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Gobeze HB, Younus M, Turlington MD, Ahmed S, Schanze KS. Characterization of Excited-State Electronic Structure in Diblock π-Conjugated Oligomers with Adjustable Linker Electronic Coupling. Molecules 2024; 29:2678. [PMID: 38893552 PMCID: PMC11173629 DOI: 10.3390/molecules29112678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 05/21/2024] [Accepted: 05/30/2024] [Indexed: 06/21/2024] Open
Abstract
Diblock conjugated oligomers are π-conjugated molecules that contain two segments having distinct frontier orbital energies and HOMO-LUMO gap offsets. These oligomers are of fundamental interest to understand how the distinct π-conjugated segments interact and modify their excited state properties. The current paper reports a study of two series of diblock oligomers that contain oligothiophene (Tn) and 4,7-bis(2-thienyl)-2,1,3-benzothiadiazole (TBT) segments that are coupled by either ethynyl (-C≡C-) or trans-(-C≡C-)2Pt(II)(PBu3)2 acetylide linkers. In these structures, the Tn segment is electron rich (donor), and the TBT is electron poor (acceptor). The diblock oligomers are characterized by steady-state and time-resolved spectroscopy, including UV-visible absorption, fluorescence, fluorescence lifetimes, and ultrafast transient absorption spectroscopy. Studies are compared in several solvents of different polarity and with different excitation wavelengths. The results reveal that the (-C≡C-) linked oligomers feature a delocalized excited state that takes on a charge transfer (CT) character in more polar media. In the (-C≡C-)2Pt(II)(PBu3)2-linked oligomers, there is weak coupling between the Tn and TBT segments. Consequently, short wavelength excitation selectively excites the Tn segment, which then undergoes ultrafast energy transfer (~1 ps) to afford a TBT-localized excited state.
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Affiliation(s)
| | | | | | | | - Kirk S. Schanze
- Department of Chemistry, University of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78249, USA; (H.B.G.); (M.Y.); (M.D.T.); (S.A.)
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2
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Wu GY, Zhu HM, Li H, Zhang K, Zhang X, Yan D, Zhang XD, Lin L, Lu Z. The impact of aggregation of AIE and ACQ moiety-integrating material on the excited state dynamics. RSC Adv 2023; 13:33911-33917. [PMID: 38020029 PMCID: PMC10658659 DOI: 10.1039/d3ra06359c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Accepted: 10/21/2023] [Indexed: 12/01/2023] Open
Abstract
The investigation of the properties of aggregate materials is highly interesting because the process of aggregation can result in the disappearance of original properties and the emergence of new ones. Here, a novel fluorescent material (TPEIP), which synergistically combines aggregation-induced emission (AIE) and aggregation caused quenching (ACQ) moieties, was first synthesized by the cyclization reaction of 2,3-diamino-phenazine with 4-tetraphenylenthenealdehyde. We controlled the degree of aggregation of TPEIP to shed light on the impact of the aggregation on the excited state dynamics. TPEIP aggregation realized control over the Intersystem Crossing (ISC) rates and, in turn, the suppression of triplet excited states in MeOH, EtOH or via the simple addition of water to TPEIP solutions in DMSO. From global target analysis, the time scale was 966.2 ps for ISC for TPEIP in DMSO, but it was 860 ps in the case of TPEIP solutions featuring 5% water. The dynamics of TPEIP excited states undergo significant changes as the degree of aggregation increases. Notably, the lifetime of singlet excited states decreases, and there was a gradual diminishment in triplet states.
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Affiliation(s)
- Gui-Yuan Wu
- Anhui Province Key Laboratory of Optoelectronic Material Science and Technology, School of Physics and Electronic Information, Anhui Normal University Wuhu 241002 China
| | - Hui-Min Zhu
- Anhui Province Key Laboratory of Optoelectronic Material Science and Technology, School of Physics and Electronic Information, Anhui Normal University Wuhu 241002 China
| | - Hao Li
- Anhui Province Key Laboratory of Optoelectronic Material Science and Technology, School of Physics and Electronic Information, Anhui Normal University Wuhu 241002 China
| | - Kai Zhang
- Shandong Province Key Laboratory of Medical Physics and Image Processing Technology, School of Physics and Electronics, Shandong Normal University Jinan 250014 China
| | - Xianyi Zhang
- Anhui Province Key Laboratory of Optoelectronic Material Science and Technology, School of Physics and Electronic Information, Anhui Normal University Wuhu 241002 China
| | - Dong Yan
- Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University Wuhu 241002 China
| | - Xiu-Du Zhang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University Wuhu 241002 China
| | - Lili Lin
- Shandong Province Key Laboratory of Medical Physics and Image Processing Technology, School of Physics and Electronics, Shandong Normal University Jinan 250014 China
| | - Zhou Lu
- Anhui Province Key Laboratory of Optoelectronic Material Science and Technology, School of Physics and Electronic Information, Anhui Normal University Wuhu 241002 China
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3
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Tao S, Song Y, Ding S, He R, Shi Q, Hu F. Dendrobium officinale polysaccharide-based carrier to enhance photodynamic immunotherapy. Carbohydr Polym 2023; 317:121089. [PMID: 37364958 DOI: 10.1016/j.carbpol.2023.121089] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 05/31/2023] [Accepted: 06/01/2023] [Indexed: 06/28/2023]
Abstract
Photodynamic therapy (PDT) eradicates tumors via the generation of toxic reactive oxygen species (ROS) by activation of a photosensitizer (PS) with appropriate light. Local PDT toward tumors can trigger the immune response to inhibit distant tumors, but the immune response is usually insufficient. Herein, we used a biocompatible herb polysaccharide with immunomodulatory activity as the carrier of PS to enhance the immune inhibition of tumors after PDT. The Dendrobium officinale polysaccharide (DOP) is modified with hydrophobic cholesterol to serve as an amphiphilic carrier. The DOP itself can promote dendritic cell (DC) maturation. Meanwhile, TPA-3BCP are designed to be cationic aggregation-induced emission PS. The structure of one electron-donor linking to three electron-acceptors endows TPA-3BCP with high efficiency to produce ROS upon light irradiation. And the nanoparticles are designed with positively charged surfaces to capture antigens released after PDT, which can protect the antigens from degradation and improve the antigen-uptake efficiency by DCs. The combination of DOP-induced DC maturation and antigen capture-increased antigen-uptake efficiency by DCs significantly improves the immune response after DOP-based carrier-mediated PDT. Since DOP is extracted from the medicinal and edible Dendrobium officinale, the DOP-based carrier we designed is promising to be developed for enhanced photodynamic immunotherapy in clinic.
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Affiliation(s)
- Shengchang Tao
- Department of Pharmacy, The Tenth Affiliated Hospital of Southern Medical University (Dongguan People's Hospital), Dongguan 523059, China; Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangzhou 510515, China
| | - Yuchen Song
- Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangzhou 510515, China
| | - Shaobo Ding
- Department of Pharmacy, The Tenth Affiliated Hospital of Southern Medical University (Dongguan People's Hospital), Dongguan 523059, China
| | - Ruirong He
- Department of Pharmacy, The Tenth Affiliated Hospital of Southern Medical University (Dongguan People's Hospital), Dongguan 523059, China
| | - Qiankun Shi
- Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangzhou 510515, China
| | - Fang Hu
- Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangzhou 510515, China; Division of Laboratory Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China.
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Sarkar S, Au-Yeung KH, Kühne T, Waentig A, Ryndyk DA, Heine T, Cuniberti G, Feng X, Moresco F. Adsorption and reversible conformational change of a thiophene based molecule on Au(111). Sci Rep 2023; 13:10627. [PMID: 37391525 DOI: 10.1038/s41598-023-37661-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 06/25/2023] [Indexed: 07/02/2023] Open
Abstract
We present a low temperature scanning tunneling microscope investigation of a prochiral thiophene-based molecule that self-assembles forming islands with different domains on the Au(111) surface. In the domains, two different conformations of the single molecule are observed, depending on a slight rotation of two adjacent bromothiophene groups. Using voltage pulses from the tip, single molecules can be switched between the two conformations. The electronic states have been measured with scanning tunneling spectroscopy, showing that the electronic resonances are mainly localized at the same positions in both conformations. Density-functional theory calculations support the experimental results. Furthermore, we observe that on Ag(111), only one configuration is present and therefore the switching effect is suppressed.
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Affiliation(s)
- Suchetana Sarkar
- Center for Advancing Electronics Dresden, TU Dresden, 01062, Dresden, Germany
| | - Kwan Ho Au-Yeung
- Center for Advancing Electronics Dresden, TU Dresden, 01062, Dresden, Germany
| | - Tim Kühne
- Center for Advancing Electronics Dresden, TU Dresden, 01062, Dresden, Germany
| | - Albrecht Waentig
- Center for Advancing Electronics Dresden, TU Dresden, 01062, Dresden, Germany
- Chair of Molecular Functional Materials and Faculty of Chemistry and Food Chemistry, TU Dresden, 01062, Dresden, Germany
| | - Dmitry A Ryndyk
- Theoretical Chemistry, TU Dresden, 01062, Dresden, Germany
- Institute for Materials Science, TU Dresden, 01062, Dresden, Germany
| | - Thomas Heine
- Theoretical Chemistry, TU Dresden, 01062, Dresden, Germany
| | | | - Xinliang Feng
- Center for Advancing Electronics Dresden, TU Dresden, 01062, Dresden, Germany
- Chair of Molecular Functional Materials and Faculty of Chemistry and Food Chemistry, TU Dresden, 01062, Dresden, Germany
| | - Francesca Moresco
- Center for Advancing Electronics Dresden, TU Dresden, 01062, Dresden, Germany.
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Sobarzo PA, González A, Jessop IA, Hauyon RA, Medina J, García LE, Zarate X, González-Henríquez C, Schott E, Tundidor-Camba A, Terraza CA. Tetraphenylsilane-based oligo(azomethine)s containing 3,4-ethylenedioxythiophene units along their backbone: Optical, electronic, thermal properties and computational simulations. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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6
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Manian A, Lyskov I, Shaw RA, Russo SP. A first principles examination of phosphorescence. RSC Adv 2022; 12:25440-25448. [PMID: 36199319 PMCID: PMC9450115 DOI: 10.1039/d2ra03447f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 08/23/2022] [Indexed: 11/25/2022] Open
Abstract
This paper explores phosphorescence from a first principles standpoint, and examines the intricacies involved in calculating the spin-forbidden T 1 → S 0 transition dipole moment, to highlight that the mechanism is not as complicated to compute as it seems. Using gas phase acridine as a case study, we break down the formalism required to compute the phosphorescent spectra within both the Franck-Condon and Herzberg-Teller regimes by coupling the first triplet excited state up to the S 4 and T 4 states. Despite the first singlet excited state appearing as an L b state and not of nπ* character, the second order corrected rate constant was found to be 0.402 s-1, comparing well with experimental phosphorescent lifetimes of acridine derivatives. In showing only certain states are required to accurately describe the matrix elements as well as how to find these states, our calculations suggest that the nπ* state only weakly couples to the T 1 state. This suggest its importance hinges on its ability to quench fluorescence and exalt non-radiative mechanisms rather than its contribution to the transition dipole moment. A followup investigation into the T 1 → S 0 transition dipole moment's growth as a function of its coupling to other electronic states highlights that terms dominating the matrix element arise entirely from the inclusion of states with strong spin-orbit coupling terms. This means that while the expansion of the transition dipole moment can extend to include an infinite number of electronic states, only certain states need to be included.
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Affiliation(s)
- Anjay Manian
- ARC Centre of Excellence in Exciton Science, School of Science, RMIT University Melbourne 3000 Australia
| | - Igor Lyskov
- ARC Centre of Excellence in Exciton Science, School of Science, RMIT University Melbourne 3000 Australia
| | - Robert A Shaw
- Department of Chemistry, University of Sheffield Sheffield S3 7HF UK
| | - Salvy P Russo
- ARC Centre of Excellence in Exciton Science, School of Science, RMIT University Melbourne 3000 Australia
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7
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Younus M, Valandro S, Gobeze HB, Ahmed S, Schanze KS. Wavelength and Solvent Controlled Energy and Charge Transfer in Donor-Acceptor Substituted Platinum Acetylide Complexes. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.114303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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8
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Biesen L, Krenzer J, Nirmalananthan-Budau N, Resch-Genger U, Müller TJJ. Asymmetrically bridged aroyl- S, N-ketene acetal-based multichromophores with aggregation-induced tunable emission. Chem Sci 2022; 13:5374-5381. [PMID: 35655556 PMCID: PMC9093196 DOI: 10.1039/d2sc00415a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 04/11/2022] [Indexed: 12/28/2022] Open
Abstract
Asymmetrically bridged aroyl-S,N-ketene acetals and aroyl-S,N-ketene acetal multichromophores can be readily synthesized in consecutive three-, four-, or five-component syntheses in good to excellent yields by several successive Suzuki-couplings of aroyl-S,N-ketene acetals and bis(boronic)acid esters. Different aroyl-S,N-ketene acetals as well as linker molecules yield a library of 23 multichromophores with substitution and linker pattern-tunable emission properties. This allows control of different communication pathways between the chromophores and of aggregation-induced emission (AIE) and energy transfer (ET) properties, providing elaborate aggregation-based fluorescence switches. A library of 23 asymmetrically linked aroyl-S,N-ketene acetal solid-state emissive multichromophores accessed by one-pot multicomponent reactions exhibits AIE- and AIEE-active behavior as well as dual emission and potential energy transfer.![]()
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Affiliation(s)
- Lukas Biesen
- Institut für Organische Chemie und Makromolekulare Chemie, Heinrich-Heine-Universität Düsseldorf Universitätsstraße 1 D-40225 Düsseldorf Germany
| | - Julius Krenzer
- Institut für Organische Chemie und Makromolekulare Chemie, Heinrich-Heine-Universität Düsseldorf Universitätsstraße 1 D-40225 Düsseldorf Germany
| | - Nithiya Nirmalananthan-Budau
- Division Biophotonics, Bundesanstalt für Materialforschung und -prüfung (BAM), Department 1 Richard-Willstätter-Straße 11 D-12489 Berlin Germany
| | - Ute Resch-Genger
- Division Biophotonics, Bundesanstalt für Materialforschung und -prüfung (BAM), Department 1 Richard-Willstätter-Straße 11 D-12489 Berlin Germany
| | - Thomas J J Müller
- Institut für Organische Chemie und Makromolekulare Chemie, Heinrich-Heine-Universität Düsseldorf Universitätsstraße 1 D-40225 Düsseldorf Germany
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9
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Dimitriev OP. Dynamics of Excitons in Conjugated Molecules and Organic Semiconductor Systems. Chem Rev 2022; 122:8487-8593. [PMID: 35298145 DOI: 10.1021/acs.chemrev.1c00648] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The exciton, an excited electron-hole pair bound by Coulomb attraction, plays a key role in photophysics of organic molecules and drives practically important phenomena such as photoinduced mechanical motions of a molecule, photochemical conversions, energy transfer, generation of free charge carriers, etc. Its behavior in extended π-conjugated molecules and disordered organic films is very different and very rich compared with exciton behavior in inorganic semiconductor crystals. Due to the high degree of variability of organic systems themselves, the exciton not only exerts changes on molecules that carry it but undergoes its own changes during all phases of its lifetime, that is, birth, conversion and transport, and decay. The goal of this review is to give a systematic and comprehensive view on exciton behavior in π-conjugated molecules and molecular assemblies at all phases of exciton evolution with emphasis on rates typical for this dynamic picture and various consequences of the above dynamics. To uncover the rich variety of exciton behavior, details of exciton formation, exciton transport, exciton energy conversion, direct and reverse intersystem crossing, and radiative and nonradiative decay are considered in different systems, where these processes lead to or are influenced by static and dynamic disorder, charge distribution symmetry breaking, photoinduced reactions, electron and proton transfer, structural rearrangements, exciton coupling with vibrations and intermediate particles, and exciton dissociation and annihilation as well.
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Affiliation(s)
- Oleg P Dimitriev
- V. Lashkaryov Institute of Semiconductor Physics NAS of Ukraine, pr. Nauki 41, Kyiv 03028, Ukraine
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10
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Zhang Z, Kang M, Tan H, Song N, Li M, Xiao P, Yan D, Zhang L, Wang D, Tang BZ. The fast-growing field of photo-driven theranostics based on aggregation-induced emission. Chem Soc Rev 2022; 51:1983-2030. [PMID: 35226010 DOI: 10.1039/d1cs01138c] [Citation(s) in RCA: 126] [Impact Index Per Article: 63.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Photo-driven theranostics, also known as phototheranostics, relying on the diverse excited-state energy conversions of theranostic agents upon photoexcitation represents a significant branch of theranostics, which ingeniously integrate diagnostic imaging and therapeutic interventions into a single formulation. The combined merits of photoexcitation and theranostics endow photo-driven theranostics with numerous superior features. The applications of aggregation-induced emission luminogens (AIEgens), a particular category of fluorophores, in the field of photo-driven theranostics have been intensively studied by virtue of their versatile advantageous merits of favorable biocompatibility, tuneable photophysical properties, unique aggregation-enhanced theranostic (AET) features, ideal AET-favored on-site activation ability and ready construction of one-for-all multimodal theranostics. This review summarised the significant achievements of photo-driven theranostics based on AIEgens, which were detailedly elaborated and classified by their diverse theranostic modalities into three groups: fluorescence imaging-guided photodynamic therapy, photoacoustic imaging-guided photothermal therapy, and multi-modality theranostics. Particularly, the tremendous advantages and individual design strategies of AIEgens in pursuit of high-performance photosensitizing output, high photothermal conversion and multimodal function capability by adjusting the excited-state energy dissipation pathways are emphasized in each section. In addition to highlighting AIEgens as promising templates for modulating energy dissipation in the application of photo-driven theranostics, current challenges and opportunities in this field are also discussed.
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Affiliation(s)
- Zhijun Zhang
- Center for AIE Research, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Material Science and Engineering, Shenzhen University, Shenzhen 518060, China.
| | - Miaomiao Kang
- Center for AIE Research, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Material Science and Engineering, Shenzhen University, Shenzhen 518060, China.
| | - Hui Tan
- Pneumology Department, Shenzhen Children's Hospital, Shenzhen 518026, China
| | - Nan Song
- Center for AIE Research, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Material Science and Engineering, Shenzhen University, Shenzhen 518060, China.
| | - Meng Li
- Center for AIE Research, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Material Science and Engineering, Shenzhen University, Shenzhen 518060, China.
| | - Peihong Xiao
- Center for AIE Research, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Material Science and Engineering, Shenzhen University, Shenzhen 518060, China.
| | - Dingyuan Yan
- Center for AIE Research, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Material Science and Engineering, Shenzhen University, Shenzhen 518060, China.
| | - Liping Zhang
- Pneumology Department, Shenzhen Children's Hospital, Shenzhen 518026, China
| | - Dong Wang
- Center for AIE Research, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Material Science and Engineering, Shenzhen University, Shenzhen 518060, China.
| | - Ben Zhong Tang
- Shenzhen Institute of Aggregate Science and Technology, School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen, 2001 Longxiang Boulevard, Longgang District, Shenzhen City, Guangdong 518172, China.
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11
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Sun N, Wen X, Zhang S. Strategies to Improve Photodynamic Therapy Efficacy of Metal-Free Semiconducting Conjugated Polymers. Int J Nanomedicine 2022; 17:247-271. [PMID: 35082494 PMCID: PMC8786367 DOI: 10.2147/ijn.s337599] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 11/23/2021] [Indexed: 01/12/2023] Open
Abstract
Photodynamic therapy (PDT) is a noninvasive therapy for cancer and bacterial infection. Metal-free semiconducting conjugated polymers (SCPS) with good stability and optical and electrical properties are promising photosensitizers (PSs) for PDT compared with traditional small-molecule PSs. This review analyzes the latest progress of strategies to improve PDT effect of linear, planar, and three-dimensional SCPS, including improving solubility, adjusting conjugated structure, enhancing PS-doped SCPs, and combining therapies. Moreover, the current issues, such as hypoxia, low penetration, targeting and biosafety of SCPS, and corresponding strategies, are discussed. Furthermore, the challenges and potential opportunities on further improvement of PDT for SCPs are presented.
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Affiliation(s)
- Na Sun
- Department of Nuclear Medicine, XinQiao Hospital, Army Medical University, Chongqing, People's Republic of China
| | - Xue Wen
- School of Electronics, Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, People's Republic of China
| | - Song Zhang
- Department of Nuclear Medicine, XinQiao Hospital, Army Medical University, Chongqing, People's Republic of China
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12
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Wu W, Liu B. Modulating the optical properties and functions of organic molecules through polymerization. MATERIALS HORIZONS 2022; 9:99-111. [PMID: 34498024 DOI: 10.1039/d1mh01030a] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Organic functional materials with advanced optical properties have attracted much attention due to their broad applications, such as in light-emitting diodes, solar cells, anti-counterfeiting, photocatalysis, and even disease diagnosis and treatment. Recent research has revealed that many optical properties of organic molecules can be improved through simple polymerization. In this review, we discuss the phenomenon, mechanism, and impact of polymerization on the properties of materials, including the polymerization-induced spectral shift, polymerization-enhanced photosensitization, polymerization-enhanced two-photon absorption, polymerization-enhanced photocatalytic efficiency, polymerization-induced room temperature phosphorescence, polymerization-induced thermally activated delayed fluorescence, and polymerization-induced emission using specific examples with different applications. The new opportunities arising from polymerization in designing high performance optical materials are summarized in the future perspective.
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Affiliation(s)
- Wenbo Wu
- Institute of Molecular Aggregation Science, Tianjin University, Tianjin 300072, China.
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore.
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, China
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13
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Holt ED, Wang J, Winkel RW, Younus M, Schanze KS. Photophysics and solar cell application of a benzodithiophene conjugated polymer containing cyclometalated platinum units. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY 2021. [DOI: 10.1016/j.jpap.2021.100060] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
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14
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Loftus LM, Olson EC, Stewart DJ, Phillips AT, Arumugam K, Cooper TM, Haley JE, Grusenmeyer TA. Zn Coordination and the Identity of the Halide Ancillary Ligand Dramatically Influence the Excited-State Dynamics and Bimolecular Reactions of 2,3-Di(pyridin-2-yl)benzo[ g]quinoxaline. Inorg Chem 2021; 60:16570-16583. [PMID: 34662517 DOI: 10.1021/acs.inorgchem.1c02484] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The optical properties of coordination complexes with ligands containing nitrogen heterocycles have been extensively studied for decades. One subclass of these materials, metal complexes utilizing substituted pyrazines and quinoxalines as ligands, has been employed in a variety of photochemical applications ranging from photodynamic therapy to organic light-emitting diodes. A vast majority of this work focuses on characterization of the metal-to-ligand charge-transfer states in these metal complexes; however, literature reports rarely investigate the photophysics of the parent pyrazine or quinoxaline ligand or perform control experiments utilizing metal complexes that lack low-lying charge-transfer (CT) states in order to determine how metal-atom coordination influences the photophysical properties of the ligand. With this in mind, we examined the steady-state and time-resolved photophysics of 2,3-di(pyridin-2-yl)benzo[g]quinoxaline (dpb) and explored how the coordination of ZnX2 (X = Cl-, Br-, I-) affects the photophysical properties of dpb. In dpb, we find that the dominant mode of deactivation from the singlet excited state is intersystem crossing (ISC). Coordination of ZnX2 perturbs the relative energies of the ππ* and nπ* excited states of dpb, leading to drastically different rates of ISC as well as radiative and nonradiative decay in the [Zn(dpb)X2] complexes compared to dpb. These differences in the rates change the dominant singlet-excited-state decay pathway from ISC in dpb to a mixture of ISC and fluorescence in [Zn(dpb)Cl2] and [Zn(dpb)Br2] and to nonradiative decay in [Zn(dpb)I2]. Coordination of ZnX2 and the choice of the halide ligand also have profound effects on the rate constants for excited-state bimolecular reactions, including triplet-triplet annihilation and oxygen quenching. These results demonstrate that metal coordination, even in complexes lacking low-lying CT states, and the choice of the ancillary ligand can dramatically alter the photophysical properties of chromophores containing nitrogen heterocycles.
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Affiliation(s)
- Lauren M Loftus
- Materials and Manufacturing Directorate, Functional Materials Division, Air Force Research Laboratory, Wright-Patterson AFB, Ohio 45433-7750, United States.,General Dynamics Information Technology, 5100 Springfield Pike, Dayton, Ohio 45431, United States
| | - Emma C Olson
- Materials and Manufacturing Directorate, Functional Materials Division, Air Force Research Laboratory, Wright-Patterson AFB, Ohio 45433-7750, United States.,Southwestern Ohio Council for Higher Education, Dayton, Ohio 45420, United States
| | - David J Stewart
- Materials and Manufacturing Directorate, Functional Materials Division, Air Force Research Laboratory, Wright-Patterson AFB, Ohio 45433-7750, United States
| | - Alexis T Phillips
- Materials and Manufacturing Directorate, Functional Materials Division, Air Force Research Laboratory, Wright-Patterson AFB, Ohio 45433-7750, United States.,Southwestern Ohio Council for Higher Education, Dayton, Ohio 45420, United States
| | - Kuppuswamy Arumugam
- Wright State University, Department of Chemistry, 3640 Colonel Glenn Highway, Dayton, Ohio 45435, United States
| | - Thomas M Cooper
- Materials and Manufacturing Directorate, Functional Materials Division, Air Force Research Laboratory, Wright-Patterson AFB, Ohio 45433-7750, United States
| | - Joy E Haley
- Materials and Manufacturing Directorate, Functional Materials Division, Air Force Research Laboratory, Wright-Patterson AFB, Ohio 45433-7750, United States
| | - Tod A Grusenmeyer
- Materials and Manufacturing Directorate, Functional Materials Division, Air Force Research Laboratory, Wright-Patterson AFB, Ohio 45433-7750, United States
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15
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Gao H, Yu R, Ma Z, Gong Y, Zhao B, Lv Q, Tan Z. Recent advances of organometallic complexes in emerging photovoltaics. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20210592] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Huaizhi Gao
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, State Key Laboratory of Organic‐Inorganic Composites Beijing University of Chemical Technology Beijing China
| | - Runnan Yu
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, State Key Laboratory of Organic‐Inorganic Composites Beijing University of Chemical Technology Beijing China
| | - Zongwen Ma
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, State Key Laboratory of Organic‐Inorganic Composites Beijing University of Chemical Technology Beijing China
| | - Yongshuai Gong
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, State Key Laboratory of Organic‐Inorganic Composites Beijing University of Chemical Technology Beijing China
| | - Biao Zhao
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, State Key Laboratory of Organic‐Inorganic Composites Beijing University of Chemical Technology Beijing China
| | - Qianglong Lv
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, State Key Laboratory of Organic‐Inorganic Composites Beijing University of Chemical Technology Beijing China
| | - Zhan'ao Tan
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, State Key Laboratory of Organic‐Inorganic Composites Beijing University of Chemical Technology Beijing China
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16
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Meng FL, Qian HL, Yan XP. Conjugation-regulating synthesis of high photosensitizing activity porphyrin-based covalent organic frameworks for photodynamic inactivation of bacteria. Talanta 2021; 233:122536. [PMID: 34215039 DOI: 10.1016/j.talanta.2021.122536] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Revised: 05/11/2021] [Accepted: 05/15/2021] [Indexed: 12/20/2022]
Abstract
Preparation of porphyrin-based covalent organic frameworks (Por-COFs) with high photosensitizing activity for photodynamic inactivation of bacteria is of great challenge, but significant for economy and human health. Herein, we show a conjugation-regulating strategy to design and synthesize Por-COFs with high photosensitizing activity for the photodynamic inactivation of bacteria. Terephthalaldehyde (Da), 2,5-Dihydroxyterephthalaldehyde (Dha), and 2,5-Diethoxyterephthalaldehyde (Deta) with different conjugation degrees are selected to condense with 5,10,15,20-Tetrakis(4-aminophenyl)porphyrin (Tph) to synthesize COF-366, DhaTph, and JNU-2, respectively. The higher conjugation of Dha and Deta than Da leads to the higher conjugation of DhaTph and JNU-2, respectively. Moreover, the hydroxyl group in Dha and the ethoxy group in Deta further expand the conjugation of DhaTph and JNU-2 via the formation of intralayer extended π-cloud delocalization and p-π conjunction, respectively. The extension of conjugation for DhaTph and JNU-2 results in the increase of intersystem crossing process and significantly improves their photosensitizing activity. Furthermore, JNU-2 with the highest photosensitizing activity exhibits superior antibacterial effects toward Staphylococcus aureus (99.1%) and Escherichia coli (96.8%). This study offers a new conjugation-regulating strategy for designing high photosensitizing activity of Por-COFs for the inactivation of bacteria.
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Affiliation(s)
- Fan-Lin Meng
- Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, China
| | - Hai-Long Qian
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122, China; International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, 214122, China; Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, China.
| | - Xiu-Ping Yan
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122, China; International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, 214122, China; Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, China; Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China
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17
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Hasegawa R, Iwakiri S, Kubo Y. Synthesis and triplet sensitization of bis(arylselanyl)BOPHYs; potential application in triplet–triplet annihilation upconversion. NEW J CHEM 2021. [DOI: 10.1039/d1nj00721a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bis(arylselanyl)BOPHYs 1 and 2 were prepared as novel triplet photosensitizers, TTA-UC behavior of 1 with 9,10-diphenylanthracene being investigated.
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Affiliation(s)
- Ryohei Hasegawa
- Department of Applied Chemistry
- Graduate School of Urban Environmental Sciences
- Tokyo Metropolitan University
- Hachioji
- Japan
| | - Shinji Iwakiri
- Department of Applied Chemistry
- Graduate School of Urban Environmental Sciences
- Tokyo Metropolitan University
- Hachioji
- Japan
| | - Yuji Kubo
- Department of Applied Chemistry
- Graduate School of Urban Environmental Sciences
- Tokyo Metropolitan University
- Hachioji
- Japan
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18
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Hayashi Y, Morimoto A, Maeda T, Enoki T, Ooyama Y, Matsui Y, Ikeda H, Yagi S. Synthesis of novel π-extended D–A–D-type dipyrido[3,2- a:2′,3′- c]phenazine derivatives and their photosensitized singlet oxygen generation. NEW J CHEM 2021. [DOI: 10.1039/d0nj05526c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Electron donor–acceptor–donor (D–A–D) π-conjugated molecules based on dipyrido[3,2-a:2′,3′-c]phenazine (dppz) were developed as photosensitizers for singlet oxygen generation.
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Affiliation(s)
- Yuichiro Hayashi
- Department of Applied Chemistry, Graduate School of Engineering
- Osaka Prefecture University
- Japan
| | - Ami Morimoto
- Department of Applied Chemistry, Graduate School of Engineering
- Osaka Prefecture University
- Japan
| | - Takeshi Maeda
- Department of Applied Chemistry, Graduate School of Engineering
- Osaka Prefecture University
- Japan
| | - Toshiaki Enoki
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University
- Japan
| | - Yousuke Ooyama
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University
- Japan
| | - Yasunori Matsui
- Department of Applied Chemistry, Graduate School of Engineering
- Osaka Prefecture University
- Japan
| | - Hiroshi Ikeda
- Department of Applied Chemistry, Graduate School of Engineering
- Osaka Prefecture University
- Japan
| | - Shigeyuki Yagi
- Department of Applied Chemistry, Graduate School of Engineering
- Osaka Prefecture University
- Japan
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19
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Han Q, Lau JW, Do TC, Zhang Z, Xing B. Near-Infrared Light Brightens Bacterial Disinfection: Recent Progress and Perspectives. ACS APPLIED BIO MATERIALS 2020; 4:3937-3961. [DOI: 10.1021/acsabm.0c01341] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Qinyu Han
- Division of Chemistry and Biological Chemistry, School of Physical & Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Jun Wei Lau
- Division of Chemistry and Biological Chemistry, School of Physical & Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Thang Cong Do
- Division of Chemistry and Biological Chemistry, School of Physical & Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Zhijun Zhang
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Bengang Xing
- Division of Chemistry and Biological Chemistry, School of Physical & Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637549, Singapore
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20
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Gundogan AS, Jagadesan P, Schanze KS. Photophysics of Oligothiophenes End‐Capped with Platinum(II) Auxochromes. CHEMPHOTOCHEM 2020. [DOI: 10.1002/cptc.202000123] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ali S. Gundogan
- Department of Chemistry University of Texas at San Antonio San Antonio 78249, TX United States
| | - Pradeepkumar Jagadesan
- Department of Chemistry University of Texas at San Antonio San Antonio 78249, TX United States
| | - Kirk S. Schanze
- Department of Chemistry University of Texas at San Antonio San Antonio 78249, TX United States
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21
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Li WJ, Hu Z, Xu L, Wang XQ, Wang W, Yin GQ, Zhang DY, Sun Z, Li X, Sun H, Yang HB. Rotaxane-Branched Dendrimers with Enhanced Photosensitization. J Am Chem Soc 2020; 142:16748-16756. [PMID: 32869633 DOI: 10.1021/jacs.0c07292] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
During the past few decades, fabrication of functional rotaxane-branched dendrimers has become one of the most attractive yet challenging topics within supramolecular chemistry and materials science. Herein, we present the successful fabrication of a family of new rotaxane-branched dendrimers containing up to 21 platinum atoms and 42 photosensitizer moieties through an efficient and controllable divergent approach. Notably, the photosensitization efficiencies of these rotaxane-branched dendrimers gradually increased with the increase of dendrimer generation. For example, third-generation rotaxane-branched dendrimer PG3 revealed 13.3-fold higher 1O2 generation efficiency than its corresponding monomer AN. The enhanced 1O2 generation efficiency was attributed to the enhancement of intersystem crossing (ISC) through the simple and efficient incorporation of multiple heavy atoms and photosensitizer moieties on the axles and wheels of the rotaxane units, respectively, which has been validated by UV-visible and fluorescence techniques, time-dependent density functional theory calculations, photolysis model reactions, and apparent activation energy calculations. Therefore, we develop a new promising platform of rotaxane-branched dendrimers for the preparation of effective photosensitizers.
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Affiliation(s)
- Wei-Jian Li
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes & Chang-Kung Chuang Institute, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai 200062, P.R. China
| | - Zhubin Hu
- State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, 500 Dongchuan Road, Shanghai 200241, P.R. China
| | - Lin Xu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes & Chang-Kung Chuang Institute, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai 200062, P.R. China
| | - Xu-Qing Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes & Chang-Kung Chuang Institute, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai 200062, P.R. China
| | - Wei Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes & Chang-Kung Chuang Institute, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai 200062, P.R. China
| | - Guang-Qiang Yin
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes & Chang-Kung Chuang Institute, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai 200062, P.R. China.,College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518055, P.R. China
| | - Dan-Yang Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes & Chang-Kung Chuang Institute, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai 200062, P.R. China
| | - Zhenrong Sun
- State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, 500 Dongchuan Road, Shanghai 200241, P.R. China
| | - Xiaopeng Li
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518055, P.R. China
| | - Haitao Sun
- State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, 500 Dongchuan Road, Shanghai 200241, P.R. China
| | - Hai-Bo Yang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes & Chang-Kung Chuang Institute, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai 200062, P.R. China
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22
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Mihaly JJ, Phillips AT, Stewart DJ, Marsh ZM, McCleese CL, Haley JE, Zeller M, Grusenmeyer TA, Gray TG. Synthesis and photophysics of gold(i) alkynyls bearing a benzothiazole-2,7-fluorenyl moiety: a comparative study analyzing influence of ancillary ligand, bridging moiety, and number of metal centers on photophysical properties. Phys Chem Chem Phys 2020; 22:11915-11927. [PMID: 32409811 DOI: 10.1039/d0cp01539c] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Three new gold(i) alkynyl complexes (Au-ABTF(0-2)) containing a benzothiazole fluorenyl moiety, with either an organic phosphine or N-heterocyclic carbene as ancillary ligand, have been synthesized and photophysically characterized. All three complexes display highly structured ground-state absorption and luminescence spectra. Dual-luminescence is observed in all three complexes at room temperature in toluene after three freeze-pump-thaw cycles. The phosphine complexes (Au-ABTF(0-1)) exhibit similar photophysics with fluorescent quantum yields ∼0.40, triplet-state quantum yields ∼0.50, and fluorescent lifetimes ∼300 ps. The carbene complex Au-ABTF2 displays different behavior; having a fluorescent quantum yield of 0.23, a triplet-state quantum yield of 0.61, and a fluorescent lifetime near 200 ps, demonstrating that the ancillary ligand alters excited-state dynamics. The compounds exhibit strong (on the order of 105 M-1 cm-1) and positive excited-state absorption in both their singlet and triplet excited states spanning the visible region. Delayed fluorescence resulting from triplet-triplet annihilation is also observed in freeze-pump-thaw deaerated samples of all the complexes in toluene. DFT calculations (both static and time-resolved) agree with the photophysical data where phosphine complexes have slightly larger S1-T2 energy gaps (0.28 eV and 0.26 eV) relative to the carbene complex (0.21 eV). Comparison of the photophysical properties of Au-ABTF(0-2) to previously published dinuclear gold(i) complexes and mononuclear gold(i) aryl complexes bearing the same benzothiazole-2,7-fluorenyl moiety are made. Structure-property relationships regarding ancillary ligand, bridging moiety, and number of metal centers are drawn.
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Affiliation(s)
- Joseph J Mihaly
- Department of Chemistry, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, USA.
| | - Alexis T Phillips
- Air Force Research Laboratory, Materials and Manufacturing Directorate, Wright-Patterson Air Force Base, Dayton, Ohio 45433, USA and Southwestern Ohio Council for Higher Education, Dayton, Ohio 45420, USA
| | - David J Stewart
- Air Force Research Laboratory, Materials and Manufacturing Directorate, Wright-Patterson Air Force Base, Dayton, Ohio 45433, USA and General Dynamics Information Technology, 5000 Springfield Pike, Dayton, Ohio 45431, USA
| | - Zachary M Marsh
- Air Force Research Laboratory, Materials and Manufacturing Directorate, Wright-Patterson Air Force Base, Dayton, Ohio 45433, USA and Azimuth Corporation, 4027 Colonel Glenn Hwy. Suite 230, Beavercreek, OH 45431, USA
| | - Christopher L McCleese
- Air Force Research Laboratory, Materials and Manufacturing Directorate, Wright-Patterson Air Force Base, Dayton, Ohio 45433, USA and General Dynamics Information Technology, 5000 Springfield Pike, Dayton, Ohio 45431, USA
| | - Joy E Haley
- Air Force Research Laboratory, Materials and Manufacturing Directorate, Wright-Patterson Air Force Base, Dayton, Ohio 45433, USA
| | - Matthias Zeller
- Department of Chemistry, Purdue University, West Lafayette Indiana, 47907, USA
| | - Tod A Grusenmeyer
- Air Force Research Laboratory, Materials and Manufacturing Directorate, Wright-Patterson Air Force Base, Dayton, Ohio 45433, USA
| | - Thomas G Gray
- Department of Chemistry, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, USA.
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23
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Mihaly JJ, Phillips AT, Malloy JT, Marsh ZM, Zeller M, Haley JE, de La Harpe K, Grusenmeyer TA, Gray TG. Synthesis and Photophysical Properties of Laterally Asymmetric Digold(I) Alkynyls and Triazolyl: Ancillary Ligand and Organic Functionality Dictate Excited-State Dynamics. Organometallics 2020. [DOI: 10.1021/acs.organomet.9b00768] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Joseph J. Mihaly
- Department of Chemistry, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
| | - Alexis T. Phillips
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, Dayton, Ohio 45433, United States
- Southwestern Ohio Council for Higher Education, Dayton, Ohio 45420, United States
| | - Jacob T. Malloy
- Department of Physics, United States Air Force Academy, U.S. Air Force Academy, Colorado 80840, United States
| | - Zachary M. Marsh
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, Dayton, Ohio 45433, United States
- Azimuth Corporation, 4027 Colonel Glenn Highway, Suite 230, Beavercreek, Ohio 45431, United States
| | - Matthias Zeller
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Joy E. Haley
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, Dayton, Ohio 45433, United States
| | - Kimberly de La Harpe
- Department of Physics, United States Air Force Academy, U.S. Air Force Academy, Colorado 80840, United States
| | - Tod A. Grusenmeyer
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, Dayton, Ohio 45433, United States
| | - Thomas G. Gray
- Department of Chemistry, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
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24
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Yang Z, Yin W, Zhang S, Shah I, Zhang B, Zhang S, Li Z, Lei Z, Ma H. Synthesis of AIE-Active Materials with Their Applications for Antibacterial Activity, Specific Imaging of Mitochondrion and Image-Guided Photodynamic Therapy. ACS APPLIED BIO MATERIALS 2020; 3:1187-1196. [DOI: 10.1021/acsabm.9b01094] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Zengming Yang
- Key Laboratory of Eco-Environment-Related Polymer Materials Ministry of Education, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Weidong Yin
- Key Laboratory of Eco-Environment-Related Polymer Materials Ministry of Education, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Shaoxiong Zhang
- Key Laboratory of Eco-Environment-Related Polymer Materials Ministry of Education, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Imran Shah
- Key Laboratory of Eco-Environment-Related Polymer Materials Ministry of Education, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Bo Zhang
- Key Laboratory of Eco-Environment-Related Polymer Materials Ministry of Education, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Shengjun Zhang
- Key Laboratory of Eco-Environment-Related Polymer Materials Ministry of Education, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Zhao Li
- Key Laboratory of Eco-Environment-Related Polymer Materials Ministry of Education, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Ziqiang Lei
- Key Laboratory of Eco-Environment-Related Polymer Materials Ministry of Education, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Hengchang Ma
- Key Laboratory of Eco-Environment-Related Polymer Materials Ministry of Education, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
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25
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Jin Y, Zhang Y, Liu Y, Xue J, Li W, Qiao J, Zhang F. Limitations and Perspectives on Triplet-Material-Based Organic Photovoltaic Devices. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1900690. [PMID: 30957919 DOI: 10.1002/adma.201900690] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 02/27/2019] [Indexed: 06/09/2023]
Abstract
Organic photovoltaic cells (OPVs) have attracted broad attention and become a very energetic field after the emergence of nonfullerene acceptors. Long-lifetime triplet excitons are expected to be good candidates for efficiently harvesting a photocurrent. Parallel with the development of OPVs based on singlet materials (S-OPVs), the potential of triplet materials as photoactive layers has been explored. However, so far, OPVs employing triplet materials in a bulk heterojunction have not exhibited better performance than S-OPVs. Here, the recent progress of representative OPVs based on triplet materials (T-OPVs) is briefly summarized. Based on that, the performance limitations of T-OPVs are analyzed. The shortage of desired triplet materials with favorable optoelectronic properties for OPVs, the tradeoff between long lifetime and high binding energy of triplet excitons, as well as the low charge mobility in most triplet materials are crucial issues restraining the efficiencies of T-OPVs. To overcome these limitations, first, novel materials with desired optoelectronic properties are urgently demanded; second, systematic investigation on the contribution and dynamics of triplet excitons in T-OPVs is necessary; third, close multidisciplinary collaboration is required, as proved by the development of S-OPVs.
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Affiliation(s)
- Yingzhi Jin
- Department of Physics, Chemistry and Biology, Linköping University, Linköping, SE-581 83, Sweden
| | - Yanxin Zhang
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Yanfeng Liu
- Department of Physics, Chemistry and Biology, Linköping University, Linköping, SE-581 83, Sweden
| | - Jie Xue
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Weiwei Li
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Juan Qiao
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Fengling Zhang
- Department of Physics, Chemistry and Biology, Linköping University, Linköping, SE-581 83, Sweden
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26
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Wang B, Queenan BN, Wang S, Nilsson KPR, Bazan GC. Precisely Defined Conjugated Oligoelectrolytes for Biosensing and Therapeutics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1806701. [PMID: 30698856 DOI: 10.1002/adma.201806701] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 11/25/2018] [Indexed: 06/09/2023]
Abstract
Conjugated oligoelectrolytes (COEs) are a relatively new class of synthetic organic molecules with, as of yet, untapped potential for use in organic optoelectronic devices and bioelectronic systems. COEs also offer a novel molecular approach to biosensing, bioimaging, and disease therapy. Substantial progress has been made in the past decade at the intersection of chemistry, materials science, and the biological sciences developing COEs and their polymer analogues, namely, conjugated polyelectrolytes (CPEs), into synthetic systems with biological and biomedical utility. CPEs have traditionally attracted more attention in arenas of sensing, imaging, and therapy. However, the precisely defined molecular structures and interactions of COEs offer potential key advantages over CPEs, including higher reliability and fluorescence quantum efficiency, larger diversity of subcellular targeting strategies, and improved selectivity to biomolecules. Here, the unique-and sometimes overlooked-properties of COEs are discussed and the noticeable progress in their use for biological sensing, imaging, and therapy is reviewed.
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Affiliation(s)
- Bing Wang
- Center for Polymers and Organic Solids, Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA, 93106, USA
| | - Bridget N Queenan
- Department of Mechanical Engineering, Neuroscience Research Institute, University of California, Santa Barbara, CA, 93106, USA
| | - Shu Wang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - K Peter R Nilsson
- Division of Chemistry, Department of Physics, Chemistry and Biology, Linköping University, Linköping, SE, -581 83, Sweden
| | - Guillermo C Bazan
- Center for Polymers and Organic Solids, Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA, 93106, USA
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27
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He T, Ren C, Luo Y, Wang Q, Li J, Lin X, Ye C, Hu W, Zhang J. Water-soluble chiral tetrazine derivatives: towards the application of circularly polarized luminescence from upper-excited states to photodynamic therapy. Chem Sci 2019; 10:4163-4168. [PMID: 31057744 PMCID: PMC6471655 DOI: 10.1039/c9sc00264b] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Accepted: 03/07/2019] [Indexed: 12/29/2022] Open
Abstract
A new family of water-soluble chiral tetrazine derivatives 1 and 2 is reported. Spectroscopic studies reveal that the derivatives violate Kasha's rule and emit from their upper-excited states (S n , n > 1). The transition assignments are supported by time-dependent density functional theory calculations. More importantly, both chromophores exhibit anisotropy factors on the order of ∼10-3 to 10-4 for circular dichroism and circularly polarized luminescence (CPL) from upper-excited states. Additionally, the nonplanar geometry of the derivatives induces a significant yield of triplet excited states. Transient absorption spectroscopic measurements reveal high triplet quantum yields of ∼86% for 1 and ∼81% for 2. Through in vitro studies, we demonstrate that the derivatives can be used as photodynamic therapy (PDT) agents, providing a highly efficient form of cancer therapy. This study is the first demonstration of simple organic molecules with CPL from upper-excited states and efficient PDT.
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Affiliation(s)
- Tingchao He
- College of Physics and Energy , Shenzhen University , Shenzhen 518060 , China
| | - Can Ren
- College of Physics and Energy , Shenzhen University , Shenzhen 518060 , China
| | - Yu Luo
- College of Chemistry and Environmental Engineering , Shenzhen University , Shenzhen 518060 , China .
| | - Qi Wang
- Key Laboratory of Flexible Electronics (KLOFE) , Institute of Advanced Materials (IAM) , Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) , Nanjing Tech University (NanjingTech) , Nanjing 211816 , China .
| | - Junzi Li
- College of Physics and Energy , Shenzhen University , Shenzhen 518060 , China
| | - Xiaodong Lin
- College of Physics and Energy , Shenzhen University , Shenzhen 518060 , China
| | - Chuanxiang Ye
- College of Physics and Energy , Shenzhen University , Shenzhen 518060 , China
| | - Wenbo Hu
- Key Laboratory of Flexible Electronics (KLOFE) , Institute of Advanced Materials (IAM) , Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) , Nanjing Tech University (NanjingTech) , Nanjing 211816 , China .
| | - Junmin Zhang
- College of Chemistry and Environmental Engineering , Shenzhen University , Shenzhen 518060 , China .
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28
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Stewart DJ, Shi J, Naranjo TR, Grusenmeyer TA, Artz JM, McCleese CL, O'Donnell RM, Cooper TM, Shensky WM, Haley JE. Manipulating triplet states: tuning energies, absorption, lifetimes, and annihilation rates in anthanthrene derivatives. Phys Chem Chem Phys 2018; 20:28412-28418. [PMID: 30403238 DOI: 10.1039/c8cp06048g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The photophysical properties of anthanthrene, four anthanthrene derivatives containing varying phenyl and p-tBu-phenyl substituents, and two anthanthrones with phenyl and p-tBu-phenyl substituents are examined. In general, as the anthanthrenes and anthanthrones become more substituted, red-shifts are observed in the peak maxima of the ground- and excited-state absorption and fluorescence spectra. The anthanthrones have large (>0.8) intersystem crossing (ISC) quantum yields (ΦT) likely caused by nπ* character in the ground or excited states. A bromo-substituted anthanthrene has a unity ISC yield due to an ISC rate constant of 2.5 × 1010 s-1 caused by heavy-atom induced, spin-orbit coupling. This leads to low fluorescence quantum yields (ΦF) in these three derivatives. The parent anthanthrene and remaining derivatives behave much differently. All have ΦF values from 0.58-0.84 with lower ΦT values as radiative decay outcompetes ISC. The anthanthrones have remarkable excited-state absorption with strong, broad transitions across the visible region with weaker transitions extending to nearly two μm. The anthanthrenes have very similar-shaped, broad transitions in the visible which can be shifted ∼60 nm by controlling the substituents. The triplet lifetimes range from 31-1200 μs and increase as the ISC yields decrease; the bromo-substituted anthanthrene is the shortest, followed by the anthanthrones then the other anthanthrenes. The rate of triplet-triplet annihilation is also affected by the presence of substituents; as the amount of steric bulk is increased, the rate of annihilation decreases.
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Affiliation(s)
- David J Stewart
- Air Force Research Laboratory, Materials and Manufacturing Directorate, Functional Materials Division, Wright-Patterson AFB, Ohio 45433-7750, USA.
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29
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Liu S, Zhang H, Li Y, Liu J, Du L, Chen M, Kwok RTK, Lam JWY, Phillips DL, Tang BZ. Strategies to Enhance the Photosensitization: Polymerization and the Donor–Acceptor Even–Odd Effect. Angew Chem Int Ed Engl 2018; 57:15189-15193. [DOI: 10.1002/anie.201810326] [Citation(s) in RCA: 143] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Indexed: 12/30/2022]
Affiliation(s)
- Shunjie Liu
- Department of ChemistryHong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and econstructionInstitute for Advanced Studgy and Department of Chemical and Biological EngineeringThe Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong China
- HKUST-Shenzhen Research Institute No.9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan Shenzhen 518057 China
| | - Haoke Zhang
- Department of ChemistryHong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and econstructionInstitute for Advanced Studgy and Department of Chemical and Biological EngineeringThe Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong China
- HKUST-Shenzhen Research Institute No.9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan Shenzhen 518057 China
| | - Yuanyuan Li
- Department of ChemistryHong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and econstructionInstitute for Advanced Studgy and Department of Chemical and Biological EngineeringThe Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong China
- HKUST-Shenzhen Research Institute No.9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan Shenzhen 518057 China
| | - Junkai Liu
- Department of ChemistryHong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and econstructionInstitute for Advanced Studgy and Department of Chemical and Biological EngineeringThe Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong China
- HKUST-Shenzhen Research Institute No.9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan Shenzhen 518057 China
| | - Lili Du
- Department of ChemistryThe University of Hong Kong Pokfulam Road Hong Kong SAR China
- Institute of Life SciencesJiangsu University Zhenjiang 212013 China
| | - Ming Chen
- Department of ChemistryHong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and econstructionInstitute for Advanced Studgy and Department of Chemical and Biological EngineeringThe Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong China
- HKUST-Shenzhen Research Institute No.9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan Shenzhen 518057 China
| | - Ryan T. K. Kwok
- Department of ChemistryHong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and econstructionInstitute for Advanced Studgy and Department of Chemical and Biological EngineeringThe Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong China
- HKUST-Shenzhen Research Institute No.9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan Shenzhen 518057 China
| | - Jacky W. Y. Lam
- Department of ChemistryHong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and econstructionInstitute for Advanced Studgy and Department of Chemical and Biological EngineeringThe Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong China
- HKUST-Shenzhen Research Institute No.9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan Shenzhen 518057 China
| | - David Lee Phillips
- Department of ChemistryThe University of Hong Kong Pokfulam Road Hong Kong SAR China
| | - Ben Zhong Tang
- Department of ChemistryHong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and econstructionInstitute for Advanced Studgy and Department of Chemical and Biological EngineeringThe Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong China
- HKUST-Shenzhen Research Institute No.9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan Shenzhen 518057 China
- Center for Aggregation-Induced EmissionSCUT-HKUST Joint Research InstituteState Key Laboratory of Luminescent Materials and DevicesSouth China University of Technology Guangzhou 510640 China
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30
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Liu S, Zhang H, Li Y, Liu J, Du L, Chen M, Kwok RTK, Lam JWY, Phillips DL, Tang BZ. Strategies to Enhance the Photosensitization: Polymerization and the Donor–Acceptor Even–Odd Effect. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201810326] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Shunjie Liu
- Department of ChemistryHong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and econstructionInstitute for Advanced Studgy and Department of Chemical and Biological EngineeringThe Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong China
- HKUST-Shenzhen Research Institute No.9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan Shenzhen 518057 China
| | - Haoke Zhang
- Department of ChemistryHong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and econstructionInstitute for Advanced Studgy and Department of Chemical and Biological EngineeringThe Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong China
- HKUST-Shenzhen Research Institute No.9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan Shenzhen 518057 China
| | - Yuanyuan Li
- Department of ChemistryHong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and econstructionInstitute for Advanced Studgy and Department of Chemical and Biological EngineeringThe Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong China
- HKUST-Shenzhen Research Institute No.9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan Shenzhen 518057 China
| | - Junkai Liu
- Department of ChemistryHong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and econstructionInstitute for Advanced Studgy and Department of Chemical and Biological EngineeringThe Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong China
- HKUST-Shenzhen Research Institute No.9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan Shenzhen 518057 China
| | - Lili Du
- Department of ChemistryThe University of Hong Kong Pokfulam Road Hong Kong SAR China
- Institute of Life SciencesJiangsu University Zhenjiang 212013 China
| | - Ming Chen
- Department of ChemistryHong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and econstructionInstitute for Advanced Studgy and Department of Chemical and Biological EngineeringThe Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong China
- HKUST-Shenzhen Research Institute No.9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan Shenzhen 518057 China
| | - Ryan T. K. Kwok
- Department of ChemistryHong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and econstructionInstitute for Advanced Studgy and Department of Chemical and Biological EngineeringThe Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong China
- HKUST-Shenzhen Research Institute No.9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan Shenzhen 518057 China
| | - Jacky W. Y. Lam
- Department of ChemistryHong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and econstructionInstitute for Advanced Studgy and Department of Chemical and Biological EngineeringThe Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong China
- HKUST-Shenzhen Research Institute No.9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan Shenzhen 518057 China
| | - David Lee Phillips
- Department of ChemistryThe University of Hong Kong Pokfulam Road Hong Kong SAR China
| | - Ben Zhong Tang
- Department of ChemistryHong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and econstructionInstitute for Advanced Studgy and Department of Chemical and Biological EngineeringThe Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong China
- HKUST-Shenzhen Research Institute No.9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan Shenzhen 518057 China
- Center for Aggregation-Induced EmissionSCUT-HKUST Joint Research InstituteState Key Laboratory of Luminescent Materials and DevicesSouth China University of Technology Guangzhou 510640 China
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31
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Haque A, Al-Balushi RA, Al-Busaidi IJ, Khan MS, Raithby PR. Rise of Conjugated Poly-ynes and Poly(Metalla-ynes): From Design Through Synthesis to Structure-Property Relationships and Applications. Chem Rev 2018; 118:8474-8597. [PMID: 30112905 DOI: 10.1021/acs.chemrev.8b00022] [Citation(s) in RCA: 109] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Conjugated poly-ynes and poly(metalla-ynes) constitute an important class of new materials with potential application in various domains of science. The key factors responsible for the diverse usage of these materials is their intriguing and tunable chemical and photophysical properties. This review highlights fascinating advances made in the field of conjugated organic poly-ynes and poly(metalla-ynes) incorporating group 4-11 metals. This includes several important aspects of conjugated poly-ynes viz. synthetic protocols, bonding, electronic structure, nature of luminescence, structure-property relationships, diverse applications, and concluding remarks. Furthermore, we delineated the future directions and challenges in this particular area of research.
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Affiliation(s)
- Ashanul Haque
- Department of Chemistry , Sultan Qaboos University , P.O. Box 36, Al-Khod 123 , Sultanate of Oman
| | - Rayya A Al-Balushi
- Department of Chemistry , Sultan Qaboos University , P.O. Box 36, Al-Khod 123 , Sultanate of Oman
| | - Idris Juma Al-Busaidi
- Department of Chemistry , Sultan Qaboos University , P.O. Box 36, Al-Khod 123 , Sultanate of Oman
| | - Muhammad S Khan
- Department of Chemistry , Sultan Qaboos University , P.O. Box 36, Al-Khod 123 , Sultanate of Oman
| | - Paul R Raithby
- Department of Chemistry , University of Bath , Claverton Down , Bath BA2 7AY , U.K
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32
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Sun H, Lv F, Liu L, Gu Q, Wang S. Conjugated Polymer Materials for Photothermal Therapy. ADVANCED THERAPEUTICS 2018. [DOI: 10.1002/adtp.201800057] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Han Sun
- Beijing National Laboratory for Molecular Sciences; Key Laboratory of Organic Solids; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100910 P. R. China
- College of Chemistry; University of Chinese Academy of Sciences; Beijing 100049 P. R. China
| | - Fengting Lv
- Beijing National Laboratory for Molecular Sciences; Key Laboratory of Organic Solids; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100910 P. R. China
| | - Libing Liu
- Beijing National Laboratory for Molecular Sciences; Key Laboratory of Organic Solids; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100910 P. R. China
| | - Qi Gu
- State Key Laboratory of Membrane Biology; Institute of Zoology; Chinese Academy of Sciences; Beijing 100101 P. R. China
| | - Shu Wang
- Beijing National Laboratory for Molecular Sciences; Key Laboratory of Organic Solids; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100910 P. R. China
- College of Chemistry; University of Chinese Academy of Sciences; Beijing 100049 P. R. China
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33
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Kamble RM, Sharma BK, Shaikh AM, Chacko S. Design, Synthesis, Opto-Electrochemical and Theoretical Investigation of Novel Indolo[2, 3-b]naphtho[2, 3-f]quinoxaline Derivatives forn-Type Materials in Organic Electronics. ChemistrySelect 2018. [DOI: 10.1002/slct.201801208] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Rajesh M. Kamble
- Department of Chemistry; University of Mumbai; Mumbai - 400098 India
| | - Bharat K. Sharma
- Department of Chemistry; University of Mumbai; Mumbai - 400098 India
| | - Azam M. Shaikh
- Department of Chemistry; University of Mumbai; Mumbai - 400098 India
| | - Sajeev Chacko
- Department of Physics; University of Mumbai; Mumbai - 400098 India
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34
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Rather SR, Bezdek MJ, Koch M, Chirik PJ, Scholes GD. Ultrafast Photophysics of a Dinitrogen-Bridged Molybdenum Complex. J Am Chem Soc 2018; 140:6298-6307. [PMID: 29719149 DOI: 10.1021/jacs.8b00890] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Among the many metal-dinitrogen complexes synthesized, the end-on bridging (μ2, η1, η1-N2) coordination mode is notoriously unreactive for nitrogen fixation. This is principally due to the large activation energy for ground-state nitrogen-element bond formation and motivates exploration of the photoexcited reactivity of this coordination mode. To provide the foundation for this concept, the photophysics of a dinitrogen-bridged molybdenum complex was explored by ultrafast electronic spectroscopies. The complex absorbs light from the UV to near-IR, and the transitions are predominantly of metal-to-ligand charge transfer (MLCT) character. Five excitation wavelengths (440, 520, 610, 730, and 1150 nm) were employed to access MLCT bands, and the dynamics were probed between 430 and 1600 nm. Despite the large energy space occupied by electronic states (ca. 1.2 eV), the dynamics were independent of the excitation wavelength. In the proposed kinetic model, photoexcitation from a Mo-N═N-Mo centered ground state populates the π*-state delocalized over two terpyridine ligands. Due to a large terpyridine-terpyridine spatial separation, electronic localization occurs within 100 fs, augmented by symmetry breaking. The subsequent interplay of internal conversion and intersystem crossing (ISC) populates the lowest 3MLCT state in 2-3 ps. Decay to the ground state occurs either directly or via a thermally activated metal-centered (3MC) trap state having two time constants (10-15 ps, 23-26 ps [298 K]; 103 ps, 612 ps [77 K]). ISC between 1MLCT and 3MLCT involves migration of energized electron density from the terpyridine π* orbitals to the Mo-N═N-Mo core. Implication of the observed dynamics for the potential N-H bond forming reactivity are discussed.
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Affiliation(s)
- Shahnawaz R Rather
- Frick Chemistry Laboratory , Princeton University , Princeton , New Jersey 08544 , United States
| | - Máté J Bezdek
- Frick Chemistry Laboratory , Princeton University , Princeton , New Jersey 08544 , United States
| | - Marius Koch
- Frick Chemistry Laboratory , Princeton University , Princeton , New Jersey 08544 , United States
| | - Paul J Chirik
- Frick Chemistry Laboratory , Princeton University , Princeton , New Jersey 08544 , United States
| | - Gregory D Scholes
- Frick Chemistry Laboratory , Princeton University , Princeton , New Jersey 08544 , United States
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35
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Sharma BK, Shaikh AM, Chacko S, Kamble RM. Synthesis and optoelectronic investigation of triarylamines based on imidazoanthraquinone as donor–acceptors for n-type materials. J CHEM SCI 2018. [DOI: 10.1007/s12039-018-1443-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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36
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Yang Q, Hu Z, Zhu S, Ma R, Ma H, Ma Z, Wan H, Zhu T, Jiang Z, Liu W, Jiao L, Sun H, Liang Y, Dai H. Donor Engineering for NIR-II Molecular Fluorophores with Enhanced Fluorescent Performance. J Am Chem Soc 2018; 140:1715-1724. [DOI: 10.1021/jacs.7b10334] [Citation(s) in RCA: 285] [Impact Index Per Article: 47.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Qinglai Yang
- Department of Materials Science & Engineering, Shenzhen Key Laboratory of Printed Organic Electronics, South University of Science & Technology of China, Shenzhen 518055, China
- Research
Center for Advanced Materials and Biotechnology, Research Institute of Tsinghua University in Shenzhen, Shenzhen 518057, China
- Department
of Chemistry, Tsinghua University, Beijing 100084, China
| | - Zhubin Hu
- State
Key Laboratory of Precision Spectroscopy, School of Physics and Materials
Science, East China Normal University, Shanghai 200062, China
| | - Shoujun Zhu
- Department
of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Rui Ma
- Department of Materials Science & Engineering, Shenzhen Key Laboratory of Printed Organic Electronics, South University of Science & Technology of China, Shenzhen 518055, China
| | - Huilong Ma
- Department of Materials Science & Engineering, Shenzhen Key Laboratory of Printed Organic Electronics, South University of Science & Technology of China, Shenzhen 518055, China
| | - Zhuoran Ma
- Department
of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Hao Wan
- Department of Materials Science & Engineering, Shenzhen Key Laboratory of Printed Organic Electronics, South University of Science & Technology of China, Shenzhen 518055, China
- Department
of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Tong Zhu
- School of
Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| | - Zhengyan Jiang
- Department of Materials Science & Engineering, Shenzhen Key Laboratory of Printed Organic Electronics, South University of Science & Technology of China, Shenzhen 518055, China
| | - Weiqiang Liu
- Research
Center for Advanced Materials and Biotechnology, Research Institute of Tsinghua University in Shenzhen, Shenzhen 518057, China
| | - Liying Jiao
- Department
of Chemistry, Tsinghua University, Beijing 100084, China
| | - Haitao Sun
- State
Key Laboratory of Precision Spectroscopy, School of Physics and Materials
Science, East China Normal University, Shanghai 200062, China
| | - Yongye Liang
- Department of Materials Science & Engineering, Shenzhen Key Laboratory of Printed Organic Electronics, South University of Science & Technology of China, Shenzhen 518055, China
| | - Hongjie Dai
- Department
of Chemistry, Stanford University, Stanford, California 94305, United States
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37
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Brogdon P, Cheema H, Delcamp JH. Near-Infrared-Absorbing Metal-Free Organic, Porphyrin, and Phthalocyanine Sensitizers for Panchromatic Dye-Sensitized Solar Cells. CHEMSUSCHEM 2018; 11:86-103. [PMID: 28926685 DOI: 10.1002/cssc.201701441] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Revised: 09/18/2017] [Indexed: 06/07/2023]
Abstract
Dye-sensitized solar cells (DSCs) are a promising source of renewable energy. However, the power conversion efficiency (PCE) of devices has been limited largely by the difficulty of producing electricity using photons from the near-infrared (NIR) spectral region. Metal-free organic sensitizers frequently employ strong electron-donating or -withdrawing moieties to tune the optical band gap to allow the absorption of lower energy wavelengths in charge-transfer systems, whereas porphyrins and phthalocyanines use substituents to shift the Soret and Q bands toward lower energy absorption. Very few devices employing precious metal-free dyes have achieved panchromatic and NIR photon conversion for electricity generation at wavelengths >750 nm despite a tremendous number of sensitizers published over the last 25 years. This Minireview seeks to compile a summary of these sensitizers to encourage assimilation, analysis, and development of efficient future sensitizers with absorption extending into the NIR. Herein, we discuss common synthetic strategies, optical properties, and electronic properties of the most successful panchromatic organic sensitizers.
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Affiliation(s)
- Phillip Brogdon
- Department of Chemistry and Biochemistry, University of Mississippi, Oxford, MS, 38677, USA
| | - Hammad Cheema
- Department of Chemistry and Biochemistry, University of Mississippi, Oxford, MS, 38677, USA
| | - Jared H Delcamp
- Department of Chemistry and Biochemistry, University of Mississippi, Oxford, MS, 38677, USA
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38
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Cheema H, Peddapuram A, Adams RE, McNamara L, Hunt LA, Le N, Watkins DL, Hammer NI, Schmehl RH, Delcamp JH. Molecular Engineering of Near Infrared Absorbing Thienopyrazine Double Donor Double Acceptor Organic Dyes for Dye-Sensitized Solar Cells. J Org Chem 2017; 82:12038-12049. [PMID: 29023117 DOI: 10.1021/acs.joc.7b01750] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The thienopyrazine (TPz) building block allows for NIR photon absorption in dye-sensitized solar cells (DSCs) when used as a π-bridge. We synthesized and characterized 7 organic sensitizers employing thienopyrazine (TPz) as a π-bridge in a double donor, double acceptor organic dye design. Donor groups are varied based on electron donating strength and sterics at the donor-π bridge bond with the acceptor groups varied as either carboxylic acids or benzoic acids on the π-bridge. This dye design was found to be remarkably tunable with solution absorption onsets ranging from 750 to near 1000 nm. Interestingly, the solution absorption measurements do not accurately approximate the dye absorption on TiO2 films with up to a 250 nm blue-shift of the dye absorption onset on TiO2. This shift in absorption and the effect on electron transfer properties is investigated via computational analysis, time-correlated single photon counting studies, and transient absorption spectroscopy. Structure-performance relationships were analyzed for the dyes in DSC devices with the highest performance observed at 17.6 mA/cm2 of photocurrent and 7.5% PCE for a cosensitized device with a panchromatic IPCE onset of 800 nm.
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Affiliation(s)
- Hammad Cheema
- Department of Chemistry and Biochemistry, University of Mississippi , University, Mississippi 38677, United States
| | - Adithya Peddapuram
- Department of Chemistry and Biochemistry, University of Mississippi , University, Mississippi 38677, United States
| | - Rebecca E Adams
- Department of Chemistry, Tulane University , New Orleans, Louisiana 70118, United States
| | - Louis McNamara
- Department of Chemistry and Biochemistry, University of Mississippi , University, Mississippi 38677, United States
| | - Leigh Anna Hunt
- Department of Chemistry and Biochemistry, University of Mississippi , University, Mississippi 38677, United States
| | - Ngoc Le
- Department of Chemistry and Biochemistry, University of Mississippi , University, Mississippi 38677, United States
| | - Davita L Watkins
- Department of Chemistry and Biochemistry, University of Mississippi , University, Mississippi 38677, United States
| | - Nathan I Hammer
- Department of Chemistry and Biochemistry, University of Mississippi , University, Mississippi 38677, United States
| | - Russell H Schmehl
- Department of Chemistry, Tulane University , New Orleans, Louisiana 70118, United States
| | - Jared H Delcamp
- Department of Chemistry and Biochemistry, University of Mississippi , University, Mississippi 38677, United States
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39
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Wang B, Feng G, Seifrid M, Wang M, Liu B, Bazan GC. Antibacterial Narrow‐Band‐Gap Conjugated Oligoelectrolytes with High Photothermal Conversion Efficiency. Angew Chem Int Ed Engl 2017; 56:16063-16066. [DOI: 10.1002/anie.201709887] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Bing Wang
- Center for Polymers and Organic Solids Department of Chemistry and Biochemistry University of California Santa Barbara CA 93106 USA
| | - Guangxue Feng
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
| | - Martin Seifrid
- Center for Polymers and Organic Solids Department of Chemistry and Biochemistry University of California Santa Barbara CA 93106 USA
| | - Ming Wang
- Center for Polymers and Organic Solids Department of Chemistry and Biochemistry University of California Santa Barbara CA 93106 USA
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
| | - Guillermo C. Bazan
- Center for Polymers and Organic Solids Department of Chemistry and Biochemistry University of California Santa Barbara CA 93106 USA
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40
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Wang B, Feng G, Seifrid M, Wang M, Liu B, Bazan GC. Antibacterial Narrow‐Band‐Gap Conjugated Oligoelectrolytes with High Photothermal Conversion Efficiency. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201709887] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Bing Wang
- Center for Polymers and Organic Solids Department of Chemistry and Biochemistry University of California Santa Barbara CA 93106 USA
| | - Guangxue Feng
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
| | - Martin Seifrid
- Center for Polymers and Organic Solids Department of Chemistry and Biochemistry University of California Santa Barbara CA 93106 USA
| | - Ming Wang
- Center for Polymers and Organic Solids Department of Chemistry and Biochemistry University of California Santa Barbara CA 93106 USA
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
| | - Guillermo C. Bazan
- Center for Polymers and Organic Solids Department of Chemistry and Biochemistry University of California Santa Barbara CA 93106 USA
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41
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Sharma BK, Dixit S, Chacko S, Kamble RM, Agarwal N. Synthesis and Studies of Imidazoanthraquinone Derivatives for Applications in Organic Electronics. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700769] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Bharat K. Sharma
- Department of Chemistry; University of Mumbai; Santacruz (E) 400098 Mumbai India
| | - Swati Dixit
- Department of Chemical Sciences; UM-DAE; Centre for Excellence in Basic Sciences; University of Mumbai; Santacruz (E) 400098 Mumbai India
| | - Sajeev Chacko
- Department of Physics; University of Mumbai; Santacruz (E) 400098 Mumbai India
| | - Rajesh M. Kamble
- Department of Chemistry; University of Mumbai; Santacruz (E) 400098 Mumbai India
| | - Neeraj Agarwal
- Department of Chemical Sciences; UM-DAE; Centre for Excellence in Basic Sciences; University of Mumbai; Santacruz (E) 400098 Mumbai India
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42
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Zhang Y, Autry SA, McNamara LE, Nguyen ST, Le N, Brogdon P, Watkins DL, Hammer NI, Delcamp JH. Near-Infrared Fluorescent Thienothiadiazole Dyes with Large Stokes Shifts and High Photostability. J Org Chem 2017; 82:5597-5606. [DOI: 10.1021/acs.joc.7b00422] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Yanbing Zhang
- Department of Chemistry and
Biochemistry, University of Mississippi, University, Mississippi 38677, United States
| | - Shane A. Autry
- Department of Chemistry and
Biochemistry, University of Mississippi, University, Mississippi 38677, United States
| | - Louis E. McNamara
- Department of Chemistry and
Biochemistry, University of Mississippi, University, Mississippi 38677, United States
| | - Suong T. Nguyen
- Department of Chemistry and
Biochemistry, University of Mississippi, University, Mississippi 38677, United States
| | - Ngoc Le
- Department of Chemistry and
Biochemistry, University of Mississippi, University, Mississippi 38677, United States
| | - Phillip Brogdon
- Department of Chemistry and
Biochemistry, University of Mississippi, University, Mississippi 38677, United States
| | - Davita L. Watkins
- Department of Chemistry and
Biochemistry, University of Mississippi, University, Mississippi 38677, United States
| | - Nathan I. Hammer
- Department of Chemistry and
Biochemistry, University of Mississippi, University, Mississippi 38677, United States
| | - Jared H. Delcamp
- Department of Chemistry and
Biochemistry, University of Mississippi, University, Mississippi 38677, United States
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43
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Wang B, Wang M, Mikhailovsky A, Wang S, Bazan GC. A Membrane‐Intercalating Conjugated Oligoelectrolyte with High‐Efficiency Photodynamic Antimicrobial Activity. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201701146] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Bing Wang
- Center for Polymers and Organic Solids Department of Chemistry and Biochemistry University of California Santa Barbara CA 93106 USA
| | - Ming Wang
- Center for Polymers and Organic Solids Department of Chemistry and Biochemistry University of California Santa Barbara CA 93106 USA
| | - Alexander Mikhailovsky
- Center for Polymers and Organic Solids Department of Chemistry and Biochemistry University of California Santa Barbara CA 93106 USA
| | - Shu Wang
- Beijing National Laboratory for Molecular Science Key Laboratory of Organic Solids, Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P.R. China
| | - Guillermo C. Bazan
- Center for Polymers and Organic Solids Department of Chemistry and Biochemistry University of California Santa Barbara CA 93106 USA
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Wang B, Wang M, Mikhailovsky A, Wang S, Bazan GC. A Membrane‐Intercalating Conjugated Oligoelectrolyte with High‐Efficiency Photodynamic Antimicrobial Activity. Angew Chem Int Ed Engl 2017; 56:5031-5034. [DOI: 10.1002/anie.201701146] [Citation(s) in RCA: 115] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Indexed: 11/09/2022]
Affiliation(s)
- Bing Wang
- Center for Polymers and Organic Solids Department of Chemistry and Biochemistry University of California Santa Barbara CA 93106 USA
| | - Ming Wang
- Center for Polymers and Organic Solids Department of Chemistry and Biochemistry University of California Santa Barbara CA 93106 USA
| | - Alexander Mikhailovsky
- Center for Polymers and Organic Solids Department of Chemistry and Biochemistry University of California Santa Barbara CA 93106 USA
| | - Shu Wang
- Beijing National Laboratory for Molecular Science Key Laboratory of Organic Solids, Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P.R. China
| | - Guillermo C. Bazan
- Center for Polymers and Organic Solids Department of Chemistry and Biochemistry University of California Santa Barbara CA 93106 USA
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45
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Effect of additional donor group on the charge transfer/recombination dynamics of a photoactive organic dye: A quantum mechanical investigation. COMPUT THEOR CHEM 2017. [DOI: 10.1016/j.comptc.2017.01.011] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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46
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Tam TLD, Lin TT, Chua MH. Can time-dependent density functional theory predict intersystem crossing in organic chromophores? A case study on benzo(bis)-X-diazole based donor–acceptor–donor type molecules. Phys Chem Chem Phys 2017; 19:15671-15675. [DOI: 10.1039/c7cp03121a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Here we utilized new diagnostic tools in time-dependent density functional theory to explain the trend of intersystem crossing in benzo(bis)-X-diazole based donor–acceptor–donor type molecules.
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Affiliation(s)
- Teck Lip Dexter Tam
- Institute of Materials Research and Engineering (IMRE)
- Agency of Science
- Technology and Research (A*STAR)
- Singapore 138634
- Singapore
| | - Ting Ting Lin
- Institute of Materials Research and Engineering (IMRE)
- Agency of Science
- Technology and Research (A*STAR)
- Singapore 138634
- Singapore
| | - Ming Hui Chua
- Institute of Materials Research and Engineering (IMRE)
- Agency of Science
- Technology and Research (A*STAR)
- Singapore 138634
- Singapore
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47
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Hayashi M, Otsubo K, Maesato M, Komatsu T, Sugimoto K, Fujiwara A, Kitagawa H. An Electrically Conductive Single-Component Donor-Acceptor-Donor Aggregate with Hydrogen-Bonding Lattice. Inorg Chem 2016; 55:13027-13034. [PMID: 27989166 DOI: 10.1021/acs.inorgchem.6b02301] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An electrically conductive D-A-D aggregate composed of a single component was first constructed by use of a protonated bimetal dithiolate (complex 1H2). The crystal structure of complex 1H2 has one-dimensional (1-D) π-stacking columns where the D and A moieties are placed in a segregated-stacking manner. In addition, these segregated-stacking 1-D columns are stabilized by hydrogen bonds. The result of a theoretical band calculation suggests that a conduction pathway forms along these 1-D columns. The transport property of complex 1H2 is semiconducting (Ea = 0.29 eV, ρrt = 9.1 × 104 Ω cm) at ambient pressure; however, the resistivity becomes much lower upon applying high pressure up to 8.8 GPa (Ea = 0.13 eV, ρrt = 6.2 × 10 Ω cm at 8.8 GPa). The pressure dependence of structural and optical changes indicates that the enhancement of conductivity is attributed to not only an increase of π-π overlapping but also a unique pressure-induced intramolecular charge transfer from D to A moieties in this D-A-D aggregate.
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Affiliation(s)
- Mikihiro Hayashi
- Division of Chemistry, Graduate School of Science, Kyoto University , Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan
| | - Kazuya Otsubo
- Division of Chemistry, Graduate School of Science, Kyoto University , Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan
| | - Mitsuhiko Maesato
- Division of Chemistry, Graduate School of Science, Kyoto University , Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan
| | - Tokutaro Komatsu
- Division of Chemistry, Institute of Liberal Education, Nihon University School of Medicine , Tokyo 173-8610, Japan
| | - Kunihisa Sugimoto
- Japan Synchrotron Radiation Research Institute (JASRI), SPring-8 , 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
| | - Akihiko Fujiwara
- Department of Nanotechnology for Sustainable Energy, Graduate School of Science and Technology, Kansei Gakuin University , Gakuen, Sanda, Hyogo 669-1337, Japan
| | - Hiroshi Kitagawa
- Division of Chemistry, Graduate School of Science, Kyoto University , Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan
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48
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Liu YN, Wang SF, Tao YT, Huang W. Heavy metal complex containing organic/polymer materials for bulk-heterojunction photovoltaic devices. CHINESE CHEM LETT 2016. [DOI: 10.1016/j.cclet.2016.07.018] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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49
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Cekli S, Winkel RW, Schanze KS. Effect of Oligomer Length on Photophysical Properties of Platinum Acetylide Donor–Acceptor–Donor Oligomers. J Phys Chem A 2016; 120:5512-21. [DOI: 10.1021/acs.jpca.6b03977] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Seda Cekli
- Department
of Chemistry and Center for Macromolecular Science and Engineering, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Russell W. Winkel
- Department
of Chemistry and Center for Macromolecular Science and Engineering, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Kirk S. Schanze
- Department
of Chemistry and Center for Macromolecular Science and Engineering, University of Florida, Gainesville, Florida 32611-7200, United States
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50
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Acharya R, Cekli S, Zeman CJ, Altamimi RM, Schanze KS. Effect of Selenium Substitution on Intersystem Crossing in π-Conjugated Donor-Acceptor-Donor Chromophores: The LUMO Matters the Most. J Phys Chem Lett 2016; 7:693-697. [PMID: 26822061 DOI: 10.1021/acs.jpclett.5b02902] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
This study explores the effect of substitution of selenium (Se) for sulfur (S) on the photophysical properties of a series of π-conjugated donor-acceptor-donor chromophores based on 4,7-bis(2-thienyl)-2,1,3-benzothiadiazole (TBT). The effect of Se substitution is studied systematically, where the substitution is in the thiophene donors only, the benzothiadiazole acceptor only, and in all of the positions. The fluorescence quantum yield decreases with an increase in Se substitution. Nanosecond-microsecond transient absorption and singlet oxygen sensitization experiments show that the effect of Se is due to an increase in the rate and efficiency of intersystem crossing with increased Se substitution. The relationship between intersystem crossing efficiency and heteroatom substitution pattern shows that the effects are largest when the heavy atom Se is in the acceptor benzothiadiazole unit. DFT calculations support the hypothesis that the effect arises because the LUMO is concentrated in the acceptor moiety, enhancing the spin-orbit coupling effect imparted by the Se atom.
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Affiliation(s)
- Rajendra Acharya
- Department of Chemistry and Center for Macromolecular Science and Engineering, University of Florida , Gainesville, Florida 32611-7200, United States
| | - Seda Cekli
- Department of Chemistry and Center for Macromolecular Science and Engineering, University of Florida , Gainesville, Florida 32611-7200, United States
| | - Charles J Zeman
- Department of Chemistry and Center for Macromolecular Science and Engineering, University of Florida , Gainesville, Florida 32611-7200, United States
| | - Rashid M Altamimi
- Petrochemicals Research Institute, King Abdulaziz City for Science and Technology , Riyadh 11442, Kingdom of Saudi Arabia
| | - Kirk S Schanze
- Department of Chemistry and Center for Macromolecular Science and Engineering, University of Florida , Gainesville, Florida 32611-7200, United States
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