1
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Riesebeck T, Strassner T. Phosphorescent Platinum(II) Complexes with a Spiro-fused Xanthene Unit: Synthesis and Photophysical Properties. Chemistry 2024; 30:e202304263. [PMID: 38450788 DOI: 10.1002/chem.202304263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Indexed: 03/08/2024]
Abstract
Novel platinum(II) complexes, derived from the spiro[fluorene-9,9'-xanthene] (SFX) motif, were synthesized and combined with different auxiliary ligands such as acetylacetonate (acac), bis(2,4,6-trimethylphenyl)propane-1,3-dionate (mesacac) and dihydrobis(3,5-dimethylpyrazole-1-yl) borate. The final products were obtained in yields of up to 36 % and characterized by NMR, X-ray and combustion analysis. These complexes have structured green-blue emission spectra with Commission Internationale de l'Éclairage (CIExy) coordinates of (0.21;0.46). Excellent photoluminescence quantum yields (PLQYs) ranging from 87 %-91 % were found. The emission lifetimes vary from 33 μs to 43 μs. Calculations on the B3LYP/6-311++G** level of theory reveal, that the nature of the emissive state is dependent on the positional regioisomerism of the SFX motif. The 2-SFX complexes demonstrate ligand-centered (3LC) emission, while the 2'-SFX regioisomer with the mesacac ligand shows a strong 3MLCT character.
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Affiliation(s)
- Tim Riesebeck
- Physikalische Organische Chemie, Technische Universität Dresden, Bergstraße 66, 01069, Dresden, Germany
| | - Thomas Strassner
- Physikalische Organische Chemie, Technische Universität Dresden, Bergstraße 66, 01069, Dresden, Germany
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2
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Li TY, Zheng SJ, Djurovich PI, Thompson ME. Two-Coordinate Thermally Activated Delayed Fluorescence Coinage Metal Complexes: Molecular Design, Photophysical Characters, and Device Application. Chem Rev 2024; 124:4332-4392. [PMID: 38546341 DOI: 10.1021/acs.chemrev.3c00761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/11/2024]
Abstract
Since the emergence of the first green light emission from a fluorescent thin-film organic light emitting diode (OLED) in the mid-1980s, a global consumer market for OLED displays has flourished over the past few decades. This growth can primarily be attributed to the development of noble metal phosphorescent emitters that facilitated remarkable gains in electrical conversion efficiency, a broadened color gamut, and vibrant image quality for OLED displays. Despite these achievements, the limited abundance of noble metals in the Earth's crust has spurred ongoing efforts to discover cost-effective electroluminescent materials. One particularly promising avenue is the exploration of thermally activated delayed fluorescence (TADF), a mechanism with the potential to fully harness excitons in OLEDs. Recently, investigations have unveiled TADF in a series of two-coordinate coinage metal (Cu, Ag, and Au) complexes. These organometallic TADF materials exhibit distinctive behavior in comparison to their organic counterparts. They offer benefits such as tunable emissive colors, short TADF emission lifetimes, high luminescent quantum yields, and reasonable stability. Impressively, both vacuum-deposited and solution-processed OLEDs incorporating these materials have achieved outstanding performance. This review encompasses various facets on two-coordinate TADF coinage metal complexes, including molecular design, photophysical characterizations, elucidation of structure-property relationships, and OLED applications.
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Affiliation(s)
- Tian-Yi Li
- Department of Chemistry, University of Science and Technology Beijing, Beijing 100083, China
| | - Shu-Jia Zheng
- Department of Chemistry, University of Science and Technology Beijing, Beijing 100083, China
| | - Peter I Djurovich
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, United States
| | - Mark E Thompson
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, United States
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3
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Yang J, Wang MM, Deng DP, Lin H, Su Y, Shao CX, Li SH, Yu ZH, Liu HK, Su Z. Consolidating Organometallic Complex Ir-CA Empowers Mitochondria-Directed Chemotherapy against Resistant Cancer via Stemness and Metastasis Inhibition. Inorg Chem 2024; 63:5235-5245. [PMID: 38452249 DOI: 10.1021/acs.inorgchem.4c00321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2024]
Abstract
Cancer treatment has faced severe obstacles due to the smart biological system of cancer cells. Herein, we report a three-in-one agent Ir-CA via attenuation of cancer cell stemness with the down-regulated biomarker CD133 expression from the mitochondria-directed chemotherapy. Over 80% of Ir-CA could accumulate in mitochondria, result in severe mitochondrial dysfunctions, and subsequently initiate mitophagy and cell cycle arrest to kill cisplatin-resistant A549R cells. In vitro and in vivo antimetastatic experiments demonstrated that Ir-CA can effectively inhibit metastasis with down-regulated MMP-2/MMP-9. RNA seq analysis and Western blotting indicated that Ir-CA also suppresses the GSTP1 expression to decrease the intracellular Pt-GS adducts, resulting in the detoxification and resensitization to cisplatin of A549R cells. In vivo evaluation indicated that Ir-CA restrains the tumor growth and has minimal side effects and superior biocompatibility. This work not only provides the first three-in-one agent to attenuate cancer cell stemness and simultaneously realize anticancer, antimetastasis, and conquer metallodrug resistance but also demonstrates the effectiveness of the mitochondria-directed strategy in cancer treatment.
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Affiliation(s)
- Jin Yang
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Meng-Meng Wang
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Dong-Ping Deng
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Hai Lin
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Yan Su
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
- Department of Rheumatology and Immunology, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
| | - Chen-Xu Shao
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Si-Hui Li
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Zheng-Hong Yu
- Department of Rheumatology and Immunology, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
| | - Hong-Ke Liu
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Zhi Su
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
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4
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Kitzmann WR, Bertrams MS, Boden P, Fischer AC, Klauer R, Sutter J, Naumann R, Förster C, Niedner-Schatteburg G, Bings NH, Hunger J, Kerzig C, Heinze K. Stable Molybdenum(0) Carbonyl Complex for Upconversion and Photoredox Catalysis. J Am Chem Soc 2023. [PMID: 37478053 DOI: 10.1021/jacs.3c03832] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/23/2023]
Abstract
Photoactive complexes with earth-abundant metals have attracted increasing interest in the recent years fueled by the promise of sustainable photochemistry. However, sophisticated ligands with complicated syntheses are oftentimes required to enable photoactivity with nonprecious metals. Here, we combine a cheap metal with simple ligands to easily access a photoactive complex. Specifically, we synthesize the molybdenum(0) carbonyl complex Mo(CO)3(tpe) featuring the tripodal ligand 1,1,1-tris(pyrid-2-yl)ethane (tpe) in two steps with a high overall yield. The complex shows intense deep-red phosphorescence with excited state lifetimes of several hundred nanoseconds. Time-resolved infrared spectroscopy and laser flash photolysis reveal a triplet metal-to-ligand charge-transfer (3MLCT) state as the lowest excited state. Temperature-dependent luminescence complemented by density functional theory (DFT) calculations suggest thermal deactivation of the 3MLCT state via higher lying metal-centered states in analogy to the well-known photophysics of [Ru(bpy)3]2+. Importantly, we found that the title compound is very photostable due to the lack of labilized Mo-CO bonds (as caused by trans-coordinated CO) in the facial configuration of the ligands. Finally, we show the versatility of the molybdenum(0) complex in two applications: (1) green-to-blue photon upconversion via a triplet-triplet annihilation mechanism and (2) photoredox catalysis for a green-light-driven dehalogenation reaction. Overall, our results establish tripodal carbonyl complexes as a promising design strategy to access stable photoactive complexes of nonprecious metals avoiding tedious multistep syntheses.
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Affiliation(s)
- Winald R Kitzmann
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Maria-Sophie Bertrams
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Pit Boden
- Department of Chemistry and State Research Center OPTIMAS, RPTU Kaiserslautern, Erwin-Schrödinger-Straße 52, 67663 Kaiserslautern-Landau, Germany
| | - Alexander C Fischer
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - René Klauer
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Johannes Sutter
- Max-Planck-Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Robert Naumann
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Christoph Förster
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Gereon Niedner-Schatteburg
- Department of Chemistry and State Research Center OPTIMAS, RPTU Kaiserslautern, Erwin-Schrödinger-Straße 52, 67663 Kaiserslautern-Landau, Germany
| | - Nicolas H Bings
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Johannes Hunger
- Max-Planck-Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Christoph Kerzig
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Katja Heinze
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
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5
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Rashid A, Mondal S, Ghosh P. Iridium(III) complex of fluorinated cyclometalating ligands and imidazolium-bipyridine as an effective lifetime based phosphates sensor. Inorganica Chim Acta 2023. [DOI: 10.1016/j.ica.2023.121453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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6
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Wang LX, Xiang J, Xiang D, Cheng SC, Leung CF, Ko CC, Xiang J. Multifunctional Luminescent Sensor Based on the Pb 2+ Complex Containing a Tetrazolato Ligand. Inorg Chem 2022; 61:16831-16840. [PMID: 36228087 DOI: 10.1021/acs.inorgchem.2c02783] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A series of luminescent Pb2+ complexes, [Pb(L1)2]n (1), [Pb(L2)2]n (2), [Pb(L3)(NO3)(H2O)2]n (3), [Pb(L3)(Br)(H2O)]n (4), [Pb(L3)(Cl)(H2O)]n (5), and [Pb(L4)(H2O)2] (6) have been synthesized by treatment of polydentate tetrazolato ligands with various hydrated Pb2+ salts (HL1 = 2-(1H-tetrazol-5-yl)pyridine, HL2 = 3-(1H-tetrazol-5-yl)isoquinoline, HL3 = 6-(1H-tetrazol-5-yl)-2,2'-bipyridine, and H2L4 = 6,6'-bis(1H-tetrazol-5-yl)-2,2'-bipyridine). These complexes have been characterized by IR, TGA, and elemental analysis. Their crystal structures have been determined by X-ray crystallography, and the phase purity of bulk samples were further confirmed by PXRD. Their luminescence properties have been investigated in detail, and their emission origin may involve ligand-centered π-π* transition, metal-centered s-p transition and charge-transfer character. It is interesting to note that 5 exhibits obviously enhanced red-shifted emission, whose photoluminescence quantum yield (PLQY = 16.5%) is much higher than the other compounds (≤2%). Most importantly, the emission property of 5 was strongly affected by temperature. When the temperature rises from 295 to 493 K, the emission maximum gradually shifts to high energy due to the loss of the aqua ligand. In contrast, when the temperature is lowered from 295 to 13 K, two emission bands were observed. The low-energy emission band exhibits a slight blue shift, while a new high-energy emission band appears at around 520 nm, which is assigned to ligand-centered phosphorescence. After removal of the coordinated aqua ligand, the emission of 5-H2O is very sensitive to the vapors of volatile primary amines and acids, although they have different response mechanisms. This result indicates that 5-H2O may be a potential multifunctional sensor for temperature, volatile amines, and acids. To decipher the emission origin, DFT calculations have also been carried out based on the structure units of these compounds.
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Affiliation(s)
- Li-Xin Wang
- College of Chemistry and Environmental Engineering, Yangtze University, Jingzhou, 434020 Hubei, P. R. China
| | - Jing Xiang
- College of Chemistry and Environmental Engineering, Yangtze University, Jingzhou, 434020 Hubei, P. R. China
| | - Dong Xiang
- College of Chemistry and Environmental Engineering, Yangtze University, Jingzhou, 434020 Hubei, P. R. China
| | - Shun-Cheung Cheng
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon Tong, 999077 Hong Kong, China
| | - Chi-Fai Leung
- Department of Science and Environmental Studies, The Education University of Hong Kong, 999077 Hong Kong, China
| | - Chi-Chiu Ko
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon Tong, 999077 Hong Kong, China
| | - Jing Xiang
- College of Chemistry and Environmental Engineering, Yangtze University, Jingzhou, 434020 Hubei, P. R. China
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7
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Riesebeck T, Bertrams MS, Stipurin S, Konowski K, Kerzig C, Strassner T. Cyclometalated Spirobifluorene Imidazolylidene Platinum(II) Complexes with Predominant 3LC Emissive Character and High Photoluminescence Quantum Yields. Inorg Chem 2022; 61:15499-15509. [PMID: 36125339 DOI: 10.1021/acs.inorgchem.2c02141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Two novel bidentate C^C*spiro cyclometalated platinum(II) complexes comprising a spiro-conjugated bifluorene ligand and different β-diketonate auxiliary ligands are synthesized and characterized. Their preparation employs a robust and elaborate synthetic protocol commencing with an N-heterocyclic carbene precursor. Structural characterization by means of NMR techniques and solid-state structures validate the proposed and herein presented molecular scaffolds. Photophysical studies, including laser flash photolysis methods, reveal an almost exclusively ligand-centered triplet state, governed by the C^C*spiro-NHC ligand. The high triplet energies and the long triplet lifetimes in the order of 30 μs in solution make the complexes good candidates for light-emitting diode-driven photocatalysis, as initial energy transfer experiments reveal. In-depth time-dependent density functional theory investigations are in excellent accordance with our spectroscopic findings. The title compounds are highly emissive in the bluish-green color region with quantum yields of up to 87% in solid-state measurements.
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Affiliation(s)
- Tim Riesebeck
- Physikalische Organische Chemie, Technische Universität Dresden, 01069 Dresden, Germany
| | | | - Sergej Stipurin
- Physikalische Organische Chemie, Technische Universität Dresden, 01069 Dresden, Germany
| | - Kai Konowski
- Physikalische Organische Chemie, Technische Universität Dresden, 01069 Dresden, Germany
| | - Christoph Kerzig
- Department of Chemistry, Johannes Gutenberg University, 55128 Mainz, Germany
| | - Thomas Strassner
- Physikalische Organische Chemie, Technische Universität Dresden, 01069 Dresden, Germany
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8
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Zhou F, Gu M, Chi Y. Azolate‐based osmium(II) complexes with luminescence spanning visible and near infrared region. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202200222] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Fan Zhou
- City University of Hong Kong Materials Science and Engineering HONG KONG
| | - Muhua Gu
- City University of Hong Kong Materials Sciences and Engineering HONG KONG
| | - Yun Chi
- City University of Hong Kong Materials Sciences and Engineering 83 Tat Chee Road, Kowloon Kowloon Tong HONG KONG
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9
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Abstract
In molecular photochemistry, charge-transfer emission is well understood and widely exploited. In contrast, luminescent metal-centered transitions only came into focus in recent years. This gave rise to strongly phosphorescent CrIII complexes with a d3 electronic configuration featuring luminescent metal-centered excited states which are characterized by the flip of a single spin. These so-called spin-flip emitters possess unique properties and require different design strategies than traditional charge-transfer phosphors. In this review, we give a brief introduction to ligand field theory as a framework to understand this phenomenon and outline prerequisites for efficient spin-flip emission including ligand field strength, symmetry, intersystem crossing and common deactivation pathways using CrIII complexes as instructive examples. The recent progress and associated challenges of tuning the energies of emissive excited states and of emerging applications of the unique photophysical properties of spin-flip emitters are discussed. Finally, we summarize the current state-of-the-art and challenges of spin-flip emitters beyond CrIII with d2, d3, d4 and d8 electronic configuration, where we mainly cover pseudooctahedral molecular complexes of V, Mo, W, Mn, Re and Ni, and highlight possible future research opportunities.
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10
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Xiang J, Wang LX, Zhang X, Zhu DS, Wang L, Liu LL, Leung CF, Xiang J. Effect of the dangling aromatic ring on neutral luminescent bis(phosphine) Cu( i)/Ag( i) complexes with the asymmetric pyridyl-tetrazolate ligands. RSC Adv 2022; 12:27267-27274. [PMID: 36276005 PMCID: PMC9511692 DOI: 10.1039/d2ra04684a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 09/13/2022] [Indexed: 11/22/2022] Open
Abstract
A series of neutral luminescent bis(phosphine) Cu(i) complexes of pyridyl-tetrazolate ligands (L1–L3) with the general formula [CuI(Ln)(P^P)] (1–6) were synthesized, which have been well characterized by IR, UV/vis, CV, 1H NMR and 31P NMR. For comparison, an Ag(i) complex [AgI(L2)(PPh3)2] (7) was also synthesized. The crystal structures of 2 and 7 have been further determined by X-ray crystallography. All these Cu(i) compounds show bright luminescence in the solid state with photoluminescence quantum yields (PLQYs) in the range of 25.8% to 85.0%. More interestingly, the Cu(i) complexes bearing an additional dangling aromatic ring on the diimine ligands exhibit enhanced luminescent performance in various solutions and their PLQYs are significantly higher than those of related Cu(i) complexes without steric protection. Compared with 1, the Cu(i) complexes with an additional dangling tetrazole moiety show a significant solvatochromic effect, which is uncommon for luminescent Cu(i) complexes. Moreover, [CuI(L2)(PPh3)2] (2) was further designed as an OLED material, which showed a high external quantum efficiency of 7.7%. The Cu(i) complex of a pyridyl-tetrazolate ligand exhibits enhanced luminescence, which was fabricated as an OLED device with an EQE of 7.7%.![]()
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Affiliation(s)
- Jing Xiang
- College of Chemistry and Environmental Engineering, Yangtze University, Jingzhou 434020, Hubei, P. R. China
| | - Li-Xin Wang
- College of Chemistry and Environmental Engineering, Yangtze University, Jingzhou 434020, Hubei, P. R. China
| | - Xu Zhang
- College of Chemistry and Environmental Engineering, Yangtze University, Jingzhou 434020, Hubei, P. R. China
| | - De-Sheng Zhu
- School of Physic and Optoelectronic Engineering, Yangtze University, Jingzhou 434020, Hubei, P. R. China
| | - Lei Wang
- Anhui Research Academy of Ecological and Environmental Sciences, Hefei, 230071, Anhui, P. R. China
| | - Lu-Lu Liu
- College of Chemistry and Environmental Engineering, Yangtze University, Jingzhou 434020, Hubei, P. R. China
| | - Chi-Fai Leung
- Department of Science and Environmental Studies, The Education University of Hong Kong, Hong Kong, China
| | - Jing Xiang
- College of Chemistry and Environmental Engineering, Yangtze University, Jingzhou 434020, Hubei, P. R. China
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11
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Gao J, Shi X, Luo Y, Zhang Z, Wang Y, Liang L, He G, Liu W, Tang D, Hu J. A promising strategy for increasing phosphorescent quantum yield: The ligand 10‐cyclic chelate of the tetradentate Pt(II) complex. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6539] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jiaxing Gao
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, School of Pharmacy, Sichuan Industrial Institute of Antibiotics, Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education Department Chengdu University Chengdu China
| | - Xiaodong Shi
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, School of Pharmacy, Sichuan Industrial Institute of Antibiotics, Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education Department Chengdu University Chengdu China
| | - Yafei Luo
- Collaborative Innovation Center of Targeted Therapeutics and Innovation, Chongqing Key Laboratory of Kinase Modulators As Innovative Medicine, Chongqing Engineering Laboratory of Targeted and Innovative Therapeutics, International Academy of Targeted Therapeutics and Innovation Chongqing University of Arts and Sciences Chongqing China
| | - Zelan Zhang
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, School of Pharmacy, Sichuan Industrial Institute of Antibiotics, Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education Department Chengdu University Chengdu China
| | - Yueteng Wang
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, School of Pharmacy, Sichuan Industrial Institute of Antibiotics, Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education Department Chengdu University Chengdu China
| | - Li Liang
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, School of Pharmacy, Sichuan Industrial Institute of Antibiotics, Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education Department Chengdu University Chengdu China
| | - Gang He
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, School of Pharmacy, Sichuan Industrial Institute of Antibiotics, Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education Department Chengdu University Chengdu China
| | - Wei Liu
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, School of Pharmacy, Sichuan Industrial Institute of Antibiotics, Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education Department Chengdu University Chengdu China
| | - Dianyong Tang
- Collaborative Innovation Center of Targeted Therapeutics and Innovation, Chongqing Key Laboratory of Kinase Modulators As Innovative Medicine, Chongqing Engineering Laboratory of Targeted and Innovative Therapeutics, International Academy of Targeted Therapeutics and Innovation Chongqing University of Arts and Sciences Chongqing China
| | - Jianping Hu
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, School of Pharmacy, Sichuan Industrial Institute of Antibiotics, Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education Department Chengdu University Chengdu China
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12
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Buil ML, Esteruelas MA, López AM. Recent Advances in Synthesis of Molecular Heteroleptic Osmium and Iridium Phosphorescent Emitters. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100663] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- María L. Buil
- Departamento de Química Inorgánica Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) Centro de Innovación en Química Avanzada (ORFEO-CINQA) Universidad de Zaragoza-CSIC 50009 Zaragoza Spain
| | - Miguel A. Esteruelas
- Departamento de Química Inorgánica Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) Centro de Innovación en Química Avanzada (ORFEO-CINQA) Universidad de Zaragoza-CSIC 50009 Zaragoza Spain
| | - Ana M. López
- Departamento de Química Inorgánica Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) Centro de Innovación en Química Avanzada (ORFEO-CINQA) Universidad de Zaragoza-CSIC 50009 Zaragoza Spain
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13
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Cnudde M, Brünink D, Doltsinis NL, Strassert CA. Tetradentate N^N°N^N-type luminophores for Pt(II) complexes: Synthesis, photophysical and quantum-chemical investigation. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2020.120090] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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14
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Cancela L, Esteruelas MA, Galbán J, Oliván M, Oñate E, Vélez A, Vidal JC. Electronic Communication in Binuclear Osmium- and Iridium-Polyhydrides. Inorg Chem 2021; 60:2783-2796. [PMID: 33543934 PMCID: PMC9179948 DOI: 10.1021/acs.inorgchem.0c03680] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
![]()
Reactions of polyhydrides OsH6(PiPr3)2 (1)
and IrH5(PiPr3)2 (2) with rollover cyclometalated
hydride complexes have been investigated in order to explore the influence
of a metal center on the MHn unit of the
other in mixed valence binuclear polyhydrides. Hexahydride 1 activates an ortho-CH bond of the heterocyclic
moiety of the trihydride metal–ligand compounds OsH3{κ2-C,N-[C5RH2N-py]}(PiPr3)2 (R = H (3), Me (4), Ph (5)). Reactions of 3 and 4 lead to the hexahydrides
(PiPr3)2H3Os{μ-[κ2-C,N-[C5RH2N-C5H3N]-N,C-κ2]}OsH3(PiPr3)2 (R = H (6), Me (7)),
whereas 5 gives the pentahydride (PiPr3)2H3Os{μ-[κ2-C,N-[C5H3N-C5(C6H4)H2N]-C,N,C-κ3]}OsH2(PiPr3)2 (8).
Pentahydride 2 promotes C—H bond activation of 3 and the iridium-dihydride IrH2{κ2-C,N-[C5H3N-py]}(PiPr3)2 (9)
to afford the heterobinuclear pentahydride (PiPr3)2H3Os{μ-[κ2-C,N-[C5H3N-C5H3N]-N,C-κ2]}IrH2(PiPr3)2 (10) and the homobinuclear tetrahydride (PiPr3)2H2Ir{μ-[κ2-C,N-[C5H3N-C5H3N]-N,C-κ2]}IrH2(PiPr3)2 (11), respectively. Complexes 6–8 and 11 display HOMO delocalization
throughout the metal–heterocycle-metal skeleton. Their sequential
oxidation generates mono- and diradicals, which exhibit intervalence
charge transfer transitions. This notable ability allows the tuning
of the strength of the hydrogen–hydrogen and metal–hydrogen
interactions within the MHn units. The influence of a metal center on the
MHn unit of the other in binuclear osmium-
and iridium-polyhydride
complexes bearing rollover cyclometalated bipyridines as a bridging
ligand has been studied.
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Affiliation(s)
- Lara Cancela
- Departamento de Química Inorgánica - Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) - Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza - CSIC, 50009 Zaragoza, Spain
| | - Miguel A Esteruelas
- Departamento de Química Inorgánica - Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) - Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza - CSIC, 50009 Zaragoza, Spain
| | - Javier Galbán
- Departamento de Química Analítica, Facultad de Ciencias - Instituto de Nanociencia de Aragón (INA-ICMA), Universidad de Zaragoza, 50009 Zaragoza, Spain
| | - Montserrat Oliván
- Departamento de Química Inorgánica - Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) - Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza - CSIC, 50009 Zaragoza, Spain
| | - Enrique Oñate
- Departamento de Química Inorgánica - Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) - Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza - CSIC, 50009 Zaragoza, Spain
| | - Andrea Vélez
- Departamento de Química Inorgánica - Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) - Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza - CSIC, 50009 Zaragoza, Spain
| | - Juan C Vidal
- Grupo de Espectroscopia Analítica y Sensores (GEAS) - Instituto de Investigación en Ciencias Ambientales de Aragón (IUCA), Universidad de Zaragoza, 50009 Zaragoza, Spain
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15
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Rajakannu P, Kim HS, Lee W, Kumar A, Lee MH, Yoo S. Naphthalene Benzimidazole Based Neutral Ir(III) Emitters for Deep Red Organic Light-Emitting Diodes. Inorg Chem 2020; 59:12461-12470. [PMID: 32852204 DOI: 10.1021/acs.inorgchem.0c01561] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Rigid naphthalene benzimidazole (NBI) based ligands (L1 and L2) are synthesized and utilized to make deep red phosphorescent cyclometalated iridium(III) complexes ([Ir(NBI)2(PyPzCF3)] (1) and [Ir(DPANBI)2(PyPzCF3)] (2)). Complexes 1 and 2 are prepared from the reaction of L1/L2 with the aid of ancillary ligands (PyPzCF3, 2-(3-(trifluoromethyl)-1H-pyrazol-5-yl)pyridine) in a two step method. The complexes are characterized by analytical and spectroscopic methods, as well as X-ray diffraction for 1. These complexes show a strong emission in the range of 635-700 nm that extends up to the near-infrared region (800 nm). The introduction of the diphenylamino (DPA) donor group on the naphthalene unit leads to a further red-shift in the emission. The complexes exhibit radiative quantum efficiency (ΦPL) of 0.27-0.29 in poly(methylmethacrylate) film and relatively short phosphorescence decay lifetimes (τ = 1.1-3.5 μs). The structural, electronic, and optical properties are investigated with the support of density functional theory (DFT) and time-dependent-DFT calculations. The calculation results indicate that the lowest-lying triplet (T1) excited state of 1 has a mixed metal-to-ligand charge transfer (3MLCT) and ligand-centered (3LC) character, while 2 shows a dominant 3LC character. Deep red-emitting organic light-emitting diodes fabricated using 1 as a dopant display a maximum external quantum efficiency of 10.9% with the CIE color coordinates of (0.690, 0.294), with an emission centered at 644 and 700 nm. Similarly, the emitter 2 also shows a maximum external quantum efficiency of 6.9% with emissions at 657 and 722 nm.
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Affiliation(s)
- Palanisamy Rajakannu
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Hyung Suk Kim
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Woochan Lee
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Ajay Kumar
- Department of Chemistry, University of Ulsan, Ulsan 44610, Republic of Korea
| | - Min Hyung Lee
- Department of Chemistry, University of Ulsan, Ulsan 44610, Republic of Korea
| | - Seunghyup Yoo
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
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16
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Chen XW, Yuan HL, He LH, Chen JL, Liu SJ, Wen HR, Zhou G, Wang JY, Wong WY. A Sublimable Dinuclear Cuprous Complex Showing Selective Luminescence Vapochromism in the Crystalline State. Inorg Chem 2019; 58:14478-14489. [DOI: 10.1021/acs.inorgchem.9b01972] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Xing-Wei Chen
- School of Chemistry and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, 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
| | - Hua-Li Yuan
- School of Chemistry and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, People’s Republic of China
| | - Li-Hua He
- School of Chemistry and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, People’s Republic of China
| | - Jing-Lin Chen
- School of Chemistry and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, 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
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, People’s Republic of China
| | - Sui-Jun Liu
- School of Chemistry and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, People’s Republic of China
| | - He-Rui Wen
- School of Chemistry and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, People’s Republic of China
| | - Guijiang Zhou
- MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, State Key Laboratory for Mechanical Behavior of Materials, Department of Chemistry, Faculty of Science, Xi’an Jiaotong University, Xi’an 710049, People’s Republic of China
| | - Jin-Yun Wang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, People’s Republic of China
| | - Wai-Yeung Wong
- 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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17
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Sethi S, Jena S, Das PK, Behera N. Synthetic approach and structural diversities of pyridylpyrazole derived late transition metal complexes. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.04.112] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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18
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Ho PY, Cheng SC, Yiu SM, Au VKM, Xiang J, Leung CF, Ko CC. The Important Role of Coordination Geometry on Photophysical Properties of Blue-Green Emitting Ruthenium(II) Diisocyano Complexes Bearing 2-Benzoxazol-2-ylphenolate. Inorg Chem 2019; 58:11372-11381. [PMID: 31411456 DOI: 10.1021/acs.inorgchem.9b00560] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
A series of blue-green emitting RuII diisocyano complexes containing 2-benzoxazol-2-ylphenolate (PBO) have been prepared. The complexes were isolated under varied reaction conditions in two isomeric forms, i.e., trans,trans,trans- (1) and cis,trans,cis- (2), with varied ligand coordination geometry above the RuII center. The photoluminescence of the isomeric complexes has been compared and tuned by the systematic variation of the electronic properties of the isocyanides. The cis,trans,cis- isomers exhibit structureless emission in the blue-green region (471-517 nm) upon excitation at λex > 400 nm in dichloromethane solution at room temperature. Both isomeric forms show similarly structured greenish emission at 499-523 nm on excitation at λex > 355 nm in a methanol/ethanol (4:1) glassy medium at 77 K. On careful comparison with the corresponding absorption and electrochemical data, it is suggested that the solution emission of the cis,trans,cis- isomers (2) at room temperature is originated from the metal-to-ligand charge transfer (MLCT), while a ligand-centered (LC) parentage is assigned for the emission in a glassy state for both isomeric forms. In line with the above experimental results, DFT calculation demonstrates the change in the nature and relative energy of the HOMOs and LUMOs with respect to the varied ligand coordination geometry and π-accepting ability of the isocyanides.
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Affiliation(s)
- Pui-Yu Ho
- Department of Science and Environmental Studies , The Education University of Hong Kong , 10 Lo Ping Road , Tai Po , New Territories, Hong Kong , China
| | - Shun-Cheung Cheng
- Department of Chemistry , City University of Hong Kong , Tat Chee Avenue , Kowloon , Hong Kong , China
| | - Shek-Man Yiu
- Department of Chemistry , City University of Hong Kong , Tat Chee Avenue , Kowloon , Hong Kong , China
| | - Vonika Ka-Man Au
- Department of Science and Environmental Studies , The Education University of Hong Kong , 10 Lo Ping Road , Tai Po , New Territories, Hong Kong , China
| | - Jing Xiang
- School of Chemical and Environmental Engineering , Yangtze University , JingZhou , China
| | - Chi-Fai Leung
- Department of Science and Environmental Studies , The Education University of Hong Kong , 10 Lo Ping Road , Tai Po , New Territories, Hong Kong , China
| | - Chi-Chiu Ko
- Department of Chemistry , City University of Hong Kong , Tat Chee Avenue , Kowloon , Hong Kong , China
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19
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Triazine-Acceptor-Based Green Thermally Activated Delayed Fluorescence Materials for Organic Light-Emitting Diodes. MATERIALS 2019; 12:ma12162646. [PMID: 31434302 PMCID: PMC6720441 DOI: 10.3390/ma12162646] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2019] [Revised: 08/13/2019] [Accepted: 08/19/2019] [Indexed: 11/17/2022]
Abstract
High-efficiency thermally activated delayed fluorescence (TADF) is leading the third-generation technology of organic light-emitting diodes (OLEDs). TADF emitters are designed and synthesized using inexpensive organic donor and acceptor derivatives. TADF emitters are a potential candidate for next-generation display technology when compared with metal-complex-based phosphorescent dopants. Many studies are being conducted to enhance the external quantum efficiencies (EQEs) and photoluminescent quantum yield of green TADF devices. Blue TADF reached an EQE of over 35% with the support of suitable donor and acceptor moieties based on a suitable molecular design. The efficiencies of green TADF emitters can be improved when an appropriate molecular design is applied with an efficient device structure. The triazine acceptor has been identified as a worthy building block for green TADF emitters. Hence, we present here a review of triazine with various donor molecules and their device performances. This will help to design more suitable and efficient green TADF emitters for OLEDs.
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20
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Holub J, Santoro A, Lehn JM. Electronic absorption and emission properties of bishydrazone [2 × 2] metallosupramolecular grid-type architectures. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2019.05.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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21
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Topchiy MA, Dzhevakov PB, Kirilenko NY, Rzhevskiy SA, Ageshina AA, Khrustalev VN, Paraschuk DY, Bermeshev MV, Nechaev MS, Asachenko AF. Cyclometallated 1,2,3-triazol-5-ylidene iridium(III) complexes: synthesis, structure, and photoluminescence properties. MENDELEEV COMMUNICATIONS 2019. [DOI: 10.1016/j.mencom.2019.03.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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22
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Bar M, Deb S, Mukherjee S, Baitalik S. Stimuli-Responsive Near-Infrared Emissive Os(II)-Terpyridine Complexes with a Sense of Logic. ACS OMEGA 2019; 4:2241-2255. [PMID: 31459466 PMCID: PMC6649268 DOI: 10.1021/acsomega.8b03083] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 01/14/2019] [Indexed: 06/10/2023]
Abstract
Two bis-tridentate Os(II) compounds based on a heteroditopic terpyridine-bipyridine-type ligand were synthesized, and their photophysical properties were thoroughly studied. The compounds exhibit strong spin-allowed 1MLCT bands in the visible domain (489-521 nm) as well as weak 1GS to 3MLCT bands within the 668-815 nm domain. The compounds display strong luminescence from the 3MLCT state in the near-infrared domain (728-780 nm) at room temperature having lifetimes in the range of 20.0-171.0 ns. After coordination of [Os(tpy-PhCH3/H2pbbzim)2]2+ unit to the terpyridine site of tpy-Hbzim-dipy, the complexes offer vacant pyridine-imidazole motifs for interacting with cationic and anionic guests. Consequently, photophysical properties of the compounds were tuned to a great extent upon interaction with selected cations, anions, pH, as well as protons. Anion-induced alteration of the ground- and excited-state properties of the compound lead to recognition of specific anions in solution. Significant change in the optical spectral behaviors as well as switching of emission spectral properties of the compounds was done in the NIR region upon treating with anions, cations, protons, and solvents (dichloromethane, acetonitrile, methanol, dimethylsulfoxide, and water). Moreover, the optical outputs in response to external stimuli were used to demonstrate binary functions of two-input IMPLICATION, NOR, and XNOR logic gates.
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23
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Xiang J, Cheng SC, Jin XX, Su QQ, Zhou X, Chu WK, Leung CF, Ko CC. Polynuclear Cu(i) and Ag(i) phosphine complexes containing multi-dentate polytopic ligands: syntheses, crystal structures and photoluminescence properties. Dalton Trans 2019; 48:741-750. [PMID: 30560254 DOI: 10.1039/c8dt03377c] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of polynuclear metal complexes, [Cu2(L1)(PPh3)4](ClO4)2 (1), [Cu3(L2)(PPh3)6](ClO4) (2), [Cu3(L3)(PPh3)6] (3), [Ag2(L1)(PPh3)4](BF4)2 (4), [Ag4(L2)2(PPh3)6] (5) and [Ag3(L3)(PPh3)5] (6), have been obtained from the reactions of the highly conjugated bridging ligands 2,3-bis(2-pyridyl)pyrazine (L1), 2,3-bis(2-tetrazoyl)pyrazine (H2L2) and 2,3-bis(2-tetrazoyl)imidazole (H3L3) with [Cu(MeCN)4]ClO4 and AgBF4, respectively. Their crystal structures have been determined by X-ray crystallography and their photophysical properties have been investigated in detail. Complexes 1 and 3 show photoluminescence in CH2Cl2 solution, while all the complexes exhibit obvious luminescence in the solid state; detailed photophysical studies and density functional theory calculations of these complexes have revealed that their lowest energy absorptions and emissions are predominantly derived from either metal-to-ligand charge-transfer (MLCT) or intraligand (IL) excited states.
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Affiliation(s)
- Jing Xiang
- College of Chemistry and Environmental Engineering, Yangtze University, Jingzhou 434020, Hubei, P. R. China.
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24
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Ali BA, Sharmoukh W, Elnagar MM, Hassan ZM, Allam NK. Experimental and density functional theory insights into the effect of withdrawing ligands on the fluorescence yield of Ru(II)-based complexes. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4677] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Basant A. Ali
- Energy Materials Laboratory (EML), School of Sciences and Engineering; The American University in Cairo; New Cairo 11835 Egypt
| | - Walid Sharmoukh
- Inorganic Chemistry Department; National Research Centre; Tahrir St, Dokki Giza 12622 Egypt
| | - Mohamed M. Elnagar
- Inorganic Chemistry Department; National Research Centre; Tahrir St, Dokki Giza 12622 Egypt
| | - Zeinab M. Hassan
- Chemistry Department; Fayoum University, Faculty of Science; Fayoum Egypt
| | - Nageh K. Allam
- Energy Materials Laboratory (EML), School of Sciences and Engineering; The American University in Cairo; New Cairo 11835 Egypt
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25
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Synthesis, photo- and electro-luminescence of dinuclear Ir(III) complexes containing bis-β-diketonate carbazole ligand. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.09.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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26
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Teixeira Veiga E, Vidal Müller A, Duarte Ramos L, Passalacqua Morelli Frin K, Sarto Polo A. Interrelationship between the Ancillary Ligand Structure, Acid–Base Properties, and TiO
2
Surface Coverage of Ru
II
Dyes. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201701476] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Elaine Teixeira Veiga
- Centro de Ciências Naturais e Humanas Universidade Federal do ABC ‐ UFABC Av. dos Estados, 5001 09210‐580 Santo André SP Brazil
| | - Andressa Vidal Müller
- Centro de Ciências Naturais e Humanas Universidade Federal do ABC ‐ UFABC Av. dos Estados, 5001 09210‐580 Santo André SP Brazil
| | - Luiz Duarte Ramos
- Centro de Ciências Naturais e Humanas Universidade Federal do ABC ‐ UFABC Av. dos Estados, 5001 09210‐580 Santo André SP Brazil
| | - Karina Passalacqua Morelli Frin
- Centro de Ciências Naturais e Humanas Universidade Federal do ABC ‐ UFABC Av. dos Estados, 5001 09210‐580 Santo André SP Brazil
| | - André Sarto Polo
- Centro de Ciências Naturais e Humanas Universidade Federal do ABC ‐ UFABC Av. dos Estados, 5001 09210‐580 Santo André SP Brazil
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27
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Ma D, Zhang C, Liu R, Qiu Y, Duan L. Toward High-Performance Vacuum-Deposited OLEDs: Sublimable Cationic Iridium(III) Complexes with Yellow and Orange Electroluminescence. Chemistry 2018; 24:5574-5583. [DOI: 10.1002/chem.201705559] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Indexed: 12/31/2022]
Affiliation(s)
- Dongxin Ma
- Key Lab of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Department of Chemistry; Tsinghua University; Beijing 100084 P. R. China
| | - Chen Zhang
- Key Lab of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Department of Chemistry; Tsinghua University; Beijing 100084 P. R. China
| | - Ruihuan Liu
- Key Lab of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Department of Chemistry; Tsinghua University; Beijing 100084 P. R. China
| | - Yong Qiu
- Key Lab of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Department of Chemistry; Tsinghua University; Beijing 100084 P. R. China
| | - Lian Duan
- Key Lab of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Department of Chemistry; Tsinghua University; Beijing 100084 P. R. China
- Center for Flexible Electronics Technology; Tsinghua University; Beijing 100084 P. R. China
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28
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Liu X, Liu Y, Yu T, Su W, Niu Y, Li Y, Zhao Y, Zhang H. Efficient green phosphorescent Ir(iii) complexes with β-diketonate ancillary ligands. Inorg Chem Front 2018. [DOI: 10.1039/c8qi00489g] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Three new iridium complexes with β-diketonate ancillary ligands were synthesized as emissive materials for organic light-emitting devices.
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Affiliation(s)
- Xiaoxiao Liu
- Key Laboratory of Opto-Electronic Technology and Intelligent Control (Ministry of Education)
- Lanzhou Jiaotong University
- Lanzhou 730070
- China
- School of Mechatronic Engineering
| | - Ying Liu
- Printable electronics research center
- Suzhou Institute of Nano-Tech and Nano-Bionics
- Chinese Academy of Sciences
- Suzhou 215123
- China
| | - Tianzhi Yu
- Key Laboratory of Opto-Electronic Technology and Intelligent Control (Ministry of Education)
- Lanzhou Jiaotong University
- Lanzhou 730070
- China
| | - Wenming Su
- Printable electronics research center
- Suzhou Institute of Nano-Tech and Nano-Bionics
- Chinese Academy of Sciences
- Suzhou 215123
- China
| | - Yuying Niu
- Key Laboratory of Opto-Electronic Technology and Intelligent Control (Ministry of Education)
- Lanzhou Jiaotong University
- Lanzhou 730070
- China
| | - Yanmei Li
- Key Laboratory of Opto-Electronic Technology and Intelligent Control (Ministry of Education)
- Lanzhou Jiaotong University
- Lanzhou 730070
- China
| | - Yuling Zhao
- Key Laboratory of Opto-Electronic Technology and Intelligent Control (Ministry of Education)
- Lanzhou Jiaotong University
- Lanzhou 730070
- China
| | - Hui Zhang
- Key Laboratory of Opto-Electronic Technology and Intelligent Control (Ministry of Education)
- Lanzhou Jiaotong University
- Lanzhou 730070
- China
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29
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30
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Moitra T, Alam MM, Chakrabarti S. Intersystem crossing rate dependent dual emission and phosphorescence from cyclometalated platinum complexes: a second order cumulant expansion based approach. Phys Chem Chem Phys 2018; 20:23244-23251. [DOI: 10.1039/c8cp03111h] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Cumulant expansion technique has been used to unravel the microscopic origin of phosphorescence and dual emission from cyclometalated platinum complexes.
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Affiliation(s)
- Torsha Moitra
- Department of Chemistry
- University of Calcutta
- Kolkata – 700009
- India
| | - Md Mehboob Alam
- Hylleraas Centre for Quantum Molecular Sciences
- Department of Chemistry
- University of Tromsø – The Arctic University of Norway
- Tromsø
- Norway
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31
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Chi Y, Chang TK, Ganesan P, Rajakannu P. Emissive bis-tridentate Ir(III) metal complexes: Tactics, photophysics and applications. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2016.11.016] [Citation(s) in RCA: 97] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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32
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Ross DAW, Scattergood PA, Babaei A, Pertegás A, Bolink HJ, Elliott PIP. Luminescent osmium(ii) bi-1,2,3-triazol-4-yl complexes: photophysical characterisation and application in light-emitting electrochemical cells. Dalton Trans 2017; 45:7748-57. [PMID: 27055067 DOI: 10.1039/c6dt00830e] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The series of osmium(ii) complexes [Os(bpy)3-n(btz)n][PF6]2 (bpy = 2,2'-bipyridyl, btz = 1,1'-dibenzyl-4,4'-bi-1,2,3-triazolyl, n = 0, n = 1, n = 2, n = 3), have been prepared and characterised. The progressive replacement of bpy by btz leads to blue-shifted UV-visible electronic absorption spectra, indicative of btz perturbation of the successively destabilised bpy-centred LUMO. For , a dramatic blue-shift relative to the absorption profile for is observed, indicative of the much higher energy LUMO of the btz ligand over that of bpy, mirroring previously reported data on analogous ruthenium(ii) complexes. Unlike the previously reported ruthenium systems, heteroleptic complexes and display intense emission in the far-red/near-infrared (λmax = 724 and 713 nm respectively in aerated acetonitrile at RT) as a consequence of higher lying, and hence less thermally accessible, (3)MC states. This assertion is supported by ground state DFT calculations which show that the dσ* orbitals of to are destabilised by between 0.60 and 0.79 eV relative to their Ru(ii) analogues. The homoleptic complex appears to display extremely weak room temperature emission, but on cooling to 77 K the complex exhibits highly intense blue emission with λmax 444 nm. As complexes to display room temperature luminescent emission and readily reversible Os(ii)/(iii) redox couples, light-emitting electrochemical cell (LEC) devices were fabricated. All LECs display electroluminescent emission in the deep-red/near-IR (λmax = 695 to 730 nm). Whilst devices based on and show inferior current density and luminance than LECs based on , the device utilising shows the highest external quantum efficiency at 0.3%.
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Affiliation(s)
- Daniel A W Ross
- Department of Chemistry, University of Huddersfield, Queensgate, Huddersfield, HD1 3DH, UK.
| | - Paul A Scattergood
- Department of Chemistry, University of Huddersfield, Queensgate, Huddersfield, HD1 3DH, UK.
| | - Azin Babaei
- Instituto de Ciencia Molecular (ICMol), Universidad de Valencia, C/ Catedrático José Beltrán, 2, 46980 Paterna, Spain.
| | - Antonio Pertegás
- Instituto de Ciencia Molecular (ICMol), Universidad de Valencia, C/ Catedrático José Beltrán, 2, 46980 Paterna, Spain.
| | - Henk J Bolink
- Instituto de Ciencia Molecular (ICMol), Universidad de Valencia, C/ Catedrático José Beltrán, 2, 46980 Paterna, Spain.
| | - Paul I P Elliott
- Department of Chemistry, University of Huddersfield, Queensgate, Huddersfield, HD1 3DH, UK.
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33
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Hu LL, Shen C, Chu WK, Xiang J, Yu F, Xiang G, Nie Y, Kwok CL, Leung CF, Ko CC. Synthesis, structures and photophysical properties of Cu(I) phosphine complexes with various diimine ligands. Polyhedron 2017. [DOI: 10.1016/j.poly.2017.01.046] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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34
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Alabau RG, Esteruelas MA, Oliván M, Oñate E. Preparation of Phosphorescent Osmium(IV) Complexes with N,N′,C- and C,N,C′-Pincer Ligands. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00193] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Roberto G. Alabau
- Departamento de Química
Inorgánica-Instituto de Síntesis Química y Catálisis
Homogénea (ISQCH)-Centro de Innovación en Química
Avanzada (ORFEO-CINQA), Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Miguel A. Esteruelas
- Departamento de Química
Inorgánica-Instituto de Síntesis Química y Catálisis
Homogénea (ISQCH)-Centro de Innovación en Química
Avanzada (ORFEO-CINQA), Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Montserrat Oliván
- Departamento de Química
Inorgánica-Instituto de Síntesis Química y Catálisis
Homogénea (ISQCH)-Centro de Innovación en Química
Avanzada (ORFEO-CINQA), Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Enrique Oñate
- Departamento de Química
Inorgánica-Instituto de Síntesis Química y Catálisis
Homogénea (ISQCH)-Centro de Innovación en Química
Avanzada (ORFEO-CINQA), Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
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35
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Abstract
Phosphorescence is a phenomenon of delayed luminescence that corresponds to the radiative decay of the molecular triplet state. As a general property of molecules, phosphorescence represents a cornerstone problem of chemical physics due to the spin prohibition of the underlying triplet-singlet emission and because its analysis embraces a deep knowledge of electronic molecular structure. Phosphorescence is the simplest physical process which provides an example of spin-forbidden transformation with a characteristic spin selectivity and magnetic field dependence, being the model also for more complicated chemical reactions and for spin catalysis applications. The bridging of the spin prohibition in phosphorescence is commonly analyzed by perturbation theory, which considers the intensity borrowing from spin-allowed electronic transitions. In this review, we highlight the basic theoretical principles and computational aspects for the estimation of various phosphorescence parameters, like intensity, radiative rate constant, lifetime, polarization, zero-field splitting, and spin sublevel population. Qualitative aspects of the phosphorescence phenomenon are discussed in terms of concepts like structure-activity relationships, donor-acceptor interactions, vibronic activity, and the role of spin-orbit coupling under charge-transfer perturbations. We illustrate the theory and principles of computational phosphorescence by highlighting studies of classical examples like molecular nitrogen and oxygen, benzene, naphthalene and their azaderivatives, porphyrins, as well as by reviewing current research on systems like electrophosphorescent transition metal complexes, nucleobases, and amino acids. We furthermore discuss modern studies of phosphorescence that cover topics of applied relevance, like the design of novel photofunctional materials for organic light-emitting diodes (OLEDs), photovoltaic cells, chemical sensors, and bioimaging.
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Affiliation(s)
- Gleb Baryshnikov
- Division of Theoretical Chemistry and Biology, Royal Institute of Technology , SE-106 91 Stockholm, Sweden.,Bohdan Khmelnytsky National University , 18031 Cherkasy, Ukraine
| | - Boris Minaev
- Division of Theoretical Chemistry and Biology, Royal Institute of Technology , SE-106 91 Stockholm, Sweden.,Bohdan Khmelnytsky National University , 18031 Cherkasy, Ukraine
| | - Hans Ågren
- Division of Theoretical Chemistry and Biology, Royal Institute of Technology , SE-106 91 Stockholm, Sweden.,Institute of Nanotechnology, Spectroscopy and Quantum Chemistry, Siberian Federal University , Svobodny pr. 79, 660041 Krasnoyarsk, Russia
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36
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Li Z, Yu L, Yuan J, Ye Y, He Y, Huang B, Gao X. 8-Hydroxy Quinoline Derivatives as Auxiliary Ligands for Red-Emitting Cyclic-Platinum Phosphorescent Complexes: Synthesis and Properties. Helv Chim Acta 2017. [DOI: 10.1002/hlca.201600308] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Zhimei Li
- Department of Chemistry; Nanchang University; 999 Xuefu Road Nanchang 330031 P. R. China
| | - Liming Yu
- Department of Chemistry; Nanchang University; 999 Xuefu Road Nanchang 330031 P. R. China
| | - Junshuo Yuan
- Department of Chemistry; Nanchang University; 999 Xuefu Road Nanchang 330031 P. R. China
| | - Yiteng Ye
- Department of Chemistry; Nanchang University; 999 Xuefu Road Nanchang 330031 P. R. China
- School of Petroleum and Chemical Engineering; Qinzhou University; 12 Coastal Avenue Qinzhou 535000 P. R. China
| | - Yanbo He
- Department of Chemistry; Nanchang University; 999 Xuefu Road Nanchang 330031 P. R. China
| | - Bin Huang
- School of Chemistry and Chemical Engineering; Sunyat-Sen University; No. 135, Xingang Xi Road Guangzhou 510275 P. R. China
| | - Xicun Gao
- Department of Chemistry; Nanchang University; 999 Xuefu Road Nanchang 330031 P. R. China
- School of Petroleum and Chemical Engineering; Qinzhou University; 12 Coastal Avenue Qinzhou 535000 P. R. China
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37
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Hsu CW, Ly KT, Lee WK, Wu CC, Wu LC, Lee JJ, Lin TC, Liu SH, Chou PT, Lee GH, Chi Y. Triboluminescence and Metal Phosphor for Organic Light-Emitting Diodes: Functional Pt(II) Complexes with Both 2-Pyridylimidazol-2-ylidene and Bipyrazolate Chelates. ACS APPLIED MATERIALS & INTERFACES 2016; 8:33888-33898. [PMID: 27960361 DOI: 10.1021/acsami.6b12707] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We report the utilization of both pyrid-2-yl-imidazolylidene and dianionic bipz chelates as constituents in syntheses of a new series of charge-neutral Pt(II) complexes 1-4, among which complex 4 revealed remarkable triboluminescence, i.e., generation of photoemission upon grinding or cracking of the solid sample. The triboluminescence is found to be sensitive to the subtle changes of the associated substituents of pyrid-2-yl-imidazolylidene chelate, as verified by the disappearance of the triboluminescence for complexes 1-3. Alternatively, the well-ordered solid packing of 3, as indicated by the grazing incidence X-ray scattering experiment, serves as an ideal emitter for the fabrication of highly efficient OLEDs, rendering high external quantum efficienciy (25.9%) and luminesce efficiency (90 cd A-1) at the practical brightness of 100 cd m-2. The rather low roll-off in efficiency (24.4%, 85 cd A-1 at high brightness of 1000 cd m-2) is attributed to the short excited-state lifetime of 3 (∼800 ns) in the solid state, which in turn is associated with the MMLCT transition character.
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Affiliation(s)
- Che-Wei Hsu
- Department of Chemistry, National Tsing Hua University , Hsinchu 30013, Taiwan
| | - Kiet Tuong Ly
- Department of Chemistry, National Tsing Hua University , Hsinchu 30013, Taiwan
| | | | | | - Lai-Chin Wu
- Synchrotron Radiation Research Center , Hsinchu 30076, Taiwan
| | - Jey-Jau Lee
- Synchrotron Radiation Research Center , Hsinchu 30076, Taiwan
| | | | | | | | | | - Yun Chi
- Department of Chemistry, National Tsing Hua University , Hsinchu 30013, Taiwan
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38
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Yang X, Feng Z, Zhao J, Dang JS, Liu B, Zhang K, Zhou G. Pyrimidine-Based Mononuclear and Dinuclear Iridium(III) Complexes for High Performance Organic Light-Emitting Diodes. ACS APPLIED MATERIALS & INTERFACES 2016; 8:33874-33887. [PMID: 27960415 DOI: 10.1021/acsami.6b12446] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Containing two nitrogen atoms, the electron-deficient pyrimidine ring has excellent coordinating capability with transition metal ions. However, compared with the widely used pyridine ring, applications of the pyrimidine ring in phosphorescent Ir(III) complexes are rare. In this research, two highly emissive pyrimidine-based mononuclear Ir(III) complexes and their corresponding dinuclear Ir(III) complexes were prepared with a simple one-pot reaction. The incorporation of the second Ir(III) center can lead to dramatic differences of both photophysical and electrochemical properties between the mono- and dinuclear complexes. Besides, these properties can also be fine-tuned with different substituents. Theoretical calculations have also been performed to understand their photophysical behaviors. The electroluminescent investigations demonstrate that the pyrimidine-based mono- and dinuclear Ir(III) complexes could show impressive device performance. The vacuum-deposited organic light-emitting diode (OLED) based on the mononuclear Ir(III) complex exhibited an external quantum efficiency (EQE) of 16.1% with almost no efficiency roll-off even at 10 000 cd m-2. More encouragingly, the solution-processed OLED based on the dinuclear Ir(III) complex achieved the outstanding EQE, current efficiency (CE), and power efficiency (PE) of 17.9%, 52.5 cd A-1, and 51.2 lm W-1, respectively, representing the highest efficiencies ever achieved by OLEDs based on dinuclear Ir(III) complexes.
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Affiliation(s)
- Xiaolong Yang
- MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Institute of Chemistry for New Energy Materials, Department of Chemistry, School of Science, Xi'an Jiaotong University , Xi'an 710049, People's Republic of China
| | - Zhao Feng
- MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Institute of Chemistry for New Energy Materials, Department of Chemistry, School of Science, Xi'an Jiaotong University , Xi'an 710049, People's Republic of China
| | - Jiang Zhao
- MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Institute of Chemistry for New Energy Materials, Department of Chemistry, School of Science, Xi'an Jiaotong University , Xi'an 710049, People's Republic of China
| | - Jing-Shuang Dang
- MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Institute of Chemistry for New Energy Materials, Department of Chemistry, School of Science, Xi'an Jiaotong University , Xi'an 710049, People's Republic of China
| | - Boao Liu
- MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Institute of Chemistry for New Energy Materials, Department of Chemistry, School of Science, Xi'an Jiaotong University , Xi'an 710049, People's Republic of China
| | - Kaini Zhang
- MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Institute of Chemistry for New Energy Materials, Department of Chemistry, School of Science, Xi'an Jiaotong University , Xi'an 710049, People's Republic of China
| | - Guijiang Zhou
- MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Institute of Chemistry for New Energy Materials, Department of Chemistry, School of Science, Xi'an Jiaotong University , Xi'an 710049, People's Republic of China
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39
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Lu CW, Wang Y, Chi Y. Metal Complexes with Azolate-Functionalized Multidentate Ligands: Tactical Designs and Optoelectronic Applications. Chemistry 2016; 22:17892-17908. [DOI: 10.1002/chem.201601216] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Chin-Wei Lu
- Department of Chemistry and Low Carbon Energy Research Center; National Tsing Hua University; Hsinchu 30013 Taiwan
| | - Yang Wang
- Department of Chemistry and Low Carbon Energy Research Center; National Tsing Hua University; Hsinchu 30013 Taiwan
| | - Yun Chi
- Department of Chemistry and Low Carbon Energy Research Center; National Tsing Hua University; Hsinchu 30013 Taiwan
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40
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Leung MY, Leung SYL, Wu D, Yu T, Yam VWW. Synthesis, Electrochemistry, and Photophysical Studies of Ruthenium(II) Polypyridine Complexes with D-π-A-π-D Type Ligands and Their Application Studies as Organic Memories. Chemistry 2016; 22:14013-14021. [DOI: 10.1002/chem.201602228] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Ming-Yi Leung
- Institute of Molecular Functional Materials (Areas of Excellence Scheme; University Grants Committee (Hong Kong)) and; Department of Chemistry; The University of Hong Kong; Pokfulam Road Hong Kong
| | - Sammual Yu-Lut Leung
- Institute of Molecular Functional Materials (Areas of Excellence Scheme; University Grants Committee (Hong Kong)) and; Department of Chemistry; The University of Hong Kong; Pokfulam Road Hong Kong
| | - Di Wu
- Institute of Molecular Functional Materials (Areas of Excellence Scheme; University Grants Committee (Hong Kong)) and; Department of Chemistry; The University of Hong Kong; Pokfulam Road Hong Kong
| | - Tao Yu
- Institute of Molecular Functional Materials (Areas of Excellence Scheme; University Grants Committee (Hong Kong)) and; Department of Chemistry; The University of Hong Kong; Pokfulam Road Hong Kong
| | - Vivian Wing-Wah Yam
- Institute of Molecular Functional Materials (Areas of Excellence Scheme; University Grants Committee (Hong Kong)) and; Department of Chemistry; The University of Hong Kong; Pokfulam Road Hong Kong
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41
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Huckaba AJ, Nazeeruddin MK. Strategies for Tuning Emission Energy in Phosphorescent Ir(III) Complexes. COMMENT INORG CHEM 2016. [DOI: 10.1080/02603594.2016.1207064] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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42
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Liao JL, Chi Y, Wang JY, Chen ZN, Tsai ZH, Hung WY, Tseng MR, Lee GH. Pt(II) Phosphors Featuring Both Dicarbene and Functional Biazolate Chelates: Synthesis, Luminescent Properties, and Applications in Organic Light-Emitting Diodes. Inorg Chem 2016; 55:6394-404. [DOI: 10.1021/acs.inorgchem.6b00097] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Jia-Ling Liao
- Department
of Chemistry and Low Carbon Energy Research Center, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Yun Chi
- Department
of Chemistry and Low Carbon Energy Research Center, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Jin-Yun Wang
- Fujian Institute of Research on the Structure of Matter, CAS, State Key Laboratory of Structural Chemistry, Fuzhou, 350002, China
| | - Zhong-Ning Chen
- Fujian Institute of Research on the Structure of Matter, CAS, State Key Laboratory of Structural Chemistry, Fuzhou, 350002, China
| | - Zheng-Hua Tsai
- Institute of Optoelectronic Sciences, National Taiwan Ocean University, Keelung 202, Taiwan
| | - Wen-Yi Hung
- Institute of Optoelectronic Sciences, National Taiwan Ocean University, Keelung 202, Taiwan
| | - Meu-Rurng Tseng
- Material and Chemical Research Laboratories, Industrial Technology Research Institute, Hsinchu 31040, Taiwan
| | - Gene-Hsiang Lee
- Instrumentation Center, National Taiwan University, Taipei 10617, Taiwan
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43
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Sun Y, Lemaur V, Beltrán JI, Cornil J, Huang J, Zhu J, Wang Y, Fröhlich R, Wang H, Jiang L, Zou G. Neutral Mononuclear Copper(I) Complexes: Synthesis, Crystal Structures, and Photophysical Properties. Inorg Chem 2016; 55:5845-52. [PMID: 27232266 DOI: 10.1021/acs.inorgchem.6b00101] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Neutral green-emitting four-coordinate Cu(I) complexes with general formula POPCu(NN), where POP = bis[2-(diphenylphosphino)phenyl]ether and NN = substituted 2-pyridine-1,2,4-triazole ligands, were synthesized. The crystal structures of (POPCuMeCN)(+)(PF6)(-) (1), POPCuPhPtp (2a, PhPtp = 2-(5-phenyl-2H-[1,2,4]triazol-3-yl)-pyridine), and POPCu(3,5-2FPhPtp) (2d, 3,5-2FPhPtp = 2-(5-(3,5-difluorophenyl)-2H-1,2,4-triazol-3-yl)pyridine) were determined by single-crystal X-ray diffraction analysis. The electronic and photophysical properties of the complexes were examined by UV-vis, steady-state, and time-resolved spectroscopy. At room temperature, weak emission was observed in solution, while in the solid state, all complexes exhibit intense green emission with quantum yield up to 0.54. The electronic and photophysical properties were further supported by calculation performed at the (time-dependent) density functional theory level. One of the complexes was also tested as dopant in electroluminescent devices.
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Affiliation(s)
- Yinghui Sun
- College of Physics, Optoelectronics and Energy, Institute of Chemical Power Sources, and Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou, 215006, China.,Institute of Functional Nano and Soft Materials, Soochow University , Suzhou, Jiangsu 215123, China
| | - Vincent Lemaur
- Service de Chimie des Matériaux Nouveaux, Université de Mons , Place du Parc 20, 7000 Mons, Belgium
| | - Juan I Beltrán
- Service de Chimie des Matériaux Nouveaux, Université de Mons , Place du Parc 20, 7000 Mons, Belgium
| | - Jérôme Cornil
- Service de Chimie des Matériaux Nouveaux, Université de Mons , Place du Parc 20, 7000 Mons, Belgium
| | - Jianwen Huang
- College of Physics, Optoelectronics and Energy, Institute of Chemical Power Sources, and Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou, 215006, China
| | - Juntong Zhu
- College of Physics, Optoelectronics and Energy, Institute of Chemical Power Sources, and Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou, 215006, China
| | - Yun Wang
- College of Physics, Optoelectronics and Energy, Institute of Chemical Power Sources, and Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou, 215006, China
| | - Roland Fröhlich
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster , Corrensstrasse 40, 48149 Münster, Germany
| | - Haibo Wang
- College of Physics, Optoelectronics and Energy, Institute of Chemical Power Sources, and Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou, 215006, China
| | - Lin Jiang
- Institute of Functional Nano and Soft Materials, Soochow University , Suzhou, Jiangsu 215123, China
| | - Guifu Zou
- College of Physics, Optoelectronics and Energy, Institute of Chemical Power Sources, and Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou, 215006, China
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44
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Liu D, Yao R, Fu M, Li D, Zhang S. Synthesis and electrophosphorescence of novel heteroleptic iridium complexes based on thiazole-containing ligands. RSC Adv 2016. [DOI: 10.1039/c6ra04551k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Novel heteroleptic iridium complexes containing aromatic-ring-fused-thiazole in cyclometalating ligands are developed and exhibit a maximum external quantum efficiency of 22.2% in orange phosphorescent organic light-emitting diodes.
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Affiliation(s)
- Di Liu
- State Key Laboratory of Fine Chemicals
- School of Chemistry
- Dalian University of Technology
- Dalian 116024
- China
| | - Ruijuan Yao
- State Key Laboratory of Fine Chemicals
- School of Chemistry
- Dalian University of Technology
- Dalian 116024
- China
| | - Min Fu
- State Key Laboratory of Fine Chemicals
- School of Chemistry
- Dalian University of Technology
- Dalian 116024
- China
| | - Deli Li
- State Key Laboratory of Fine Chemicals
- School of Chemistry
- Dalian University of Technology
- Dalian 116024
- China
| | - Shufen Zhang
- State Key Laboratory of Fine Chemicals
- School of Chemistry
- Dalian University of Technology
- Dalian 116024
- China
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45
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Cabrera AR, Gonzalez IA, Cortés-Arriagada D, Natali M, Berke H, Daniliuc CG, Camarada MB, Toro-Labbé A, Rojas RS, Salas CO. Synthesis of new phosphorescent imidoyl-indazol and phosphine mixed ligand Cu(i) complexes – structural characterization and photophysical properties. RSC Adv 2016. [DOI: 10.1039/c5ra20450j] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
New Cu(i) complexes were prepared, [Cu(N,N)2]+ (1) and [Cu(N,N)(P,P)]+ (2–4), and characterized by spectroscopic methods and DFT calculations. It highlights the influence of the different ligands on the photophysical properties of the complexes.
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Affiliation(s)
- Alan R. Cabrera
- Nucleus Millennium Chemical Processes and Catalysis
- Faculty of Chemistry
- Pontificia Universidad Católica de Chile
- Santiago-22
- Chile
| | - Ivan A. Gonzalez
- Nucleus Millennium Chemical Processes and Catalysis
- Faculty of Chemistry
- Pontificia Universidad Católica de Chile
- Santiago-22
- Chile
| | - Diego Cortés-Arriagada
- Nucleus Millennium Chemical Processes and Catalysis
- Faculty of Chemistry
- Pontificia Universidad Católica de Chile
- Santiago-22
- Chile
| | - Mirco Natali
- Department of Chemical and Pharmaceutical Sciences and Centro Interuniversitario per la Conversione Chimica dell'Energia Solare (sez. di Ferrara)
- University of Ferrara
- 44121 Ferrara
- Italy
| | - Heinz Berke
- Chemisches Institut
- Universität Zürich
- CH-8057 Zürich
- Switzerland
| | | | - María B. Camarada
- Universidad Bernardo O Higgins
- Departamento de Ciencias Químicas y Biológicas
- Laboratorio de Bionanotecnología
- Santiago
- Chile
| | - Alejandro Toro-Labbé
- Nucleus Millennium Chemical Processes and Catalysis
- Faculty of Chemistry
- Pontificia Universidad Católica de Chile
- Santiago-22
- Chile
| | - Rene S. Rojas
- Nucleus Millennium Chemical Processes and Catalysis
- Faculty of Chemistry
- Pontificia Universidad Católica de Chile
- Santiago-22
- Chile
| | - Cristian O. Salas
- Nucleus Millennium Chemical Processes and Catalysis
- Faculty of Chemistry
- Pontificia Universidad Católica de Chile
- Santiago-22
- Chile
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46
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Liao JL, Chi Y, Sie ZT, Ku CH, Chang CH, Fox MA, Low PJ, Tseng MR, Lee GH. Ir(III)-Based Phosphors with Bipyrazolate Ancillaries; Rational Design, Photophysics, and Applications in Organic Light-Emitting Diodes. Inorg Chem 2015; 54:10811-21. [DOI: 10.1021/acs.inorgchem.5b01835] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jia-Ling Liao
- Department
of Chemistry and Low Carbon Energy Research Center, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Yun Chi
- Department
of Chemistry and Low Carbon Energy Research Center, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Zong-Ting Sie
- Department of Photonics Engineering, Yuan Ze University, Chungli 32003, Taiwan
| | - Chia-Hao Ku
- Department of Photonics Engineering, Yuan Ze University, Chungli 32003, Taiwan
| | - Chih-Hao Chang
- Department of Photonics Engineering, Yuan Ze University, Chungli 32003, Taiwan
| | - Mark A. Fox
- Department of Chemistry, Durham University, South Road, Durham DH1
3LE, U.K
| | - Paul J. Low
- School of Chemistry and
Biochemistry, University of Western Australia, 35 Stirling Highway, Crawley 6009, Western Australia, Australia
| | - Meu-Rurng Tseng
- Material
and Chemical Research Laboratories, Industrial Technology Research Institute, Hsinchu 31040, Taiwan
| | - Gene-Hsiang Lee
- Instrumentation
Center, National Taiwan University, Taipei 10617, Taiwan
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47
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Yang X, Zhou G, Wong WY. Functionalization of phosphorescent emitters and their host materials by main-group elements for phosphorescent organic light-emitting devices. Chem Soc Rev 2015; 44:8484-575. [PMID: 26245654 DOI: 10.1039/c5cs00424a] [Citation(s) in RCA: 393] [Impact Index Per Article: 43.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Phosphorescent organic light-emitting devices (OLEDs) have attracted increased attention from both academic and industrial communities due to their potential practical application in high-resolution full-color displays and energy-saving solid-state lightings. The performance of phosphorescent OLEDs is mainly limited by the phosphorescent transition metal complexes (such as iridium(III), platinum(II), gold(III), ruthenium(II), copper(I) and osmium(II) complexes, etc.) which can play a crucial role in furnishing efficient energy transfer, balanced charge injection/transporting character and high quantum efficiency in the devices. It has been shown that functionalized main-group element (such as boron, silicon, nitrogen, phosphorus, oxygen, sulfur and fluorine, etc.) moieties can be incorporated into phosphorescent emitters and their host materials to tune their triplet energies, frontier molecular orbital energies, charge injection/transporting behavior, photophysical properties and thermal stability and hence bring about highly efficient phosphorescent OLEDs. So, in this review, the recent advances in the phosphorescent emitters and their host materials functionalized with various main-group moieties will be introduced from the point of view of their structure-property relationship. The main emphasis lies on the important role played by the main-group element groups in addressing the key issues of both phosphorescent emitters and their host materials to fulfill high-performance phosphorescent OLEDs.
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Affiliation(s)
- Xiaolong Yang
- MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, State Key Laboratory for Mechanical Behavior of Materials, Department of Chemistry, Faculty of Science, Xi'an Jiaotong University, Xi'an 710049, P. R. China.
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Wu Z, Mu J, Wang Q, Chen X, Jensen L, Yi C, Li MJ. Hydroxyl and amino functionalized cyclometalated Ir(III) complexes: Synthesis, characterization and cytotoxicity studies. J Organomet Chem 2015. [DOI: 10.1016/j.jorganchem.2015.05.035] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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