1
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Waly SMA, Benniston AC, Harriman A. Deducing the conformational space for an octa-proline helix. Chem Sci 2024; 15:1657-1671. [PMID: 38303943 PMCID: PMC10829019 DOI: 10.1039/d3sc05287g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 12/20/2023] [Indexed: 02/03/2024] Open
Abstract
A molecular dyad, PY-P8-PER, comprising a proline octamer sandwiched between pyrene and perylene terminals has been synthesized in order to address the dynamics of electronic energy transfer (EET) along the oligo-proline chain. A simple pyrene-based control compound equipped with a bis-proline attachment serves as a reference for spectroscopic studies. The N-H NMR signal at the terminal pyrene allows distinction between cis and trans amides and, although the crystal structure for the control has the trans conformation, temperature-dependent NMR studies provide clear evidence for trans/cis isomerisation in D6-DMSO. Polar solvents tend to stabilise the trans structure for the pyrene amide group, even for longer oligo-proline units. Circular dichroism shows that the proline spacer for PY-P8-PER exists mainly in the all-trans geometry in methanol. Preferential excitation of the pyrene chromophore is possible at wavelengths in the 320-350 nm range and, for the dyad, is followed by efficacious EET to the perylene emitter. The probability for intramolecular EET, obtained from analysis of steady-state spectroscopic data, is ca. 80-90% in solvents of disparate polarity. Comparison with the Förster critical distance suggests the terminals are ca. 18 Å apart. Time-resolved fluorescence spectroscopy, in conjunction with DFT calculations, indicates the dyad exists as a handful of conformers displaying a narrow range of EET rates. Optimisation of a distributive model allows accurate simulation of the EET dynamics in terms of reasonable structures based on isomerisation of certain amide groups.
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Affiliation(s)
- Sara M A Waly
- Molecular Photonics Laboratory, Bedson Building, School of Natural and Environmental Sciences, Newcastle University Newcastle upon Tyne NE1 7RU UK
| | - Andrew C Benniston
- Molecular Photonics Laboratory, Bedson Building, School of Natural and Environmental Sciences, Newcastle University Newcastle upon Tyne NE1 7RU UK
| | - Anthony Harriman
- Molecular Photonics Laboratory, Bedson Building, School of Natural and Environmental Sciences, Newcastle University Newcastle upon Tyne NE1 7RU UK
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2
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Fanciullo G, Conti I, Didier P, Klymchenko A, Léonard J, Garavelli M, Rivalta I. Modelling quenching mechanisms of disordered molecular systems in the presence of molecular aggregates. Phys Chem Chem Phys 2022; 24:1787-1794. [PMID: 34985481 DOI: 10.1039/d1cp04260b] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Exciton density dynamics recorded in time-resolved spectroscopic measurements is a useful tool to recover information on energy transfer (ET) processes that can occur at different timescales, up to the ultrafast regime. Macroscopic models of exciton density decays, involving both direct Förster-like ET and diffusion mechanisms for exciton-exciton annihilation, are largely used to fit time-resolved experimental data but generally neglect contributions from molecular aggregates that can work as quenching species. In this work, we introduce a macroscopic model that includes contributions from molecular aggregate quenchers in a disordered molecular system. As an exemplifying case, we considered a homogenous distribution of rhodamine B dyes embedded in organic nanoparticles to set the initial parameters of the proposed model. The influence of such model parameters is systematically analysed, showing that the presence of molecular aggregate quenchers can be monitored by evaluating the exciton density long time decays. We showed that the proposed model can be applied to molecular systems with ultrafast decays, and we anticipated that it could be used in future studies for global fitting of experimental data with potential support from first-principles simulations.
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Affiliation(s)
- Giacomo Fanciullo
- Dipartimento di Chimica Industriale "Toso Montanari", ALMA MATER STUDIORUM, Università di Bologna, Viale del Risorgimento 4, 40126 Bologna, Italy.
| | - Irene Conti
- Dipartimento di Chimica Industriale "Toso Montanari", ALMA MATER STUDIORUM, Università di Bologna, Viale del Risorgimento 4, 40126 Bologna, Italy.
| | - Pascal Didier
- Laboratoire de Bioimagerie et Pathologies, UMR 7021 CNRS, Université de Strasbourg, 74 Route du Rhin, 67401 Illkirch, France
| | - Andrey Klymchenko
- Laboratoire de Bioimagerie et Pathologies, UMR 7021 CNRS, Université de Strasbourg, 74 Route du Rhin, 67401 Illkirch, France
| | - Jérémie Léonard
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, F-67000 Strasbourg, France
| | - Marco Garavelli
- Dipartimento di Chimica Industriale "Toso Montanari", ALMA MATER STUDIORUM, Università di Bologna, Viale del Risorgimento 4, 40126 Bologna, Italy.
| | - Ivan Rivalta
- Dipartimento di Chimica Industriale "Toso Montanari", ALMA MATER STUDIORUM, Università di Bologna, Viale del Risorgimento 4, 40126 Bologna, Italy. .,Université de Lyon, École Normale Supérieure de Lyon, Université Lyon 1, CNRS UMR 5182, Laboratoire de Chimie, 46 Allée d'Italie, F69364 Lyon, France
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3
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Chen K, Hussain M, Razi SS, Hou Y, Yildiz EA, Zhao J, Yaglioglu HG, Donato MD. Anthryl-Appended Platinum(II) Schiff Base Complexes: Exceptionally Small Stokes Shift, Triplet Excited States Equilibrium, and Application in Triplet-Triplet-Annihilation Upconversion. Inorg Chem 2020; 59:14731-14745. [PMID: 32864961 DOI: 10.1021/acs.inorgchem.0c01932] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Two anthryl platinum(II) N,N'-bis(3,5-di-tert-butylsalicylidene)-1,2-benzenediamine Schiff base complexes were synthesized, with the anthryl attached via its 9 position (Pt-9An) or 2 position (Pt-2An) to the platinum (Pt) Schiff base backbone. The complexes show unusually small Stokes shifts (0.23 eV), representing a very small energy loss for the photoexcitation/intersystem crossing process, which is beneficial for applications as triplet photosensitizers. Phosphorescence of the Pt(II) coordination framework (ΦP = 11.0%) is quenched in the anthryl-containing complexes (ΦP = 4.0%) and shows a biexponential decay (τP = 3.4 μs/87% and 18.2 μs/13%) compared to the single-exponential decay of the native Pt(II) Schiff base complex (τP = 3.7 μs). Femtosecond/nanosecond transient absorption spectroscopy suggests an equilibrium between triplet anthracene (3An) and triplet metal-to-ligand charge-transfer (3MLCT) states, with the dark 3An state slightly lower in energy (1.96 eV for Pt-9An and 1.90 eV for Pt-2An) than the emissive 3MLCT state (1.97 eV for Pt-9An and 1.91 eV for Pt-2An). Intramolecular triplet-triplet energy transfer (TTET) and reverse TTET take 4.8 ps/444 ps for Pt-9An and 55 ps/1.7 ns for Pt-2An, respectively. The triplet-state equilibrium extends the triplet-state lifetime of the complexes to 103 μs (Pt-2An) or 163 μs (Pt-9An), in comparison to the native Pt(II) complex, which shows a lifetime of 4.0 μs. The complexes were used for triplet-triplet-annihilation upconversion with perylene as the triplet acceptor. The upconversion quantum yield is up to 15%, and a large anti-Stokes shift (0.75 eV) is achieved by excitation into the singlet metal-to-ligand charge-transfer absorption band (589 nm) of the complexes (anti-Stokes shift is 0.92 eV with 9,10-diphenylanthracene as the acceptor).
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Affiliation(s)
- Kepeng Chen
- 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
| | - Mushraf Hussain
- 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
| | - Syed S Razi
- 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.,Department of Chemistry, Gaya College, Gaya, Constituent Unit of Magadh University, Bodhgaya, Bihar 823001, India
| | - Yuqi Hou
- 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
| | - Elif Akhuseyin Yildiz
- Department of Engineering Physics, Faculty of Engineering, Ankara University, Bes̨evler, Ankara 06100, Turkey
| | - 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
| | - Halime Gul Yaglioglu
- Department of Engineering Physics, Faculty of Engineering, Ankara University, Bes̨evler, Ankara 06100, Turkey
| | - Mariangela Di Donato
- European Laboratory for Non-Linear Spectroscopy, via North Carrara 1, Sesto Fiorentino, Florence 50019, Italy.,ICCOM-CNR via Madonna del Piano 10, Sesto Fiorentino, Florence 50019, Italy
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4
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Avellanal-Zaballa E, Durán-Sampedro G, Prieto-Castañeda A, Agarrabeitia AR, García-Moreno I, López-Arbeloa I, Bañuelos J, Ortiz MJ. Rational molecular design enhancing the photonic performance of red-emitting perylene bisimide dyes. Phys Chem Chem Phys 2018; 19:13210-13218. [PMID: 28492633 DOI: 10.1039/c7cp01626c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report the synthesis of novel multichromophoric organic architectures, where perylene red is decorated with BODIPY and/or hydroxycoumarin dyes acting as light harvesters and energy donors. The computationally-aided photophysical study of these molecular assemblies reveals a broadband absorption which, regardless of the excitation wavelength, leads solely to a bright red-edge emission from perylene bisimide after efficient intramolecular energy transfer hops. The increase of the absorbance of these molecular antennas at key pumping wavelengths enhances the laser action of the commercial perylene red. The herein applied strategy based on energy transfer dye lasers should boost the use of perylene-based dyes as active media for red-emitting lasers.
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Affiliation(s)
- E Avellanal-Zaballa
- Depto. de Química Física, Universidad del Pais Vasco-EHU, Apartado 644, 48080, Bilbao, Spain.
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5
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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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6
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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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7
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Abstract
BODIPY laser dyes constitute a fascinating topic of research in modern photochemistry due to the large variety of options its chromophore offers, which is ready available for a multitude of synthetic routes. Indeed, in the literature one can find a huge battery of compounds based on the indacene core. The possibility of modulating the spectroscopic properties or inducing new photophysical processes by the substitution pattern of the BODIPY dyes has boosted the number of scientific and technological applications for these fluorophores. Along the following lines, I will overview the main results achieved in our laboratory with BODIPYs oriented to optoelectronic as well to biophotonic applications, stressing the more relevant photophysical issues to be considered in the design of a tailor-made BODIPY for a certain application and pointing out some of the remaining challenges.
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Affiliation(s)
- Jorge Bañuelos
- Dpto. Química Física, Universidad del País Vasco (UPV/EHU), Aptdo. 644, 48080, Bilbao, Spain
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8
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Esnal I, Duran-Sampedro G, Agarrabeitia AR, Bañuelos J, García-Moreno I, Macías MA, Peña-Cabrera E, López-Arbeloa I, de la Moya S, Ortiz MJ. Coumarin-BODIPY hybrids by heteroatom linkage: versatile, tunable and photostable dye lasers for UV irradiation. Phys Chem Chem Phys 2015; 17:8239-47. [PMID: 25732124 DOI: 10.1039/c5cp00193e] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Linking amino and hydroxycoumarins to BODIPYs through the amino or hydroxyl group lets the easy construction of unprecedented photostable coumarin-BODIPY hybrids with broadened and enhanced absorption in the UV spectral region, and outstanding wavelength-tunable laser action within the green-to-red spectral region (∼520-680 nm). These laser dyes allow the generation of a valuable tunable UV (∼260-350 nm) laser source by frequency doubling, which is essential to study accurately the photochemistry of biological molecules under solar irradiation. The tunability is achieved by selecting the substitution pattern of the hybrid. Key factors are the linking heteroatom (nitrogen vs. oxygen), the number of coumarin units joined to the BODIPY framework and the involved linking positions.
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Affiliation(s)
- I Esnal
- Depto. de Química Física, Universidad del Pais Vasco-EHU, Apartado 644, 48080, Bilbao, Spain.
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9
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Gartzia-Rivero L, Bañuelos J, López-Arbeloa I. Excitation energy transfer in artificial antennas: from photoactive materials to molecular assemblies. INT REV PHYS CHEM 2015. [DOI: 10.1080/0144235x.2015.1075279] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- L. Gartzia-Rivero
- Dpto. Química Física, Universidad del País Vasco (UPV-EHU), Aptdo. 644, Bilbao 48080, Spain
| | - J. Bañuelos
- Dpto. Química Física, Universidad del País Vasco (UPV-EHU), Aptdo. 644, Bilbao 48080, Spain
| | - I. López-Arbeloa
- Dpto. Química Física, Universidad del País Vasco (UPV-EHU), Aptdo. 644, Bilbao 48080, Spain
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10
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Bartelmess J, Frasconi M, Balakrishnan PB, Signorelli A, Echegoyen L, Pellegrino T, Giordani S. Non-covalent functionalization of carbon nano-onions with pyrene–BODIPY dyads for biological imaging. RSC Adv 2015. [DOI: 10.1039/c5ra07683h] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We report a novel approach based on non-covalent interactions for the functionalization of carbon nano-onions (CNOs) with fluorophores.
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Affiliation(s)
- Juergen Bartelmess
- Istituto Italiano di Tecnologia (IIT)
- Nano Carbon Materials Lab
- 16163 Genova
- Italy
| | - Marco Frasconi
- Istituto Italiano di Tecnologia (IIT)
- Nano Carbon Materials Lab
- 16163 Genova
- Italy
| | - Preethi B. Balakrishnan
- Istituto Italiano di Tecnologia (IIT)
- Drug Discovery and Development Department
- 16163 Genova
- Italy
| | - Angelo Signorelli
- Istituto Italiano di Tecnologia (IIT)
- Nano Carbon Materials Lab
- 16163 Genova
- Italy
| | - Luis Echegoyen
- University of Texas at El Paso
- Department of Chemistry
- El Paso
- USA
| | - Teresa Pellegrino
- Istituto Italiano di Tecnologia (IIT)
- Drug Discovery and Development Department
- 16163 Genova
- Italy
| | - Silvia Giordani
- Istituto Italiano di Tecnologia (IIT)
- Nano Carbon Materials Lab
- 16163 Genova
- Italy
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11
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Kölle P, Pugliesi I, Langhals H, Wilcken R, Esterbauer AJ, de Vivie-Riedle R, Riedle E. Hole-transfer induced energy transfer in perylene diimide dyads with a donor–spacer–acceptor motif. Phys Chem Chem Phys 2015; 17:25061-72. [DOI: 10.1039/c5cp02981c] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Pump–probe spectroscopy, time resolved fluorescence, chemical variation and quantum chemical calculations reveal an efficient energy transfer mechanism enabled by a bright charge transfer state located on the spacer.
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Affiliation(s)
- Patrick Kölle
- Department of Chemistry
- Ludwig-Maximilians-Universität München
- 81377 München
- Germany
| | - Igor Pugliesi
- Lehrstuhl für BioMolekulare Optik
- Ludwig-Maximilians-Universität München
- 80538 München
- Germany
| | - Heinz Langhals
- Department of Chemistry
- Ludwig-Maximilians-Universität München
- 81377 München
- Germany
| | - Roland Wilcken
- Lehrstuhl für BioMolekulare Optik
- Ludwig-Maximilians-Universität München
- 80538 München
- Germany
| | | | | | - Eberhard Riedle
- Lehrstuhl für BioMolekulare Optik
- Ludwig-Maximilians-Universität München
- 80538 München
- Germany
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12
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13
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Boens N, Wang L, Leen V, Yuan P, Verbelen B, Dehaen W, Van der Auweraer M, De Borggraeve WD, Van Meervelt L, Jacobs J, Beljonne D, Tonnelé C, Lazzaroni R, Ruedas-Rama MJ, Orte A, Crovetto L, Talavera EM, Alvarez-Pez JM. 8-HaloBODIPYs and Their 8-(C, N, O, S) Substituted Analogues: Solvent Dependent UV–Vis Spectroscopy, Variable Temperature NMR, Crystal Structure Determination, and Quantum Chemical Calculations. J Phys Chem A 2014; 118:1576-94. [DOI: 10.1021/jp412132y] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Noël Boens
- Department
of Chemistry, Katholieke Universiteit Leuven, Celestijnenlaan 200f − bus
02404, 3001 Leuven, Belgium
| | - Lina Wang
- Department
of Chemistry, Katholieke Universiteit Leuven, Celestijnenlaan 200f − bus
02404, 3001 Leuven, Belgium
| | - Volker Leen
- Department
of Chemistry, Katholieke Universiteit Leuven, Celestijnenlaan 200f − bus
02404, 3001 Leuven, Belgium
| | - Peijia Yuan
- Department
of Chemistry, Katholieke Universiteit Leuven, Celestijnenlaan 200f − bus
02404, 3001 Leuven, Belgium
| | - Bram Verbelen
- Department
of Chemistry, Katholieke Universiteit Leuven, Celestijnenlaan 200f − bus
02404, 3001 Leuven, Belgium
| | - Wim Dehaen
- Department
of Chemistry, Katholieke Universiteit Leuven, Celestijnenlaan 200f − bus
02404, 3001 Leuven, Belgium
| | - Mark Van der Auweraer
- Department
of Chemistry, Katholieke Universiteit Leuven, Celestijnenlaan 200f − bus
02404, 3001 Leuven, Belgium
| | - Wim D. De Borggraeve
- Department
of Chemistry, Katholieke Universiteit Leuven, Celestijnenlaan 200f − bus
02404, 3001 Leuven, Belgium
| | - Luc Van Meervelt
- Department
of Chemistry, Katholieke Universiteit Leuven, Celestijnenlaan 200f − bus
02404, 3001 Leuven, Belgium
| | - Jeroen Jacobs
- Department
of Chemistry, Katholieke Universiteit Leuven, Celestijnenlaan 200f − bus
02404, 3001 Leuven, Belgium
| | - David Beljonne
- Laboratory
for Chemistry of Novel Materials, Université de Mons, Place du Parc
20, 7000 Mons, Belgium
| | - Claire Tonnelé
- Laboratory
for Chemistry of Novel Materials, Université de Mons, Place du Parc
20, 7000 Mons, Belgium
| | - Roberto Lazzaroni
- Laboratory
for Chemistry of Novel Materials, Université de Mons, Place du Parc
20, 7000 Mons, Belgium
| | - Maria J. Ruedas-Rama
- Department
of Physical Chemistry, University of Granada, Cartuja Campus, 18071 Granada, Spain
| | - Angel Orte
- Department
of Physical Chemistry, University of Granada, Cartuja Campus, 18071 Granada, Spain
| | - Luis Crovetto
- Department
of Physical Chemistry, University of Granada, Cartuja Campus, 18071 Granada, Spain
| | - Eva M. Talavera
- Department
of Physical Chemistry, University of Granada, Cartuja Campus, 18071 Granada, Spain
| | - Jose M. Alvarez-Pez
- Department
of Physical Chemistry, University of Granada, Cartuja Campus, 18071 Granada, Spain
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14
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Sánchez-Carnerero EM, Gartzia-Rivero L, Moreno F, Maroto BL, Agarrabeitia AR, Ortiz MJ, Bañuelos J, López-Arbeloa Í, de la Moya S. Spiranic BODIPYs: a ground-breaking design to improve the energy transfer in molecular cassettes. Chem Commun (Camb) 2014; 50:12765-7. [DOI: 10.1039/c4cc05709k] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
From a flexible cassette it is possible to boost the EET by a simple spiranic design.
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Affiliation(s)
| | | | - Florencio Moreno
- Depto. de Química Orgánica I
- Facultad de CC. Químicas
- Universidad Complutense de Madrid
- Madrid, Spain
| | - Beatriz L. Maroto
- Depto. de Química Orgánica I
- Facultad de CC. Químicas
- Universidad Complutense de Madrid
- Madrid, Spain
| | - Antonia R. Agarrabeitia
- Depto. de Química Orgánica I
- Facultad de CC. Químicas
- Universidad Complutense de Madrid
- Madrid, Spain
| | - María J. Ortiz
- Depto. de Química Orgánica I
- Facultad de CC. Químicas
- Universidad Complutense de Madrid
- Madrid, Spain
| | - Jorge Bañuelos
- Depto. de Química Física
- Universidad del Pais Vasco-EHU
- Bilbao, Spain
| | | | - Santiago de la Moya
- Depto. de Química Orgánica I
- Facultad de CC. Químicas
- Universidad Complutense de Madrid
- Madrid, Spain
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15
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Phosphorus(V)corrole- Porphyrin Based Hetero Trimers: Synthesis, Spectroscopy and Photochemistry. J Fluoresc 2013; 24:569-77. [DOI: 10.1007/s10895-013-1328-1] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2013] [Accepted: 11/07/2013] [Indexed: 10/26/2022]
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16
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Gartzia-Rivero L, Yu H, Bañuelos J, López-Arbeloa I, Costela A, Garcia-Moreno I, Xiao Y. Photophysical and laser properties of cassettes based on a BODIPY and rhodamine pair. Chem Asian J 2013; 8:3133-41. [PMID: 24023008 DOI: 10.1002/asia.201300857] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2013] [Indexed: 01/18/2023]
Abstract
This work deals with the synthesis and the photophysical and laser properties of new BODIPY-rhodamine cassettes. These dyads differ in their rigid and conjugated spacer group (phenyl or acetylenephenyl) and in their linking positions (meta or para). The photophysical properties of these cassettes are controlled by the formation/opening of the spirolactone ring, which, in turn, switches off/on an energy-transfer process between the chromophores. Herein, we thoroughly describe the influence of the attached spacer group, as well as the distance and orientation between the donor-acceptor pair, on the excitation energy transfer. The observed fast dynamics and efficiency suggest that the process mainly takes place "through-bond", although the "through-space" mechanism also contributes to the whole process. As a result, efficient laser emission from the rhodamine is achieved upon excitation of the BODIPY, in particular for the cassette that contains an acetylenephenyl spacer group in a para disposition.
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Affiliation(s)
- Leire Gartzia-Rivero
- Departamento de Química Física, Universidad del País Vasco (UPV-EHU), Aptdo 644, 48080, Bilbao (Spain)
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17
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Giribabu L, Reeta PS, Kanaparthi RK, Srikanth M, Soujanya Y. Bis(porphyrin)–Anthraquinone Triads: Synthesis, Spectroscopy, and Photochemistry. J Phys Chem A 2013; 117:2944-51. [DOI: 10.1021/jp312134a] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- L. Giribabu
- Inorganic & Physical Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, A.P., India
| | - P. Silviya Reeta
- Inorganic & Physical Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, A.P., India
| | - Ravi Kumar Kanaparthi
- Inorganic & Physical Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, A.P., India
| | - Malladi Srikanth
- Molecular Modelling Group, Indian Institute of Chemical Technology, Hyderabad
500067, A.P., India
| | - Y. Soujanya
- Molecular Modelling Group, Indian Institute of Chemical Technology, Hyderabad
500067, A.P., India
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Wang L, Verbelen B, Tonnelé C, Beljonne D, Lazzaroni R, Leen V, Dehaen W, Boens N. UV–vis spectroscopy of the coupling products of the palladium-catalyzed C–H arylation of the BODIPY core. Photochem Photobiol Sci 2013; 12:835-47. [DOI: 10.1039/c3pp25385f] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Bai D, Benniston AC, Hagon J, Lemmetyinen H, Tkachenko NV, Harrington RW. Tuning the Förster overlap integral: energy transfer over 20 Ångstroms from a pyrene-based donor to borondipyrromethene (Bodipy). Phys Chem Chem Phys 2013; 15:9854-61. [DOI: 10.1039/c3cp50173f] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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