1
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de Jesus Velazquez-Garcia J, Basuroy K, Wong J, Demeshko S, Meyer F, Kim I, Henning R, Staechelin YU, Lange H, Techert S. Out-of-equilibrium dynamics of a grid-like Fe(ii) spin crossover dimer triggered by a two-photon excitation. Chem Sci 2024; 15:13531-13540. [PMID: 39183926 PMCID: PMC11339940 DOI: 10.1039/d4sc02933j] [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: 05/03/2024] [Accepted: 07/24/2024] [Indexed: 08/27/2024] Open
Abstract
The application of two-photon excitation (TPE) in the study of light-responsive materials holds immense potential due to its deeper penetration and reduced photodamage. Despite these benefits, TPE has been underutilised in the investigation of the photoinduced spin crossover (SCO) phenomenon. Here, we employ TPE to delve into the out-of-equilibrium dynamics of a SCO FeII dimer of the form [FeII(HL)2]2(BF4)4·2MeCN (HL = 3,5-bis{6-(2,2'-bipyridyl)}pyrazole). Optical transient absorption (OTA) spectroscopy in solution proves that the same dynamics take place under both one-photon excitation (OPE) and TPE. The results show the emergence of the photoinduced high spin state in less than 2 ps and with a lifetime of 147 ns. Time-resolved photocrystallography (TRXRD) reveals a single molecular reorganisation within the first 500 ps following TPE. Additionally, variable temperature single crystal X-ray diffraction (VTSCXRD) and magnetic susceptibility measurements confirm that the thermal transition is silenced by the solvent. While the results of the OTA and TRXRD utilising TPE are intriguing, the high pump fluencies required to excite enough metal centres to the high spin state may impair its practical application. Nonetheless, this study sheds light on the potential of TPE for the investigation of the out-of-equilibrium dynamics of SCO complexes.
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Affiliation(s)
| | - Krishnayan Basuroy
- Deutsches Elektronen-Synchrotron DESY Notkestr. 85 22607 Hamburg Germany
| | - Joanne Wong
- Institut für Anorganische Chemie, Georg-August-Universität Göttingen Tammannstraße 4 Göttingen 37077 Germany
| | - Serhiy Demeshko
- Institut für Anorganische Chemie, Georg-August-Universität Göttingen Tammannstraße 4 Göttingen 37077 Germany
| | - Franc Meyer
- Institut für Anorganische Chemie, Georg-August-Universität Göttingen Tammannstraße 4 Göttingen 37077 Germany
| | - Insik Kim
- Center for Advanced Radiation Sources, The University of Chicago, Argonne National Laboratory 9700 South Cass Ave Lemont Illinois 90439 USA
| | - Robert Henning
- Center for Advanced Radiation Sources, The University of Chicago, Argonne National Laboratory 9700 South Cass Ave Lemont Illinois 90439 USA
| | - Yannic U Staechelin
- Institute of Physical Chemistry, Universität Hamburg Martin-Luther-King-Platz 6 Hamburg 20146 Germany
| | - Holger Lange
- The Hamburg Center for Ultrafast Imaging, Universität Hamburg 22761 Hamburg Germany
- Institute of Physics and Astronomy, Universität Potsdam Karl-Liebknecht-Str. 24 14476 Potsdam Germany
| | - Simone Techert
- Deutsches Elektronen-Synchrotron DESY Notkestr. 85 22607 Hamburg Germany
- Institut für Röntgenphysik, Georg-August-Universität Göttingen Friedrich-Hund-Platz 1 Göttingen 37077 Germany
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2
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Combination of light and Ru(II) polypyridyl complexes: Recent advances in the development of new anticancer drugs. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214656] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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3
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Han G, Li G, Huang J, Han C, Turro C, Sun Y. Two-photon-absorbing ruthenium complexes enable near infrared light-driven photocatalysis. Nat Commun 2022; 13:2288. [PMID: 35484148 PMCID: PMC9051202 DOI: 10.1038/s41467-022-29981-3] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Accepted: 04/05/2022] [Indexed: 01/01/2023] Open
Abstract
One-photon-absorbing photosensitizers are commonly used in homogeneous photocatalysis which require the absorption of ultraviolet (UV) /visible light to populate the desired excited states with adequate energy and lifetime. Nevertheless, the limited penetration depth and competing absorption by organic substrates of UV/visible light calls upon exploring the utilization of longer-wavelength irradiation, such as near-infrared light (λirr > 700 nm). Despite being found applications in photodynamic therapy and bioimaging, two-photon absorption (TPA), the simultaneous absorption of two photons by one molecule, has been rarely explored in homogeneous photocatalysis. Herein, we report a group of ruthenium polypyridyl complexes possessing TPA capability that can drive a variety of organic transformations upon irradiation with 740 nm light. We demonstrate that these TPA ruthenium complexes can operate in an analogous manner as one-photon-absorbing photosensitizers for both energy-transfer and photoredox reactions, as well as function in concert with a transition metal co-catalyst for metallaphotoredox C-C coupling reactions.
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Affiliation(s)
- Guanqun Han
- Department of Chemistry, University of Cincinnati, Cincinnati, OH, USA
| | - Guodong Li
- Department of Chemistry, University of Cincinnati, Cincinnati, OH, USA
| | - Jie Huang
- Department of Chemistry & Biochemistry, The Ohio State University, Columbus, OH, USA
| | - Chuang Han
- Department of Chemistry, University of Cincinnati, Cincinnati, OH, USA
| | - Claudia Turro
- Department of Chemistry & Biochemistry, The Ohio State University, Columbus, OH, USA.
| | - Yujie Sun
- Department of Chemistry, University of Cincinnati, Cincinnati, OH, USA.
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4
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Scoditti S, Mazzone G, Sicilia E. Computational Analysis of Photophysical Properties and Reactivity of a New Phototherapeutic Cyclometalated Au(III)-Hydride Complex. Chemistry 2021; 27:15528-15535. [PMID: 34546592 DOI: 10.1002/chem.202102701] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Indexed: 01/25/2023]
Abstract
Gold(III) complexes have recently emerged as new versatile and efficacious metal containing anticancer agents. In an attempt to reconcile the specific affinity of such complexes for target sulfur containing biomolecules with their capability to strongly bind thiol-containing compounds widely distributed in non-tumoral cells, a new series of cyclometalated Au(III)-hydride complexes has been proposed as photoactivatable anticancer prodrugs. Here, the computational exploration of the photophysical properties and reactivity in dark and under light irradiation of the first member of the series, named 1 a, is reported. Complex 1 a low hydricity in dark together with facile hydride substitution leading to H2 elimination under excitation by visible light have been examined by means of DFT and TD-DFT computations. Both singlet and triplet excited states have been characterized, allowing the identification of the active species involved in photoactivation pathways leading to the controlled detachment of the hydride ligand. Also the viable two-photon activation at the ideal phototherapeutic window has been investigated.
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Affiliation(s)
- Stefano Scoditti
- Department of Chemistry and Chemical Technologies, University of Calabria, Via P. Bucci, 87036, Rende, CS, Italy
| | - Gloria Mazzone
- Department of Chemistry and Chemical Technologies, University of Calabria, Via P. Bucci, 87036, Rende, CS, Italy
| | - Emilia Sicilia
- Department of Chemistry and Chemical Technologies, University of Calabria, Via P. Bucci, 87036, Rende, CS, Italy
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5
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Molard Y, Taupier G, Paofai S, Cordier S. Evidencing ((n-C4H9)4N)2[W6I14] red–NIR emission and singlet oxygen generation by two photon absorption. Chem Commun (Camb) 2021; 57:4003-4006. [DOI: 10.1039/d1cc00751c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two photon absorption induced NIR emission has been observed for the first time for octahedral transition metal clusters.
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Affiliation(s)
- Yann Molard
- Université de Rennes
- CNRS
- ISCR – UMR 6226
- ScanMAT – UMS 2001
- Rennes F-35000
| | - Gregory Taupier
- Université de Rennes
- CNRS
- ISCR – UMR 6226
- ScanMAT – UMS 2001
- Rennes F-35000
| | - Serge Paofai
- Université de Rennes
- CNRS
- ISCR – UMR 6226
- ScanMAT – UMS 2001
- Rennes F-35000
| | - Stéphane Cordier
- Université de Rennes
- CNRS
- ISCR – UMR 6226
- ScanMAT – UMS 2001
- Rennes F-35000
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6
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Rousset E, Mongin O, Moreau J, Lawson-Daku LM, Beley M, Gros PC, Chevreux S, Blanchard-Desce M, Lemercier G. Molecular engineering for optical properties of 5-substituted-1,10-phenanthroline-based Ru(II) complexes. Dalton Trans 2021; 50:10119-10132. [PMID: 34105562 DOI: 10.1039/d1dt00886b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of homo- and heteroleptic Ru(ii) complexes [Ru(phen)3-n(phen-X)n](PF6)2 (n = 0-3, X = CN, epoxy, H, NH2) were prepared and characterized. The influence of electron-withdrawing or electron-releasing substituents of the 1,10-phenanthroline ligands on the photo-physical properties was evaluated. It reveals fundamental interests in the fine tuning of redox potentials and photo-physical characteristics, depending both on the nature of the substitution of the ligand, and on the symmetry of the related homo- or heteroleptic complex. These complexes exhibit linear absorption and two-photon absorption (2PA) cross-sections over a broad range of wavelength (700-900 nm) due to absorption in the intra-ligand charge transfer (ILCT) and the metal-to-ligand charge transfer (MLCT) bands. These 2PA properties were more particularly investigated in the 700-1000 spectral range for a family of complexes bearing electro-donating ligands (phen-NH2).
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Affiliation(s)
- Elodie Rousset
- Université de Reims Champagne-Ardenne, ICMR UMR CNRS n° 7312 BP 1039-51687, Reims cedex 2, France.
| | - Olivier Mongin
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France
| | - Juliette Moreau
- Université de Reims Champagne-Ardenne, ICMR UMR CNRS n° 7312 BP 1039-51687, Reims cedex 2, France.
| | - Latévi Max Lawson-Daku
- Dépt. de Chimie Physique, Université de Genève, 30, quai E. Ansermet, Geneva 4, CH-1211, Switzerland
| | - Marc Beley
- Université de Lorraine, CNRS, L2CM, Nancy, F54000, France
| | | | - Sylviane Chevreux
- Université de Reims Champagne-Ardenne, ICMR UMR CNRS n° 7312 BP 1039-51687, Reims cedex 2, France. and Chimie ParisTech, PSL University, CNRS, Institut de Recherche de Chimie Paris, 75005 Paris, France
| | - Mireille Blanchard-Desce
- Université Bordeaux, ISM, Centre National de la Recherche Scientifique, UMR 5255, F-33400 Talence, France
| | - Gilles Lemercier
- Université de Reims Champagne-Ardenne, ICMR UMR CNRS n° 7312 BP 1039-51687, Reims cedex 2, France.
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7
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Solute-solvent electronic interaction is responsible for initial charge separation in ruthenium complexes [Ru(bpy)3]2+ and [Ru(phen)3]2+. Commun Chem 2019. [DOI: 10.1038/s42004-019-0213-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Abstract
Origin of the initial charge separation in optically-excited Ruthenium(II) tris(bidentate) complexes of intrinsic D3 symmetry has remained a disputed issue for decades. Here we measure the femtosecond two-photon absorption (2PA) cross section spectra of [Ru(2,2′-bipyridine)3]2 and [Ru(1,10-phenanthroline)3]2 in a series of solvents with varying polarity and show that for vertical transitions to the lower-energy 1MLCT excited state, the permanent electric dipole moment change is nearly solvent-independent, Δμ = 5.1–6.3 D and 5.3–5.9 D, respectively. Comparison of experimental results with quantum-chemical calculations of complexes in the gas phase, in a polarizable dielectric continuum and in solute-solvent clusters containing up to 18 explicit solvent molecules indicate that the non-vanishing permanent dipole moment change in the nominally double-degenerate E-symmetry state is caused by the solute-solvent interaction twisting the two constituent dipoles out of their original opposite orientation, with average angles matching the experimental two-photon polarization ratio.
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8
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Bodapati R, Sahoo C, Gudem M, Das SK. Mononuclear Ru(II) Complexes of an Arene and Asymmetrically Substituted 2,2'-Bipyridine Ligands: Photophysics, Computation, and NLO Properties. Inorg Chem 2019; 58:11470-11479. [PMID: 31429288 DOI: 10.1021/acs.inorgchem.9b01235] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
By using monosubstituted 2,2'-bipyridine asymmetric ancillary ligands with different electron donor moieties and an arene ligand (p-cymene), we successfully designed and synthesized six Ru(II) compounds (RuBPY1-6) that belong to a piano-stool-type system. The NLO properties of the synthesized complexes have been studied in both solution and the solid state. The electronic spectra of these compounds show a broad feature with two absorption bands in the visible window (350-650 nm). RuBPY1-6 complexes exhibit NIR emission spectra in the solution state (at >720 nm), the maxima of which are bathochromically shifted in comparison to those of the concerned ligands. Interestingly, compounds RuBPY1-6 show NIR emission in their solid state too. Title compounds RuBPY1-6 have lifetimes in the range of 0.2 to 0.9 ns. An important feature of this work is the π-association of the p-cymene ligand to Ru(II) in the synthesized complexes; the π complex is formed by breaking the symmetry of p-cymene, found in the starting precursor (Ru2 dimer). This has been established by NMR spectral studies along with DFT calculations on the 1H NMR spectra. We could derive the molecular structure of the cationic part of this system by density functional theory (DFT), associated with 1H NMR spectral studies. The minimum energy structures for RuBPY1 and RuBPY2 have been optimized at DFT/B3LYP along with the LANL2DZ basis set for ruthenium atoms. These optimized structures are further considered to calculate the excited state properties using the TDDFT method. The electrochemical studies of the complexes, investigated in acetonitrile solution, show that this system is associated with a well-defined Ru(III)/Ru(II) reversible couple, rarely observed for a Ru(II) piano-stool-type compound, along with a feature of irreversible ligand oxidation. The absorption cross-section values, obtained from the two-photon absorption studies of title compounds RuBPY1-6, are worth reporting and lie in the range of 3-28 GM (in the femtosecond case).
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Affiliation(s)
- Ramakrishna Bodapati
- School of Chemistry , University of Hyderabad , Central University P.O. , Hyderabad 500 046 , Telangana , India
| | - Chakradhar Sahoo
- School of Physics , University of Hyderabad , Central University P.O. , Hyderabad 500046 , Telangana , India
| | - Mahesh Gudem
- Department of Chemistry , Indian Institute of Science Education and Research Pune , Dr. Homi Bhabha Road , Pune 411008 , Maharashtra , India
| | - Samar K Das
- School of Chemistry , University of Hyderabad , Central University P.O. , Hyderabad 500 046 , Telangana , India
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9
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Lemercier G, Four M, Chevreux S. Two-photon absorption properties of 1,10-phenanthroline-based Ru(II) complexes and related functionalized nanoparticles for potential application in two-photon excitation photodynamic therapy and optical power limiting. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2018.03.019] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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10
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Takematsu K, Wehlin SAM, Sattler W, Winkler JR, Gray HB. Two-photon spectroscopy of tungsten(0) arylisocyanides using nanosecond-pulsed excitation. Dalton Trans 2018; 46:13188-13193. [PMID: 28933480 DOI: 10.1039/c7dt02632c] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The two-photon absorption (TPA) cross sections (δ) for tungsten(0) arylisocyanides (W(CNAr)6) were determined in the 800-1000 nm region using two-photon luminescence (TPL) spectroscopy. The complexes have high TPA cross sections, in the range 1000-2000 GM at 811.8 nm. In comparison, the cross section at 811.8 nm for tris-(2,2'-bipyridine)ruthenium(ii), [Ru(bpy)3]2+, is 7 GM. All measurements were performed using a nanosecond-pulsed laser system.
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Affiliation(s)
- Kana Takematsu
- Beckman Institute, California Institute of Technology, Pasadena CA 91125, USA.
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11
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Dickerson MB, Dennis PB, Tondiglia VP, Nadeau LJ, Singh KM, Drummy LF, Partlow BP, Brown DP, Omenetto FG, Kaplan DL, Naik RR. 3D Printing of Regenerated Silk Fibroin and Antibody-Containing Microstructures via Multiphoton Lithography. ACS Biomater Sci Eng 2017; 3:2064-2075. [DOI: 10.1021/acsbiomaterials.7b00338] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Matthew B. Dickerson
- Materials
and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson
AFB, Ohio 45433, United States
| | - Patrick B. Dennis
- Materials
and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson
AFB, Ohio 45433, United States
| | - Vincent P. Tondiglia
- Materials
and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson
AFB, Ohio 45433, United States
| | - Lloyd J. Nadeau
- Materials
and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson
AFB, Ohio 45433, United States
| | - Kristi M. Singh
- Materials
and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson
AFB, Ohio 45433, United States
| | - Lawrence F. Drummy
- Materials
and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson
AFB, Ohio 45433, United States
| | - Benjamin P. Partlow
- Biomedical
Engineering Department, Tufts University, Medford, Massachusetts 02155, United States
| | - Dean P. Brown
- Materials
and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson
AFB, Ohio 45433, United States
| | - Fiorenzo G. Omenetto
- Biomedical
Engineering Department, Tufts University, Medford, Massachusetts 02155, United States
| | - David L. Kaplan
- Biomedical
Engineering Department, Tufts University, Medford, Massachusetts 02155, United States
| | - Rajesh R. Naik
- 711th Human Performance Wing, Air Force Research Laboratory, Wright-Patterson
AFB, Ohio 45433, United States
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12
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Hess J, Huang H, Kaiser A, Pierroz V, Blacque O, Chao H, Gasser G. Evaluation of the Medicinal Potential of Two Ruthenium(II) Polypyridine Complexes as One- and Two-Photon Photodynamic Therapy Photosensitizers. Chemistry 2017; 23:9888-9896. [DOI: 10.1002/chem.201701392] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Indexed: 01/16/2023]
Affiliation(s)
- Jeannine Hess
- Department of Chemistry; University of Zurich; Winterthurerstrasse 190 8057 Zurich Switzerland
| | - Huaiyi Huang
- Department of Chemistry; University of Zurich; Winterthurerstrasse 190 8057 Zurich Switzerland
- School of Chemistry; Sun Yat-Sen University; Guangzhou 510275 P. R. China
| | - Adrian Kaiser
- Department of Chemistry; University of Zurich; Winterthurerstrasse 190 8057 Zurich Switzerland
| | - Vanessa Pierroz
- Department of Chemistry; University of Zurich; Winterthurerstrasse 190 8057 Zurich Switzerland
| | - Olivier Blacque
- Department of Chemistry; University of Zurich; Winterthurerstrasse 190 8057 Zurich Switzerland
| | - Hui Chao
- School of Chemistry; Sun Yat-Sen University; Guangzhou 510275 P. R. China
| | - Gilles Gasser
- Chimie ParisTech; PSL Research University; Laboratory for Inorganic Chemical Biology; 75005 Paris France
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13
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Ranasinghe K, Handunnetti S, Perera IC, Perera T. Synthesis and characterization of novel rhenium(I) complexes towards potential biological imaging applications. Chem Cent J 2016; 10:71. [PMID: 27942267 PMCID: PMC5123207 DOI: 10.1186/s13065-016-0218-4] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Accepted: 11/10/2016] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Re(I) tricarbonyl complexes exhibit immense potential as fluorescence imaging agents. However, only a handful of rhenium complexes have been utilized in biological imaging. The present study describes the synthesis of four novel rhenium complexes, their characterization and preliminary biological studies to assess their potential as biological imaging agents. RESULTS Four facial rhenium tricarbonyl complexes containing a pyridyl triazine core, (L1 = 5,5'(3-(2-pyridyl)-1,2,4-triazine-5,6-diyl)-bis-2-furansulfonic acid disodium salt and L2 = (3-(2- pyridyl)-5,6-diphenyl-1,2,4-triazine-4',4''-disulfonic acid sodium salt) have been synthesized by utililzing two different Re metal precursors, Re(CO)5Br and [Re(CO)3(H2O)3]OTf in an organic solvent mixture and water, respectively. The rhenium complexes [Re(CO)3(H2O)L1]+ (1), Re(CO)3L1Br (2), [Re(CO)3(H2O)L2]+ (3), and Re(CO)3L2Br (4), were obtained in 70-85% yield and characterized by 1H NMR, IR, UV, and luminescence spectroscopy. In both H2O and acetonitrile, complexes display a weak absorption band in the visible region which can be assigned to a metal to ligand charge transfer excitation and fluorescent emission lying in the 650-710 nm range. Cytotoxicity assays of complexes 1, 3, and 4 were carried out for rat peritoneal cells. Both plant cells (Allium cepa bulb cells) and rat peritoneal cells were stained using the maximum non-toxic concentration levels of the compounds, 20.00 mg ml-1 for 1 and 3 and 5.00 mg ml-1 for 4 to observe under the epifluorescence microscope. In both cell lines, compound concentrated specifically in the nuclei region. Hence, nuclei showed red fluorescence upon excitation at 550 nm. CONCLUSIONS Four novel rhenium complexes have been synthesized and characterized. Remarkable enhancement of fluorescence upon binding with cells and visible range excitability demonstrates the possibility of using the new complexes in biological applications.Graphical abstractMicrograph of rat peritoneal cells incubated with novel rhenium complex under epifluorescence microscope.
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Affiliation(s)
- Kokila Ranasinghe
- Department of Chemistry, University of Sri Jayewardenepura, Nugegoda, Sri Lanka
| | - Shiroma Handunnetti
- Institute of Biochemistry, Molecular Biology and Biotechnology, University of Colombo, Colombo, Sri Lanka
| | - Inoka C. Perera
- Department of Zoology and Environmental Sciences, University of Colombo, Colombo, Sri Lanka
| | - Theshini Perera
- Department of Chemistry, University of Sri Jayewardenepura, Nugegoda, Sri Lanka
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14
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Ford PC. From curiosity to applications. A personal perspective on inorganic photochemistry. Chem Sci 2016; 7:2964-2986. [PMID: 29997786 PMCID: PMC6003602 DOI: 10.1039/c6sc00188b] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Accepted: 02/12/2016] [Indexed: 02/06/2023] Open
Abstract
Over the past several decades, the photochemistry and photophysics of transition metal compounds has blossomed from a relatively niche topic to a major research theme. Applications arising from the elucidation of the fundamental principles defining this field now range from probing the rates and mechanisms of small molecules with metalloproteins to light activated molecular machines. Offered here is a personal perspective of metal complex photochemistry drawn from this author's long involvement with this field. Several examples are described. Topics include characterizing key excited states and tuning these to modify chemical reactivity and/or photoluminescence properties, as well as using photoreactions as an entry to reactive intermediates relevant to homogeneous catalysts. This is followed by discussions of applying these concepts to developing precursors and precursor-antenna conjugates for the photochemical delivery of small molecule bioregulators to physiological targets.
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Affiliation(s)
- Peter C Ford
- Department of Chemistry and Biochemistry , University of California , Santa Barbara , CA 93110-9510 , USA .
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15
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Chen Y, Guan R, Zhang C, Huang J, Ji L, Chao H. Two-photon luminescent metal complexes for bioimaging and cancer phototherapy. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2015.09.010] [Citation(s) in RCA: 146] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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16
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Huang H, Yu B, Zhang P, Huang J, Chen Y, Gasser G, Ji L, Chao H. Highly Charged Ruthenium(II) Polypyridyl Complexes as Lysosome-Localized Photosensitizers for Two-Photon Photodynamic Therapy. Angew Chem Int Ed Engl 2015; 54:14049-52. [DOI: 10.1002/anie.201507800] [Citation(s) in RCA: 324] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Indexed: 01/17/2023]
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17
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Huang H, Yu B, Zhang P, Huang J, Chen Y, Gasser G, Ji L, Chao H. Highly Charged Ruthenium(II) Polypyridyl Complexes as Lysosome‐Localized Photosensitizers for Two‐Photon Photodynamic Therapy. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201507800] [Citation(s) in RCA: 85] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Huaiyi Huang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat‐Sen University, Guangzhou, 510275 (China)
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH‐8057, Zurich (Switzerland)
| | - Bole Yu
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat‐Sen University, Guangzhou, 510275 (China)
| | - Pingyu Zhang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat‐Sen University, Guangzhou, 510275 (China)
| | - Juanjuan Huang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat‐Sen University, Guangzhou, 510275 (China)
| | - Yu Chen
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat‐Sen University, Guangzhou, 510275 (China)
| | - Gilles Gasser
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH‐8057, Zurich (Switzerland)
| | - Liangnian Ji
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat‐Sen University, Guangzhou, 510275 (China)
| | - Hui Chao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat‐Sen University, Guangzhou, 510275 (China)
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Tang TSM, Yip AMH, Zhang KY, Liu HW, Wu PL, Li KF, Cheah KW, Lo KKW. Bioorthogonal Labeling, Bioimaging, and Photocytotoxicity Studies of Phosphorescent Ruthenium(II) Polypyridine Dibenzocyclooctyne Complexes. Chemistry 2015; 21:10729-40. [DOI: 10.1002/chem.201501040] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Indexed: 12/12/2022]
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19
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Zhang MD, Shi ZQ, Chen MD, Zheng HG. Chiral crystallization and optical properties of three metal complexes based on two non-centrosymmetric tripodal ligands. Dalton Trans 2015; 44:5818-25. [PMID: 25715030 DOI: 10.1039/c5dt00292c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Chiral coordination polymers have attracted much attention due to their special properties and significant applications. In this work, we synthesized two non-centrosymmetric ligands, N,N-bis(4-(1H-imidazol-1-yl)phenyl)-4-(pyridin-4-yl)aniline (DIMPPA) and N-(4-(1H-imidazol-1-yl)phenyl)-4-(pyridin-4-yl)-N-(4-(pyridin-4-yl)phenyl)aniline (MIDPPA), via structural modification of two reported centrosymmetric ligands; after that achiral → chiral induction occurred in the construction of three coordination polymers namely {[Cd(DIMPPA)(5-OH-bdc)](H2O)}n (1), {[Co(DIMPPA)(5-OH-bdc)](H2O)}n (2) and {[Cd2(MIDPPA)2(D-ca)2(H2O)2](H2O)5}n (3), when replacing the reported centrosymmetric ligands with non-centrosymmetric ligands (5-OH-H2bdc = 5-hydroxyisophthalic acid, D-H2ca = D-camphoric acid). Isostructural complexes 1 and 2 exhibit chiral 2D → 3D frameworks with the coexistence of polyrotaxane and parallel polycatenation features. Complex 3 shows two-fold interpenetrating 3D chiral architecture with cds-type topology. The luminescence emissions of both complexes 1 and 3 are mostly assignable to the internal π→π* electron transition in DIMPPA and MIDPPA, respectively. Complex 3 can satisfy the fundamental requirement of second-order nonlinear optical materials.
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Affiliation(s)
- Ming-Dao Zhang
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, P. R. China.
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20
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Liu J, Jia X, Li G, Zhao B, Zhao J, Wang X, Wang T. Synthesis and optical properties of a D–A–D cationic cyclopentadienyl iron complex containing double arylazo chromophores. RESEARCH ON CHEMICAL INTERMEDIATES 2014. [DOI: 10.1007/s11164-014-1888-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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21
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Bonnet S. Shifting the Light Activation of Metallodrugs to the Red and Near-Infrared Region in Anticancer Phototherapy. COMMENT INORG CHEM 2014. [DOI: 10.1080/02603594.2014.979286] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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22
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Freyer B, Zamponi F, Juvé V, Stingl J, Woerner M, Elsaesser T, Chergui M. Ultrafast inter-ionic charge transfer of transition-metal complexes mapped by femtosecond X-ray powder diffraction. J Chem Phys 2013; 138:144504. [DOI: 10.1063/1.4800223] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Myahkostupov M, Castellano FN. Synthesis and characterization of tris(heteroleptic) Ru(II) complexes bearing styryl subunits. Inorg Chem 2011; 50:9714-27. [PMID: 21875049 DOI: 10.1021/ic201618e] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We have developed and optimized a well-controlled and refined methodology for the synthesis of substituted π-conjugated 4,4'-styryl-2,2'-bipyridine ligands and also adapted the tris(heteroleptic) synthetic approach developed by Mann and co-workers to produce two new representative Ru(II)-based complexes bearing the metal oxide surface-anchoring precursor 4,4'-bis[E-(p-methylcarboxy-styryl)]-2,2'-bipyridine. The two targeted Ru(II) complexes, (4,4'-dimethyl-2,2'-bipyridine)(4,4'-di-tert-butyl-2,2'-bipyridine)(4,4'-bis[E-(p-methylcarboxy-styryl)]-2,2'-bipyridine) ruthenium(II) hexafluorophosphate, [Ru(dmbpy)(dtbbpy)(p-COOMe-styryl-bpy)](PF(6))(2) (1) and (4,4'-dimethyl-2,2'-bipyridine)(4,4'-dinonyl-2,2'-bipyridine)(4,4'-bis[E-(p-methylcarboxy-styryl)]-2,2'-bipyridine) ruthenium(II) hexafluorophosphate, [Ru(dmbpy)(dnbpy)(p-COOMe-styryl-bpy)](PF(6))(2) (2) were obtained as analytically pure compounds in high overall yields (>50% after 5 steps) and were isolated without significant purification effort. In these tris(heteroleptic) molecules, NMR-based structural characterization became nontrivial as the coordinated ligand sets each sense profoundly distinct magnetic environments greatly complicating traditional 1D spectra. However, rational two-dimensional approaches based on both homo- and heteronuclear couplings were readily applied to these structures producing quite definitive analytical characterization and the associated methodology is described in detail. Preliminary photoluminescence and photochemical characterization of 1 and 2 strongly suggests that both molecules are energetically and kinetically suitable to serve as sensitizers in energy-relevant applications.
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Affiliation(s)
- Mykhaylo Myahkostupov
- Center for Photochemical Sciences and Department of Chemistry, Bowling Green State University, Bowling Green, Ohio 43403, United States
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24
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Edkins RM, Bettington SL, Goeta AE, Beeby A. Two-photon spectroscopy of cyclometalated iridium complexes. Dalton Trans 2011; 40:12765-70. [DOI: 10.1039/c1dt11164g] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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25
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Singh-Rachford TN, Castellano FN. Photon upconversion based on sensitized triplet–triplet annihilation. Coord Chem Rev 2010. [DOI: 10.1016/j.ccr.2010.01.003] [Citation(s) in RCA: 844] [Impact Index Per Article: 60.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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26
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Shen R, Shen X, Zhang Z, Li Y, Liu S, Liu H. Multifunctional conjugates to prepare nucleolar-targeting CdS quantum dots. J Am Chem Soc 2010; 132:8627-34. [PMID: 20518506 DOI: 10.1021/ja1002668] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We used a click reaction to synthesize a bidentate 1,2,3-triazole-based ligand, TA, for use in the preparation of aqueous CdS quantum dots (QDs). TA-conjugated CdS QDs exhibited two fluorescence emission peaks, one at 540 nm arising from CdS nanocrystals and the other at approximately 670 nm arising from TA-CdS QD complexes formed via surface coordination. Coordination between TA and CdS was verified by using X-ray photoelectron (N 1s) spectra as well as Raman and NMR spectra of TA-capped QDs. Electrochemical analysis revealed that the 1,2,3-triazole moities in TA form complexes with the Cd(II) ions. The aqueous QDs protected by TA were very stable at different ionic strengths and over a broad pH range, according to fluorescence analysis. The ethidium bromide exclusion assay demonstrated that the bidentate TA ligand interacts strongly with DNA. Fluorescent micrographs and TEM images of cancer cells stained with TA-capped QDs clearly showed that the TA ligand targeted CdS QDs to the nucleoli of cells. In contrast, thioglycolic acid-capped CdS QDs just stained the cell membranes and could not pass the cell membranes to reach the cell nucleus.
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Affiliation(s)
- Ran Shen
- CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
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27
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Singh-Rachford TN, Castellano FN. Nonlinear Photochemistry Squared: Quartic Light Power Dependence Realized in Photon Upconversion. J Phys Chem A 2009; 113:9266-9. [DOI: 10.1021/jp906782g] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Tanya N. Singh-Rachford
- Department of Chemistry and Center for Photochemical Sciences, Bowling Green State University, Bowling Green, Ohio 43403
| | - Felix N. Castellano
- Department of Chemistry and Center for Photochemical Sciences, Bowling Green State University, Bowling Green, Ohio 43403
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Xiao H, Tao X, Wang Y, Qian S, Shi G, Li H. Dipicolinate as acceptor in D–π–A chromophores: synthesis, characterization and fluorescence following single- and two-photon excitation. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2008.09.073] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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29
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3MLCT excited states in Ru(II) complexes: Reactivity and related two-photon absorption applications in the near-infrared spectral range. CR CHIM 2008. [DOI: 10.1016/j.crci.2007.11.012] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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30
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Finikova OS, Troxler T, Senes A, DeGrado WF, Hochstrasser RM, Vinogradov SA. Energy and electron transfer in enhanced two-photon-absorbing systems with triplet cores. J Phys Chem A 2007; 111:6977-90. [PMID: 17608457 PMCID: PMC2441487 DOI: 10.1021/jp071586f] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Enhanced two-photon-absorbing (2PA) systems with triplet cores are currently under scrutiny for several biomedical applications, including photodynamic therapy (PDT) and two-photon microscopy of oxygen. The performance of so far developed molecules, however, is substantially below expected. In this study we take a detailed look at the processes occurring in these systems and propose ways to improve their performance. We focus on the interchromophore distance tuning as a means for optimization of two-photon sensors for oxygen. In these constructs, energy transfer from several 2PA chromophores is used to enhance the effective 2PA cross section of phosphorescent metalloporphyrins. Previous studies have indicated that intramolecular electron transfer (ET) can act as an effective quencher of phosphorescence, decreasing the overall sensor efficiency. We studied the interplay between 2PA, energy transfer, electron transfer, and phosphorescence emission using Rhodamine B-Pt tetrabenzoporphyrin (RhB-PtTBP) adducts as model compounds. 2PA cross sections (sigma2) of tetrabenzoporphyrins (TBPs) are in the range of several tens of GM units (near 800 nm), making TBPs superior 2PA chromophores compared to regular porphyrins (sigma2 values typically 1-2 GM). Relatively large 2PA cross sections of rhodamines (about 200 GM in 800-850 nm range) and their high photostabilities make them good candidates as 2PA antennae. Fluorescence of Rhodamine B (lambda(fl) = 590 nm, phi(fl) = 0.5 in EtOH) overlaps with the Q-band of phosphorescent PtTBP (lambda(abs) = 615 nm, epsilon = 98 000 M(-1) cm(-1), phi(p) approximately 0.1), suggesting that a significant amplification of the 2PA-induced phosphorescence via fluorescence resonance energy transfer (FRET) might occur. However, most of the excitation energy in RhB-PtTBP assemblies is consumed in several intramolecular ET processes. By installing rigid nonconducting decaproline spacers (Pro10) between RhB and PtTBP, the intramolecular ETs were suppressed, while the chromophores were kept within the Förster r0 distance in order to maintain high FRET efficiency. The resulting assemblies exhibit linear amplification of their 2PA-induced phosphorescence upon increase in the number of 2PA antenna chromophores and show high oxygen sensitivity. We also have found that PtTBPs possess unexpectedly strong forbidden S0 --> T1 bands (lambda(max) = 762 nm, epsilon = 120 M-1 cm-1). The latter may overlap with the laser spectrum and lead to unwanted linear excitation.
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Affiliation(s)
- Olga S Finikova
- Departments of Biochemistry and Biophysics and Chemistry, University of Pennsylvania, Philadelphia, PA 19104, USA
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31
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Montgomery MA, Damrauer NH. Elucidation of Control Mechanisms Discovered during Adaptive Manipulation of [Ru(dpb)3](PF6)2 Emission in the Solution Phase. J Phys Chem A 2007; 111:1426-33. [PMID: 17269753 DOI: 10.1021/jp065962s] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
To design methodologies that will allow researchers to directly correlate the results of adaptive control experiments with physiochemical control pathways in arbitrary complex molecular systems it is imperative that prototype systems are developed and that exigent control pathways are understood. We have been interested in the results of adaptive control experiments in our laboratory involving the maximization of a ratio of two experimental observables: (1) the thermalized emission from the solution-phase coordination complex [Ru(dpb)3](PF6)2 and (2) the second harmonic signal (a purely intensity-dependent phenomenon) of the shaped laser fields. Using a rational pulse shaping strategy, we have made a measurement of the ratio spectrum (in essence the two-photon absorption cross section) for the molecule [Ru(dpb)3](PF6)2 in a room temperature solution of acetonitrile. This spectrum is highly varied across the accessible two-photon power spectrum of our broad-band laser pulses and demonstrates the existence of a control pathway wherein a shaped laser field can manipulate excited-state population (with respect to SHG) by conforming to the second-order spectral response of the molecule in solution. We show that our adaptive control algorithm is capable of taking advantage of these control pathways using simulated adaptive control experiments. Finally, we measure second-harmonic spectra of shaped laser fields discovered during an adaptive control experiment and show that these agree with simulation. These results suggest that our adaptive control experiment can be understood in the context of the elucidated spectral control pathway.
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Affiliation(s)
- Matthew A Montgomery
- Department of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado 80309, USA
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Girardot C, Lemercier G, Mulatier JC, Chauvin J, Baldeck PL, Andraud C. Novel ruthenium(ii) and zinc(ii) complexes for two-photon absorption related applications. Dalton Trans 2007:3421-6. [PMID: 17664979 DOI: 10.1039/b706715a] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two new fluorene derivatized 1,10-phenanthroline ligands and related tris-chelate Ru(II) or Zn(II) coordination complexes have been synthesised. The linear and nonlinear (two-photon induced fluorescence) photophysical measurements have contributed to highlight the possibility to tune the absorption spectral range and excited lifetime, depending on ligand substitution and nature of the metal. More significantly, the observation of two-photon absorption (TPA) associated with long-lived metal-to-ligand charge-transfer (MLCT) excited states in the Ru(II)-based chromophores, opens a wide range of applications in the near infrared.
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Affiliation(s)
- C Girardot
- Laboratoire de Chimie, UMR no 5182, CNRS/ENS-Lyon, 46 Allée d'Italie, 69364, Lyon, cedex 07, France
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Yamada K, Kimura Y, Suzuki S, Sone J, Chen J, Urabe S. Multiphoton-sensitized Polymerization of Pyrrole. CHEM LETT 2006. [DOI: 10.1246/cl.2006.908] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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34
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Lukomska J, Gryczynski I, Malicka J, Makowiec S, Lakowicz JR, Gryczynski Z. One- and two-photon induced fluorescence of Pacific Blue-labeled human serum albumin deposited on different core size silver colloids. Biopolymers 2006; 81:249-55. [PMID: 16273526 PMCID: PMC6830069 DOI: 10.1002/bip.20407] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
We studied one- and two-photon induced fluorescence of Pacific Blue (PB)-labeled human serum albumin (HSA) in the presence of different size silver colloids. The PB fluorescence emission intensity was observed with small (30-40 nm) and large (about 120 nm) colloids and compared with PB emission in absence of colloids. For the system with a small core size colloids we did not detect any fluorescence enhancement with one-photon excitation and the enhancement observed with two-photon excitation was about 2.5-fold. In contrast, for large silver colloids we observed about a 2-fold increase in PB fluorescence brightness for one-photon excitation, and the enhancement with two-photon excitation excided 13-folds. Much stronger increases in brightness observed with two-photon excitation, compared to one-photon excitation, indicate a dominant role of enhanced local field in fluorescence enhancement on silver colloids in solutions.
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Affiliation(s)
- Joanna Lukomska
- Center for Fluorescence Spectroscopy, University of Maryland at Baltimore, 725 West Lombard Street, Baltimore, MD 21201
| | - Ignacy Gryczynski
- Department of Cell Biology and Genetics, Department of Molecular Biology and Immunology, University of North Texas, Health Science Center, 3500 Camp Bowie Blvd., Fort Worth, TX 76107
| | - Joanna Malicka
- Center for Fluorescence Spectroscopy, University of Maryland at Baltimore, 725 West Lombard Street, Baltimore, MD 21201
| | - Slawomir Makowiec
- Center for Fluorescence Spectroscopy, University of Maryland at Baltimore, 725 West Lombard Street, Baltimore, MD 21201
| | - Joseph R. Lakowicz
- Center for Fluorescence Spectroscopy, University of Maryland at Baltimore, 725 West Lombard Street, Baltimore, MD 21201
| | - Zygmunt Gryczynski
- Department of Cell Biology and Genetics, Department of Molecular Biology and Immunology, University of North Texas, Health Science Center, 3500 Camp Bowie Blvd., Fort Worth, TX 76107
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Gryczynski I, Malicka J, Lakowicz JR, Goldys EM, Calander N, Gryczynski Z. Directional two-photon induced surface plasmon-coupled emission. THIN SOLID FILMS 2005; 491:173-176. [PMID: 33828343 PMCID: PMC8022891 DOI: 10.1016/j.tsf.2005.06.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
We measured a directional surface plasmon-coupled emission (SPCE) induced by a two-photon absorption. A 60 nm thick layer of poly(vinyl alcohol) film doped with rhodamine 123 was deposited on a silvered (50 nm Ag) glass slide, which was attached to a hemicylindrical glass prism. The 820 nm excitation from a femtosecond Ti:Sapphire laser was used either in reverse Kretschmann or Kretschmann configuration. The angular distribution of two-photon induced SPCE does not depend on the used configuration. The two-photon induced SPCE can be applied to improve immunoassays and deoxyribonucleic acid detection.
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Affiliation(s)
- Ignacy Gryczynski
- Center for Fluorescence Spectroscopy, University of Maryland at Baltimore, Department of Biochemistry and Molecular Biology, 725 West Lombard Street, Baltimore, MD 21201, USA
| | - Joanna Malicka
- Center for Fluorescence Spectroscopy, University of Maryland at Baltimore, Department of Biochemistry and Molecular Biology, 725 West Lombard Street, Baltimore, MD 21201, USA
| | - Joseph R. Lakowicz
- Center for Fluorescence Spectroscopy, University of Maryland at Baltimore, Department of Biochemistry and Molecular Biology, 725 West Lombard Street, Baltimore, MD 21201, USA
| | - Ewa M. Goldys
- Optical Microcharacterisation Facility, Division of Information and Communication Sciences, Macquarie University, Sydney, NSW 2109, Australia
| | - Nils Calander
- Department of Physics, Chalmers University of Technology, Göteborg University, S-412 96 Göteborg, Sweden
| | - Zygmunt Gryczynski
- Center for Fluorescence Spectroscopy, University of Maryland at Baltimore, Department of Biochemistry and Molecular Biology, 725 West Lombard Street, Baltimore, MD 21201, USA
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Lukomska J, Gryczynski I, Malicka J, Makowiec S, Lakowicz JR, Gryczynski Z. Two-photon induced fluorescence of Cy5-DNA in buffer solution and on silver island films. Biochem Biophys Res Commun 2005; 328:78-84. [PMID: 15670753 PMCID: PMC6844251 DOI: 10.1016/j.bbrc.2004.12.148] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2004] [Indexed: 10/26/2022]
Abstract
We report the observation of a strong two-photon induced fluorescence emission of Cy5-DNA within the tunable range of a Ti:Sapphire laser. The estimated two-photon cross-section for Cy5-DNA of 400GM is about 3.5-fold higher than it was reported for rhodamine B. The fundamental anisotropies of Cy5-DNA are close to the theoretical limits of 2/5 and 4/7 for one- and two-photon excitation, respectively. We also observed an enhanced two-photon induced fluorescence (TPIF) of Cy5-DNA deposited on silver island films (SIFs). In the presence of SIFs, the TPIF is about 100-fold brighter. The brightness increase of Cy5-DNA TPIF near SIFs is mostly due to enhanced local field.
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Affiliation(s)
- Joanna Lukomska
- Center for Fluorescence Spectroscopy, Department of Biochemistry and Molecular Biology, University of Maryland at Baltimore, 725 West Lombard Street, Baltimore, MD 21201, USA.
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Brixner T, Damrauer NH, Kiefer B, Gerber G. Liquid-phase adaptive femtosecond quantum control: Removing intrinsic intensity dependencies. J Chem Phys 2003. [DOI: 10.1063/1.1538239] [Citation(s) in RCA: 68] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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38
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Thompson DW, Wishart JF, Brunschwig BS, Sutin N. Efficient Generation of the Ligand Field Excited State of Tris-(2,2‘-bipyridine)-ruthenium(II) through Sequential Two-Photon Capture by [Ru(bpy)3]2+ or Electron Capture by [Ru(bpy)3]3+. J Phys Chem A 2001. [DOI: 10.1021/jp011854o] [Citation(s) in RCA: 75] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- David W. Thompson
- Departments of Chemistry, Brookhaven National Laboratory, Upton, New York 11973-5000, and Rutgers University, Piscataway, New Jersey 08854-8087
| | - James F. Wishart
- Departments of Chemistry, Brookhaven National Laboratory, Upton, New York 11973-5000, and Rutgers University, Piscataway, New Jersey 08854-8087
| | - Bruce S. Brunschwig
- Departments of Chemistry, Brookhaven National Laboratory, Upton, New York 11973-5000, and Rutgers University, Piscataway, New Jersey 08854-8087
| | - Norman Sutin
- Departments of Chemistry, Brookhaven National Laboratory, Upton, New York 11973-5000, and Rutgers University, Piscataway, New Jersey 08854-8087
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