1
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Kubota K, Endo T, Ito H. Solid-state mechanochemistry for the rapid and efficient synthesis of tris-cyclometalated iridium(iii) complexes. Chem Sci 2024; 15:3365-3371. [PMID: 38425515 PMCID: PMC10901499 DOI: 10.1039/d3sc05796h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 01/18/2024] [Indexed: 03/02/2024] Open
Abstract
Tris-cyclometalated iridium(iii) complexes have received widespread attention as attractive prospective materials for e.g., organic light-emitting diodes (OLEDs), photoredox catalysts, and bioimaging probes. However, their preparation usually requires prolonged reaction times, significant amounts of high-boiling solvents, multistep synthesis, and inert-gas-line techniques. Unfortunately, these requirements represent major drawbacks from both a production-cost and an environmental perspective. Herein, we show that a two-step mechanochemical protocol using ball milling enables the rapid and efficient synthesis of various tris-cyclometalated iridium(iii) complexes from relatively cheap iridium(iii) chloride hydrate without the use of significant amounts of organic solvent in air. Notably, a direct one-pot procedure is also demonstrated. The present solid-state approach can be expected to inspire the development of cost-effective and timely production methods for these valuable iridium-based complexes, as well as the discovery of new phosphorescent materials, sensors, and catalysts.
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Affiliation(s)
- Koji Kubota
- Division of Applied Chemistry and Frontier Chemistry Center, Faculty of Engineering, Hokkaido University Sapporo Hokkaido Japan
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University Sapporo Hokkaido Japan
| | - Tsubura Endo
- Division of Applied Chemistry and Frontier Chemistry Center, Faculty of Engineering, Hokkaido University Sapporo Hokkaido Japan
| | - Hajime Ito
- Division of Applied Chemistry and Frontier Chemistry Center, Faculty of Engineering, Hokkaido University Sapporo Hokkaido Japan
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University Sapporo Hokkaido Japan
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2
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Liashuk OS, Andriashvili VA, Tolmachev AO, Grygorenko OO. Chemoselective Reactions of Functionalized Sulfonyl Halides. CHEM REC 2024; 24:e202300256. [PMID: 37823680 DOI: 10.1002/tcr.202300256] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 09/13/2023] [Indexed: 10/13/2023]
Abstract
Chemoselective transformations of functionalized sulfonyl fluorides and chlorides are surveyed comprehensively. It is shown that sulfonyl fluorides provide an excellent selectivity control in their reactions. Thus, numerous conditions are tolerated by the SO2 F group - from amide and ester formation to directed ortho-lithiation and transition-metal-catalyzed cross-couplings. Meanwhile, sulfur (VI) fluoride exchange (SuFEx) is also compatible with numerous functional groups, thus confirming its title of "another click reaction". On the contrary, with a few exceptions, most transformations of functionalized sulfonyl chlorides typically occur at the SO2 Cl moiety.
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Affiliation(s)
- Oleksandr S Liashuk
- Enamine Ltd. (www.enamine.net), Winston Churchill Street 78, Kyїv, 02094, Ukraine
- Taras Shevchenko National University of Kyiv, Volodymyrska Street 60, Kyїv, 01601, Ukraine
| | - Vladyslav A Andriashvili
- Enamine Ltd. (www.enamine.net), Winston Churchill Street 78, Kyїv, 02094, Ukraine
- Taras Shevchenko National University of Kyiv, Volodymyrska Street 60, Kyїv, 01601, Ukraine
| | - Andriy O Tolmachev
- Enamine Ltd. (www.enamine.net), Winston Churchill Street 78, Kyїv, 02094, Ukraine
- Taras Shevchenko National University of Kyiv, Volodymyrska Street 60, Kyїv, 01601, Ukraine
| | - Oleksandr O Grygorenko
- Enamine Ltd. (www.enamine.net), Winston Churchill Street 78, Kyїv, 02094, Ukraine
- Taras Shevchenko National University of Kyiv, Volodymyrska Street 60, Kyїv, 01601, Ukraine
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3
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Babón JC, Boudreault PLT, Esteruelas MA, Gaona MA, Izquierdo S, Oliván M, Oñate E, Tsai JY, Vélez A. Two Synthetic Tools to Deepen the Understanding of the Influence of Stereochemistry on the Properties of Iridium(III) Heteroleptic Emitters. Inorg Chem 2023; 62:19821-19837. [PMID: 37988596 PMCID: PMC10880056 DOI: 10.1021/acs.inorgchem.3c03133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 10/24/2023] [Accepted: 11/02/2023] [Indexed: 11/23/2023]
Abstract
Two complementary procedures are presented to prepare cis-pyridyl-iridium(III) emitters of the class [3b+3b+3b'] with two orthometalated ligands of the 2-phenylpyridine type (3b) and a third ligand (3b'). They allowed to obtain four emitters of this class and to compare their properties with those of the trans-pyridyl isomers. The finding starts from IrH5(PiPr3)2, which reacts with 2-(p-tolyl)pyridine to give fac-[Ir{κ2-C,N-[C6MeH3-py]}3] with an almost quantitative yield. Stirring the latter in the appropriate amount of a saturated solution of HCl in toluene results in the cis-pyridyl adduct IrCl{κ2-C,N-[C6MeH3-py]}2{κ1-Cl-[Cl-H-py-C6MeH4]} stabilized with p-tolylpyridinium chloride, which can also be transformed into dimer cis-[Ir(μ-OH){κ2-C,N-[C6MeH3-py]}2]2. Adduct IrCl{κ2-C,N-[C6MeH3-py]}2{κ1-Cl-[Cl-H-py-C6MeH4]} directly generates cis-[Ir{κ2-C,N-[C6MeH3-py]}2{κ2-C,N-[C6H4-Isoqui]}] and cis-[Ir{κ2-C,N-[C6MeH3-py]}2{κ2-C,N-[C6H4-py]}] by transmetalation from Li[2-(isoquinolin-1-yl)-C6H4] and Li[py-2-C6H4]. Dimer cis-[Ir(μ-OH){κ2-C,N-[C6MeH3-py]}2]2 is also a useful starting complex when the precursor molecule of 3b' has a fairly acidic hydrogen atom, suitable for removal by hydroxide groups. Thus, its reactions with 2-picolinic acid and acetylacetone (Hacac) lead to cis-Ir{κ2-C,N-[C6MeH3-py]}2{κ2-O,N-[OC(O)-py]} and cis-Ir{κ2-C,N-[C6MeH3-py]}2{κ2-O,O-[acac]}. The stereochemistry of the emitter does not significantly influence the emission wavelengths. On the contrary, its efficiency is highly dependent on and associated with the stability of the isomer. The more stable isomer shows a higher quantum yield and color purity.
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Affiliation(s)
- Juan C. Babón
- 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
| | - Miguel A. Gaona
- 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
| | - Susana Izquierdo
- 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
| | - Jui-Yi Tsai
- Universal
Display Corporation, Ewing, New Jersey 08618, United States
| | - 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
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4
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Esteruelas MA, Leon F, Moreno-Blázquez S, Oliván M, Oñate E. Preparation, Aromaticity, and Bromination of Spiro Iridafurans. Inorg Chem 2023; 62:16810-16824. [PMID: 37782299 DOI: 10.1021/acs.inorgchem.3c02228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/03/2023]
Abstract
Iridium centers of [Ir(μ-Cl)(C8H14)2]2 (1) activate the Cβ(sp2)-H bond of benzylideneacetone to give [Ir(μ-Cl){κ2-C,O-[C(Ph)CHC(Me)O]}2]2 (2), which is the starting point for the preparation of the spiro iridafurans IrCl{κ2-C,O-[C(Ph)CHC(Me)O]}2(PiPr3) (3), [Ir{κ2-C,O-[C(Ph)CHC(Me)O]}2(MeCN)2]BF4 (4), [Ir(μ-OH){κ2-C,O-[C(Ph)CHC(Me)O]}2]2 (5), Ir{κ2-C,O-[C(Ph)CHC(Me)O]}2{κ2-C,N-[C6MeH3-py]} (6), and Ir{κ2-C,O-[C(Ph)CHC(Me)O]}2{κ2-O,O-[acac]} (7). The five-membered rings are orthogonally arranged with the oxygen atoms in trans in an octahedral environment of the iridium atom. Spiro iridafurans are aromatic. The degree of aromaticity and the negative charge of the CH-carbon of the rings depend on ligand trans to the carbon directly attached to the metal. Aromaticity has been experimentally confirmed by bromination of iridafurans with N-bromosuccinimide (NBS). Reactions are sensitive to the degree of aromaticity of the ring and the negative charge of the attacked CH-carbon. Iridafurans can be selectively brominated, when different ligands lie trans to metalated carbons. Bromination of 3 occurs in the ring with the metalated carbon trans to chloride, whereas the bromination of 6 takes place in the ring with the metalated carbon trans to pyridyl. The first gives IrCl{κ2-C,O-[C(Ph)CBrC(Me)O]}{κ2-C,O-[C(Ph)CHC(Me)O]}(PiPr3) (8), which reacts with more NBS to form IrCl{κ2-C,O-[C(Ph)CBrC(Me)O]}2(PiPr3) (9). The second yields Ir{κ2-C,O-[C(Ph)CBrC(Me)O]}{κ2-C,O-[C(Ph)CHC(Me)O]}{κ2-C,N-[C6MeH3-py]} (10). The origin of the selectivity is kinetic, with the rate-determining step of the reaction being the NBS attack. The activation energy depends on the negative charge of the attacked atom; a higher negative charge allows for a lower activation energy. Accordingly, complex 7 undergoes bromination in the acetylacetonate ligand, giving Ir{κ2-C,O-[C(Ph)CHC(Me)O]}2{κ2-O,O-[acacBr]} (11).
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Affiliation(s)
- 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
| | - Félix Leon
- 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
| | - Sonia Moreno-Blázquez
- 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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5
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Beresneviciute R, Gautam P, Nagar MR, Krucaite G, Tavgeniene D, Jou JH, Grigalevicius S. Naphtalimide-Based Bipolar Derivatives Enabling High-Efficiency OLEDs. Molecules 2023; 28:6027. [PMID: 37630279 PMCID: PMC10458866 DOI: 10.3390/molecules28166027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 08/03/2023] [Accepted: 08/10/2023] [Indexed: 08/27/2023] Open
Abstract
Organic light-emitting diodes (OLEDs) have revolutionized the world of technology, making significant contributions to enhancing our everyday lives. With their exceptional display and lighting capabilities, OLEDs have become indispensable in various industries such as smartphones, tablets, televisions, and automotives. They have emerged as a dominant technology, inspiring continuous advancements, and improvements. Taking inspiration from the remarkable advancements in OLED advancements, we have successfully developed naphtalimide-based compounds, namely RB-08, RB-09, RB-10, and RB-11. These compounds exhibit desirable characteristics such as a wide bandgap, high decomposition temperatures (306-366 °C), and very high glass transition temperatures (133-179 °C). Leveraging these exceptional properties, we have harnessed these compounds as green emitters in the aforementioned devices. Among the various fabricated OLEDs, the one incorporating the RB-11 emitter has exhibited superior performance. This specific configuration achieved maximum power efficacy of 7.7 lm/W, current efficacy of 7.9 cd/A, and external quantum efficiency of 3.3%. These results highlight the outstanding capabilities of our synthesized emitter and its potential for further advancements in the field.
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Affiliation(s)
- Raminta Beresneviciute
- Department of Polymer Chemistry and Technology, Kaunas University of Technology, Radvilenu Plentas 19, LT50254 Kaunas, Lithuania
| | - Prakalp Gautam
- Department of Materials Science and Engineering, National Tsing Hua University, No. 101, Section 2, Guangfu Rd., East District, Hsinchu 30013, Taiwan
| | - Mangey Ram Nagar
- Department of Materials Science and Engineering, National Tsing Hua University, No. 101, Section 2, Guangfu Rd., East District, Hsinchu 30013, Taiwan
| | - Gintare Krucaite
- Department of Polymer Chemistry and Technology, Kaunas University of Technology, Radvilenu Plentas 19, LT50254 Kaunas, Lithuania
| | - Daiva Tavgeniene
- Department of Polymer Chemistry and Technology, Kaunas University of Technology, Radvilenu Plentas 19, LT50254 Kaunas, Lithuania
| | - Jwo-Huei Jou
- Department of Materials Science and Engineering, National Tsing Hua University, No. 101, Section 2, Guangfu Rd., East District, Hsinchu 30013, Taiwan
| | - Saulius Grigalevicius
- Department of Polymer Chemistry and Technology, Kaunas University of Technology, Radvilenu Plentas 19, LT50254 Kaunas, Lithuania
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6
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Terrones GG, Duan C, Nandy A, Kulik HJ. Low-cost machine learning prediction of excited state properties of iridium-centered phosphors. Chem Sci 2023; 14:1419-1433. [PMID: 36794185 PMCID: PMC9906783 DOI: 10.1039/d2sc06150c] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 01/05/2023] [Indexed: 01/07/2023] Open
Abstract
Prediction of the excited state properties of photoactive iridium complexes challenges ab initio methods such as time-dependent density functional theory (TDDFT) both from the perspective of accuracy and of computational cost, complicating high-throughput virtual screening (HTVS). We instead leverage low-cost machine learning (ML) models and experimental data for 1380 iridium complexes to perform these prediction tasks. We find the best-performing and most transferable models to be those trained on electronic structure features from low-cost density functional tight binding calculations. Using artificial neural network (ANN) models, we predict the mean emission energy of phosphorescence, the excited state lifetime, and the emission spectral integral for iridium complexes with accuracy competitive with or superseding that of TDDFT. We conduct feature importance analysis to determine that high cyclometalating ligand ionization potential correlates to high mean emission energy, while high ancillary ligand ionization potential correlates to low lifetime and low spectral integral. As a demonstration of how our ML models can be used for HTVS and the acceleration of chemical discovery, we curate a set of novel hypothetical iridium complexes and use uncertainty-controlled predictions to identify promising ligands for the design of new phosphors while retaining confidence in the quality of the ANN predictions.
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Affiliation(s)
- Gianmarco G. Terrones
- Department of Chemical Engineering, Massachusetts Institute of TechnologyCambridgeMA 02139USA
| | - Chenru Duan
- Department of Chemical Engineering, Massachusetts Institute of TechnologyCambridgeMA 02139USA,Department of Chemistry, Massachusetts Institute of TechnologyCambridgeMA 02139USA
| | - Aditya Nandy
- Department of Chemical Engineering, Massachusetts Institute of TechnologyCambridgeMA 02139USA,Department of Chemistry, Massachusetts Institute of TechnologyCambridgeMA 02139USA
| | - Heather J. Kulik
- Department of Chemical Engineering, Massachusetts Institute of TechnologyCambridgeMA 02139USA,Department of Chemistry, Massachusetts Institute of TechnologyCambridgeMA 02139USA
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7
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Ir(III)-Naphthoquinone complex as a platform for photocatalytic activity. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY 2022. [DOI: 10.1016/j.jpap.2021.100098] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
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8
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DiLuzio S, Mdluli V, Connell TU, Lewis J, VanBenschoten V, Bernhard S. High-Throughput Screening and Automated Data-Driven Analysis of the Triplet Photophysical Properties of Structurally Diverse, Heteroleptic Iridium(III) Complexes. J Am Chem Soc 2021; 143:1179-1194. [DOI: 10.1021/jacs.0c12290] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Stephen DiLuzio
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Velabo Mdluli
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Timothy U. Connell
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Jacqueline Lewis
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Victoria VanBenschoten
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Stefan Bernhard
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
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Boudreault PLT, Esteruelas MA, López AM, Oñate E, Raga E, Tsai JY. Insertion of Unsaturated C-C Bonds into the O-H Bond of an Iridium(III)-Hydroxo Complex: Formation of Phosphorescent Emitters with an Asymmetrical β-Diketonate Ligand. Inorg Chem 2020; 59:15877-15887. [PMID: 33059453 DOI: 10.1021/acs.inorgchem.0c02395] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A synthetic methodology to prepare iridium(III) emitters of the class [3b+3b+3b'] with two ortho-metalated 1-phenylisoquinolines and an asymmetrical β-diketonate has been discovered. The abstraction of the chloride ligands of the dimer [Ir(μ-Cl){κ2-C,N-(C6H4-isoqui)}2]2 (1, C6H5-isoqui = 1-phenylisoquinoline) with AgBF4 in acetone and the subsequent addition of water to the resulting solution affords the water solvate mononuclear complex [Ir{κ2-C,N-(C6H4-isoqui)}2(H2O)2]BF4 (2), which reacts with KOH to give the dihydroxo-bridged dimer [Ir(μ-OH){κ2-C,N-(C6H4-isoqui)}2]2 (3). Treatment of the latter with dimethyl acetylenedicarboxylate leads to Ir{κ2-C,N-(C6H4-isoqui)}2{κ2-O,O-[OC(CO2CH3)CHC(OCH3)O]} (4), as a result of the anti-addition of the O-H bond of a mononuclear [Ir(OH){κ2-C,N-(C6H4-isoqui)}2] fragment to the C-C triple bond of the alkyne and the coordination of one of the carboxylate substituents to the metal center. Complex 3 also reacts with α,β-unsaturated ketones. The reaction with 3-(4-methylphenyl)-1-phenylprop-2-en-1-one affords Ir{κ2-C,N-(C6H4-isoqui)}2{κ2-O,O-[OC(C6H5)CHC(p-C6H4Me)O]} (5), whereas methyl vinyl ketone gives a mixture of Ir{κ2-C,N-(C6H4-isoqui)}2{κ2-O,O-[OC(CH3)CHCHO]} (6) and Ir{κ2-C,N-(C6H4-isoqui)}2{κ2-O,O-[OC(CH3)CHC(CH═CH2)O]} (7). Complexes 5 and 6 are the result of the addition of the O-H bond of the mononuclear [Ir(OH){κ2-C,N-(C6H4-isoqui)}2] fragment to the C-C double bond of the α,β-unsaturated ketones and the coordination of the carbonyl group to the iridium center, to generate O,O-chelates which lose molecular hydrogen to aromatize into the asymmetrical β-diketonate ligands. Complexes 4-7 are phosphorescent emitters in the red spectral region (599-672 nm) in doped poly(methyl methacrylate) (PMMA) film at 5 wt % at room temperature and 2-methyltetrahydrofuran at room temperature and 77 K. They display short lifetimes (0.8-2.5 μs) and quantum yields in both doped PMMA films and in 2-methyltetrahydrofuran at room temperature depending on the substituents of the β-diketonate: about 0.6-0.5 for 4 and 6 and ca. 0.35 for 5 and 7.
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Affiliation(s)
| | - Miguel A Esteruelas
- Departamento de Quı́mica Inorgánica, Instituto de Sı́ntesis Quı́mica y Catálisis Homogénea (ISQCH), Centro de Innovación en Quı́mica Avanzada (ORFEO-CINQA), Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Ana M López
- Departamento de Quı́mica Inorgánica, Instituto de Sı́ntesis Quı́mica y Catálisis Homogénea (ISQCH), Centro de Innovación en Quı́mica Avanzada (ORFEO-CINQA), Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Enrique Oñate
- Departamento de Quı́mica Inorgánica, Instituto de Sı́ntesis Quı́mica y Catálisis Homogénea (ISQCH), Centro de Innovación en Quı́mica Avanzada (ORFEO-CINQA), Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Esther Raga
- Departamento de Quı́mica Inorgánica, Instituto de Sı́ntesis Quı́mica y Catálisis Homogénea (ISQCH), Centro de Innovación en Quı́mica Avanzada (ORFEO-CINQA), Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Jui-Yi Tsai
- Universal Display Corporation, Ewing, New Jersey 08618, United States
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10
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Lee S, Han WS. Cyclometalated Ir(iii) complexes towards blue-emissive dopant for organic light-emitting diodes: fundamentals of photophysics and designing strategies. Inorg Chem Front 2020. [DOI: 10.1039/d0qi00001a] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The fundamental photophysics of cyclometalated Ir(iii) complexes and surveys design strategies for efficient blue phosphorescent Ir(iii) complexes are summarised.
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Affiliation(s)
- Sunhee Lee
- Department of Chemistry
- Seoul Women's University
- Seoul 01797
- Republic of Korea
| | - Won-Sik Han
- Department of Chemistry
- Seoul Women's University
- Seoul 01797
- Republic of Korea
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