenaghan ND, Magri DC. Water-soluble naphthalimide-based ‘Pourbaix sensors’: pH and redox-activated fluorescent AND logic gates based on photoinduced electron transfer. NEW J CHEM 2016. [DOI: 10.1039/c6nj02023b] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Naphthalimide-based ‘Pourbaix sensors’ for redox potential and pH fluoresce with a lifetime of 8.5 ns while photoinduced electron transfer occurs on a time scale of 20 ps.
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Denisov SA, Gan Q, Wang X, Scarpantonio L, Ferrand Y, Kauffmann B, Jonusauskas G, Huc I, McClenaghan ND. Electronic Energy Transfer Modulation in a Dynamic Foldaxane: Proof-of-Principle of a Lifetime-Based Conformation Probe. Angew Chem Int Ed Engl 2015; 55:1328-33. [DOI: 10.1002/anie.201508611] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Revised: 11/09/2015] [Indexed: 11/06/2022]
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31
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Denisov SA, Gan Q, Wang X, Scarpantonio L, Ferrand Y, Kauffmann B, Jonusauskas G, Huc I, McClenaghan ND. Electronic Energy Transfer Modulation in a Dynamic Foldaxane: Proof-of-Principle of a Lifetime-Based Conformation Probe. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201508611] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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32
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Isaac M, Denisov SA, Roux A, Imbert D, Jonusauskas G, McClenaghan ND, Sénèque O. Lanthanide Luminescence Modulation by Cation-π Interaction in a Bioinspired Scaffold: Selective Detection of Copper(I). Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201505733] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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33
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Isaac M, Denisov SA, Roux A, Imbert D, Jonusauskas G, McClenaghan ND, Sénèque O. Lanthanide Luminescence Modulation by Cation–π Interaction in a Bioinspired Scaffold: Selective Detection of Copper(I). Angew Chem Int Ed Engl 2015. [DOI: 10.1002/anie.201505733] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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34
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Nicolas Y, Allama F, Lepeltier M, Massin J, Castet F, Ducasse L, Hirsch L, Boubegtiten Z, Jonusauskas G, Olivier C, Toupance T. New synthetic routes towards soluble and dissymmetric triphenodioxazine dyes designed for dye-sensitized solar cells. Chemistry 2015; 20:3678-88. [PMID: 24677330 DOI: 10.1002/chem.201303775] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2013] [Indexed: 11/07/2022]
Abstract
New π-conjugated structures are constantly the subject of research in dyes and pigments industry and electronic organic field. In this context, the triphenodioxazine (TPDO) core has often been used as efficient photostable pigments and once integrated in air stable n-type organic field-effect transistor (OFET). However, little attention has been paid to the TPDO core as soluble materials for optoelectronic devices, possibly due to the harsh synthetic conditions and the insolubility of many compounds. To benefit from the photostability of TPDO in dye-sensitized solar cells (DSCs), an original synthetic pathway has been established to provide soluble and dissymmetric molecules applied to a suitable design for the sensitizers of DSC. The study has been pursued by the theoretical modeling of opto-electronic properties, the optical and electronic characterizations of dyes and elaboration of efficient devices. The discovery of new synthetic pathways opens the way to innovative designs of TPDO for materials used in organic electronics.
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Panchenko PA, Fedorov YV, Fedorova OA, Jonusauskas G. FRET versus PET: ratiometric chemosensors assembled from naphthalimide dyes and crown ethers. Phys Chem Chem Phys 2015; 17:22749-57. [DOI: 10.1039/c5cp03510d] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Crown-containing naphthalimide dyads exhibited a ratiometric fluorescence response in the presence of metal cations and protons resulting from the competition between PET and FRET processes.
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Mongin C, Pianet I, Jonusauskas G, Bassani DM, Bibal B. Supramolecular Photocatalyst for the Reduction of Au(III) to Au(I) and High-Turnover Generation of Gold Nanocrystals. ACS Catal 2014. [DOI: 10.1021/cs5016063] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Doistau B, Tron A, Denisov SA, Jonusauskas G, McClenaghan ND, Gontard G, Marvaud V, Hasenknopf B, Vives G. Terpy(Pt-salphen)2 switchable luminescent molecular tweezers. Chemistry 2014; 20:15799-807. [PMID: 25286882 DOI: 10.1002/chem.201404064] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2014] [Indexed: 11/10/2022]
Abstract
The design and synthesis of switchable molecular tweezers based on a luminescent terpy(Pt-salphen)2 (1; terpy=terpyridine) complex is reported. Upon metal coordination, the tweezers can switch from an open "W"-shaped conformation to a closed "U"-shaped form that is adapted for selective recognition of cations. Closing of the tweezers by metal coordination (M=Zn(2+), Cu(2+), Pb(2+), Fe(2+), Hg(2+)) was monitored by (1)H NMR and/or UV/Vis titrations. During the titration, exclusive formation of the 1:1 complex [M(1)] was observed, without appearance of an intermediate 1:2 complex [M(1)2]. The crystallographic structure of the 1:1 complex was obtained with Pb(2+) and showed a distorted helical structure. Selective intercalation of Hg(2+) cations by the closed "U" form was observed. The tweezers were reopened by selective metal decoordination of the terpyridine ligand by using tris(2-aminoethyl)amine (tren) as a competitive ligand without modification of the Pt-salphen complex. Detailed photophysical studies were performed on the open and closed tweezers. Structured emission was observed in the open form from the Pt-salphen moieties, with a high quantum yield and a long lifetime. The emission is slightly modified upon closing with 1 equivalent of Zn(2+) or Hg(2+), whereas a dramatic quenching was obtained upon intercalation of additional Hg(2+).
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Batat P, Grauby-Heywang C, Selektor S, Silantyeva D, Arslanov V, McClenaghan N, Jonusauskas G. Artificial Iono- and Photosensitive Membranes Based on an Amphiphilic Aza-Crown-Substituted Hemicyanine. Chemphyschem 2014; 15:2823-33. [DOI: 10.1002/cphc.201402112] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2014] [Revised: 04/13/2014] [Indexed: 11/10/2022]
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39
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Panchenko PA, Sergeeva AN, Fedorova OA, Fedorov YV, Reshetnikov RI, Schelkunova AE, Grin MA, Mironov AF, Jonusauskas G. Spectroscopical study of bacteriopurpurinimide–naphthalimide conjugates for fluorescent diagnostics and photodynamic therapy. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2014; 133:140-4. [DOI: 10.1016/j.jphotobiol.2014.03.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2013] [Revised: 03/13/2014] [Accepted: 03/15/2014] [Indexed: 10/25/2022]
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Denisov S, Cudré Y, Verwilst P, Jonusauskas G, Marín-Suárez M, Fernández-Sánchez JF, Baranoff E, McClenaghan ND. Direct observation of reversible electronic energy transfer involving an iridium center. Inorg Chem 2014; 53:2677-82. [PMID: 24555716 PMCID: PMC3950932 DOI: 10.1021/ic4030712] [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] [Received: 12/14/2013] [Indexed: 01/06/2023]
Abstract
A cyclometalated iridium complex is reported where the core complex comprises naphthylpyridine as the main ligand and the ancillary 2,2'-bipyridine ligand is attached to a pyrene unit by a short alkyl bridge. To obtain the complex with satisfactory purity, it was necessary to modify the standard synthesis (direct reaction of the ancillary ligand with the chloro-bridged iridium dimer) to a method harnessing an intermediate tetramethylheptanolate-based complex, which was subjected to acid-promoted removal of the ancillary ligand and subsequent complexation. The photophysical behavior of the bichromophoric complex and a model complex without the pendant pyrene were studied using steady-state and time-resolved spectroscopies. Reversible electronic energy transfer (REET) is demonstrated, uniquely with an emissive cyclometalated iridium center and an adjacent organic chromophore. After excited-state equilibration is established (5 ns) as a result of REET, extremely long luminescence lifetimes of up to 225 μs result, compared to 8.3 μs for the model complex, without diminishing the emission quantum yield. As a result, remarkably high oxygen sensitivity is observed in both solution and polymeric matrices.
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Leydet Y, Batat P, Jonusauskas G, Denisov S, Lima JC, Parola AJ, McClenaghan ND, Pina F. Impact of water on the cis-trans photoisomerization of hydroxychalcones. J Phys Chem A 2013; 117:4167-73. [PMID: 23611019 DOI: 10.1021/jp402761j] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The photochromism of a 2-hydroxychalcone has been studied in CH3CN and H2O/CH3OH (1/1, v/v), as well as in analogous deuterated solvents using steady-state (UV-vis absorption, (1)H and (13)C NMR) and time-resolved (ultrafast transient absorption and nanosecond flow flash photolysis) spectroscopies. Whereas the irradiation of trans-chalcone (Ct) under neutral pH conditions leads to the formation of the same final chromene derivative (B) in both media, two distinct photochemical mechanisms are proposed in agreement with thermodynamic and kinetic properties of the chemical reaction network at the ground state. Following light excitation, the first steps are identical in acetonitrile and aqueous solution: the Franck-Condon excited state rapidly populates the trans-chalcone singlet excited state (1)Ct* (LE), which evolves into a twisted state (1)P*. This excited state is directly responsible for the photochemistry in acetonitrile in the nanosecond time scale (16 ns) leading to the formation of cis-chalcone (Cc) through a simple isomerization process. The resulting cis-chalcone evolves into the chromene B through a tautomerization process in the ground state (τ = 10 ms). Unlike in acetonitrile, in H2O/CH3OH (1/1, v/v), the P* state becomes unstable and evolves into a new state attributed to the tautomer (1)Q*. This state directly evolves into B in one photochemical step through a consecutive ultrafast tautomerization process followed by electrocyclization. This last case represents a new hypothesis in the photochromism of 2-hydroxychalcone derivatives.
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Ragazzon G, Verwilst P, Denisov SA, Credi A, Jonusauskas G, McClenaghan ND. Ruthenium(ii) complexes based on tridentate polypyridine ligands that feature long-lived room-temperature luminescence. Chem Commun (Camb) 2013; 49:9110-2. [DOI: 10.1039/c3cc45387a] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Galle G, Tribollet J, Jonusauskas G, Tondusson M, Mauriac C, Létard J, Freysz E. High spin ↔ low spin ultrafast excitation and relaxation of an isolated iron(II) complex. EPJ WEB OF CONFERENCES 2013. [DOI: 10.1051/epjconf/20134105010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Peyrard L, Dumartin ML, Chierici S, Pinet S, Jonusauskas G, Meyrand P, Gosse I. Development of Functionalized Cyclotriveratrylene Analogues: Introduction of Withdrawing and π-Conjugated Groups. J Org Chem 2012; 77:7023-7. [DOI: 10.1021/jo301183b] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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45
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Harmand L, Cadet S, Kauffmann B, Scarpantonio L, Batat P, Jonusauskas G, McClenaghan ND, Lastécouères D, Vincent JM. Inside Back Cover: Copper Catalyst Activation Driven by Photoinduced Electron Transfer: A Prototype Photolatent Click Catalyst (Angew. Chem. Int. Ed. 29/2012). Angew Chem Int Ed Engl 2012. [DOI: 10.1002/anie.201204564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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46
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Harmand L, Cadet S, Kauffmann B, Scarpantonio L, Batat P, Jonusauskas G, McClenaghan ND, Lastécouères D, Vincent JM. Innenrücktitelbild: Copper Catalyst Activation Driven by Photoinduced Electron Transfer: A Prototype Photolatent Click Catalyst (Angew. Chem. 29/2012). Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201204564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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47
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Harmand L, Cadet S, Kauffmann B, Scarpantonio L, Batat P, Jonusauskas G, McClenaghan ND, Lastécouères D, Vincent JM. Copper Catalyst Activation Driven by Photoinduced Electron Transfer: A Prototype Photolatent Click Catalyst. Angew Chem Int Ed Engl 2012; 51:7137-41. [DOI: 10.1002/anie.201203014] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2012] [Indexed: 11/06/2022]
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48
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Harmand L, Cadet S, Kauffmann B, Scarpantonio L, Batat P, Jonusauskas G, McClenaghan ND, Lastécouères D, Vincent JM. Copper Catalyst Activation Driven by Photoinduced Electron Transfer: A Prototype Photolatent Click Catalyst. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201203014] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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49
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Ducrot A, Verwilst P, Scarpantonio L, Goudet S, Kauffmann B, Denisov S, Jonusauskas G, McClenaghan ND. Photolariats: synthesis, metal ion complexation and photochromism. Supramol Chem 2012. [DOI: 10.1080/10610278.2012.678851] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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50
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Guillo P, Hamelin O, Batat P, Jonusauskas G, McClenaghan ND, Ménage S. Photocatalyzed sulfide oxygenation with water as the unique oxygen atom source. Inorg Chem 2012; 51:2222-30. [PMID: 22296643 DOI: 10.1021/ic2022159] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
In our research program aiming to develop new ruthenium-based polypyridine catalysts for oxidation we were interested in combining a photosensitizer and a catalytic fragment within the same complex to achieve catalytic light-driven oxidation. To respond to the lack of such conjugates, we report here a new catalytic system capable of using light to activate water molecules in order to perform selective sulfide oxygenation into sulfoxide via an oxygen atom transfer from H(2)O to the substrate with a TON of up to 197 ± 6. On the basis of electrochemical and photophysical studies, a proton-coupled electron-transfer process yielding to an oxidant Ru(IV)-oxo species was proposed. In particular, the synergistic effect between both partners in the dyad yielding a more efficient catalyst compared to the bimolecular system is highlighted.
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