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Mandal P, Manna JS, Das D, Maiti R, Mitra MK, Chakravorty D. Magnetic response of chlorophyll self-assembly within hydrogel: a mechanistic approach towards enhanced photoharvesting. RSC Adv 2018; 8:26440-26447. [PMID: 35541073 PMCID: PMC9083083 DOI: 10.1039/c8ra04612c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 07/08/2018] [Indexed: 01/15/2023] Open
Abstract
Self-assembly of chlorophyll-a (Chl-a) molecules within a protein environment serves as the key factor behind controlled and efficient light energy harvesting in natural photosystems. Long-range ordering among supramolecular structures in terms of spin-orbit coupling and edge effect helps in untrapping of excitons in the disordered energy landscape. Mimicking the photosynthetic machinery would give a new paradigm for organic photovoltaic material design where a large amount of disorder exists. In this paper, we report the experimental evidence of room temperature magnetic domain wall formation and edge effect along with spin flop canting in self-assembled Chl-a within hydrogel matrix via SQUID magnetometry. This was further correlated with intermolecular coupling and exciton delocalization through specific arrangements of self-assembly as evident from NMR spectral and photophysical characteristics. The data cumulatively suggest electronic backscattering protection which is also substantiated by the ferroelectric behavior coming from coexisting symmetry lowering. Here the polarization evolves through primary distribution of π electronic density along with a photoresponsive IV loop, similar to the photoprotection of photosynthesis. This work thus proposes a promising design principle for room temperature Chl-a based biomimetic systems efficient in photoharnessing.
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Affiliation(s)
- Pubali Mandal
- School of Materials Science & Nanotechnology, Jadavpur University Kolkata 700032 India
| | - Jhimli S Manna
- School of Materials Science & Nanotechnology, Jadavpur University Kolkata 700032 India
- Department of Electronics & Electrical Communication Engineering, Indian Institute of Technology Kharagpur 721302 India
| | - Debmallya Das
- Department of Materials Science, Indian Association for the Cultivation of Science Kolkata 700032 India
- Metallurgical & Material Engineering Department, Jadavpur University Kolkata 700032 India
| | - Ramaprasad Maiti
- Department of Materials Science, Indian Association for the Cultivation of Science Kolkata 700032 India
- Department of Electronics, Derozio Memorial College Kolkata 700136 India
| | - Manoj K Mitra
- School of Materials Science & Nanotechnology, Jadavpur University Kolkata 700032 India
- Metallurgical & Material Engineering Department, Jadavpur University Kolkata 700032 India
| | - Dipankar Chakravorty
- MLS Professor's Unit, Indian Association for the Cultivation of Science Jadavpur Kolkata 700032 India
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2
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Taffet EJ, Scholes GD. Peridinin Torsional Distortion and Bond-Length Alternation Introduce Intramolecular Charge-Transfer and Correlated Triplet Pair Intermediate Excited States. J Phys Chem B 2018; 122:5835-5844. [DOI: 10.1021/acs.jpcb.8b02504] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Elliot J. Taffet
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Gregory D. Scholes
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
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3
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Kinashi N, Katsumura S, Shinada T, Sakaguchi K. Stereocontrolled Synthesis of 19'-Deoxyperidinin. Org Lett 2018; 20:582-585. [PMID: 29368931 DOI: 10.1021/acs.orglett.7b03695] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The stereocontrolled convergent synthesis of 19'-deoxyperidinin, 2, which might be a useful peridinin analog to understand the ICT characteristics, was efficiently achieved by sequential Pd-catalyzed cross-coupling reactions using bidirectionally extensible conjugated C5 olefin segments. The crucial 5(2H)-ylidenedihydrofuran function of 2 was successfully constructed by the Au-catalyzed regio- and stereoselective 5-exo-dig etherification.
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Affiliation(s)
- Naoto Kinashi
- Graduate School of Science, Osaka City University , 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - Shigeo Katsumura
- Graduate School of Science, Osaka City University , 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - Tetsuro Shinada
- Graduate School of Science, Osaka City University , 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - Kazuhiko Sakaguchi
- Graduate School of Science, Osaka City University , 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
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4
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Jia Y, Shi Y, Wang P, Zhang JP. Triplet excitation dynamics of β -carotene studied in three solvents by ns flash photolysis spectroscopy. CHINESE CHEM LETT 2017. [DOI: 10.1016/j.cclet.2016.05.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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5
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Kvíčalová Z, Alster J, Hofmann E, Khoroshyy P, Litvín R, Bína D, Polívka T, Pšenčík J. Triplet–triplet energy transfer from chlorophylls to carotenoids in two antenna complexes from dinoflagellate Amphidinium carterae. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 2016; 1857:341-9. [DOI: 10.1016/j.bbabio.2016.01.008] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Revised: 01/08/2016] [Accepted: 01/17/2016] [Indexed: 11/24/2022]
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6
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Kosumi D, Horibe T, Sugisaki M, Cogdell RJ, Hashimoto H. Photoprotection Mechanism of Light-Harvesting Antenna Complex from Purple Bacteria. J Phys Chem B 2016; 120:951-6. [PMID: 26800035 DOI: 10.1021/acs.jpcb.6b00121] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Photosynthetic light-harvesting apparatus efficiently capture sunlight and transfer the energy to reaction centers, while they safely dissipate excess energy to surrounding environments for a protection of their organisms. In this study, we performed pump-probe spectroscopic measurements with a temporal window ranging from femtosecond to submillisecond on the purple bacterial antenna complex LH2 from Rhodobacter sphaeroides 2.4.1 to clarify its photoprotection functions. The observed excited state dynamics in the time range from subnanosecond to microsecond exhibits that the triplet-triplet excitation energy transfer from bacteriochlorophyll a to carotenoid takes place with a time constant of 16.7 ns. Furthermore, ultrafast spectroscopic data suggests that a molecular assembly of bacteriochlorophyll a in LH2 efficiently suppresses a generation of triple bacteriochlorophyll a.
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Affiliation(s)
- Daisuke Kosumi
- Institute of Pulsed Power Science, Kumamoto University , 2-39-1 Kurokami, Chuo-ku Kumamoto, 860-8555 Japan.,Department of Physics, Graduate School of Science and Technology, Kumamoto University , Chuo-ku Kumamoto, 860-8555 Japan
| | - Tomoko Horibe
- Department of Applied Chemistry for Environment, Faculty of Science and Technology, Kwansei Gakuin University , 2-1, Gakuen, Sanda, Hyogo 669-1337 Japan
| | - Mitsuru Sugisaki
- Department of Physics, Graduate School of Science, Osaka City University , 3-3-138 Sugimoto, Sumiyoshi-ku Osaka 558-8585, Japan
| | - Richard J Cogdell
- Glasgow Biomedical Research Centre, University of Glasgow, 126 University Place , Glasgow, G12 8QQ, Scotland, U.K
| | - Hideki Hashimoto
- Department of Applied Chemistry for Environment, Faculty of Science and Technology, Kwansei Gakuin University , 2-1, Gakuen, Sanda, Hyogo 669-1337 Japan
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7
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Kinashi N, Sakaguchi K, Katsumura S, Shinada T. Preparation of E -α-stannyl-β-trimethylsilylethynylacrylate, building block for polyconjugated ylidenebutenolide and its derivatives, by novel E -selective ethynylstannylation of propiolate. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2015.11.079] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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8
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Li L, Hu F, Chang YQ, Zhou Y, Wang P, Zhang JP. Triplet excitation dynamics of two keto-carotenoids in n-hexane and in methanol as studied by ns flash photolysis spectroscopy. Chem Phys Lett 2015. [DOI: 10.1016/j.cplett.2015.05.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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9
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Abstract
C29-peridinin is a synthetic analogue of the important, naturally-occurring carotenoid, peridinin, found in several marine algal species. C29-peridinin has five conjugated carbon-carbon double bonds compared to eight possessed by peridinin and also lacks the methyl group functionalities typically present along the polyene chain of carotenoids. These structural modifications lead to unique excited state properties and important insights regarding the factors controlling the photophysics of peridinin and other carbonyl-containing carotenoids, which are critical components of the light-harvesting systems of many photosynthetic organisms.
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10
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Niedzwiedzki DM, Kajikawa T, Aoki K, Katsumura S, Frank HA. Excited States Energies and Dynamics of Peridinin Analogues and the Nature of the Intramolecular Charge Transfer State in Carbonyl-Containing Carotenoids. J Phys Chem B 2013; 117:6874-87. [DOI: 10.1021/jp400038k] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Dariusz M. Niedzwiedzki
- Photosynthetic Antenna Research
Center, Washington University in St Louis, Saint Louis, Missouri 63130, United States
| | - Takayuki Kajikawa
- Department of Chemistry, Kwansei Gakuin University, 669-1337, Hyogo, Japan
| | - Kazuyoshi Aoki
- Department of Chemistry, Kwansei Gakuin University, 669-1337, Hyogo, Japan
| | - Shigeo Katsumura
- Department of Chemistry, Kwansei Gakuin University, 669-1337, Hyogo, Japan
| | - Harry A. Frank
- Department of Chemistry, University of Connecticut, U-3060, 55 North Eagleville
Road, Storrs, Connecticut 06269-3060, United States
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11
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Bovi D, Mezzetti A, Vuilleumier R, Gaigeot MP, Chazallon B, Spezia R, Guidoni L. Environmental effects on vibrational properties of carotenoids: experiments and calculations on peridinin. Phys Chem Chem Phys 2011; 13:20954-64. [PMID: 21946923 DOI: 10.1039/c1cp21985e] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Carotenoids are employed in light-harvesting complexes of dinoflagellates with the two-fold aim to extend the spectral range of the antenna and to protect it from radiation damage. We have studied the effect of the environment on the vibrational properties of the carotenoid peridinin in different solvents by means of vibrational spectroscopies and QM/MM molecular dynamics simulations. Three prototypical solvents were considered: cyclohexane (an apolar/aprotic solvent), deuterated acetonitrile (a polar/aprotic solvent) and methanol (a polar/protic solvent). Thanks to effective normal mode analysis, we were able to assign the experimental Raman and IR bands and to clarify the effect of the solvent on band shifts. In the 1500-1650 cm(-1) region, seven vibrational modes of the polyene chain were identified and assigned to specific molecular vibrations. In the 1700-1800 cm(-1) region a strong progressive down-shift of the lactonic carbonyl frequency is observed passing from cyclohexane to methanol solutions. This has been rationalized here in terms of solvent polarity and solute-solvent hydrogen bond interactions. On the basis of our data we propose a classification of non-equivalent peridinins in the Peridinin-Chlorophyll-Proteins, light-harvesting complexes of dinoflagellates.
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Affiliation(s)
- Daniele Bovi
- Dipartimento di Fisica, Università di Roma LA SAPIENZA, Rome, Italy
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Fuciman M, Enriquez MM, Kaligotla S, Niedzwiedzki DM, Kajikawa T, Aoki K, Katsumura S, Frank HA. Singlet and Triplet State Spectra and Dynamics of Structurally Modified Peridinins. J Phys Chem B 2011; 115:4436-45. [DOI: 10.1021/jp110092c] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Marcel Fuciman
- Department of Chemistry, University of Connecticut, U-3060, 55 North Eagleville Road, Storrs, Connecticut 06269-3060, United States
| | - Miriam M. Enriquez
- Department of Chemistry, University of Connecticut, U-3060, 55 North Eagleville Road, Storrs, Connecticut 06269-3060, United States
| | - Shanti Kaligotla
- Department of Chemistry, University of Connecticut, U-3060, 55 North Eagleville Road, Storrs, Connecticut 06269-3060, United States
| | - Dariusz M. Niedzwiedzki
- Department of Chemistry, University of Connecticut, U-3060, 55 North Eagleville Road, Storrs, Connecticut 06269-3060, United States
| | - Takayuki Kajikawa
- Department of Chemistry, Kwansei Gakuin University, 669-1337, Hyogo, Japan
| | - Kazuyoshi Aoki
- Department of Chemistry, Kwansei Gakuin University, 669-1337, Hyogo, Japan
| | - Shigeo Katsumura
- Department of Chemistry, Kwansei Gakuin University, 669-1337, Hyogo, Japan
| | - Harry A. Frank
- Department of Chemistry, University of Connecticut, U-3060, 55 North Eagleville Road, Storrs, Connecticut 06269-3060, United States
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You ZQ, Hsu CP. Ab inito study on triplet excitation energy transfer in photosynthetic light-harvesting complexes. J Phys Chem A 2011; 115:4092-100. [PMID: 21410281 DOI: 10.1021/jp200200x] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We have studied the triplet energy transfer (TET) for photosynthetic light-harvesting complexes, the bacterial light-harvesting complex II (LH2) of Rhodospirillum molischianum and Rhodopseudomonas acidophila, and the peridinin-chlorophyll a protein (PCP) from Amphidinium carterae. The electronic coupling factor was calculated with the recently developed fragment spin difference scheme (You and Hsu, J. Chem. Phys. 2010, 133, 074105), which is a general computational scheme that yields the overall coupling under the Hamiltonian employed. The TET rates were estimated based on the couplings obtained. For all light-harvesting complexes studied, there exist nanosecond triplet energy transfer from the chlorophylls to the carotenoids. This result supports a direct triplet quenching mechanism for the photoprotection function of carotenoids. The TET rates are similar for a broad range of carotenoid triplet state energy, which implies a general and robust TET quenching role for carotenoids in photosynthesis. This result is also consistent with the weak dependence of TET kinetics on the type or the number of π conjugation lengths in the carotenoids and their analogues reported in the literature. We have also explored the possibility of forming triplet excitons in these complexes. In B850 of LH2 or the peridinin cluster in PCP, it is unlikely to have triplet exciton since the energy differences of any two neighboring molecules are likely to be much larger than their TET couplings. Our results provide theoretical limits to the possible photophysics in the light-harvesting complexes.
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Affiliation(s)
- Zhi-Qiang You
- Taiwan International Graduate Program, Academia Sinica, 128 Section 2 Academia Road, Nankang, Taipei 11529, Taiwan
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14
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Zhang Y, LaFountain AM, Magdaong N, Fuciman M, Allen JP, Frank HA, Rusling JF. Thin Film Voltammetry of Wild Type and Mutant Reaction Center Proteins from Photosynthetic Bacteria. J Phys Chem B 2011; 115:3226-32. [PMID: 21384836 DOI: 10.1021/jp111680p] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yun Zhang
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Amy M. LaFountain
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Nikki Magdaong
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Marcel Fuciman
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269, United States
| | - James P. Allen
- Department of Chemistry and Biochemistry, Arizona State University, Tempe, Arizona 85287, United States
| | - Harry A. Frank
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269, United States
| | - James F. Rusling
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269, United States
- Department of Cell Biology, University of Connecticut Health Center, Farmington, Connecticut 06032, United States
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15
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Niedzwiedzki DM, Kobayashi M, Blankenship RE. Triplet excited state spectra and dynamics of carotenoids from the thermophilic purple photosynthetic bacterium Thermochromatium tepidum. PHOTOSYNTHESIS RESEARCH 2011; 107:177-186. [PMID: 21229315 DOI: 10.1007/s11120-011-9620-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2010] [Accepted: 12/31/2010] [Indexed: 05/30/2023]
Abstract
Light-harvesting complex 2 from the anoxygenic phototrophic purple bacterium Thermochromatium tepidum was purified and studied by steady-state absorption, fluorescence and flash photolysis spectroscopy. Steady-state absorption and fluorescence measurements show that carotenoids play a negligible role as supportive energy donors and transfer excitation to bacteriochlorophyll-a with low energy transfer efficiency of ~30%. HPLC analysis determined that the dominant carotenoids in the complex are rhodopin and spirilloxanthin. Carotenoid excited triplet state formation upon direct (carotenoid) or indirect (bacteriochlorophyll-a Q(x) band) excitation shows that carotenoid triplets are mostly localized on spirilloxanthin. In addition, no triplet excitation transfer between carotenoids was observed. Such specific carotenoid composition and spectroscopic results strongly suggest that this organism optimized carotenoid composition in the light-harvesting complex 2 in order to maximize photoprotective capabilities of carotenoids but subsequently drastically suppressed their supporting role in light-harvesting process.
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16
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Niedzwiedzki DM, Blankenship RE. Singlet and triplet excited state properties of natural chlorophylls and bacteriochlorophylls. PHOTOSYNTHESIS RESEARCH 2010; 106:227-238. [PMID: 21086044 DOI: 10.1007/s11120-010-9598-9] [Citation(s) in RCA: 95] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2010] [Accepted: 11/02/2010] [Indexed: 05/28/2023]
Abstract
Ten naturally occurring chlorophylls (a, b, c (2), d) and bacteriochlorophylls (a, b, c, d, e, g) were purified and studied using the optical spectroscopic techniques of both steady state and time-resolved absorption and fluorescence. The studies were carried out at room temperature in nucleophilic solvents in which the central Mg is hexacoordinated. The comprehensive studies of singlet excited state lifetimes show a clear dependency on the structural features of the macrocycle and terminal substituents. The wide-ranging studies of triplet state lifetime demonstrate the existence of an energy gap law for these molecules. The knowledge of the dynamics and the energies of the triplet state that were obtained in other studies allowed us to construct an energy gap law expression that can be used to estimate the triplet state energies of any (B)chlorophyll molecule from its triplet lifetime obtained in a liquid environment.
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Affiliation(s)
- Dariusz M Niedzwiedzki
- Department of Biology, Washington University in St. Louis, St. Louis, MO 63130-4899, USA
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