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Keil E, Lokstein H, Cogdell R, Hauer J, Zigmantas D, Thyrhaug E. Light harvesting in purple bacteria does not rely on resonance fine-tuning in peripheral antenna complexes. PHOTOSYNTHESIS RESEARCH 2024; 161:191-201. [PMID: 38907135 PMCID: PMC11324704 DOI: 10.1007/s11120-024-01107-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Accepted: 06/10/2024] [Indexed: 06/23/2024]
Abstract
The ring-like peripheral light-harvesting complex 2 (LH2) expressed by many phototrophic purple bacteria is a popular model system in biological light-harvesting research due to its robustness, small size, and known crystal structure. Furthermore, the availability of structural variants with distinct electronic structures and optical properties has made this group of light harvesters an attractive testing ground for studies of structure-function relationships in biological systems. LH2 is one of several pigment-protein complexes for which a link between functionality and effects such as excitonic coherence and vibronic coupling has been proposed. While a direct connection has not yet been demonstrated, many such interactions are highly sensitive to resonance conditions, and a dependence of intra-complex dynamics on detailed electronic structure might be expected. To gauge the sensitivity of energy-level structure and relaxation dynamics to naturally occurring structural changes, we compare the photo-induced dynamics in two structurally distinct LH2 variants. Using polarization-controlled 2D electronic spectroscopy at cryogenic temperatures, we directly access information on dynamic and static disorder in the complexes. The simultaneous optimal spectral and temporal resolution of these experiments further allows us to characterize the ultrafast energy relaxation, including exciton transport within the complexes. Despite the variations in PPC molecular structure manifesting as clear differences in electronic structure and disorder, the energy-transport and-relaxation dynamics remain remarkably similar. This indicates that the light-harvesting functionality of purple bacteria within a single LH2 complex is highly robust to structural perturbations and likely does not rely on finely tuned electronic- or electron-vibrational resonance conditions.
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Affiliation(s)
- Erika Keil
- TUM School of Natural Sciences, Department of Chemistry, Technical University of Munich, Lichtenbergstrasse 4, 85748, Garching, Germany
| | - Heiko Lokstein
- Department of Chemical Physics and Optics, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 3, 121 16, Prague, Czech Republic
| | - Richard Cogdell
- Institute of Molecular, Cell and Systems Biology, University of Glasgow, Room 402 Davidson Building, Glasgow, G12 8QQ, Scotland
| | - Jürgen Hauer
- TUM School of Natural Sciences, Department of Chemistry and Catalysis Research Center, Technical University of Munich, Lichtenbergstrasse 4, 85748, Garching, Germany
| | - Donatas Zigmantas
- Chemical Physics, Lund University, Naturvetarvägen 16, 22362, Lund, Sweden
| | - Erling Thyrhaug
- TUM School of Natural Sciences, Department of Chemistry and Catalysis Research Center, Technical University of Munich, Lichtenbergstrasse 4, 85748, Garching, Germany.
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2
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Gotfredsen H, Deng JR, Van Raden JM, Righetto M, Hergenhahn J, Clarke M, Bellamy-Carter A, Hart J, O'Shea J, Claridge TDW, Duarte F, Saywell A, Herz LM, Anderson HL. Bending a photonic wire into a ring. Nat Chem 2022; 14:1436-1442. [PMID: 36253501 DOI: 10.1038/s41557-022-01032-w] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 07/27/2022] [Indexed: 01/04/2023]
Abstract
Natural light-harvesting systems absorb sunlight and transfer its energy to the reaction centre, where it is used for photosynthesis. Synthetic chromophore arrays provide useful models for understanding energy migration in these systems. Research has focused on mimicking rings of chlorophyll molecules found in purple bacteria, known as 'light-harvesting system 2'. Linear meso-meso linked porphyrin chains mediate rapid energy migration, but until now it has not been possible to bend them into rings. Here we show that oligo-pyridyl templates can be used to bend these rod-like photonic wires to create covalent nanorings that consist of 24 porphyrin units and a single butadiyne link. Their elliptical conformations have been probed by scanning tunnelling microscopy. This system exhibits two excited state energy transfer processes: one from a bound template to the peripheral porphyrins and one, in the template-free ring, from the exciton-coupled porphyrin array to the π-conjugated butadiyne-linked porphyrin dimer segment.
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Affiliation(s)
- Henrik Gotfredsen
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Oxford, UK
| | - Jie-Ren Deng
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Oxford, UK
| | - Jeff M Van Raden
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Oxford, UK
| | - Marcello Righetto
- Department of Physics, University of Oxford, Clarendon Laboratory, Oxford, UK
| | - Janko Hergenhahn
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Oxford, UK
| | - Michael Clarke
- School of Physics & Astronomy, University of Nottingham, Nottingham, UK
| | | | - Jack Hart
- School of Physics & Astronomy, University of Nottingham, Nottingham, UK
| | - James O'Shea
- School of Physics & Astronomy, University of Nottingham, Nottingham, UK
| | - Timothy D W Claridge
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Oxford, UK
| | - Fernanda Duarte
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Oxford, UK
| | - Alex Saywell
- School of Physics & Astronomy, University of Nottingham, Nottingham, UK.
| | - Laura M Herz
- Department of Physics, University of Oxford, Clarendon Laboratory, Oxford, UK.
| | - Harry L Anderson
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Oxford, UK.
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3
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Hexabenzocoronene functionalized with antiaromatic S- and Se-core-modified porphyrins (isophlorins): comparison with the dyad with regular porphyrin. PURE APPL CHEM 2022. [DOI: 10.1515/pac-2021-1105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The important and perspective molecular building blocks composed of hexaphenylbenzenes (HPBs) or their oxidized derivatives, hexa-peri-hexabenzocoronenes (HBCs), and metalloporphyrins have recently received significant attention of the researchers. In this study, motivated by recent findings, we have addressed the modifications of structures and properties of HBC-porphyrin compounds by using instead of aromatic porphyrins antiaromatic 20π isophlorin derivatives of thiophene or selenophene. We have reported the first comparative computational investigation of the following systems: (i) HBC with one non-metallated aromatic porphyrin, P(N4H2), unit, HBC-P(N4H2), (ii) HBC with one S-core-modified antiaromatic porphyrin (S-isophlorin), PS4, unit, HBC-PS4, and (iii) HBC with one Se-core-modified antiaromatic porphyrin (Se-isophlorin), PSe4, unit, HBC-PSe4. The study has been done employing the B3LYP/6-31G* approach (in the gas phase and in the implicit solvents, benzene and dichloromethane), and comparison with the B3LYP/6-31G** and B3LYP/6-311G* approaches was performed, where relevant. The effects of the core-modified antiaromatic isophlorins on the structures, electronic, and other properties, potentially including reactivity, of the whole building block HBC-isophlorin have been shown to be quite pronounced and to be noticeably stronger than the effects of the original aromatic non-metallated porphyrin. Thus, we have demonstrated theoretically that the complete porphyrin core-modification with other elements, this time with S and Se leading to the formation of the antiaromatic isophlorins, should be considered as a promising way for modifying and tuning structures, electronic properties and reactivity of the hexabenzocoronene-porphyrin(s) building blocks.
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4
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Nishiuchi T, Sotome H, Shimizu K, Miyasaka H, Kubo T. 1,2,3-Tri(9-anthryl)benzene: Photophysical Properties and Solid State Intermolecular Interactions of Radially Arranged, Congested Aromatic π-Planes. Chemistry 2021; 28:e202104245. [PMID: 34910331 DOI: 10.1002/chem.202104245] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Indexed: 11/12/2022]
Abstract
We report the Negishi coupling based synthesis of 1,2,3-tri(9-anthryl)benzene derivatives, containing three radially arranged anthracenes in a π-cluster. In the crystalline state of the unsubstituted derivative, intermolecular π-π and CH-π interactions between the anthracene units drive the formation of a two-dimensional packing structure. Owing to though-space π-conjugation between anthracene units, the substances have unique electronic properties. The excited state dynamic behavior occurring between the three radially arranged anthracene moieties, such as exciton localization/delocalization, was elucidated by means of transient absorption measurements and quantum chemical calculations. Interestingly, even though the three anthracenes are closely oriented with a ca. 3.0 Å distances between their C-9 positions, exciton localization on two anthracene units is energetically favorable because of the flexible nature of the radially arranged aromatic rings.
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Affiliation(s)
- Tomohiko Nishiuchi
- Osaka University, Department of Chemistry, 1-1 Machikaneyama, Toyonaka, 560-0043, Osaka, JAPAN
| | - Hikaru Sotome
- Osaka University: Osaka Daigaku, Graduate School of Engineering Science, 1-3 Machikaneyama, 560-8531, Toyonaka, JAPAN
| | - Kazuto Shimizu
- Osaka University School of Science Graduate School of Science: Osaka Daigaku Daigakuin Rigaku Kenkyuka Rigakubu, Chemistry, 1-1 Machikaneyama, 560-0043, Toyonaka, JAPAN
| | - Hiroshi Miyasaka
- Osaka University - Toyonaka Campus: Osaka Daigaku - Toyonaka Campus, Graduate School of Engineering Science, 560-8531, Toyonaka, JAPAN
| | - Takashi Kubo
- Osaka University School of Science Graduate School of Science: Osaka Daigaku Daigakuin Rigaku Kenkyuka Rigakubu, Chemistry, 1-1 Machikaneyama, 560-0043, Toyonaka, JAPAN
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5
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Sharma VK, Mahammed A, Mizrahi A, Morales M, Fridman N, Gray HB, Gross Z. Dimeric Corrole Analogs of Chlorophyll Special Pairs. J Am Chem Soc 2021; 143:9450-9460. [PMID: 34014656 PMCID: PMC8249354 DOI: 10.1021/jacs.1c02362] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Chlorophyll special pairs in photosynthetic reaction centers function as both exciton acceptors and primary electron donors. Although the macrocyclic natural pigments contain Mg(II), the central metal in most synthetic analogs is Zn(II). Here we report that insertion of either Al(III) or Ga(III) into an imidazole-substituted corrole affords an exceptionally robust photoactive dimer. Notably, attractive electronic interactions between dimer subunits are relatively strong, as documented by signature changes in NMR and electronic absorption spectra, as well as by cyclic voltammetry, where two well-separated reversible redox couples were observed. EPR spectra of one-electron oxidized dimers closely mimic those of native special pairs, and strong through-space interactions between corrole subunits inferred from spectroscopic and electrochemical data are further supported by crystal structure analyses (3 Å interplanar distances, 5 Å lateral shifts, and 6 Å metal to metal distances).
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Affiliation(s)
- Vinay K. Sharma
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Haifa 32000, Israel
| | - Atif Mahammed
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Haifa 32000, Israel
| | - Amir Mizrahi
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Haifa 32000, Israel
- Department of Chemistry, Nuclear Research Center Negev, Beer Sheva, 9001, Israel
| | - Maryann Morales
- Beckman Institute, California Institute of Technology, Pasadena, California 91125, United States
| | - Natalia Fridman
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Haifa 32000, Israel
| | - Harry B. Gray
- Beckman Institute, California Institute of Technology, Pasadena, California 91125, United States
| | - Zeev Gross
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Haifa 32000, Israel
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6
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Asano MS, Morita T, Miwata T, Nomura K. Observation of Intramolecular Interaction in Fluorescent Star-Shaped Polymers: Evidence for Energy Hopping between Branch Chains. J Phys Chem B 2020; 124:11510-11518. [PMID: 33283508 DOI: 10.1021/acs.jpcb.0c09613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Time-resolved fluorescence anisotropy measurements were performed on three-branched star-shaped polymers, based on precisely synthesized poly(9,9-di-n-octyl-fluorene vinylene)s containing C6F5 end groups. The star-shaped polymers showed identical fluorescence spectra, fluorescence lifetimes, and quantum yields to those of the reference single-chain oligomer. However, a rapid fluorescence anisotropy decay was observed in two kinds of star-shaped polymers, while such decay was not seen in the corresponding single-chain oligomer. On the basis of the analysis using an incoherent hopping model, the observed rapid anisotropy decay is attributable to energy hopping processes between branches within a single polymer species, and its rate was deduced to be ca.100 ps depending upon the core part.
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Affiliation(s)
- Motoko S Asano
- Division of Molecular Science, Graduate School of Science and Technology, Gunma University, Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - Takatsugu Morita
- Division of Molecular Science, Graduate School of Science and Technology, Gunma University, Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - Tomohiro Miwata
- Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University, Minami-Ohsawa, Hachi-Ohji, Tokyo 192-0397, Japan
| | - Kotohiro Nomura
- Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University, Minami-Ohsawa, Hachi-Ohji, Tokyo 192-0397, Japan
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7
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Nisa K, Khatri V, Kumar S, Arora S, Ahmad S, Dandia A, Thirumal M, Kashyap HK, Chauhan SMS. Synthesis and Redox Properties of Superbenzene Porphyrin Conjugates. Inorg Chem 2020; 59:16168-16177. [PMID: 33103424 DOI: 10.1021/acs.inorgchem.0c01682] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Superbenzene porphyrin conjugates find wide range of applications from nonlinear optical materials to semiconductors. Herein, we report the synthesis and characterization of 5,15-bis(3,5-di-tert-butylphenyl)-10,20-bis(pentaphenylphenyl)phenylporphyrin and its Zinc-metallated complex. Oxidative planarization of 5,15-bis(3,5-di-tert-butylphenyl)-10,20-bis(pentaphenylphenyl)phenylporphyrin and its metallated complex was carried out by using NOBF4 as an oxidizing agent. The formation of superbenzene porphyrin conjugates validates its Scholl type reactions. The laboratory-synthesized porphyrin conjugates were characterized experimentally using spectroscopic techniques such as 1H NMR, 13C NMR, electron spin resonance, and ultraviolet-visible spectroscopy for structural conformation. In addition, density functional theory calculations were carried out to validate the experimental results. The theoretical and experimental results show that the 4-(pentaphenylphenyl)phenyl ligand increases the stability, optical properties, and rate of planarization of synthesized porphyrins. The conjugates exhibited intense and distant electronic communication between two hexabenzocoronene sites, taking advantage of porphyrin as a π-spacer. The π-radical cation has also been found to be an intermediate in oxidative C-C bond formation. NICS calculations support such a conclusion.
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Affiliation(s)
- Kharu Nisa
- Department of Chemistry, University of Delhi, New Delhi 110007, India
| | - Vikas Khatri
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Sharvan Kumar
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Smriti Arora
- Department of Chemistry, University of Delhi, New Delhi 110007, India
| | - Sohail Ahmad
- Department of Chemistry, University of Delhi, New Delhi 110007, India
| | - Anshu Dandia
- Department of Chemistry, University of Delhi, New Delhi 110007, India
| | - M Thirumal
- Department of Chemistry, University of Delhi, New Delhi 110007, India
| | - Hemant K Kashyap
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Shive M S Chauhan
- Department of Chemistry, University of Delhi, New Delhi 110007, India
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8
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Hexabenzocoronene functionalized with porphyrin and P-core-modified porphyrin: A comparative computational study. COMPUT THEOR CHEM 2020. [DOI: 10.1016/j.comptc.2020.112973] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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9
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Maeda C, Toyama S, Okada N, Takaishi K, Kang S, Kim D, Ema T. Tetrameric and Hexameric Porphyrin Nanorings: Template Synthesis and Photophysical Properties. J Am Chem Soc 2020; 142:15661-15666. [PMID: 32847356 DOI: 10.1021/jacs.0c07707] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Hexameric and tetrameric porphyrin nanorings, Z6·T6 and Z4·T4, were synthesized in 53% and 14% yields, respectively, by the Sonogashira-type self-oligomerization of porphyrin monomer 1 using hexadentate template T6 and tetrapyridylporphyrin template T4. Template-free nanorings Z6 and Z4 were also prepared. The femtosecond transient absorption measurements revealed fast excitation energy hopping (EEH) along these nanorings with hopping rates of 2-5 ps. Treatment of Z6 with chiral template CT6 gave Z6·CT6 showing circular dichroism (CD) and circularly polarized luminescence (CPL) in the absorption and fluorescence regions of Z6, respectively, which indicates chirality transfer from CT6 to Z6.
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Affiliation(s)
- Chihiro Maeda
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, Tsushima, Okayama 700-8530, Japan
| | - Shoki Toyama
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, Tsushima, Okayama 700-8530, Japan
| | - Naoki Okada
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, Tsushima, Okayama 700-8530, Japan
| | - Kazuto Takaishi
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, Tsushima, Okayama 700-8530, Japan
| | - Seongsoo Kang
- Spectroscopy Laboratory for Functional π-Electronic Systems and Department of Chemistry, Yonsei University, Seoul 120-749, Korea
| | - Dongho Kim
- Spectroscopy Laboratory for Functional π-Electronic Systems and Department of Chemistry, Yonsei University, Seoul 120-749, Korea
| | - Tadashi Ema
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, Tsushima, Okayama 700-8530, Japan
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10
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Seintis K, Kalis IK, Klikar M, Bureš F, Fakis M. Excitation/detection energy controlled anisotropy dynamics in asymmetrically cyano substituted tri-podal molecules. Phys Chem Chem Phys 2020; 22:16681-16690. [PMID: 32658218 DOI: 10.1039/d0cp01726d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In the present work, the photophysical properties of two series of asymmetrical tri-podal molecules are studied, in order to determine the dependence of energy localization/delocalization phenomena on excitation and detection wavelength, by means of steady state, femtosecond time-resolved fluorescence and anisotropy spectroscopy. The molecules bear triphenylamine as an electron donating core and an acetylenic or olefinic π-conjugated bridge. At the periphery, they are substituted by no, one, two or three -CN groups used as electron acceptors. Thus, the compounds with only one or two -CN groups are asymmetrically substituted. As a comparison, the photophysics of their dipolar and quadrupolar analogues is also presented. The steady state absorption spectra of the asymmetrical tri-podal compounds exhibit a broadening and a low energy shoulder due to the splitting of the excited states. The fluorescence spectra are more red-shifted in the tri-podal molecules with a single -CN group, providing the first evidence of its mostly dipolar nature. Time-resolved anisotropy measurements by using different excitation and detection wavelengths provide clear evidence that the asymmetrical tri-podal molecules with one or two -CN groups behave like octupolar molecules upon high-energy excitation (the initial anisotropy is found 0.1-0.15), while upon low-energy excitation they reveal a behavior expected for linear dipolar or V-shaped quadrupolar molecules (the initial anisotropy is very close to 0.4 and 0.17, respectively). The symmetrical tri-podal compounds with no or three cyano groups, exhibit an anisotropy depolarization time of 2.5 ps attributed to energy hopping. The amplitude of this energy hopping component is wavelength dependent and increases as the excitation is shifted towards the long wavelength edge.
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Affiliation(s)
- K Seintis
- Department of Physics, University of Patras, GR-26504, Patras, Greece.
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Cacioppo M, Scharl T, Đorđević L, Cadranel A, Arcudi F, Guldi DM, Prato M. Symmetry-Breaking Charge-Transfer Chromophore Interactions Supported by Carbon Nanodots. Angew Chem Int Ed Engl 2020; 59:12779-12784. [PMID: 32282973 PMCID: PMC7496469 DOI: 10.1002/anie.202004638] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Indexed: 11/10/2022]
Abstract
Carbon dots (CDs) and their derivatives are useful platforms for studying electron-donor/acceptor interactions and dynamics therein. Herein, we couple amorphous CDs with phthalocyanines (Pcs) that act as electron donors with a large extended π-surface and intense absorption across the visible range of the solar spectrum. Investigations of the intercomponent interactions by means of steady-state and pump-probe transient absorption spectroscopy reveal symmetry-breaking charge transfer/separation and recombination dynamics within pairs of phthalocyanines. The CDs facilitate the electronic interactions between the phthalocyanines. Thus, our findings suggest that CDs could be used to support electronic couplings in multichromophoric systems and further increase their applicability in organic electronics, photonics, and artificial photosynthesis.
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Affiliation(s)
- Michele Cacioppo
- Department of Chemical and Pharmaceutical SciencesUniversity of Trieste, and INSTM, unit of TriesteVia Licio Giorgieri 134127TriesteItaly
| | - Tobias Scharl
- Department of Chemistry and Pharmacy, Interdisciplinary Center for Molecular MaterialsFriedrich-Alexander Universität Erlangen-NürnbergEgerlandstrasse 391058ErlangenGermany
| | - Luka Đorđević
- Department of Chemical and Pharmaceutical SciencesUniversity of Trieste, and INSTM, unit of TriesteVia Licio Giorgieri 134127TriesteItaly
- Present address: Department of ChemistryNorthwestern University2145 Sheridan RoadEvanstonIL60208USA
- Present address: Simpson Querrey InstituteNorthwestern University303 E. SuperiorChicagoIL60611USA
| | - Alejandro Cadranel
- Department of Chemistry and Pharmacy, Interdisciplinary Center for Molecular MaterialsFriedrich-Alexander Universität Erlangen-NürnbergEgerlandstrasse 391058ErlangenGermany
- Universidad de Buenos AiresFacultad de Ciencias Exactas y NaturalesDepartamento de Química Inorgánica, Analítica y Química FísicaPabellón 2, Ciudad UniversitariaC1428EHABuenos AiresArgentina
- CONICET—Universidad de Buenos AiresInstituto de Química-Física de Materiales, Medio Ambiente y Energía (INQUIMAE)Pabellón 2, Ciudad UniversitariaC1428EHA BuenosAiresArgentina
| | - Francesca Arcudi
- Department of Chemical and Pharmaceutical SciencesUniversity of Trieste, and INSTM, unit of TriesteVia Licio Giorgieri 134127TriesteItaly
- Present address: Department of ChemistryNorthwestern University2145 Sheridan RoadEvanstonIL60208USA
| | - Dirk M. Guldi
- Department of Chemistry and Pharmacy, Interdisciplinary Center for Molecular MaterialsFriedrich-Alexander Universität Erlangen-NürnbergEgerlandstrasse 391058ErlangenGermany
| | - Maurizio Prato
- Department of Chemical and Pharmaceutical SciencesUniversity of Trieste, and INSTM, unit of TriesteVia Licio Giorgieri 134127TriesteItaly
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE)Basque Research and Technology Alliance (BRTA)Paseo de Miramon 18220014Donostia San SebastiánSpain
- Basque Foundation for ScienceIkerbasqueBilbao48013Spain
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12
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Cacioppo M, Scharl T, Đorđević L, Cadranel A, Arcudi F, Guldi DM, Prato M. Symmetry‐Breaking Charge‐Transfer Chromophore Interactions Supported by Carbon Nanodots. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202004638] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Michele Cacioppo
- Department of Chemical and Pharmaceutical Sciences University of Trieste, and INSTM, unit of Trieste Via Licio Giorgieri 1 34127 Trieste Italy
| | - Tobias Scharl
- Department of Chemistry and Pharmacy, Interdisciplinary Center for Molecular Materials Friedrich-Alexander Universität Erlangen-Nürnberg Egerlandstrasse 3 91058 Erlangen Germany
| | - Luka Đorđević
- Department of Chemical and Pharmaceutical Sciences University of Trieste, and INSTM, unit of Trieste Via Licio Giorgieri 1 34127 Trieste Italy
- Present address: Department of Chemistry Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
- Present address: Simpson Querrey Institute Northwestern University 303 E. Superior Chicago IL 60611 USA
| | - Alejandro Cadranel
- Department of Chemistry and Pharmacy, Interdisciplinary Center for Molecular Materials Friedrich-Alexander Universität Erlangen-Nürnberg Egerlandstrasse 3 91058 Erlangen Germany
- Universidad de Buenos Aires Facultad de Ciencias Exactas y Naturales Departamento de Química Inorgánica, Analítica y Química Física Pabellón 2, Ciudad Universitaria C1428EHA Buenos Aires Argentina
- CONICET— Universidad de Buenos Aires Instituto de Química-Física de Materiales, Medio Ambiente y Energía (INQUIMAE) Pabellón 2, Ciudad Universitaria C1428EHA Buenos Aires Argentina
| | - Francesca Arcudi
- Department of Chemical and Pharmaceutical Sciences University of Trieste, and INSTM, unit of Trieste Via Licio Giorgieri 1 34127 Trieste Italy
- Present address: Department of Chemistry Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
| | - Dirk M. Guldi
- Department of Chemistry and Pharmacy, Interdisciplinary Center for Molecular Materials Friedrich-Alexander Universität Erlangen-Nürnberg Egerlandstrasse 3 91058 Erlangen Germany
| | - Maurizio Prato
- Department of Chemical and Pharmaceutical Sciences University of Trieste, and INSTM, unit of Trieste Via Licio Giorgieri 1 34127 Trieste Italy
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE) Basque Research and Technology Alliance (BRTA) Paseo de Miramon 182 20014 Donostia San Sebastián Spain
- Basque Foundation for Science Ikerbasque Bilbao 48013 Spain
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Martin MM, Lungerich D, Hampel F, Langer J, Ronson TK, Jux N. Multiple-Porphyrin Functionalized Hexabenzocoronenes. Chemistry 2019; 25:15083-15090. [PMID: 31429504 PMCID: PMC6899994 DOI: 10.1002/chem.201903113] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Indexed: 11/23/2022]
Abstract
Porphyrin-hexabenzocoronene architectures serve as good model compounds to study light-harvesting systems. Herein, the synthesis of porphyrin functionalized hexa-peri-hexabenzocoronenes (HBCs), in which one or more porphyrins are covalently linked to a central HBC core, is presented. A series of hexaphenylbenzenes (HPBs) was prepared and reacted under oxidative coupling conditions. The transformation to the respective HBC derivatives worked well with mono- and tri-porphyrin-substituted HPBs. However, if more porphyrins are attached to the HPB core, Scholl oxidations are hampered or completely suppressed. Hence, a change of the synthetic strategy was necessary to first preform the HBC core, followed by the introduction of the porphyrins. All products were fully characterized, including, if possible, single-crystal XRD. UV/Vis absorption spectra of porphyrin-HBCs showed, depending on the number of porphyrins as well as with respect to the substitution pattern, variations in their spectral features with strong distortions of the porphyrins' B-band.
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Affiliation(s)
- Max M. Martin
- Department of Chemistry and Pharmacy & Interdisciplinary Center for, Molecular Materials (ICMM), Organic Chemistry IIFriedrich-Alexander-University Erlangen-NürnbergNikolaus-Fiebiger-Strasse 1091058ErlangenGermany
| | - Dominik Lungerich
- Department of Chemistry and Pharmacy & Interdisciplinary Center for, Molecular Materials (ICMM), Organic Chemistry IIFriedrich-Alexander-University Erlangen-NürnbergNikolaus-Fiebiger-Strasse 1091058ErlangenGermany
| | - Frank Hampel
- Department of Chemistry and Pharmacy & Interdisciplinary Center for, Molecular Materials (ICMM), Organic Chemistry IIFriedrich-Alexander-University Erlangen-NürnbergNikolaus-Fiebiger-Strasse 1091058ErlangenGermany
| | - Jens Langer
- Inorganic and Organometallic ChemistryEgerlandstrasse 191058ErlangenGermany
| | - Tanya K. Ronson
- Department of ChemistryUniversity of CambridgeLensfield RoadCambridgeCB2 1EWUK
| | - Norbert Jux
- Department of Chemistry and Pharmacy & Interdisciplinary Center for, Molecular Materials (ICMM), Organic Chemistry IIFriedrich-Alexander-University Erlangen-NürnbergNikolaus-Fiebiger-Strasse 1091058ErlangenGermany
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14
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Martin MM, Dill M, Langer J, Jux N. Porphyrin-Hexaphenylbenzene Conjugates via Mixed Cyclotrimerization Reactions. J Org Chem 2019; 84:1489-1499. [PMID: 30596243 DOI: 10.1021/acs.joc.8b02907] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Mixed cyclotrimerization reactions of diarylacetylenes (tolans) were applied to generate a library of multiple porphyrin-hexaphenylbenzene (HPB) architectures. Successful reactions, which could be influenced by the ratio of tolan starting materials, were conducted using dicobaltoctacarbonyl as a catalyst. Separation of the reaction products was performed by chromatographic and crystallization techniques. The physical properties were investigated with respect to the number of porphyrins per HPB and their substitution pattern.
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Affiliation(s)
- Max M Martin
- Department Chemie und Pharmazie & Interdisciplinary Center for Molecular Materials (ICMM) , Friedrich-Alexander-Universität Erlangen-Nürnberg , Nikolaus-Fiebiger-Strasse 10 , 91058 Erlangen , Germany
| | - Maximilian Dill
- Department Chemie und Pharmazie & Interdisciplinary Center for Molecular Materials (ICMM) , Friedrich-Alexander-Universität Erlangen-Nürnberg , Nikolaus-Fiebiger-Strasse 10 , 91058 Erlangen , Germany
| | - Jens Langer
- Inorganic and Organometallic Chemistry , Egerlandstrasse 1 , 91058 Erlangen , Germany
| | - Norbert Jux
- Department Chemie und Pharmazie & Interdisciplinary Center for Molecular Materials (ICMM) , Friedrich-Alexander-Universität Erlangen-Nürnberg , Nikolaus-Fiebiger-Strasse 10 , 91058 Erlangen , Germany
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15
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Kashida H, Kawai H, Maruyama R, Kokubo Y, Araki Y, Wada T, Asanuma H. Quantitative evaluation of energy migration between identical chromophores enabled by breaking symmetry. Commun Chem 2018. [DOI: 10.1038/s42004-018-0093-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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16
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Budyka MF, Gavrishova TN, Potashova NI, Li VM. Irreversible One-Way [2+2] Photocycloaddition in Bis-Styrylbenzo[f]quinoline Dyad: Photoactive and Photoinert Excimers in the Same System. ChemistrySelect 2018. [DOI: 10.1002/slct.201802550] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Mikhail F. Budyka
- Department of Nanophotonics; Institute of Problems of Chemical Physics; Russian Academy of Sciences; 142432 Chernogolovka, Moscow Region Russian Federation
| | - Tatiana N. Gavrishova
- Department of Nanophotonics; Institute of Problems of Chemical Physics; Russian Academy of Sciences; 142432 Chernogolovka, Moscow Region Russian Federation
| | - Natalia I. Potashova
- Department of Nanophotonics; Institute of Problems of Chemical Physics; Russian Academy of Sciences; 142432 Chernogolovka, Moscow Region Russian Federation
| | - Vitalii M. Li
- Department of Nanophotonics; Institute of Problems of Chemical Physics; Russian Academy of Sciences; 142432 Chernogolovka, Moscow Region Russian Federation
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17
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Maragani R, Thomas MB, Misra R, D’Souza F. C3-Symmetric Positional Isomers of BODIPY Substituted Triazines: Synthesis and Excited State Properties. J Phys Chem A 2018; 122:4829-4837. [DOI: 10.1021/acs.jpca.8b02967] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ramesh Maragani
- Department of Chemistry, Indian Institute of Technology, Indore 453552, India
| | - Michael B. Thomas
- Department of Chemistry, University of North Texas, 1155 Union Circle, #305070, Denton, Texas 76203-5017, United States
| | - Rajneesh Misra
- Department of Chemistry, Indian Institute of Technology, Indore 453552, India
| | - Francis D’Souza
- Department of Chemistry, University of North Texas, 1155 Union Circle, #305070, Denton, Texas 76203-5017, United States
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18
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Somoza AD, Sun KW, Molina RA, Zhao Y. Dynamics of coherence, localization and excitation transfer in disordered nanorings. Phys Chem Chem Phys 2018; 19:25996-26013. [PMID: 28920601 DOI: 10.1039/c7cp03171h] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Self-assembled supramolecular aggregates are excellent candidates for the design of efficient excitation transport devices. Both artificially prepared and natural photosynthetic aggregates in plants and bacteria present an important degree of disorder that is supposed to hinder excitation transport. Besides, molecular excitations couple to nuclear motion affecting excitation transport in a variety of ways. We present an exhaustive study of exciton dynamics in disordered nanorings with long-range interactions under the influence of a phonon bath taking the LH2 system of purple bacteria as a model. Nuclear motion is explicitly taken into account by employing the Davydov ansatz description of the polaron and quantum dynamics are obtained using a time-dependent variational method. We reveal an optimal exciton-phonon coupling that suppresses disorder-induced localization and facilitate excitation de-trapping. This excitation transfer enhancement, mediated by environmental phonons, is attributed to energy relaxation toward extended, low-energy excitons provided by the precise LH2 geometry with anti-parallel dipoles and long-range interactions. An analysis of localization and spectral statistics is followed by dynamic measures of coherence and localization, transfer efficiency and superradiance. Linear absorption, 2D photon-echo spectra and diffusion measures of the exciton are examined to monitor the diffusive behavior as a function of the strengths of disorder and exciton-phonon coupling.
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Affiliation(s)
- Alejandro D Somoza
- Division of Materials Science, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore.
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19
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Fakis M, Beckwith JS, Seintis K, Martinou E, Nançoz C, Karakostas N, Petsalakis I, Pistolis G, Vauthey E. Energy transfer and charge separation dynamics in photoexcited pyrene-bodipy molecular dyads. Phys Chem Chem Phys 2018; 20:837-849. [PMID: 29230451 DOI: 10.1039/c7cp06914f] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The photophysical properties of two pyrene-bodipy molecular dyads, composed of a phenyl-pyrene (Py-Ph) linked to the meso position of a bodipy (BD) molecule with either H-atoms (BD1) or ethyl groups (BD2) at the 2,6 positions, are investigated by stationary, nanosecond and femtosecond spectroscopy. The properties of these dyads (Py-Ph-BD1 and Py-Ph-BD2) are compared to those of their constituent chromophores in two solvents namely 1,2-dichloroethane (DCE) and acetonitrile (ACN). Stationary spectroscopy reveals a weak coupling among the subunits in both dyads. Excitation of the pyrene (Py) subunit leads to emission that is totally governed by the BD subunits in both dyads pointing to excitation energy transfer (EET) from the Py to BD chromophore. Femtosecond fluorescence and transient absorption spectroscopy reveal that EET takes place within 0.3-0.5 ps and is mostly independent of the solvent and the type of the BD subunit. The EET lifetime is in reasonable agreement with that predicted by Förster theory. After EET has taken place, Py-Ph-BD1 in DCE and Py-Ph-BD2 in both solvents decay mainly radiatively to the ground state with 3.5-5.0 ns lifetimes which are similar to those of the individual BD chromophores. However, the excited state of Py-Ph-BD1 in ACN is quenched having a lifetime of 1 ns. This points to the opening of an additional non-radiative channel of the excited state of Py-Ph-BD1 in this solvent, most probably charge separation (CS). Target analysis of the TA spectra has shown that the CS follows inverted kinetics and is substantially slower than the recombination of the charge-separated state. Occurrence of CS with Py-Ph-BD1 in ACN is also supported by energetic considerations. The above results indicate that only a small change in the structure of the BD units incorporated in the dyads significantly affects the excited state dynamics leading either to a dyad with long lifetime and high fluorescence quantum yield or to a dyad with ability to undergo CS.
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Affiliation(s)
- M Fakis
- Department of Physics, University of Patras, GR-26504, Patras, Greece.
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20
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Seintis K, Agathangelou D, Cvejn D, Almonasy N, Bureš F, Giannetas V, Fakis M. Femtosecond to nanosecond studies of octupolar molecules and their quadrupolar and dipolar analogues. Phys Chem Chem Phys 2017; 19:16485-16497. [DOI: 10.1039/c7cp01463e] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The fs–ps anisotropy dynamics of octupolar, quadrupolar and dipolar molecules with different π-bridges.
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Affiliation(s)
- K. Seintis
- Department of Physics
- University of Patras
- Patras
- Greece
| | | | - D. Cvejn
- Institute of Organic Chemistry and Technology
- Faculty of Chemical Technology
- University of Pardubice
- Pardubice
- Czech Republic
| | - N. Almonasy
- Institute of Organic Chemistry and Technology
- Faculty of Chemical Technology
- University of Pardubice
- Pardubice
- Czech Republic
| | - F. Bureš
- Institute of Organic Chemistry and Technology
- Faculty of Chemical Technology
- University of Pardubice
- Pardubice
- Czech Republic
| | - V. Giannetas
- Department of Physics
- University of Patras
- Patras
- Greece
| | - M. Fakis
- Department of Physics
- University of Patras
- Patras
- Greece
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21
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Deschamps J, Langlois A, Martin G, Bucher L, Desbois N, Gros CP, Harvey PD. Cyclotriveratrylene-Containing Porphyrins. Inorg Chem 2016; 55:9230-9. [DOI: 10.1021/acs.inorgchem.6b01261] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jude Deschamps
- Département de Chimie, Université de Sherbrooke, Sherbrooke, Québec Canada, J1K 2R1
| | | | - Gaël Martin
- Université de Bourgogne Franche-Comté, ICMUB
(UMR CNRS 6302), 9, Avenue
Alain Savary, BP 47870, Dijon 21078 Cedex, France
| | - Léo Bucher
- Département de Chimie, Université de Sherbrooke, Sherbrooke, Québec Canada, J1K 2R1
- Université de Bourgogne Franche-Comté, ICMUB
(UMR CNRS 6302), 9, Avenue
Alain Savary, BP 47870, Dijon 21078 Cedex, France
| | - Nicolas Desbois
- Université de Bourgogne Franche-Comté, ICMUB
(UMR CNRS 6302), 9, Avenue
Alain Savary, BP 47870, Dijon 21078 Cedex, France
| | - Claude P. Gros
- Université de Bourgogne Franche-Comté, ICMUB
(UMR CNRS 6302), 9, Avenue
Alain Savary, BP 47870, Dijon 21078 Cedex, France
| | - Pierre D. Harvey
- Département de Chimie, Université de Sherbrooke, Sherbrooke, Québec Canada, J1K 2R1
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22
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Xiang Y, Wang Q, Wang G, Li X, Zhang D, Jin W. Synthesis and coordination of star-shaped electron-deficient hexaheteroarylbenzene derivatives containing three pyrimidylbenzene derivatives. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.03.080] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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23
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Steeger M, Holzapfel M, Schmiedel A, Lambert C. Energy redistribution dynamics in triarylamine–triarylborane containing hexaarylbenzenes. Phys Chem Chem Phys 2016; 18:13403-12. [DOI: 10.1039/c6cp01923d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Hexaarylbenzenes with triarylamine donors and triarylborane acceptors show rapid energy transfer (∼3 ps) as proved by pump–probe spectroscopy with fs-time resolution.
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Affiliation(s)
- M. Steeger
- Institut für Organische Chemie
- Wilhelm Conrad Röntgen Research Center for Complex Material Systems
- Center for Nanosystems Chemistry
- 97074 Würzburg
- Germany
| | - M. Holzapfel
- Institut für Organische Chemie
- Wilhelm Conrad Röntgen Research Center for Complex Material Systems
- Center for Nanosystems Chemistry
- 97074 Würzburg
- Germany
| | - A. Schmiedel
- Institut für Organische Chemie
- Wilhelm Conrad Röntgen Research Center for Complex Material Systems
- Center for Nanosystems Chemistry
- 97074 Würzburg
- Germany
| | - C. Lambert
- Institut für Organische Chemie
- Wilhelm Conrad Röntgen Research Center for Complex Material Systems
- Center for Nanosystems Chemistry
- 97074 Würzburg
- Germany
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24
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Murugavel M, Reddy RVR, Dey D, Sankar J. First Example of a Modular Porphyrinoid Assembly Capable of Stabilizing Different Metal Ions in a Single Molecular Scaffold. Chemistry 2015; 21:14280-6. [DOI: 10.1002/chem.201501471] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2015] [Indexed: 11/09/2022]
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25
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Kaur T, Khan TK, Ravikanth M. Multi-Expanded Porphyrin Assemblies on Cyclophosphazene Scaffolds. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500131] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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26
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Terazono Y, Kodis G, Chachisvilis M, Cherry BR, Fournier M, Moore A, Moore TA, Gust D. Multiporphyrin arrays with π-π interchromophore interactions. J Am Chem Soc 2015; 137:245-58. [PMID: 25514369 DOI: 10.1021/ja510267c] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
A recently reported synthetic method has been employed to prepare several arrays of free base and zinc porphyrins. In the arrays, the porphyrins are arranged around a central benzene ring. The lack of aryl rings in the linkages to the central benzene ring, coupled with the presence of only one meso-aryl substituent on each porphyrin, allows strong electronic interactions between the porphyrin macrocycles. In arrays containing two or six porphyrins, a variety of evidence indicates that the porphyrins exist as twist-stacked dimers reminiscent of the special pairs of bacteriochlorophylls found in some photosynthetic bacteria. These dimers feature van der Waals contact between the macrocycles, and demonstrate excitonic splitting due to π-π interactions. The excitonic effects split and blue-shift the Soret absorptions, and slightly broaden the Q-band absorptions and shift them to longer wavelengths. The interactions also lower the first oxidation potentials by ca. 100 mV, and the arrays show evidence for delocalization of the radical cation over both porphyrins in the dimer. The arrays demonstrate singlet-singlet energy transfer among the chromophores. Arrays of this type will be good models for some aspects of the interactions of photosynthetic pigments, including those of reaction center special pairs and possibly quantum coherence effects. They can also be useful in artificial photosynthetic constructs.
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Affiliation(s)
- Yuichi Terazono
- Department of Chemistry and Biochemistry, Arizona State University , Tempe, Arizona 85287, United States
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27
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Zhang D, Wang G, Li R, Li X, Xiang Y, Zhang Z, Jin W. Synthesis and characterization of pyrimidine-containing hexaarylbenzene derivatives. RSC Adv 2015. [DOI: 10.1039/c5ra18422c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Three claw-shaped hexaarylbenzene derivatives containing pyrimidines have been synthesized by cobalt-catalyzed corresponding tolan derivatives.
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Affiliation(s)
- Dengqing Zhang
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
- P. R. China
| | - Gang Wang
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
- P. R. China
| | - Rong Li
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
- P. R. China
| | - Xianying Li
- School of Environmental Science and Engineering
- Donghua University
- Shanghai 201620
- P. R. China
| | - Yunjie Xiang
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
- P. R. China
| | - Zhen Zhang
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
- P. R. China
| | - Wusong Jin
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
- P. R. China
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28
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Meininger DJ, Muzquiz N, Arman HD, Tonzetich ZJ. Synthesis, characterization, and atropisomerism of iron complexes containing the tetrakis(2-chloro-6-fluorophenyl)porphyrinate ligand. Dalton Trans 2015; 44:9486-95. [DOI: 10.1039/c5dt01122a] [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
The synthesis of iron complexes containing the 5,10,15,20-tetrakis(2-chloro-6-fluorophenyl)porphyrin ligand is presented and the factors surrounding the observed atropisomerism are investigated.
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Affiliation(s)
- Daniel J. Meininger
- Department of Chemistry
- University of Texas at San Antonio (UTSA)
- San Antonio
- USA
| | - Nicanor Muzquiz
- Department of Chemistry
- University of Texas at San Antonio (UTSA)
- San Antonio
- USA
| | - Hadi D. Arman
- Department of Chemistry
- University of Texas at San Antonio (UTSA)
- San Antonio
- USA
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29
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Long S, Wang Y, Vdović S, Zhou M, Yan L, Niu Y, Guo Q, Xia A. Energy transfer and spectroscopic characterization of a perylenetetracarboxylic diimide (PDI) hexamer. Phys Chem Chem Phys 2015; 17:18567-76. [DOI: 10.1039/c5cp01514f] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two different interactions in a PDI-hexamer, a strong interaction in face-to-face dimers and a weak interaction between the separated dimers, are investigated.
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Affiliation(s)
- Saran Long
- Beijing National Laboratory for Molecular Sciences (BNLMS)
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- People's Republic of China
| | - Yingying Wang
- Beijing National Laboratory for Molecular Sciences (BNLMS)
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- People's Republic of China
| | - Silvije Vdović
- Beijing National Laboratory for Molecular Sciences (BNLMS)
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- People's Republic of China
| | - Meng Zhou
- Beijing National Laboratory for Molecular Sciences (BNLMS)
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- People's Republic of China
| | - Linyin Yan
- Beijing National Laboratory for Molecular Sciences (BNLMS)
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- People's Republic of China
| | - Yingli Niu
- Beijing National Laboratory for Molecular Sciences (BNLMS)
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- People's Republic of China
| | - Qianjin Guo
- Beijing National Laboratory for Molecular Sciences (BNLMS)
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- People's Republic of China
| | - Andong Xia
- Beijing National Laboratory for Molecular Sciences (BNLMS)
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- People's Republic of China
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30
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Steeger M, Griesbeck S, Schmiedel A, Holzapfel M, Krummenacher I, Braunschweig H, Lambert C. On the relation of energy and electron transfer in multidimensional chromophores based on polychlorinated triphenylmethyl radicals and triarylamines. Phys Chem Chem Phys 2015; 17:11848-67. [DOI: 10.1039/c4cp05929h] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Chromophores with many donors and acceptors show electron transfer which is identical to energy transfer.
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Affiliation(s)
- Markus Steeger
- Institut für Organische Chemie
- Universität Würzburg, and Center for Nanosystems Chemistry
- 97074 Würzburg
- Germany
| | - Stefanie Griesbeck
- Institut für Organische Chemie
- Universität Würzburg, and Center for Nanosystems Chemistry
- 97074 Würzburg
- Germany
| | - Alexander Schmiedel
- Institut für Organische Chemie
- Universität Würzburg, and Center for Nanosystems Chemistry
- 97074 Würzburg
- Germany
| | - Marco Holzapfel
- Institut für Organische Chemie
- Universität Würzburg, and Center for Nanosystems Chemistry
- 97074 Würzburg
- Germany
| | - Ivo Krummenacher
- Institut für Anorganische Chemie
- Universität Würzburg
- 97074 Würzburg
- Germany
| | | | - Christoph Lambert
- Institut für Organische Chemie
- Universität Würzburg, and Center for Nanosystems Chemistry
- 97074 Würzburg
- Germany
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31
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Yong CK, Parkinson P, Kondratuk DV, Chen WH, Stannard A, Summerfield A, Sprafke JK, O'Sullivan MC, Beton PH, Anderson HL, Herz LM. Ultrafast delocalization of excitation in synthetic light-harvesting nanorings. Chem Sci 2015; 6:181-189. [PMID: 28553466 PMCID: PMC5424671 DOI: 10.1039/c4sc02424a] [Citation(s) in RCA: 91] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2014] [Accepted: 09/16/2014] [Indexed: 11/21/2022] Open
Abstract
Rings of chlorophyll molecules harvest sunlight remarkably efficiently during photosynthesis in purple bacteria. The key to their efficiency lies in their highly delocalized excited states that allow for ultrafast energy migration. Here we show that a family of synthetic nanorings mimic the ultrafast energy transfer and delocalization observed in nature. π-Conjugated nanorings with diameters of up to 10 nm, consisting of up to 24 porphyrin units, are found to exhibit excitation delocalization within the first 200 fs of light absorption. Transitions from the first singlet excited state of the circular nanorings are dipole-forbidden as a result of symmetry constraints, but these selection rules can be lifted through static and dynamic distortions of the rings. The increase in the radiative emission rate in the larger nanorings correlates with an increase in static disorder expected from Monte Carlo simulations. For highly symmetric rings, the radiative rate is found to increase with increasing temperature. Although this type of thermally activated superradiance has been theoretically predicted in circular chromophore arrays, it has not previously been observed in any natural or synthetic systems. As expected, the activation energy for emission increases when a nanoring is fixed in a circular conformation by coordination to a radial template. These nanorings offer extended chromophores with high excitation delocalization that is remarkably stable against thermally induced disorder. Such findings open new opportunities for exploring coherence effects in nanometer molecular rings and for implementing these biomimetic light-harvesters in man-made devices.
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Affiliation(s)
- Chaw-Keong Yong
- University of Oxford , Department of Physics , Clarendon Laboratory , Parks Road , Oxford , OX1 3PU , UK .
| | - Patrick Parkinson
- University of Oxford , Department of Physics , Clarendon Laboratory , Parks Road , Oxford , OX1 3PU , UK .
| | - Dmitry V Kondratuk
- University of Oxford , Department of Chemistry , Chemistry Research Laboratory , Oxford , OX1 3TA , UK .
| | - Wei-Hsin Chen
- University of Oxford , Department of Physics , Clarendon Laboratory , Parks Road , Oxford , OX1 3PU , UK .
| | - Andrew Stannard
- School of Physics & Astronomy , University of Nottingham , Nottingham , NG7 2RD , UK
| | - Alex Summerfield
- School of Physics & Astronomy , University of Nottingham , Nottingham , NG7 2RD , UK
| | - Johannes K Sprafke
- University of Oxford , Department of Chemistry , Chemistry Research Laboratory , Oxford , OX1 3TA , UK .
| | - Melanie C O'Sullivan
- University of Oxford , Department of Chemistry , Chemistry Research Laboratory , Oxford , OX1 3TA , UK .
| | - Peter H Beton
- School of Physics & Astronomy , University of Nottingham , Nottingham , NG7 2RD , UK
| | - Harry L Anderson
- University of Oxford , Department of Chemistry , Chemistry Research Laboratory , Oxford , OX1 3TA , UK .
| | - Laura M Herz
- University of Oxford , Department of Physics , Clarendon Laboratory , Parks Road , Oxford , OX1 3PU , UK .
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32
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Kaur T, Rajeswararao M, Ravikanth M. Multiporphyrin Arrays on Cyclotriphosphazene Scaffolds. Inorg Chem 2014; 53:11051-9. [DOI: 10.1021/ic501569e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tejinder Kaur
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India
| | | | - Mangalampalli Ravikanth
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India
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33
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Budyka MF, Lee VM, Gavrishova TN. Proton-driven “one-way” photoisomerization due to energy transfer switching in styrylquinoline–merocyanine dyad. J Photochem Photobiol A Chem 2014. [DOI: 10.1016/j.jphotochem.2014.01.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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34
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Collini E, Bolzonello L, Zerbetto M, Ferrante C, Manfredi N, Abbotto A. Lifetime shortening and fast energy-tansfer processes upon dimerization of a A-π-D-π-A molecule. Chemphyschem 2014; 15:310-9. [PMID: 24265124 DOI: 10.1002/cphc.201300694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2013] [Revised: 10/21/2013] [Indexed: 11/10/2022]
Abstract
Time-resolved fluorescence and transient absorption experiments uncover a distinct change in the relaxation dynamics of the homo-dimer formed by two 2,5-bis[1-(4-N-methylpyridinium)ethen-2-yl)]-N-methylpyrrole ditriflate (M) units linked by a short alkyl chain when compared to that of the monomer M. Fluorescence decay traces reveal characteristic decay times of 1.1 ns and 210 ps for M and the dimer, respectively. Transient absorption spectra in the spectral range of 425-1050 nm display similar spectral features for both systems, but strongly differ in the characteristic relaxation times gathered from a global fit of the experimental data. To rationalize the data we propose that after excitation of the dimer the energy localizes on one M branch and then decays to a dark state, peculiar only of the dimer. This dark state relaxes to the ground state within 210 ps through non-radiative relaxation. The nature of the dark state is discussed in relation to different possible photophysical processes such as excimer formation and charge transfer between the two M units. Anisotropy decay traces of the probe-beam differential transmittance of M and the dimer fall on complete different time scales as well. The anisotropy decay for M is satisfactorily ascribed to rotational diffusion in DMSO, whereas for the dimer it occurs on a faster time scale and is likely caused by energy-transfer processes between the two monomer M units.
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Affiliation(s)
- Elisabetta Collini
- Dipartimento di Scienze Chimiche and UdR INSTM, Università di Padova, Via Marzolo 1, 35131 Padova (Italy)
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35
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Kojima T, Hiraoka S. Selective Alternate Derivatization of the Hexaphenylbenzene Framework through a Thermodynamically Controlled Halogen Dance. Org Lett 2014; 16:1024-7. [DOI: 10.1021/ol500041j] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Tatsuo Kojima
- Department of Integrated
Sciences, Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902, Japan
| | - Shuichi Hiraoka
- Department of Integrated
Sciences, Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902, Japan
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36
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Fluctuating exciton localization in giant π-conjugated spoked-wheel macrocycles. Nat Chem 2013; 5:964-70. [DOI: 10.1038/nchem.1758] [Citation(s) in RCA: 82] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2013] [Accepted: 08/14/2013] [Indexed: 11/08/2022]
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37
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Aratani N, Yoon ZS, Kim D, Osuka A. Correlation of Fluorescence Anisotropy Decay with Molecular Size and Shape of Covalently and Noncovalently Bound Large Porphyrin Arrays. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.200600005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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38
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Watching energy transfer in metalloporphyrin heterodimers using stimulated X-ray Raman spectroscopy. Proc Natl Acad Sci U S A 2013; 110:15597-601. [PMID: 24019462 DOI: 10.1073/pnas.1308604110] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Understanding the excitation energy transfer mechanism in multiporphyrin arrays is key for designing artificial light-harvesting devices and other molecular electronics applications. Simulations of the stimulated X-ray Raman spectroscopy signals of a Zn/Ni porphyrin heterodimer induced by attosecond X-ray pulses show that these signals can directly reveal electron-hole pair motions. These dynamics are visualized by a natural orbital decomposition of the valence electron wavepackets.
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39
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Zhou Z, Zhang X, Liu Q, Yan Z, Lv C, Long G. Geometry and Temperature Dependence of meso-Aryl Rotation in Strained Metalloporphyrins: Adjustable Turnstile Molecules. Inorg Chem 2013; 52:10258-63. [DOI: 10.1021/ic4001208] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Zaichun Zhou
- School of Chemistry and Chemical
Engineering, Key Laboratory of Theoretical
Chemistry and Molecular Simulation of Ministry of Education, and Hunan Provincial University Key Laboratory of QSAR/QSPR, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Xi Zhang
- School of Chemistry and Chemical
Engineering, Key Laboratory of Theoretical
Chemistry and Molecular Simulation of Ministry of Education, and Hunan Provincial University Key Laboratory of QSAR/QSPR, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Qiuhua Liu
- School of Chemistry and Chemical
Engineering, Key Laboratory of Theoretical
Chemistry and Molecular Simulation of Ministry of Education, and Hunan Provincial University Key Laboratory of QSAR/QSPR, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Ziqiang Yan
- School of Chemistry and Chemical
Engineering, Key Laboratory of Theoretical
Chemistry and Molecular Simulation of Ministry of Education, and Hunan Provincial University Key Laboratory of QSAR/QSPR, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Chengjin Lv
- School of Chemistry and Chemical
Engineering, Key Laboratory of Theoretical
Chemistry and Molecular Simulation of Ministry of Education, and Hunan Provincial University Key Laboratory of QSAR/QSPR, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Ge Long
- School of Chemistry and Chemical
Engineering, Key Laboratory of Theoretical
Chemistry and Molecular Simulation of Ministry of Education, and Hunan Provincial University Key Laboratory of QSAR/QSPR, Hunan University of Science and Technology, Xiangtan 411201, China
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40
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Xue L, Shi Y, Zhang L, Li X. Difference in the Photophysical Properties of a Perylenetetracarboxylic Diimide Dimer and a Hexamer Linked by the Same Hexaphenylbenzene Group. Chemphyschem 2013; 14:3319-26. [DOI: 10.1002/cphc.201300602] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2013] [Indexed: 11/10/2022]
Affiliation(s)
- Lin Xue
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education of China, Department of Chemistry, Shandong University, Shanda nan lu, #27, Jinan, Shandong, 250100 (China), Fax: (+86) 531‐88564464
| | - Yan Shi
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education of China, Department of Chemistry, Shandong University, Shanda nan lu, #27, Jinan, Shandong, 250100 (China), Fax: (+86) 531‐88564464
| | - Liangliang Zhang
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education of China, Department of Chemistry, Shandong University, Shanda nan lu, #27, Jinan, Shandong, 250100 (China), Fax: (+86) 531‐88564464
| | - Xiyou Li
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education of China, Department of Chemistry, Shandong University, Shanda nan lu, #27, Jinan, Shandong, 250100 (China), Fax: (+86) 531‐88564464
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41
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Mai C, Huang Y, Chiu C, Lin H, Lin Y, Yeh C. Switchable Interporphyrin Interaction in an Anthraquinone‐Bridged Porphyrin Dimer. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.201300149] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Chi‐Lun Mai
- Department of Chemistry and Center of Nanoscience and Nanotechnology, National Chung Hsing University, Taichung 402, Taiwan
| | - Yi‐Lin Huang
- Department of Chemistry and Center of Nanoscience and Nanotechnology, National Chung Hsing University, Taichung 402, Taiwan
| | - Chien‐Lan Chiu
- Department of Chemistry and Center of Nanoscience and Nanotechnology, National Chung Hsing University, Taichung 402, Taiwan
| | - Hsin‐Yu Lin
- Department of Chemistry and Center of Nanoscience and Nanotechnology, National Chung Hsing University, Taichung 402, Taiwan
| | - You‐Shiang Lin
- Department of Chemistry and Center of Nanoscience and Nanotechnology, National Chung Hsing University, Taichung 402, Taiwan
| | - Chen‐Yu Yeh
- Department of Chemistry and Center of Nanoscience and Nanotechnology, National Chung Hsing University, Taichung 402, Taiwan
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42
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Garg V, Kodis G, Liddell PA, Terazono Y, Moore TA, Moore AL, Gust D. Artificial Photosynthetic Reaction Center with a Coumarin-Based Antenna System. J Phys Chem B 2013; 117:11299-308. [DOI: 10.1021/jp402265e] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Vikas Garg
- Department of Chemistry and Biochemistry, Center for
Bio-Inspired Solar Fuel Production, Arizona State University, Tempe, Arizona 85287-1604, United States
| | - Gerdenis Kodis
- Department of Chemistry and Biochemistry, Center for
Bio-Inspired Solar Fuel Production, Arizona State University, Tempe, Arizona 85287-1604, United States
| | - Paul A. Liddell
- Department of Chemistry and Biochemistry, Center for
Bio-Inspired Solar Fuel Production, Arizona State University, Tempe, Arizona 85287-1604, United States
| | - Yuichi Terazono
- Department of Chemistry and Biochemistry, Center for
Bio-Inspired Solar Fuel Production, Arizona State University, Tempe, Arizona 85287-1604, United States
| | - Thomas A. Moore
- Department of Chemistry and Biochemistry, Center for
Bio-Inspired Solar Fuel Production, Arizona State University, Tempe, Arizona 85287-1604, United States
| | - Ana L. Moore
- Department of Chemistry and Biochemistry, Center for
Bio-Inspired Solar Fuel Production, Arizona State University, Tempe, Arizona 85287-1604, United States
| | - Devens Gust
- Department of Chemistry and Biochemistry, Center for
Bio-Inspired Solar Fuel Production, Arizona State University, Tempe, Arizona 85287-1604, United States
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43
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Harvey PD, Brégier F, Aly SM, Szmytkowski J, Paige MF, Steer RP. Dendron to Central Core S1-S1and S2-Sn(n>1) Energy Transfers in Artificial Special Pairs Containing Dendrimers with Limited Numbers of Conformations. Chemistry 2013; 19:4352-68. [DOI: 10.1002/chem.201203033] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2012] [Indexed: 11/08/2022]
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44
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Mishra B, Shekar KPC, Kumar A, Phukan S, Mitra S, Kumar D. Facile Synthesis, Characterization, and Fluorescence Studies of Novel Porphyrin Appended Thiazoles. J Heterocycl Chem 2013. [DOI: 10.1002/jhet.1009] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Bhupendra Mishra
- Chemistry Group; Birla Institute of Technology and Science; Pilani; 333 031; India
| | - K. P. Chandra Shekar
- Chemistry Group; Birla Institute of Technology and Science; Pilani; 333 031; India
| | - Anil Kumar
- Chemistry Group; Birla Institute of Technology and Science; Pilani; 333 031; India
| | - S. Phukan
- Department of Chemistry; North-Eastern Hill University; Permanent Campus, Umshing; Shillong; 793 022; India
| | - S. Mitra
- Department of Chemistry; North-Eastern Hill University; Permanent Campus, Umshing; Shillong; 793 022; India
| | - Dalip Kumar
- Chemistry Group; Birla Institute of Technology and Science; Pilani; 333 031; India
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45
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Copley G, Moore TA, Moore AL, Gust D. Analog applications of photochemical switches. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2013; 25:456-461. [PMID: 23427337 DOI: 10.1002/adma.201201744] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Molecules that change their structure in response to a stimulus such as light or an added chemical can act as molecular switches. Such switches can be chemically linked to other active moieties to create molecular "devices" for various purposes. There has been much activity of late in the use of molecular switches such as photochromes in the construction of molecular logic gates that carry out binary or digital functions. However, ensembles of such molecules can also act as analog devices. Here, examples of a molecular photonic signal transducer and two mimics of photosynthetic photoregulatory processes are discussed.
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Affiliation(s)
- Graeme Copley
- Department of Chemistry and Biochemistry, Arizona State University, Tempe, AZ 85287, USA
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46
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Jin F, Wang HZ, Zhang Y, Wang Y, Zhang J, Kong L, Hao FY, Yang JX, Wu JY, Tian YP, Zhou HP. Metal cation- and anion-induced assembly: structures and luminescent properties. CrystEngComm 2013. [DOI: 10.1039/c3ce26685k] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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47
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Yoon MC, Lee S, Tokuji S, Yorimitsu H, Osuka A, Kim D. Homoconjugation in diporphyrins: excitonic behaviors in singly and doubly linked Zn(ii)porphyrin dimers. Chem Sci 2013. [DOI: 10.1039/c3sc22151b] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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48
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Samanta SK, Bhattacharya S. Wide-Range Light-Harvesting Donor-Acceptor Assemblies through Specific Intergelator Interactions via Self-Assembly. Chemistry 2012; 18:15875-85. [DOI: 10.1002/chem.201103855] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2011] [Revised: 07/13/2012] [Indexed: 11/10/2022]
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49
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Yoo H, Furumaki S, Yang J, Lee JE, Chung H, Oba T, Kobayashi H, Rybtchinski B, Wilson TM, Wasielewski MR, Vacha M, Kim D. Excitonic Coupling in Linear and Trefoil Trimer Perylenediimide Molecules Probed by Single-Molecule Spectroscopy. J Phys Chem B 2012; 116:12878-86. [DOI: 10.1021/jp307394x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Hyejin Yoo
- Department of Chemistry, Yonsei University, Seoul 120-749, Korea
| | - Shu Furumaki
- Department of Organic and Polymeric
Materials, Tokyo Institute of Technology, Ookayama 2-12-1-S8, Meguro-ku, Tokyo 152-8552, Japan
| | - Jaesung Yang
- Department of Chemistry, Yonsei University, Seoul 120-749, Korea
| | - Ji-Eun Lee
- Department of Chemistry, Yonsei University, Seoul 120-749, Korea
| | - Heejae Chung
- Department of Chemistry, Yonsei University, Seoul 120-749, Korea
| | - Tatsuya Oba
- Department of Organic and Polymeric
Materials, Tokyo Institute of Technology, Ookayama 2-12-1-S8, Meguro-ku, Tokyo 152-8552, Japan
| | - Hiroyuki Kobayashi
- Department of Organic and Polymeric
Materials, Tokyo Institute of Technology, Ookayama 2-12-1-S8, Meguro-ku, Tokyo 152-8552, Japan
| | - Boris Rybtchinski
- Department of Chemistry and Argonne-Northwestern
Solar Energy Research (ANSER) Center, Northwestern University, Evanston, Illinois 60208-3113, United States
| | - Thea M. Wilson
- 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
| | - Martin Vacha
- Department of Organic and Polymeric
Materials, Tokyo Institute of Technology, Ookayama 2-12-1-S8, Meguro-ku, Tokyo 152-8552, Japan
| | - Dongho Kim
- Department of Chemistry, Yonsei University, Seoul 120-749, Korea
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50
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Steeger M, Lambert C. Charge-Transfer Interactions in Tris-Donor-Tris-Acceptor Hexaarylbenzene Redox Chromophores. Chemistry 2012; 18:11937-48. [DOI: 10.1002/chem.201104020] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2011] [Revised: 05/24/2012] [Indexed: 11/06/2022]
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