1
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Lin N, Mani T. Anti-Arrhenius behavior of electron transfer reactions in molecular dimers. Chem Sci 2023; 14:13095-13107. [PMID: 38023507 PMCID: PMC10664467 DOI: 10.1039/d3sc03609j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 10/29/2023] [Indexed: 12/01/2023] Open
Abstract
Rates of chemical reactions typically accelerate as the temperature rises, following the Arrhenius law. However, electron transfer reactions may exhibit weak temperature dependence or counterintuitive behavior, known as anti-Arrhenius behavior, wherein reaction rates decrease as temperature increases. Solvent reorganization energy and torsion-induced changes in electronic couplings could contribute to this unusual behavior, but how each contributes to the overall temperature dependence is unclear. One can decelerate the charge recombination process in photogenerated radical pairs or charge-separated states by harnessing this often-overlooked phenomenon. This means that we could achieve long-lived radical pairs without relying on conventional cooling. Using a series of homo molecular dimers, we showed that the degree of torsional hindrance dictates temperature-dependent torsion-induced changes in electronic coupling and, therefore, charge recombination rates. The overall temperature dependence is controlled by how changes in electronic coupling and the temperature-dependent solvent reorganization energy contribute to the rates of charge recombination. Our findings pave the way for rationally designing molecules that exhibit anti-Arrhenius behavior to slow down charge recombination, opening possibilities for applications in energy-related and quantum information technologies.
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Affiliation(s)
- Neo Lin
- Department of Chemistry, University of Connecticut Storrs CT 06269 USA
| | - Tomoyasu Mani
- Department of Chemistry, University of Connecticut Storrs CT 06269 USA
- Chemistry Division, Brookhaven National Laboratory Upton NY 11973 USA
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2
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Sandoval JS, Gong Q, Jiao L, McCamant DW. Stimulated Resonance Raman and Excited-State Dynamics in an Excitonically Coupled Bodipy Dimer: A Test for TD-DFT and the Polarizable Continuum Model. J Phys Chem A 2023; 127:7156-7167. [PMID: 37594191 PMCID: PMC10476205 DOI: 10.1021/acs.jpca.3c02978] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 07/27/2023] [Indexed: 08/19/2023]
Abstract
Bodipy is one of the most versatile and studied functional dyes due to its myriad applications and tunable spectral properties. One of the strategies to adjust their properties is the formation of Bodipy dimers and oligomers whose properties differ significantly from the corresponding monomer. Recently, we have developed a novel strategy for synthesizing α,α-ethylene-bridged Bodipy dimers; however, their excited-state dynamics was heretofore unknown. This work presents the ultrafast excited-state dynamics of a novel α,α-ethylene-bridge Bodipy dimer and its monomeric parent. The dimer's steady-state absorption and fluorescence suggest a Coulombic interaction between the monomeric units' transition dipole moments (TDMs), forming what is often termed a "J-dimer". The excited-state properties of the dimer were studied using molecular excitonic theory and time-dependent density functional theory (TD-DFT). We chose the M06 exchange-correlation functional (XCF) based on its ability to reproduce the experimental oscillator strength and resonance Raman spectra. Ultrafast laser spectroscopy reveals symmetry-breaking charge separation (SB-CS) in the dimer in polar solvents and the subsequent population of the charge-separated ion-pair state. The charge separation rate falls into the normal regime, while the charge recombination is in the inverted regime. Conversely, in nonpolar solvents, the charge separation is thermodynamically not feasible. In contrast, the monomer's excited-state dynamics shows no dependence on the solvent polarity. Furthermore, we found no evidence of significant structural rearrangement upon photoexcitation, regardless of the deactivation pathway. After an extensive analysis of the electronic transitions, we concluded that the solvent fluctuations in the local environment around the dimer create an asymmetry that drives and stabilizes the charge separation. This work sheds light on the charge-transfer process in this new set of molecular systems and how excited-state dynamics can be modeled by combining the experiment and theory.
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Affiliation(s)
- Juan S. Sandoval
- Department
of Chemistry, University of Rochester, 120 Trustee Road, Rochester, New York 14627, United States
| | - Qingbao Gong
- School
of Chemistry and Materials Science, Anhui
Normal University, Wuhu 241002, China
| | - Lijuan Jiao
- School
of Chemistry and Materials Science, Anhui
Normal University, Wuhu 241002, China
| | - David W. McCamant
- Department
of Chemistry, University of Rochester, 120 Trustee Road, Rochester, New York 14627, United States
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3
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Ansteatt S, Uthe B, Mandal B, Gelfand RS, Dunietz BD, Pelton M, Ptaszek M. Engineering giant excitonic coupling in bioinspired, covalently bridged BODIPY dyads. Phys Chem Chem Phys 2023; 25:8013-8027. [PMID: 36876508 DOI: 10.1039/d2cp05621f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
Strong excitonic coupling in photosynthetic systems is believed to enable efficient light absorption and quantitative charge separation, motivating the development of artificial multi-chromophore arrays with equally strong or even stronger excitonic coupling. However, large excitonic coupling strengths have typically been accompanied by fast non-radiative recombination, limiting the potential of the arrays for solar energy conversion as well as other applications such as fluorescent labeling. Here, we report giant excitonic coupling leading to broad optical absorption in bioinspired BODIPY dyads that have high photostability, excited-state lifetimes at the nanosecond scale, and fluorescence quantum yields of nearly 50%. Through the synthesis, spectroscopic characterization, and computational modeling of a series of dyads with different linking moieties, we show that the strongest coupling is obtained with diethynylmaleimide linkers, for which the coupling occurs through space between BODIPY units with small separations and slipped co-facial orientations. Other linkers allow for broad tuning of both the relative through-bond and through-space coupling contributions and the overall strength of interpigment coupling, with a tradeoff observed in general between the strength of the two coupling mechanisms. These findings open the door to the synthesis of molecular systems that function effectively as light-harvesting antennas and as electron donors or acceptors for solar energy conversion.
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Affiliation(s)
- Sara Ansteatt
- Department of Chemistry and Biochemistry, University of Maryland, Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250, USA.
| | - Brian Uthe
- Department of Physics, University of Maryland, Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250, USA.
| | - Bikash Mandal
- Department of Chemistry and Biochemistry, Kent State University, Kent, OH 44242, USA.
| | - Rachel S Gelfand
- Department of Physics, University of Maryland, Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250, USA.
| | - Barry D Dunietz
- Department of Chemistry and Biochemistry, Kent State University, Kent, OH 44242, USA.
| | - Matthew Pelton
- Department of Chemistry and Biochemistry, University of Maryland, Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250, USA. .,Department of Physics, University of Maryland, Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250, USA.
| | - Marcin Ptaszek
- Department of Chemistry and Biochemistry, University of Maryland, Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250, USA.
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4
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Juneja S, Himanshu, Pandey S. Contrasting ground- and excited-state intramolecular aggregation in choline chloride-based deep eutectic solvents versus a liquid polymer. Phys Chem Chem Phys 2022; 24:8361-8370. [PMID: 35332356 DOI: 10.1039/d1cp05849e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Although the pyrenyl (Py) groups in several dipyrenyl (or bispyrenyl) compounds do not dimerize in the ground-state, they are known to intramolecularly aggregate exclusively in the excited-state to form excimers in common organic solvents. We present contrasting intramolecular aggregation behaviour of such a prototypical compound, 1,3-bis(1-pyrenyl)propane [1Py(3)1Py], dissolved in judiciously selected liquids having relatively high dynamic viscosities (η). Specifically, the intramolecular aggregation of 1Py(3)1Py is investigated in a liquid polymer polydimethylsiloxane with number average MW 2000, PDMS2000 (η293.15K = 21.4 mPa s), and is compared with aggregation of 1Py(3)1Py in deep eutectic solvents (DESs) constituted of the H-bond acceptor (HBA) choline chloride (ChCl) and H-bond donors (HBDs) urea and glycerol in a 1 : 2 mole ratio of ChCl : urea (η293.15K = 1372.0 mPa s) and ChCl : Gly (η293.15K = 473.0 mPa s), respectively, in 293.15 to 363.15 K temperature range. The HBD constituent of ChCl : Gly, glycerol (Gly) (η293.15K = 1412.0 mPa s) is also investigated for comparison purposes. It is found that while in PDMS2000, 1Py(3)1Py intramolecularly aggregates exclusively in the excited-state, thus forming a classical excimer, ground-state heterogeneity is clearly evident in both the DESs and Gly. High viscosity, a consequence of the extensive H-bonding in DESs/Gly, appears to induce the two Py units, both in the ground-state, to exist partly in a configuration where the interaction, albeit a weak one, takes place between the two. This ground-state interaction is not present in relatively low viscosity media PDMS2000 as observed in the common organic solvents. The role of viscosity/H-bonding of the solubilizing milieu on differential intramolecular aggregation in ground- and excited-states is highlighted.
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Affiliation(s)
- Shreya Juneja
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi - 110016, India.
| | - Himanshu
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi - 110016, India.
| | - Siddharth Pandey
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi - 110016, India.
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5
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Gemen J, Ahrens J, Shimon LJW, Klajn R. Modulating the Optical Properties of BODIPY Dyes by Noncovalent Dimerization within a Flexible Coordination Cage. J Am Chem Soc 2020; 142:17721-17729. [PMID: 33006898 PMCID: PMC7564082 DOI: 10.1021/jacs.0c08589] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Indexed: 12/25/2022]
Abstract
Aggregation of organic molecules can drastically affect their physicochemical properties. For instance, the optical properties of BODIPY dyes are inherently related to the degree of aggregation and the mutual orientation of BODIPY units within these aggregates. Whereas the noncovalent aggregation of various BODIPY dyes has been studied in diverse media, the ill-defined nature of these aggregates has made it difficult to elucidate the structure-property relationships. Here, we studied the encapsulation of three structurally simple BODIPY derivatives within the hydrophobic cavity of a water-soluble, flexible PdII6L4 coordination cage. The cavity size allowed for the selective encapsulation of two dye molecules, irrespective of the substitution pattern on the BODIPY core. Working with a model, a pentamethyl-substituted derivative, we found that the mutual orientation of two BODIPY units in the cage's cavity was remarkably similar to that in the crystalline state of the free dye, allowing us to isolate and characterize the smallest possible noncovalent H-type BODIPY aggregate, namely, an H-dimer. Interestingly, a CF3-substituted BODIPY, known for forming J-type aggregates, was also encapsulated as an H-dimer. Taking advantage of the dynamic nature of encapsulation, we developed a system in which reversible switching between H- and J-aggregates can be induced for multiple cycles simply by addition and subsequent destruction of the cage. We expect that the ability to rapidly and reversibly manipulate the optical properties of supramolecular inclusion complexes in aqueous media will open up avenues for developing detection systems that operate within biological environments.
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Affiliation(s)
- Julius Gemen
- Department
of Organic Chemistry, Weizmann Institute
of Science, Rehovot 76100, Israel
| | - Johannes Ahrens
- Department
of Organic Chemistry, Weizmann Institute
of Science, Rehovot 76100, Israel
- BASF
SE, Carl-Bosch-Straße
38, 67056 Ludwigshafen
am Rhein, Germany
| | - Linda J. W. Shimon
- Chemical
Research Support, Weizmann Institute of
Science, Rehovot 76100, Israel
| | - Rafal Klajn
- Department
of Organic Chemistry, Weizmann Institute
of Science, Rehovot 76100, Israel
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6
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Sittig M, Schmidt B, Görls H, Bocklitz T, Wächtler M, Zechel S, Hager MD, Dietzek B. Fluorescence upconversion by triplet-triplet annihilation in all-organic poly(methacrylate)-terpolymers. Phys Chem Chem Phys 2020; 22:4072-4079. [PMID: 32031195 DOI: 10.1039/d0cp00232a] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Fluorescence upconversion by triplet-triplet annihilation is demonstrated for a fully polymer-integrated material, i.e. in the limit of restricted diffusion. Organic sensitizer and acceptor are covalently attached to a poly(methacrylate) backbone, yielding a metal-free macromolecular all-in-one system for fluorescence upconversion. Due to the spatial confinement of the optically active molecular components, i.e. annihilator and sensitizer, UC by TTA in the constrained polymer system in solution is achieved at exceptionally low averaged annihilator concentrations. However, the UC quantum yield in the investigated systems is found to be low, highlighting that only chromophores in specific local surroundings yield upconversion in the limit of restricted diffusion. A photophysical model is proposed taking the heterogeneous local environment within the polymers into account.
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Affiliation(s)
- Maria Sittig
- Leibniz Institute of Photonic Technology Jena, Albert-Einstein-Straße 9, D-07745 Jena, Germany and Institute of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, D-07743 Jena, Germany.
| | - Benny Schmidt
- Institute for Organic Chemistry and Macromolecular Chemistry (IOMC), Laboratory for Organic and Macromolecular Chemistry, Humboldtstraße 10, D-07743 Jena, Germany and Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, D-07743 Jena, Germany.
| | - Helmar Görls
- Institute for Inorganic and Analytical Chemistry (IAAC), Friedrich Schiller University Jena, Humboldtstraße 8, D-07743 Jena, Germany
| | - Thomas Bocklitz
- Leibniz Institute of Photonic Technology Jena, Albert-Einstein-Straße 9, D-07745 Jena, Germany and Institute of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, D-07743 Jena, Germany.
| | - Maria Wächtler
- Leibniz Institute of Photonic Technology Jena, Albert-Einstein-Straße 9, D-07745 Jena, Germany and Institute of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, D-07743 Jena, Germany.
| | - Stefan Zechel
- Institute for Organic Chemistry and Macromolecular Chemistry (IOMC), Laboratory for Organic and Macromolecular Chemistry, Humboldtstraße 10, D-07743 Jena, Germany and Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, D-07743 Jena, Germany.
| | - Martin D Hager
- Institute for Organic Chemistry and Macromolecular Chemistry (IOMC), Laboratory for Organic and Macromolecular Chemistry, Humboldtstraße 10, D-07743 Jena, Germany and Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, D-07743 Jena, Germany.
| | - Benjamin Dietzek
- Leibniz Institute of Photonic Technology Jena, Albert-Einstein-Straße 9, D-07745 Jena, Germany and Institute of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, D-07743 Jena, Germany.
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7
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Oliden-Sánchez A, Sola-Llano R, Bañuelos J, García-Moreno I, Uriel C, López JC, Gómez AM. Tuning the Photonic Behavior of Symmetrical bis-BODIPY Architectures: The Key Role of the Spacer Moiety. Front Chem 2019; 7:801. [PMID: 31850302 PMCID: PMC6902057 DOI: 10.3389/fchem.2019.00801] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 11/06/2019] [Indexed: 01/16/2023] Open
Abstract
Herein we describe the synthesis, computationally assisted spectroscopy, and lasing properties of a new library of symmetric bridged bis-BODIPYs that differ in the nature of the spacer. Access to a series of BODIPY dimers is straightforward through synthetic modifications of the pending ortho-hydroxymethyl group of readily available C-8 (meso) ortho-hydroxymethyl phenyl BODIPYs. In this way, we have carried out the first systematic study of the photonic behavior of symmetric bridged bis-BODIPYs, which is effectively modulated by the length and/or stereoelectronic properties of the spacer unit. The designed bis-BODIPYs display bright fluorescence and laser emission in non-polar media. The fluorescence response is governed by the induction of a non-emissive intramolecular charge transfer (ICT) process, which is significantly enhanced in polar media. The effectiveness of the fluorescence quenching and also the prevailing charge transfer mechanism (from the spacer itself or between the BODIPY units) rely directly on the electron-releasing ability of the spacer. Moreover, the linker moiety can also promote intramolecular excitonic interactions, leading to excimer-like emission characterized by new spectral bands and the lengthening of lifetimes. The substantial influence of the bridging moiety on the emission behavior of these BODIPY dyads and their solvent-sensitivity highlight the intricate molecular dynamics upon excitation in multichromophoric systems. In this regard, the present work represents a breakthrough in the complex relationship between the molecular structure of the chromophores and their photophysical signatures, thus providing key guidelines for rationalizing the design of tailored bis-BODIPYs with potential advanced applications.
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Affiliation(s)
- Ainhoa Oliden-Sánchez
- Molecular Spectroscopy Laboratory, Science and Technology Faculty, Physical Chemistry Department, Basque Country University (UPV/EHU), Bilbao, Spain
| | - Rebeca Sola-Llano
- Molecular Spectroscopy Laboratory, Science and Technology Faculty, Physical Chemistry Department, Basque Country University (UPV/EHU), Bilbao, Spain
| | - Jorge Bañuelos
- Molecular Spectroscopy Laboratory, Science and Technology Faculty, Physical Chemistry Department, Basque Country University (UPV/EHU), Bilbao, Spain
| | - Inmaculada García-Moreno
- Laser Materials Laboratory, "Rocasolano" Physical Chemistry Institute, Department of Low-Dimension Systems, Surfaces and Condensed Matter, CSIC, Madrid, Spain
| | - Clara Uriel
- Bioorganic Chemistry Department, Instituto de Química Orgánica General (IQOG-CSIC), Madrid, Spain
| | - J Cristobal López
- Bioorganic Chemistry Department, Instituto de Química Orgánica General (IQOG-CSIC), Madrid, Spain
| | - Ana M Gómez
- Bioorganic Chemistry Department, Instituto de Química Orgánica General (IQOG-CSIC), Madrid, Spain
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8
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Descalzo AB, Ashokkumar P, Shen Z, Rurack K. On the Aggregation Behaviour and Spectroscopic Properties of Alkylated and Annelated Boron‐Dipyrromethene (BODIPY) Dyes in Aqueous Solution. CHEMPHOTOCHEM 2019. [DOI: 10.1002/cptc.201900235] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ana B. Descalzo
- Chemical and Optical Sensing DivisionBundesanstalt für Materialforschung und -prüfung (BAM) Richard-Willstätter-Straße 11 12489 Berlin Germany
- Present address: Dpmt. Organic Chemistry, Faculty of ChemistryComplutense University of Madrid (UCM) Av. Complutense, s/n 28040 Madrid Spain
| | - Pichandi Ashokkumar
- Chemical and Optical Sensing DivisionBundesanstalt für Materialforschung und -prüfung (BAM) Richard-Willstätter-Straße 11 12489 Berlin Germany
- Present address: Laboratoire de Bioimagerie et Pathologies, UMR 7021 CNRS Faculté de PharmacieUniversité de Strasbourg Strasbourg CS 60024 France
| | - Zhen Shen
- State Key Laboratory of Coordination Chemistry Nanjing National Laboratory of Microstructures and School of Chemistry and Chemical EngineeringNanjing University Nanjing 210046 China
| | - Knut Rurack
- Chemical and Optical Sensing DivisionBundesanstalt für Materialforschung und -prüfung (BAM) Richard-Willstätter-Straße 11 12489 Berlin Germany
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9
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Sirbu D, Karlsson JKG, Harriman A. Nonradiative Decay Channels for a Structurally-Distorted, Monostrapped BODIPY Derivative. J Phys Chem A 2018; 122:9160-9170. [DOI: 10.1021/acs.jpca.8b07840] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Dumitru Sirbu
- Molecular Photonics Laboratory, School of Natural and Environmental Sciences, Bedson Building, Newcastle University, Newcastle upon Tyne NE1 7RU, United Kingdom
| | - Joshua K. G. Karlsson
- Molecular Photonics Laboratory, School of Natural and Environmental Sciences, Bedson Building, Newcastle University, Newcastle upon Tyne NE1 7RU, United Kingdom
| | - Anthony Harriman
- Molecular Photonics Laboratory, School of Natural and Environmental Sciences, Bedson Building, Newcastle University, Newcastle upon Tyne NE1 7RU, United Kingdom
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10
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Yang J, Rousselin Y, Bucher L, Desbois N, Bolze F, Xu HJ, Gros CP. Two-Photon Absorption Properties and Structures of BODIPY and Its Dyad, Triad and Tetrad. Chempluschem 2018; 83:838-844. [DOI: 10.1002/cplu.201800361] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Indexed: 11/07/2022]
Affiliation(s)
- Jian Yang
- College of Chemical Engineering; Nanjing Forestry University; Nanjing 210037 China
- Université de Bourgogne Franche-Comté; ICMUB (UMR CNRS 6302); 9, Avenue A. Savary, BP 47870 21078 Dijon Cedex France
| | - Yoann Rousselin
- Université de Bourgogne Franche-Comté; ICMUB (UMR CNRS 6302); 9, Avenue A. Savary, BP 47870 21078 Dijon Cedex France
| | - Léo Bucher
- Université de Bourgogne Franche-Comté; ICMUB (UMR CNRS 6302); 9, Avenue A. Savary, BP 47870 21078 Dijon Cedex France
| | - Nicolas Desbois
- Université de Bourgogne Franche-Comté; ICMUB (UMR CNRS 6302); 9, Avenue A. Savary, BP 47870 21078 Dijon Cedex France
| | - Frédéric Bolze
- Faculté de Pharmacie; Université de Strasbourg; UMR 7199, Conception et Applications des Molécules Bioactives; 74 route du Rhin 67401 Illkirch France
| | - Hai-Jun Xu
- College of Chemical Engineering; Nanjing Forestry University; Nanjing 210037 China
| | - Claude P. Gros
- Université de Bourgogne Franche-Comté; ICMUB (UMR CNRS 6302); 9, Avenue A. Savary, BP 47870 21078 Dijon Cedex France
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11
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Xu K, Sukhanov AA, Zhao Y, Zhao J, Ji W, Peng X, Escudero D, Jacquemin D, Voronkova VK. Unexpected Nucleophilic Substitution Reaction of BODIPY: Preparation of the BODIPY-TEMPO Triad Showing Radical-Enhanced Intersystem Crossing. European J Org Chem 2018. [DOI: 10.1002/ejoc.201701724] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Kejing Xu
- State Key Laboratory of Fine Chemicals; School of Chemical Engineering; Dalian University of Technology; E-208 West Campus, 2 Ling Gong Rd. 116024 Dalian China
| | - Andrey A. Sukhanov
- Zavoisky Physical-Technical Institute; FIC KazanSC; Russian Academy of Sciences; Sibirsky trakt 10/7 420029 Kazan Russia
| | - Yingjie Zhao
- State Key Laboratory of Fine Chemicals; School of Chemical Engineering; Dalian University of Technology; E-208 West Campus, 2 Ling Gong Rd. 116024 Dalian China
| | - Jianzhang Zhao
- State Key Laboratory of Fine Chemicals; School of Chemical Engineering; Dalian University of Technology; E-208 West Campus, 2 Ling Gong Rd. 116024 Dalian China
| | - Wei Ji
- State Key Laboratory of Fine Chemicals; School of Chemical Engineering; Dalian University of Technology; E-208 West Campus, 2 Ling Gong Rd. 116024 Dalian China
| | - Xiaojun Peng
- State Key Laboratory of Fine Chemicals; School of Chemical Engineering; Dalian University of Technology; E-208 West Campus, 2 Ling Gong Rd. 116024 Dalian China
| | - Daniel Escudero
- CEISAM UMR CNRS 6230; Université de Nantes; 2 rue de la Houssinière, BP 92208 44322 Nantes Cedex 3 France
| | - Denis Jacquemin
- CEISAM UMR CNRS 6230; Université de Nantes; 2 rue de la Houssinière, BP 92208 44322 Nantes Cedex 3 France
- Institut Universitaire de France; 1, rue Descartes 75005 Paris Cedex 5 France
| | - Violeta K. Voronkova
- Zavoisky Physical-Technical Institute; FIC KazanSC; Russian Academy of Sciences; Sibirsky trakt 10/7 420029 Kazan Russia
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12
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Blázquez-Moraleja A, Cerdán L, García-Moreno I, Avellanal-Zaballa E, Bañuelos J, Jimeno ML, López-Arbeloa I, Chiara JL. Stereochemical and Steric Control of Photophysical and Chiroptical Properties in Bichromophoric Systems. Chemistry 2018; 24:3802-3815. [DOI: 10.1002/chem.201705698] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Indexed: 11/07/2022]
Affiliation(s)
| | - Luis Cerdán
- Instituto Química-Física “Rocasolano”; IQFR-CSIC; Serrano 119 28006 Madrid Spain
| | | | - Edurne Avellanal-Zaballa
- Departamento de Química Física; Universidad del País Vasco-EHU, Facultad de Ciencias y Tecnología; Apartado 644 48080 Bilbao Spain
| | - Jorge Bañuelos
- Departamento de Química Física; Universidad del País Vasco-EHU, Facultad de Ciencias y Tecnología; Apartado 644 48080 Bilbao Spain
| | - M. Luisa Jimeno
- Centro Nacional de Química Orgánica “Manuel Lora Tamayo”; CENQUIOR-CSIC; Juan de la Cierva 3 28006 Madrid Spain
| | - Iñigo López-Arbeloa
- Departamento de Química Física; Universidad del País Vasco-EHU, Facultad de Ciencias y Tecnología; Apartado 644 48080 Bilbao Spain
| | - Jose Luis Chiara
- Instituto de Química Orgánica General; IQOG-CSIC; Juan de la Cierva 3 28006 Madrid Spain
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13
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Sengupta S, Pandey UK. Dual emissive bodipy–benzodithiophene–bodipy TICT triad with a remarkable Stokes shift of 194 nm. Org Biomol Chem 2018; 16:2033-2038. [DOI: 10.1039/c8ob00272j] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
An acceptor–donor–acceptor (A–D–A) triad based on BODIPY and benzodithiophene exhibited a high Stokes shift of ∼194 nm, TICT and high mobility of 4.46 × 10−4 cm2 V−1 s−1.
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Affiliation(s)
- Sanchita Sengupta
- Interdisciplinary Centre for Energy Research (ICER)
- Indian Institute of Science (IISc) Bangalore
- Bangalore 560012
- India
| | - Upendra K. Pandey
- Interdisciplinary Centre for Energy Research (ICER)
- Indian Institute of Science (IISc) Bangalore
- Bangalore 560012
- India
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14
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Cristóbal López J, Del Rio M, Oliden A, Bañuelos J, López-Arbeloa I, García-Moreno I, Gómez AM. Solvent-Sensitive Emitting Urea-Bridged bis-BODIPYs: Ready Access by a One-Pot Tandem Staudinger/Aza-Wittig Ureation. Chemistry 2017; 23:17511-17520. [PMID: 28853181 DOI: 10.1002/chem.201703383] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Indexed: 11/08/2022]
Abstract
Herein we describe the synthesis, and computationally aided photophysical characterization of a new set of urea-bridged bis-BODIPY derivatives. These new dyads are efficiently obtained by a one-pot tandem Staudinger/aza-Wittig ureation protocol, from easily accessible meso-phenyl ortho-azidomethyl BODIPYs. These symmetric bis-BODIPYs outstand by a high absorption probability and excellent fluorescence and laser emission in less polar media. Nevertheless, this emission ability decreases in more polar media, which is ascribed to a light-induced charge-transfer from the urea spacer to the dipyrrin core, a process that can be modulated by appropriate changes in the substitution pattern of the BODIPY core. Furthermore, this ureation protocol can also be employed for the direct conjugation of our BODIPY-azides to amine-containing compounds, thus providing access to fluorescent non-symmetric ureas.
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Affiliation(s)
- J Cristóbal López
- Bio-organic Chemistry Department, Instituto de Química Orgánica General (IQOG-CSIC), Juan de la Cierva 3, 28006, Madrid, Spain
| | - Mayca Del Rio
- Bio-organic Chemistry Department, Instituto de Química Orgánica General (IQOG-CSIC), Juan de la Cierva 3, 28006, Madrid, Spain
| | - Ainhoa Oliden
- Departamento Química Física, Universidad del País Vasco-EHU, Aptd. 644, 48080, Bilbao, Spain
| | - Jorge Bañuelos
- Departamento Química Física, Universidad del País Vasco-EHU, Aptd. 644, 48080, Bilbao, Spain
| | - Iñigo López-Arbeloa
- Departamento Química Física, Universidad del País Vasco-EHU, Aptd. 644, 48080, Bilbao, Spain
| | - Inmaculada García-Moreno
- Departamento de Sistemas de baja Dimensionalidad, SuperficiesyMateria Condensada, Instituto de Química Física Rocasolano, CSIC, Serrano 119, 28006, Madrid, Spain
| | - Ana M Gómez
- Bio-organic Chemistry Department, Instituto de Química Orgánica General (IQOG-CSIC), Juan de la Cierva 3, 28006, Madrid, Spain
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15
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Farràs P, Cucinotta F. Recent advances in artificial photosynthetic systems at Newcastle University. CR CHIM 2017. [DOI: 10.1016/j.crci.2015.11.025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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16
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Wickham LM, Tanski JM, Nadeau JM. Crystal structure of a fluorescent C-shaped molecule containing closely stacked bithiophene-substituted quinoxaline rings. ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 2017; 73:276-279. [PMID: 28257025 DOI: 10.1107/s2053229617001991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Accepted: 02/07/2017] [Indexed: 11/10/2022]
Abstract
Molecules with well-defined structures that feature closely stacked aromatic rings are important for understanding π-π interactions. A previously reported C-shaped molecule with bithiophene-substituted quinoxaline rings suspended from an aliphatic bridge that holds the aromatic rings in close proximity exists as a pair of syn and anti diastereomers. The anti isomer, namely (1α,2β,4β,5α,16α,17β,19β,20α)-1,5,16,20-tetrachloro-31,31,32,32-tetramethoxy-11,26-bis[5-(thiophen-2-yl)thiophen-2-yl]-7,14,22,29-tetraazanonacyclo[18.10.1.15,16.02,19.04,17.06,15.08,13.021,30.023,28]dotriaconta-6(15),7,9,11,13,21(30),22,24,26,28-decaene chloroform monosolvate, C48H36Cl4N4O4S4·CHCl3, whose X-ray structure is described herein, has cofacial quinoxaline rings with bithiophene rings attached on opposite sides. The molecular structure is approximately C-shaped and consists of an aliphatic spacer with a boat-shaped cyclohexane ring in the middle. The centroid-to-centroid distance between the quinoxaline rings is 3.950 (1) Å, with ring-offset distances of 0.354 (3) and 0.816 (2) Å. The pendant bithiophene rings are oriented parallel to one another, which results from the thiophene rings connected to the quinoxaline rings being oriented such that their S atoms are rotated inward toward one another, but are not overlapped. Intermolecular packing is largely governed by van der Waals forces and a few weak C-H...X (X = N or O) interactions.
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Affiliation(s)
- Laura M Wickham
- Department of Chemistry, Biochemistry, and Physics, Marist College, 3399 North Road, Poughkeepsie, NY 12601, USA
| | - Joseph M Tanski
- Department of Chemistry, Vassar College, 124 Raymond Avenue, Poughkeepsie, NY 12604, USA
| | - Jocelyn M Nadeau
- Department of Chemistry, Biochemistry, and Physics, Marist College, 3399 North Road, Poughkeepsie, NY 12601, USA
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17
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Cook RE, Phelan BT, Kamire RJ, Majewski MB, Young RM, Wasielewski MR. Excimer Formation and Symmetry-Breaking Charge Transfer in Cofacial Perylene Dimers. J Phys Chem A 2017; 121:1607-1615. [DOI: 10.1021/acs.jpca.6b12644] [Citation(s) in RCA: 80] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Rita E. Cook
- Department of Chemistry and
Argonne−Northwestern Solar Energy Research (ANSER) Center, Northwestern University, Evanston, Illinois 60208-3113, United States
| | - Brian T. Phelan
- Department of Chemistry and
Argonne−Northwestern Solar Energy Research (ANSER) Center, Northwestern University, Evanston, Illinois 60208-3113, United States
| | - Rebecca J. Kamire
- Department of Chemistry and
Argonne−Northwestern Solar Energy Research (ANSER) Center, Northwestern University, Evanston, Illinois 60208-3113, United States
| | - Marek B. Majewski
- Department of Chemistry and
Argonne−Northwestern Solar Energy Research (ANSER) Center, Northwestern University, Evanston, Illinois 60208-3113, United States
| | - Ryan M. Young
- Department of Chemistry and
Argonne−Northwestern Solar Energy Research (ANSER) Center, Northwestern University, Evanston, Illinois 60208-3113, United States
| | - Michael R. Wasielewski
- Department of Chemistry and
Argonne−Northwestern Solar Energy Research (ANSER) Center, Northwestern University, Evanston, Illinois 60208-3113, United States
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18
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Maeda C, Nagahata K, Ema T. Carbazole-based BODIPYs with ethynyl substituents at the boron center: solid-state excimer fluorescence in the VIS/NIR region. Org Biomol Chem 2017; 15:7783-7788. [DOI: 10.1039/c7ob01473b] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Carbazole-based BODIPYs 1–6 with several different substituents at the boron atom site were synthesized.
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Affiliation(s)
- Chihiro Maeda
- Division of Applied Chemistry
- Graduate School of Natural Science and Technology
- Okayama University
- Okayama 700-8530
- Japan
| | - Keiji Nagahata
- Division of Applied Chemistry
- Graduate School of Natural Science and Technology
- Okayama University
- Okayama 700-8530
- Japan
| | - Tadashi Ema
- Division of Applied Chemistry
- Graduate School of Natural Science and Technology
- Okayama University
- Okayama 700-8530
- Japan
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19
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Synthesis and spectroscopic studies of highly fluorescent, solvatochromic diastereomers with differentially stacked bithiophene-substituted quinoxaline rings. Tetrahedron 2017. [DOI: 10.1016/j.tet.2016.11.044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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20
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Vanessa Saura A, Isabel Burguete M, Galindo F, Luis SV. Novel fluorescent anthracene–bodipy dyads displaying sensitivity to pH and turn-on behaviour towards Cu(ii) ions. Org Biomol Chem 2017; 15:3013-3024. [DOI: 10.1039/c7ob00274b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The effect of the nature of the spacer in three new bichromophoric compounds showing intramolecular PET and EET processes has been studied.
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Affiliation(s)
- A. Vanessa Saura
- Universitat Jaume I
- Departamento de Química Inorgánica y Orgánica
- Castellón
- Spain
| | - M. Isabel Burguete
- Universitat Jaume I
- Departamento de Química Inorgánica y Orgánica
- Castellón
- Spain
| | - Francisco Galindo
- Universitat Jaume I
- Departamento de Química Inorgánica y Orgánica
- Castellón
- Spain
| | - Santiago V. Luis
- Universitat Jaume I
- Departamento de Química Inorgánica y Orgánica
- Castellón
- Spain
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21
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Thakare S, Stachelek P, Mula S, More AB, Chattopadhyay S, Ray AK, Sekar N, Ziessel R, Harriman A. Solvent-Driven Conformational Exchange for Amide-Linked Bichromophoric BODIPY Derivatives. Chemistry 2016; 22:14356-66. [DOI: 10.1002/chem.201602354] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Indexed: 01/09/2023]
Affiliation(s)
- Shrikant Thakare
- Department of Dyestuff Technology; Institute of Chemical Technology; Mumbai 400019 India
| | - Patrycja Stachelek
- Molecular Photonics Laboratory; School of Chemistry; Newcastle University; Bedson Building Newcastle upon Tyne NE1 7RU UK
| | - Soumyaditya Mula
- Bio-Organic Division; Bhabha Atomic Research Centre; Mumbai 400085 India
| | - Ankush B. More
- Department of Dyestuff Technology; Institute of Chemical Technology; Mumbai 400019 India
| | | | - Alok K. Ray
- Laser and Plasma Technology Division; Bhabha Atomic Research Centre; Mumbai 400085 India
| | - Nagaiyan Sekar
- Department of Dyestuff Technology; Institute of Chemical Technology; Mumbai 400019 India
| | - Raymond Ziessel
- Laboratoire de Chimie Organique et Spectroscopies Avancées (LCOSA); Ecole Européenne de Chimie; Polymères et Matériaux; Université de Strasbourg; 25 rue Becquerel 67087 Strasbourg Cedex 02 France
| | - Anthony Harriman
- Molecular Photonics Laboratory; School of Chemistry; Newcastle University; Bedson Building Newcastle upon Tyne NE1 7RU UK
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22
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Mesoscopic quantum emitters from deterministic aggregates of conjugated polymers. Proc Natl Acad Sci U S A 2015; 112:E5560-6. [PMID: 26417079 DOI: 10.1073/pnas.1512582112] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
An appealing definition of the term "molecule" arises from consideration of the nature of fluorescence, with discrete molecular entities emitting a stream of single photons. We address the question of how large a molecular object may become by growing deterministic aggregates from single conjugated polymer chains. Even particles containing dozens of individual chains still behave as single quantum emitters due to efficient excitation energy transfer, whereas the brightness is raised due to the increased absorption cross-section of the suprastructure. Excitation energy can delocalize between individual polymer chromophores in these aggregates by both coherent and incoherent coupling, which are differentiated by their distinct spectroscopic fingerprints. Coherent coupling is identified by a 10-fold increase in excited-state lifetime and a corresponding spectral red shift. Exciton quenching due to incoherent FRET becomes more significant as aggregate size increases, resulting in single-aggregate emission characterized by strong blinking. This mesoscale approach allows us to identify intermolecular interactions which do not exist in isolated chains and are inaccessible in bulk films where they are present but masked by disorder.
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23
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Bell NC, Doyle SJ, Battistelli G, LeGuyader CLM, Thompson MP, Poe AM, Montalti M, Thayumanavan S, Tauber MJ, Gianneschi NC. Dye Encapsulation in Polynorbornene Micelles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:9707-9717. [PMID: 26305151 PMCID: PMC4921242 DOI: 10.1021/acs.langmuir.5b01822] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The encapsulation efficiency of high-Tg polynorbornene micelles was probed with a hydrophobic dye 2,6-diiodoboron-dipyrromethene (BODIPY). Changes in the visible absorption spectra of aggregated versus monomeric dye molecules provided a probe for assessing encapsulation. Polynorbornene micelles are found to be capable of loading up to one BODIPY dye per ten polymers. As the hydrophilic block size increased in the polymeric amphiphiles, more of the dye was incorporated within the micelles. This result is consistent with the dye associating with the polymer backbone in the shell of the micelles. The encapsulation rate varied significantly with temperature, and a slight dependence on micellar morphology was also noted. Additionally, we report a 740 μs triplet lifetime for the encapsulated BODIPY dye. The lifetime is the longest ever recorded for a BODIPY triplet excited state at room temperature and is attributed to hindered triplet-triplet annihilation in the high-viscosity micellar shell.
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Affiliation(s)
- Nia C. Bell
- Department of Chemistry & Biochemistry, University of California San Diego, 9500 Gilman Drive, MC 0343, La Jolla, CA, 92093, USA
| | - Samantha J. Doyle
- Department of Chemistry & Biochemistry, University of California San Diego, 9500 Gilman Drive, MC 0343, La Jolla, CA, 92093, USA
| | - Giulia Battistelli
- Department of Chemistry "G. Ciamician", University of Bologna, Via Selmi 2, Bologna, Italy
| | - Clare L. M. LeGuyader
- Department of Chemistry & Biochemistry, University of California San Diego, 9500 Gilman Drive, MC 0343, La Jolla, CA, 92093, USA
| | - Matthew P. Thompson
- Department of Chemistry & Biochemistry, University of California San Diego, 9500 Gilman Drive, MC 0343, La Jolla, CA, 92093, USA
| | - Ambata M. Poe
- Department of Chemistry, University of Massachusetts, 710 North Pleasant Street, Massachusetts 01003-9336, USA
| | - Marco Montalti
- Department of Chemistry "G. Ciamician", University of Bologna, Via Selmi 2, Bologna, Italy
| | - S. Thayumanavan
- Department of Chemistry, University of Massachusetts, 710 North Pleasant Street, Massachusetts 01003-9336, USA
| | - Michael J. Tauber
- Department of Chemistry & Biochemistry, University of California San Diego, 9500 Gilman Drive, MC 0343, La Jolla, CA, 92093, USA
| | - Nathan C. Gianneschi
- Department of Chemistry & Biochemistry, University of California San Diego, 9500 Gilman Drive, MC 0343, La Jolla, CA, 92093, USA
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24
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Betancourt-Mendiola L, Valois-Escamilla I, Arbeloa T, Bañuelos J, López Arbeloa I, Flores-Rizo JO, Hu R, Lager E, Gómez-Durán CFA, Belmonte-Vázquez JL, Martínez-González MR, Arroyo IJ, Osorio-Martínez CA, Alvarado-Martínez E, Urías-Benavides A, Gutiérrez-Ramos BD, Tang BZ, Peña-Cabrera E. Scope and Limitations of the Liebeskind–Srogl Cross-Coupling Reactions Involving the Biellmann BODIPY. J Org Chem 2015; 80:5771-82. [DOI: 10.1021/acs.joc.5b00731] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
| | - Ismael Valois-Escamilla
- Departamento
de Química, Universidad de Guanajuato, Col. Noria Alta S/N, Guanajuato 36050, Mexico
| | - Teresa Arbeloa
- Departamento
de Química Física, Universidad del País Vasco-EHU, Apartado 644, 48080 Bilbao, Spain
| | - Jorge Bañuelos
- Departamento
de Química Física, Universidad del País Vasco-EHU, Apartado 644, 48080 Bilbao, Spain
| | - Iñigo López Arbeloa
- Departamento
de Química Física, Universidad del País Vasco-EHU, Apartado 644, 48080 Bilbao, Spain
| | - Juan O. Flores-Rizo
- Departamento
de Química, Universidad de Guanajuato, Col. Noria Alta S/N, Guanajuato 36050, Mexico
| | - Rongrong Hu
- Department of Chemistry, The Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Erik Lager
- Departamento
de Química, Universidad de Guanajuato, Col. Noria Alta S/N, Guanajuato 36050, Mexico
| | - César F. A. Gómez-Durán
- Departamento
de Química, Universidad de Guanajuato, Col. Noria Alta S/N, Guanajuato 36050, Mexico
| | - José L. Belmonte-Vázquez
- Departamento
de Química, Universidad de Guanajuato, Col. Noria Alta S/N, Guanajuato 36050, Mexico
| | | | - Ismael J. Arroyo
- Departamento
de Química, Universidad de Guanajuato, Col. Noria Alta S/N, Guanajuato 36050, Mexico
| | | | | | - Arlette Urías-Benavides
- Departamento
de Química, Universidad de Guanajuato, Col. Noria Alta S/N, Guanajuato 36050, Mexico
| | | | - Ben Zhong Tang
- Department of Chemistry, The Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Eduardo Peña-Cabrera
- Departamento
de Química, Universidad de Guanajuato, Col. Noria Alta S/N, Guanajuato 36050, Mexico
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25
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Zhang C, Zhao J, Cui X, Wu X. Thiol-Activated Triplet–Triplet Annihilation Upconversion: Study of the Different Quenching Effect of Electron Acceptor on the Singlet and Triplet Excited States of Bodipy. J Org Chem 2015; 80:5674-86. [PMID: 25941747 DOI: 10.1021/acs.joc.5b00557] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Caishun Zhang
- State Key Laboratory of Fine
Chemicals, School of Chemical Engineering, Dalian University of Technology, E-208 West Campus, 2 Ling Gong Road, Dalian 116024, P.R. China
| | - Jianzhang Zhao
- State Key Laboratory of Fine
Chemicals, School of Chemical Engineering, Dalian University of Technology, E-208 West Campus, 2 Ling Gong Road, Dalian 116024, P.R. China
| | - Xiaoneng Cui
- State Key Laboratory of Fine
Chemicals, School of Chemical Engineering, Dalian University of Technology, E-208 West Campus, 2 Ling Gong Road, Dalian 116024, P.R. China
| | - Xueyan Wu
- State Key Laboratory of Fine
Chemicals, School of Chemical Engineering, Dalian University of Technology, E-208 West Campus, 2 Ling Gong Road, Dalian 116024, P.R. China
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26
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Kursunlu AN. Porphyrin–Bodipy combination: synthesis, characterization and antenna effect. RSC Adv 2014. [DOI: 10.1039/c4ra09024a] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
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27
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Han M, Tian Y, Yuan Z, Zhu L, Ma B. A Phosphorescent Molecular “Butterfly” that undergoes a Photoinduced Structural Change allowing Temperature Sensing and White Emission. Angew Chem Int Ed Engl 2014; 53:10908-12. [DOI: 10.1002/anie.201405293] [Citation(s) in RCA: 119] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2014] [Indexed: 01/06/2023]
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28
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Han M, Tian Y, Yuan Z, Zhu L, Ma B. A Phosphorescent Molecular “Butterfly” that undergoes a Photoinduced Structural Change allowing Temperature Sensing and White Emission. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201405293] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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29
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Bessette A, Hanan GS. Design, synthesis and photophysical studies of dipyrromethene-based materials: insights into their applications in organic photovoltaic devices. Chem Soc Rev 2014; 43:3342-405. [PMID: 24577078 DOI: 10.1039/c3cs60411j] [Citation(s) in RCA: 351] [Impact Index Per Article: 35.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
This review article presents the most recent developments in the use of materials based on dipyrromethene (DPM) and azadipyrromethenes (ADPM) for organic photovoltaic (OPV) applications. These chromophores and their corresponding BF2-chelated derivatives BODIPY and aza-BODIPY, respectively, are well known for fluorescence-based applications but are relatively new in the field of photovoltaic research. This review examines the variety of relevant designs, synthetic methodologies and photophysical studies related to materials that incorporate these porphyrinoid-related dyes in their architecture. The main idea is to inspire readers to explore new avenues in the design of next generation small-molecule and bulk-heterojunction solar cell (BHJSC) OPV materials based on DPM chromophores. The main concepts are briefly explained, along with the main challenges that are to be resolved in order to take full advantage of solar energy.
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Affiliation(s)
- André Bessette
- Département de Chimie, Université de Montréal, Pavillon J.-A. Bombardier, 5155 Decelles Avenue, Montréal, Québec H3T-2B1, Canada.
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30
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Zhang XF, Yang X. Photosensitizer that selectively generates singlet oxygen in nonpolar environments: photophysical mechanism and efficiency for a covalent BODIPY dimer. J Phys Chem B 2013; 117:9050-5. [PMID: 23837434 DOI: 10.1021/jp405102m] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Photosensitizers that selectively generate singlet oxygen in non polar/polar microenvironments are highly desirable for photodynamic therapy of tumor but not yet reported. BODIPY (boron-dipyrromethene complexes) covalent dimer 1 is such a photosensitizer that forms singlet oxygen only in hexane, cyclohexane, and toluene significantly but not in polar solvents. Its corresponding monomer is not photoactive in any solvents for forming singlet oxygen. To reveal the mechanism, we measured the excited triplet-, singlet-, and ground-state properties as well as singlet oxygen generation capability with laser flash photolysis, fluorescence spectroscopy, time-correlated single photon counting, and absorption spectroscopy in various solvents. The striking difference is due to the fact that the excited dimer (excimer) undergoes very fast intramolecular charge transfer (ICT) that makes intersystem crossing noncompetitive in polar solvents, while ICT is negligible in nonpolar solvents.
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Affiliation(s)
- Xian-Fu Zhang
- Chemistry Department & Center of Instrumental Analysis, Hebei Normal University of Science and Technology, Qinhuangdao, Hebei Province, 066004 China.
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31
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Vincent M, Beabout E, Bennett R, Hewavitharanage P. Synthesis and properties of amphiphilic BODIPY derivatives bearing hydroxyl groups. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.01.128] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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32
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Alamiry MAH, Bahaidarah E, Harriman A, Olivier JH, Ziessel R. Influence of applied pressure on the probability of electronic energy transfer across a molecular dyad. PURE APPL CHEM 2013. [DOI: 10.1351/pac-con-12-09-04] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A pair of covalently linked molecular dyads is described in which two disparate
boron dipyrromethene dyes are separated by a tolane-like spacer. Efficient
electronic energy transfer (EET) occurs across the dyad; the mechanism involves
important contributions from both Förster-type coulombic interactions and
Dexter-type electron exchange processes. The energy acceptor is equipped with
long paraffinic chains that favor aggregation at high concentration or at low
temperature. The aggregate displays red-shifted absorption and emission spectral
profiles, relative to the monomer, such that EET is less efficient because of a
weaker overlap integral. The donor unit is insensitive to applied pressure but
this is not so for the acceptor, which has extended π-conjugation associated
with appended styryl groups. Here, pressure reduces the effective π-conjugation
length, leading to a new absorption band at higher energy. With increasing
pressure, the overall EET probability falls but this effect is nonlinear and at
modest pressure there is only a small recovery of donor fluorescence. This
situation likely arises from compensatory phenomena such as restricted rotation
and decreased dipole screening by the solvent. However, the probability of EET
falls dramatically over the regime where the π-conjugation length is reduced
owing to the presumed conformational exchange. It appears that the
pressure-induced conformer is a poor energy acceptor.
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Affiliation(s)
- Mohammed A. H. Alamiry
- 1Molecular Photonics Laboratory, School of Chemistry, Bedson Building, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK
| | - Effat Bahaidarah
- 1Molecular Photonics Laboratory, School of Chemistry, Bedson Building, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK
| | - Anthony Harriman
- 1Molecular Photonics Laboratory, School of Chemistry, Bedson Building, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK
| | - Jean-Hubert Olivier
- 2Laboratoire de Chimie Moléculaire et Spectroscopies Avancées LCOSA, Ecole Européenne de Chimie, Polymères et Matériaux, CNRS, UMR 7515 associé au CNRS, 25 rue Becquerel, 67087 Strasbourg Cedex 02, France
| | - Raymond Ziessel
- 2Laboratoire de Chimie Moléculaire et Spectroscopies Avancées LCOSA, Ecole Européenne de Chimie, Polymères et Matériaux, CNRS, UMR 7515 associé au CNRS, 25 rue Becquerel, 67087 Strasbourg Cedex 02, France
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