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Heterometal Grafted Metalla-ynes and Poly(metalla-ynes): A Review on Structure-Property Relationships and Applications. Polymers (Basel) 2021; 13:polym13213654. [PMID: 34771211 PMCID: PMC8588132 DOI: 10.3390/polym13213654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 10/04/2021] [Accepted: 10/20/2021] [Indexed: 11/16/2022] Open
Abstract
Metalla-ynes and poly(metalla-ynes) have emerged as unique molecular scaffolds with fascinating structural features and intriguing photo-luminescence (PL) properties. Their rigid-rod conducting backbone with tunable photo-physical properties has generated immense research interests for the design and development of application-oriented functional materials. Introducing a second d- or f-block metal fragment in the main-chain or side-chain of a metalla-yne and poly(metalla-yne) was found to further modulate the underlying features/properties. This review focuses on the photo-physical properties and opto-electronic (O-E) applications of heterometal grafted metalla-ynes and poly(metalla-ynes).
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3
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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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4
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Masai H, Yokoyama T, Miyagishi HV, Liu M, Tachibana Y, Fujihara T, Tsuji Y, Terao J. Insulated conjugated bimetallopolymer with sigmoidal response by dual self-controlling system as a biomimetic material. Nat Commun 2020; 11:408. [PMID: 31964865 PMCID: PMC6972936 DOI: 10.1038/s41467-019-14271-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Accepted: 12/27/2019] [Indexed: 12/13/2022] Open
Abstract
Biological systems are known to spontaneously adjust the functioning of neurotransmitters, ion channels, and the immune system, being promoted or regulated through allosteric effects or inhibitors, affording non-linear responses to external stimuli. Here we report that an insulated conjugated bimetallopolymer, in which Ru(II) and Pt(II) complexes are mutually connected with insulated conjugations, exhibits phosphorescence in response to CO gas. The net profile corresponds to a sigmoidal response with a dual self-controlling system, where drastic changes were exhibited at two threshold concentrations. The first threshold for activation of the system is triggered by the depolymerization of the non-radiative conjugated polymer to luminescent monomers, while the second one for regulation is triggered by the switch in the rate-determining step of the Ru complex. Such a molecular design with cooperative multiple transition metals would provide routes for the development of higher-ordered artificial molecular systems bearing bioinspired responses with autonomous modulation.
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Affiliation(s)
- Hiroshi Masai
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, Tokyo, 153-8902, Japan
| | - Takuya Yokoyama
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto, 615-8510, Japan
| | - Hiromichi V Miyagishi
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, Tokyo, 153-8902, Japan
| | - Maning Liu
- School of Engineering, RMIT University, Bundoora, Victoria, 3083, Australia
| | - Yasuhiro Tachibana
- School of Engineering, RMIT University, Bundoora, Victoria, 3083, Australia
| | - Tetsuaki Fujihara
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto, 615-8510, Japan
| | - Yasushi Tsuji
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto, 615-8510, Japan
| | - Jun Terao
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, Tokyo, 153-8902, Japan.
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5
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Tian Z, Yang X, Liu B, Zhong D, Zhou G. Photophysical properties and optical power limiting ability of Pt(II) polyynes bearing fluorene-type ligands with ethynyl units at different positions. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2019.05.022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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6
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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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Chandrasekhar V, Mahanti B, Pandey MD, Narayanan RS. Cyclometalated Ir(III) Complex as a Metalloligand and a Selective Cu(II) Sensor: Synthesis and Structural Characterization of a Heterometallic Tetranuclear Ir(III)/Cu(II) Complex. ACS OMEGA 2018; 3:2786-2792. [PMID: 31458555 PMCID: PMC6641452 DOI: 10.1021/acsomega.8b00042] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Accepted: 02/23/2018] [Indexed: 06/10/2023]
Abstract
A cyclometalated Ir(III) complex, [Ir(ppy)2(LH)] (2) [LH2 = 1,2-bis(pyridine-2-carboxamido)benzene; ppyH = 2-phenylpyridine] was synthesized and structurally characterized. [Ir(ppy)2(LH)] contains free donor sites and functions as a metalloligand. Accordingly, it interacts with a Cu(II) salt to afford the heterometallic tetranuclear complex, [{Ir(ppy)2(L)}2{Cu2Cl2}] (3). In the latter, a Cu2Cl2 dimer bridges the two cyclometalated Ir(III) units, resulting in a IrIII-CuII-CuII-IrIII motif. 2 also functions as a selective and reversible sensor for Cu2+, as revealed by quenching of its emission and subsequent revival of the luminescence signal upon addition of EDTA.
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Affiliation(s)
- Vadapalli Chandrasekhar
- Department
of Chemistry, Indian Institute of Technology
Kanpur, Kanpur 208 016, India
- Tata
Institute of Fundamental Research, Hyderabad 500107, India
| | - Bani Mahanti
- Department
of Chemistry, Indian Institute of Technology
Kanpur, Kanpur 208 016, India
| | - Mrituanjay D. Pandey
- Department
of Chemistry, Institute of Science, Banaras
Hindu University, Varanasi, Uttar Pradesh 221005, India
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8
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Zhang J, Xu L, Ho CL, Wong WY. Functional Organometallic Poly(arylene ethynylene)s: From Synthesis to Applications. Top Curr Chem (Cham) 2017; 375:77. [PMID: 28819798 DOI: 10.1007/s41061-017-0164-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Accepted: 07/21/2017] [Indexed: 10/19/2022]
Abstract
This review focuses on the recent development in the rigid-rod metallopolymers of late transition metals based on triple-bond building blocks. The synthesis, structure-property relationships and potential applications of organometallic poly(arylene ethynylene)s will be discussed in detail. These functional metal-based polymers can exhibit intriguing optical, electronic and magnetic properties. Considerable focus is placed on the design strategies towards tuning the optical bandgap and emission color (spanning almost the whole visible spectrum) of this class of metallopolymers, and the investigation of their use as active materials for light/electrical energy conversion and energy and information storage. The ongoing scientific challenges and future prospects of this research field are also highlighted.
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Affiliation(s)
- Jie Zhang
- Department of Chemistry, School of Pharmaceutical and Chemical Engineering, Taizhou University, 1139 Shifu Road, Taizhou, 318000, Zhejiang Province, People's Republic of China.
| | - Linli Xu
- Department of Chemistry, Institute of Molecular Functional Materials, Hong Kong Baptist University, Waterloo Road, Hong Kong, People's Republic of China.
| | - Cheuk-Lam Ho
- Department of Chemistry, Institute of Molecular Functional Materials, Hong Kong Baptist University, Waterloo Road, Hong Kong, People's Republic of China.
| | - Wai-Yeung Wong
- Department of Chemistry, Institute of Molecular Functional Materials, Hong Kong Baptist University, Waterloo Road, Hong Kong, People's Republic of China. .,Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, People's Republic of China.
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9
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Jayapal M, Haque A, Al-Busaidi IJ, Al-Balushi R, Al-Suti MK, Islam SM, Khan MS. Synthesis, characterization and photocell studies of a Pt(II) poly-yne covalently attached to a fullerene. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.05.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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10
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Electroluminescent Performances of Iridium Complexes with Dibenzo-18-crown-6. J Inorg Organomet Polym Mater 2017. [DOI: 10.1007/s10904-017-0539-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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11
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Juvenal F, Langlois A, Bonnot A, Fortin D, Harvey PD. Luminescent 1D- and 2D-Coordination Polymers Using CuX Salts (X = Cl, Br, I) and a Metal-Containing Dithioether Ligand. Inorg Chem 2016; 55:11096-11109. [DOI: 10.1021/acs.inorgchem.6b01703] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Frank Juvenal
- Département
de chimie, Université de Sherbrooke, Sherbrooke, Québec, Canada J1K 2R1
| | - Adam Langlois
- Département
de chimie, Université de Sherbrooke, Sherbrooke, Québec, Canada J1K 2R1
| | - Antoine Bonnot
- Département
de chimie, Université de Sherbrooke, Sherbrooke, Québec, Canada J1K 2R1
| | - Daniel Fortin
- Département
de chimie, Université de Sherbrooke, Sherbrooke, Québec, Canada J1K 2R1
| | - Pierre D. Harvey
- Département
de chimie, Université de Sherbrooke, Sherbrooke, Québec, Canada J1K 2R1
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12
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Winter A, Schubert US. Synthesis and characterization of metallo-supramolecular polymers. Chem Soc Rev 2016; 45:5311-57. [PMID: 27218823 DOI: 10.1039/c6cs00182c] [Citation(s) in RCA: 249] [Impact Index Per Article: 31.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The incorporation of metal centers into the backbone of polymers has led to the development of a broad range of organometallic and coordination compounds featuring properties that are relevant for potential applications in diverse areas of research, ranging from energy storage/conversion to bioactive or self-healing materials. In this review, the basic concepts and synthetic strategies leading to these types of materials as well as the scope of available characterization techniques will be summarized and discussed.
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Affiliation(s)
- Andreas Winter
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany.
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13
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Ho CL, Yu ZQ, Wong WY. Multifunctional polymetallaynes: properties, functions and applications. Chem Soc Rev 2016; 45:5264-95. [DOI: 10.1039/c6cs00226a] [Citation(s) in RCA: 153] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Polymetallaynes of late transition metal elements have aroused considerable research attention. This Review article highlights the structure–property–function relationships of this class of metallopolymers and their emerging applications in electronic, optical and magnetic devices.
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Affiliation(s)
- Cheuk-Lam Ho
- Institute of Molecular Functional Materials
- Department of Chemistry and Institute of Advanced Materials
- Hong Kong Baptist University
- HKBU Institute of Research and Continuing Education
- Shenzhen Virtual University Park
| | - Zhen-Qiang Yu
- Shenzhen Key Laboratory of Functional Polymers
- School of Chemistry and Environmental Engineering
- Shenzhen University
- Shenzhen 518060
- P. R. China
| | - Wai-Yeung Wong
- Institute of Molecular Functional Materials
- Department of Chemistry and Institute of Advanced Materials
- Hong Kong Baptist University
- HKBU Institute of Research and Continuing Education
- Shenzhen Virtual University Park
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14
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Fernández-Cestau J, Giménez N, Lalinde E, Montaño P, Moreno MT, Sánchez S. Synthesis, Characterization, and Properties of Doubly Alkynyl Bridging Dinuclear Cyclometalated Iridium(III) Complexes. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00111] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Julio Fernández-Cestau
- Departamento
de Química, Centro de Investigación en Síntesis
Química, Universidad de La Rioja, 26006 Logroño, Spain
| | - Nora Giménez
- Departamento
de Química, Centro de Investigación en Síntesis
Química, Universidad de La Rioja, 26006 Logroño, Spain
| | - Elena Lalinde
- Departamento
de Química, Centro de Investigación en Síntesis
Química, Universidad de La Rioja, 26006 Logroño, Spain
| | - Patricia Montaño
- Departamento
de Química, Centro de Investigación en Síntesis
Química, Universidad de La Rioja, 26006 Logroño, Spain
| | - M. Teresa Moreno
- Departamento
de Química, Centro de Investigación en Síntesis
Química, Universidad de La Rioja, 26006 Logroño, Spain
| | - Sergio Sánchez
- School
of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, U.K
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15
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Liang A, Huang G, Chen S, Hou H. A novel cyclometalated Iridium(iii) complex containing dibenzo-24-crown-8: synthesis, luminescence and application in highly efficient green phosphorescent OLEDs. RSC Adv 2015. [DOI: 10.1039/c5ra07051a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Several novel dibenzo-24-crown-8 substituted iridium complexes have been obtained, which emit green light with a high ΦPL ranging from 0.56 to 0.63. The PLEDs with G3 as a dopant display the best EL performances with a LE of 29.6 cd A−1.
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Affiliation(s)
- Aihui Liang
- Key Laboratory of Functional Small Organic Molecules
- Ministry of Education and College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
- P. R. China
| | - Gui Huang
- Key Laboratory of Functional Small Organic Molecules
- Ministry of Education and College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
- P. R. China
| | - Shuiliang Chen
- Key Laboratory of Functional Small Organic Molecules
- Ministry of Education and College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
- P. R. China
| | - Haoqing Hou
- Key Laboratory of Functional Small Organic Molecules
- Ministry of Education and College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
- P. R. China
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16
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Soliman AM, Zysman-Colman E, Harvey PD. Strategic Modulation of the Photonic Properties of Conjugated Organometallic Pt-Ir Polymers Exhibiting Hybrid CT-Excited States. Macromol Rapid Commun 2014; 36:627-32. [DOI: 10.1002/marc.201400542] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Revised: 10/21/2014] [Indexed: 11/08/2022]
Affiliation(s)
- Ahmed M. Soliman
- Département de chimie; Université de Sherbrooke; Sherbrooke J1K 2R1 Québec Canada
| | - Eli Zysman-Colman
- Département de chimie; Université de Sherbrooke; Sherbrooke J1K 2R1 Québec Canada
| | - Pierre D. Harvey
- Département de chimie; Université de Sherbrooke; Sherbrooke J1K 2R1 Québec Canada
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17
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Recent Progresses of Iridium Complex-Containing Macromolecules for Solution-Processed Organic Light-Emitting Diodes. J Inorg Organomet Polym Mater 2014. [DOI: 10.1007/s10904-014-0099-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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18
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Tang JH, Wu SH, Shao JY, Nie HJ, Zhong YW. Ruthenium-Amine Electronic Coupling Bridged through Phen-1,3-diyl Versus Phen-1,4-diyl: Reverse of the Charge Transfer Direction. Organometallics 2013. [DOI: 10.1021/om400519b] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jian-Hong Tang
- Beijing National Laboratory
for Molecular Sciences, CAS Key Laboratory of Photochemistry, Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Si-Hai Wu
- Beijing National Laboratory
for Molecular Sciences, CAS Key Laboratory of Photochemistry, Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Jiang-Yang Shao
- Beijing National Laboratory
for Molecular Sciences, CAS Key Laboratory of Photochemistry, Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Hai-Jing Nie
- Beijing National Laboratory
for Molecular Sciences, CAS Key Laboratory of Photochemistry, Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Yu-Wu Zhong
- Beijing National Laboratory
for Molecular Sciences, CAS Key Laboratory of Photochemistry, Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
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19
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Ho CL, Wong WY. Charge and energy transfers in functional metallophosphors and metallopolyynes. Coord Chem Rev 2013. [DOI: 10.1016/j.ccr.2012.08.023] [Citation(s) in RCA: 159] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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20
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Shao S, Ma Z, Ding J, Wang L, Jing X, Wang F. Spiro-linked hyperbranched architecture in electrophosphorescent conjugated polymers for tailoring triplet energy back transfer. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2012; 24:2009-2013. [PMID: 22431293 DOI: 10.1002/adma.201104544] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2011] [Indexed: 05/31/2023]
Abstract
A spiro-linked hyperbranched architecture has been incorporated into electrophosphorescent conjugated polymers for the first time, aiming at simultaneously tailoring the intra- and intermolecular triplet energy back transfer from the phosphorescent guest to the conjugated polymer host. Based on a prototype with this unique structure, slower decay of triplet excitons, and 5-8 fold enhancement of device efficiencies are obtained compared with the conventional blending counterpart.
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Affiliation(s)
- Shiyang Shao
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, P R China
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21
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Soliman AM, Fortin D, Zysman-Colman E, Harvey PD. Photonics of a Conjugated Organometallic Pt-Ir Polymer and Its Model Compounds Exhibiting Hybrid CT Excited States. Macromol Rapid Commun 2012; 33:522-7. [DOI: 10.1002/marc.201100721] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2011] [Revised: 11/23/2011] [Indexed: 11/09/2022]
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22
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Soliman AM, Fortin D, Harvey PD, Zysman-Colman E. Hybrid charged heterometallic Pt–Ir complexes: tailoring excited states by taking the best of both worlds. Chem Commun (Camb) 2012; 48:1120-2. [DOI: 10.1039/c1cc15507e] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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23
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Soliman AM, Fortin D, Zysman-Colman E, Harvey PD. Unexpected evolution of optical properties in Ir–Pt complexes upon repeat unit increase: towards an understanding of the photophysical behaviour of organometallic polymers. Chem Commun (Camb) 2012; 48:6271-3. [DOI: 10.1039/c2cc32492j] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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24
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Happ B, Winter A, Hager MD, Schubert US. Photogenerated avenues in macromolecules containing Re(i), Ru(ii), Os(ii), and Ir(iii) metal complexes of pyridine-based ligands. Chem Soc Rev 2012; 41:2222-55. [DOI: 10.1039/c1cs15154a] [Citation(s) in RCA: 177] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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25
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Metal-containing polymers: Facile tuning of photophysical traits and emerging applications in organic electronics and photonics. Coord Chem Rev 2011. [DOI: 10.1016/j.ccr.2011.01.052] [Citation(s) in RCA: 217] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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26
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Keller JM, Glusac KD, Danilov EO, McIlroy S, Sreearuothai P, Cook AR, Jiang H, Miller JR, Schanze KS. Negative polaron and triplet exciton diffusion in organometallic "molecular wires". J Am Chem Soc 2011; 133:11289-98. [PMID: 21644580 DOI: 10.1021/ja202898p] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The dynamics of negative polaron and triplet exciton transport within a series of monodisperse platinum (Pt) acetylide oligomers is reported. The oligomers consist of Pt-acetylide repeats, [PtL(2)-C≡C-Ph-C≡C-](n) (where L = PBu(3) and Ph = 1,4-phenylene, n = 2, 3, 6, and 10), capped with naphthalene diimide (NDI) end groups. The Pt-acetylide segments are electro- and photoactive, and they serve as conduits for transport of electrons (negative polaron) and triplet excitons. The NDI end groups are relatively strong acceptors, serving as traps for the carriers. Negative polaron transport is studied by using pulse radiolysis/transient absorption at the Brookhaven National Laboratory Laser-Electron Accelerator Facility (LEAF). Electrons are rapidly attached to the oligomers, with some fraction initially residing upon the Pt-acetylide chains. The dynamics of transport are resolved by monitoring the spectral changes associated with transfer of electrons from the chain to the NDI end group. Triplet exciton transport is studied by femtosecond-picosecond transient absorption spectroscopy. Near-UV excitation leads to rapid production of triplet excitons localized on the Pt-acetylide chains. The excitons transport to the chain ends, where they are annihilated by charge separation with the NDI end group. The dynamics of triplet transport are resolved by transient absorption spectroscopy, taking advantage of the changes in spectra associated with decay of the triplet exciton and rise of the charge-separated state. The results indicate that negative polarons and excitons are transported rapidly, on average moving distances of ~3 nm in less than 200 ps. Analysis of the dynamics suggests diffusive transport by a site-to-site hopping mechanism with hopping times of ~27 ps for triplets and <10 ps for electrons.
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Affiliation(s)
- Julia M Keller
- Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, USA
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