1
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Benítez M, Buil ML, Esteruelas MA, López AM, Martín-Escura C, Oñate E. C-H, N-H, and O-H Bond Activations to Prepare Phosphorescent Hydride-Iridium(III)-Phosphine Emitters with Photocatalytic Achievement in C-C Coupling Reactions. Inorg Chem 2024; 63:6346-6361. [PMID: 38546839 DOI: 10.1021/acs.inorgchem.4c00115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
Complex IrH5(PiPr3)2 (1) activates two different σ-bonds of 3-phenoxy-1-phenylisoquinoline, 2-(1H-benzimidazol-2-yl)-6-phenylpyridine, 2-(1H-indol-2-yl)-6-phenylpyridine, 2-(2-hydroxyphenyl)-6-phenylpyridine, N-(2-hydroxyphenyl)-N'-phenylimidazolylidene, and 1,3-di(2-pyridyl)-4,6-dimethylbenzene to give IrH{κ3-C,N,C-[C6H4-isoqui-O-C6H4]}(PiPr3)2 (2), IrH{κ3-N,N,C-[NBzim-py-C6H4]}(PiPr3)2 (3), IrH{κ3-N,N,C-[Ind-py-C6H4]}(PiPr3)2 (4), IrH{κ3-C,N,O-[C6H4-py-C6H4O]}(PiPr3)2 (5), IrH{κ3-C,C,O-[C6H4-Im-C6H4O]}(PiPr3)2 (6), and IrH{κ3-N,C,C-[py-C6HMe2-C5H3N]}(PiPr3)2 (7), respectively. The activations are sequential, with the second generally being the slowest. Accordingly, dihydride intermediates IrH2{κ2-C,N-[C6H4-isoqui-O-C6H5]}(PiPr3)2 (2d), IrH2{κ2-N,N-[NBzim-py-C6H5]}(PiPr3)2 (3d), IrH2{κ2-N,N-[Ind-py-C6H5]}(PiPr3)2 (4d), and IrH2{κ2-N,C-[py-C6HMe2-py]}(PiPr3)2 (7d) were characterized spectroscopically. Complexes 3 and 5 are green phosphorescent emitters upon photoexcitation, exhibiting good absorption over a wide range of wavelengths, emission quantum yields about 0.70 in solution, long enough lifetimes (10-17 μs), and reversible electrochemical behavior. In agreement with these features, complex 3 promotes the photocatalytic α-amino C(sp3)-H arylation of N,N-dimethylaniline and N-phenylpiperidine with 1,4-dicyanobenzene and 4-cyanopyridine under blue LED light irradiation. The C-C coupling products are isolated in high yields with only 2 mol % of photocatalyst after 24 h.
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Affiliation(s)
- María Benítez
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza-CSIC, Zaragoza 50009, Spain
| | - 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, Zaragoza 50009, 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, Zaragoza 50009, 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, Zaragoza 50009, Spain
| | - Cristina Martín-Escura
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza-CSIC, Zaragoza 50009, 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, Zaragoza 50009, Spain
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2
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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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3
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Adamovich V, Benavent L, Boudreault PLT, Esteruelas MA, López AM, Oñate E, Tsai JY. Ligand Design and Preparation, Photophysical Properties, and Device Performance of an Encapsulated-Type Pseudo-Tris(heteroleptic) Iridium(III) Emitter. Inorg Chem 2023; 62:3847-3859. [PMID: 36802562 PMCID: PMC10880055 DOI: 10.1021/acs.inorgchem.2c04106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Indexed: 02/23/2023]
Abstract
The organic molecule 2-(1-phenyl-1-(pyridin-2-yl)ethyl)-6-(3-(1-phenyl-1-(pyridin-2-yl)ethyl)phenyl)pyridine (H3L) has been designed, prepared, and employed to synthesize the encapsulated-type pseudo-tris(heteroleptic) iridium(III) derivative Ir(κ6-fac-C,C',C″-fac-N,N',N″-L). Its formation takes place as a result of the coordination of the heterocycles to the iridium center and the ortho-CH bond activation of the phenyl groups. Dimer [Ir(μ-Cl)(η4-COD)]2 is suitable for the preparation of this compound of class [Ir(9h)] (9h = 9-electron donor hexadentate ligand), but Ir(acac)3 is a more appropriate starting material. Reactions were carried out in 1-phenylethanol. In contrast to the latter, 2-ethoxyethanol promotes the metal carbonylation, inhibiting the full coordination of H3L. Complex Ir(κ6-fac-C,C',C″-fac-N,N',N″-L) is a phosphorescent emitter upon photoexcitation, which has been employed to fabricate four yellow emitting devices with 1931 CIE (x:y) ∼ (0.52:0.48) and a maximum wavelength at 576 nm. These devices display luminous efficacies, external quantum efficiencies, and power efficacies at 600 cd m-2, which lie in the ranges 21.4-31.3 cd A-1, 7.8-11.3%, and 10.2-14.1 lm W1-, respectively, depending on the device configuration.
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Affiliation(s)
- Vadim Adamovich
- Universal
Display Corporation, Ewing, New Jersey 08618, United States
| | - Llorenç Benavent
- 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
| | - 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
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Benítez M, Buil ML, Esteruelas MA, Izquierdo S, Oñate E, Tsai JY. Acetylides for the Preparation of Phosphorescent Iridium(III) Complexes: Iridaoxazoles and Their Transformation into Hydroxycarbenes and N,C(sp3),C(sp2),O-Tetradentate Ligands. Inorg Chem 2022; 61:19597-19611. [PMID: 36416194 PMCID: PMC9949702 DOI: 10.1021/acs.inorgchem.2c03522] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The preparation of three families of phosphorescent iridium(III) emitters, including iridaoxazole derivatives, hydroxycarbene compounds, and N,C(sp3),C(sp2),O-tetradentate containing complexes, has been performed starting from dimers cis-[Ir(μ2-η2-C≡CR){κ2-C,N-(MeC6H3-py)}2]2 (R = tBu (1a), Ph (1b)). Reactions of 1a with benzamide, acetamide, phenylacetamide, and trifluoroacetamide lead to the iridaoxazole derivatives Ir{κ2-C,O-[C(CH2tBu)NC(R)O]}{κ2-C,N-(MeC6H3-py)}2 (R = Ph (2), Me (3), CH2Ph (4), CF3 (5)) with a fac disposition of carbons and heteroatoms around the metal center. In 2-methyltetrahydrofuran and dichloromethane, water promotes the C-N rupture of the IrC-N bond of the iridaoxazole ring of 3-5 to form amidate-iridium(III)-hydroxycarbene derivatives Ir{κ1-N-[NHC(R)O]}{κ2-C,N-(MeC6H3-py)}2{═C(CH2tBu)OH} (R = Me (6), CH2Ph (7), CF3 (8)). In contrast to 1a, dimer 1b reacts with benzamide and acetamide to give Ir{κ4-N,C,C',O-[py-MeC6H3-C(CH2-C6H4)NHC(R)O]}{κ2-C,N-(MeC6H3-py)}(R = Ph (9), Me (10)), which bear a N,C(sp3),C(sp2),O-tetradentate ligand resulting from a triple coupling (an alkynyl ligand, an amide, and a coordinated aryl group) and a C-H bond activation at the metal coordination sphere. Complexes 2-4 and 6-10 are emissive upon photoexcitation, in orange (2-4), green (6-8), and yellow (9 and 10) regions, with quantum yields between low and moderate (0.01-0.50) and short lifetimes (0.2-9.0 μs).
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Affiliation(s)
- María Benítez
- 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
| | - 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,
| | - 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
| | - 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
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Aoki S, Yokoi K, Hisamatsu Y, Balachandran C, Tamura Y, Tanaka T. Post-complexation Functionalization of Cyclometalated Iridium(III) Complexes and Applications to Biomedical and Material Sciences. Top Curr Chem (Cham) 2022; 380:36. [PMID: 35948812 DOI: 10.1007/s41061-022-00401-w] [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: 03/23/2022] [Accepted: 06/20/2022] [Indexed: 11/24/2022]
Abstract
Cyclometalated iridium(III) (Ir(III)) complexes exhibit excellent photophysical properties that include large Stokes shift, high emission quantum yields, and microsecond-order emission lifetimes, due to low-lying metal-to-ligand charge transfer (spin-forbidden singlet-triplet (3MLCT) transition). As a result, analogs have been applied for research not only in the material sciences, such as the development of organic light-emitting diodes (OLEDs), but also for photocatalysts, bioimaging probes, and anticancer reagents. Although a variety of methods for the synthesis and the applications of functionalized cyclometalated iridium complexes have been reported, functional groups are generally introduced to the ligands prior to the complexation with Ir salts. Therefore, it is difficult to introduce thermally unstable functional groups such as peptides and sugars due to the harsh reaction conditions such as the high temperatures used in the complexation with Ir salts. In this review, the functionalization of Ir complexes after the formation of cyclometalated Ir complexes and their biological and material applications are described. These methods are referred to as "post-complexation functionalization (PCF)." In this review, applications of PCF to the design and synthesis of Ir(III) complexes that exhibit blue -red and white color emissions, luminescence pH probes, luminescent probes of cancer cells, compounds that induce cell death in cancer cells, and luminescent complexes that have long emission lifetimes are summarized.
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Affiliation(s)
- Shin Aoki
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, Tokyo, Japan. .,Research Institute for Science and Technology, Tokyo University of Science, Tokyo, Japan. .,Research Institute for Biomedical Sciences, Tokyo University of Science, Tokyo, Japan.
| | - Kenta Yokoi
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, Tokyo, Japan
| | - Yosuke Hisamatsu
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, Tokyo, Japan
| | - Chandrasekar Balachandran
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, Tokyo, Japan.,Research Institute for Biomedical Sciences, Tokyo University of Science, Tokyo, Japan
| | - Yuichi Tamura
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, Tokyo, Japan
| | - Tomohiro Tanaka
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, Tokyo, Japan
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Adamovich V, Benavent L, Boudreault PLT, Esteruelas MA, López AM, Oñate E, Tsai JY. Pseudo-Tris(heteroleptic) Red Phosphorescent Iridium(III) Complexes Bearing a Dianionic C, N, C', N'-Tetradentate Ligand. Inorg Chem 2021; 60:11347-11363. [PMID: 34291933 PMCID: PMC9179949 DOI: 10.1021/acs.inorgchem.1c01303] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
![]()
1-Phenyl-3-(1-phenyl-1-(pyridin-2-yl)ethyl)isoquinoline
(H2MeL) has been prepared by Pd(N-XantPhos)-catalyzed
“deprotonative cross-coupling processes”
to synthesize new phosphorescent red iridium(III) emitters (601–732
nm), including the carbonyl derivative Ir(κ4-cis-C,C′-cis-N,N′-MeL)Cl(CO)
and the acetylacetonate compound Ir(κ4-cis-C,C′-cis-N,N′-MeL)(acac). The tetradentate
6e-donor ligand (6tt′) of these complexes is formed by two
different bidentate units, namely, an orthometalated 2-phenylisoquinoline
and an orthometalated 2-benzylpyridine. The link between the bidentate
units reduces the number of possible stereoisomers of the structures
[6tt′ + 3b] (3b = bidentate 3e-donor ligand), with respect
to a [3b + 3b′ + 3b″] emitter containing three free
bidentate units, and it permits a noticeable stereocontrol. Thus,
the isomers fac-Ir(κ4-cis-C,C′-cis-N,N′-MeL){κ2-C,N-(C6H4-py)}, mer-Ir(κ4-cis-C,C′-cis-N,N′-MeL){κ2-C,N-(C6H3R-py)}, and mer-Ir(κ4-trans-C,C′-cis-N,N′-MeL){κ2-C,N-(C6HR-py)} (R =
H, Me) have also been selectively obtained. The new emitters display
short lifetimes (0.7–4.6 μs) and quantum yields in a
doped poly(methyl methacrylate) film at 5 wt % and 2-methyltetrahydrofuran
at room temperature between 0.08 and 0.58. The acetylacetonate complex
Ir(κ4-cis-C,C′-cis-N,N′-MeL)(acac) has been used as a dopant for a red
PhOLED device with an electroluminescence λmax of
672 nm and an external quantum efficiency of 3.4% at 10 mA/cm2. The proligand 1-phenyl-3-(1-phenyl-1-(pyridine-2-yl)ethyl)isoquinoline
is used to generate a new family of neutral phosphorescent red iridium(III)
emitters containing a tetradentate ligand, formed by two different
bidentate units, and a third bidentate ligand with a good stereocontrol
of the resulting [6tt′ + 3b] products. One of the new emitters
has been used in the fabrication of an OLED device.
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Affiliation(s)
- Vadim Adamovich
- Universal Display Corporation, Ewing, New Jersey 08618, United States
| | - Llorenç Benavent
- 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
| | - 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
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7
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Orwat B, Oh MJ, Zaranek M, Kubicki M, Januszewski R, Kownacki I. Microwave-Accelerated C,N-Cyclometalation as a Route to Chloro-Bridged Iridium(III) Binuclear Precursors of Phosphorescent Materials: Optimization, Synthesis, and Studies of the Iridium(III) Dimer Behavior in Coordinating Solvents. Inorg Chem 2020; 59:9163-9176. [DOI: 10.1021/acs.inorgchem.0c01071] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Bartosz Orwat
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, St. Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
- Center for Advanced Technology, Adam Mickiewicz University in Poznań, St. Uniwersytetu Poznańskiego 10, 61-614 Poznań, Poland
| | - Myong Joon Oh
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, St. Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
- Center for Advanced Technology, Adam Mickiewicz University in Poznań, St. Uniwersytetu Poznańskiego 10, 61-614 Poznań, Poland
| | - Maciej Zaranek
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, St. Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
- Center for Advanced Technology, Adam Mickiewicz University in Poznań, St. Uniwersytetu Poznańskiego 10, 61-614 Poznań, Poland
| | - Maciej Kubicki
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, St. Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
| | - Rafał Januszewski
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, St. Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
- Center for Advanced Technology, Adam Mickiewicz University in Poznań, St. Uniwersytetu Poznańskiego 10, 61-614 Poznań, Poland
| | - Ireneusz Kownacki
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, St. Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
- Center for Advanced Technology, Adam Mickiewicz University in Poznań, St. Uniwersytetu Poznańskiego 10, 61-614 Poznań, Poland
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8
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Recent Advances on Visible Light Metal-Based Photocatalysts for Polymerization under Low Light Intensity. Catalysts 2019. [DOI: 10.3390/catal9090736] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
In recent years, polymerization processes activated by light have attracted a great deal of interest due to the wide range of applications in which this polymerization technique is involved. Parallel to the traditional industrial applications ranging from inks, adhesives, and coatings, the development of high-tech applications such as nanotechnology and 3D-printing have given a revival of interest to this polymerization technique known for decades. To initiate a photochemical polymerization, the key element is the molecule capable to interact with light, i.e., the photoinitiator and more generally the photoinitiating system, as a combination of several components is often required to create the reactive species responsible for the polymerization process. With the aim of reducing the photoinitiator content while optimizing the polymerization yield and/or the polymerization speed, photocatalytic systems have been developed, enabling the photosensitizer to be regenerated during the polymerization process. In this review, an overview of the photocatalytic systems developed for polymerizations carried out under a low light intensity and visible light is provided. Over the years, a wide range of organometallic photocatalysts has been proposed, addressing both the polymerization efficiency and/or the toxicity, as well as environmental issues.
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9
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Adamovich V, Boudreault PLT, Esteruelas MA, Gómez-Bautista D, López AM, Oñate E, Tsai JY. Preparation via a NHC Dimer Complex, Photophysical Properties, and Device Performance of Heteroleptic Bis(tridentate) Iridium(III) Emitters. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00265] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Vadim Adamovich
- Universal Display Corporation, 375 Phillips Boulevard, Ewing, New Jersey 08618, United States
| | | | - 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
| | - Daniel Gómez-Bautista
- 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
| | - 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, 375 Phillips Boulevard, Ewing, New Jersey 08618, United States
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10
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Grell Y, Hong Y, Huang X, Mochizuki T, Xie X, Harms K, Meggers E. Chiral-at-Rhodium Catalyst Containing Two Different Cyclometalating Ligands. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00105] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yvonne Grell
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35043 Marburg, Germany
| | - Yubiao Hong
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35043 Marburg, Germany
| | - Xiaoqiang Huang
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35043 Marburg, Germany
| | - Takuya Mochizuki
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35043 Marburg, Germany
- Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8603, Japan
| | - Xiulan Xie
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35043 Marburg, Germany
| | - Klaus Harms
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35043 Marburg, Germany
| | - Eric Meggers
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35043 Marburg, Germany
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11
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Ibrahim-Ouali M, Dumur F. Recent Advances on Metal-Based Near-Infrared and Infrared Emitting OLEDs. Molecules 2019; 24:E1412. [PMID: 30974838 PMCID: PMC6480698 DOI: 10.3390/molecules24071412] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Revised: 04/07/2019] [Accepted: 04/08/2019] [Indexed: 12/27/2022] Open
Abstract
During the past decades, the development of emissive materials for organic light-emitting diodes (OLEDs) in infrared region has focused the interest of numerous research groups as these devices can find interest in applications ranging from optical communication to defense. To date, metal complexes have been most widely studied to elaborate near-infrared (NIR) emitters due to their low energy emissive triplet states and their facile access. In this review, an overview of the different metal complexes used in OLEDs and enabling to get an infrared emission is provided.
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Affiliation(s)
| | - Frédéric Dumur
- Aix Marseille Univ, CNRS, ICR, UMR 7273, F-13397 Marseille, France.
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12
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Ma X, Liang J, Bai F, Ye K, Xu J, Zhu D, Bryce MR. New Mixed-C^
N
Ligand Tris-Cyclometalated IrIII
Complexes for Highly-Efficient Green Organic Light-Emitting Diodes with Low Efficiency Roll-Off. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800550] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Xiaoyu Ma
- College of Chemistry, State Key Laboratory of Supramolecular Structure and Materials; Jilin University; 2699 Qianjin Street 130012 Changchun P. R. China
| | - Jie Liang
- College of Chemistry, State Key Laboratory of Supramolecular Structure and Materials; Jilin University; 2699 Qianjin Street 130012 Changchun P. R. China
| | - Fuquan Bai
- College of Chemistry, State Key Laboratory of Supramolecular Structure and Materials; Jilin University; 2699 Qianjin Street 130012 Changchun P. R. China
| | - Kaiqi Ye
- College of Chemistry, State Key Laboratory of Supramolecular Structure and Materials; Jilin University; 2699 Qianjin Street 130012 Changchun P. R. China
| | - Jianing Xu
- College of Chemistry, State Key Laboratory of Supramolecular Structure and Materials; Jilin University; 2699 Qianjin Street 130012 Changchun P. R. China
| | - Dongxia Zhu
- Institute of Functional Material Chemistry; Faculty of Chemistry; Northeast Normal University; 5268 Renmin Road 130024 Changchun P. R. China
| | - Martin R. Bryce
- Department of Chemistry; Faculty of Chemistry; Durham University; 3LE Durham DH1 UK
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13
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Adamovich V, Bajo S, Boudreault PLT, Esteruelas MA, López AM, Martín J, Oliván M, Oñate E, Palacios AU, San-Torcuato A, Tsai JY, Xia C. Preparation of Tris-Heteroleptic Iridium(III) Complexes Containing a Cyclometalated Aryl-N-Heterocyclic Carbene Ligand. Inorg Chem 2018; 57:10744-10760. [DOI: 10.1021/acs.inorgchem.8b01367] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Vadim Adamovich
- Universal Display Corporation, 375 Phillips Boulevard, Ewing, New Jersey 08618, United States
| | - Sonia Bajo
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea, Centro de Innovación en Química Avanzada, Universidad de Zaragoza, CSIC, Zaragoza 50009, Spain
| | | | - Miguel A. Esteruelas
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea, Centro de Innovación en Química Avanzada, Universidad de Zaragoza, CSIC, Zaragoza 50009, Spain
| | - Ana M. López
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea, Centro de Innovación en Química Avanzada, Universidad de Zaragoza, CSIC, Zaragoza 50009, Spain
| | - Jaime Martín
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea, Centro de Innovación en Química Avanzada, Universidad de Zaragoza, CSIC, Zaragoza 50009, Spain
| | - Montserrat Oliván
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea, Centro de Innovación en Química Avanzada, Universidad de Zaragoza, CSIC, Zaragoza 50009, Spain
| | - Enrique Oñate
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea, Centro de Innovación en Química Avanzada, Universidad de Zaragoza, CSIC, Zaragoza 50009, Spain
| | - Adrián U. Palacios
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea, Centro de Innovación en Química Avanzada, Universidad de Zaragoza, CSIC, Zaragoza 50009, Spain
| | - Ainhoa San-Torcuato
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea, Centro de Innovación en Química Avanzada, Universidad de Zaragoza, CSIC, Zaragoza 50009, Spain
| | - Jui-Yi Tsai
- Universal Display Corporation, 375 Phillips Boulevard, Ewing, New Jersey 08618, United States
| | - Chuanjun Xia
- Universal Display Corporation, 375 Phillips Boulevard, Ewing, New Jersey 08618, United States
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14
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Tamura Y, Hisamatsu Y, Kazama A, Yoza K, Sato K, Kuroda R, Aoki S. Stereospecific Synthesis of Tris-heteroleptic Tris-cyclometalated Iridium(III) Complexes via Different Heteroleptic Halogen-Bridged Iridium(III) Dimers and Their Photophysical Properties. Inorg Chem 2018; 57:4571-4589. [DOI: 10.1021/acs.inorgchem.8b00323] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Yuichi Tamura
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Yosuke Hisamatsu
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Ayami Kazama
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Kenji Yoza
- Bruker AXS K.K., 3-9 Moriya-cho, Yokohama, Kanagawa 221-0022, Japan
| | - Kyouhei Sato
- Research Institute for Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Reiko Kuroda
- Research Institute for Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Shin Aoki
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
- Division of Medical-Science-Engineering Cooperation, Research Institute for Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
- Imaging Frontier Center, Research Institute for Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
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15
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Cudré Y, Franco de Carvalho F, Burgess GR, Male L, Pope SJA, Tavernelli I, Baranoff E. Tris-heteroleptic Iridium Complexes Based on Cyclometalated Ligands with Different Cores. Inorg Chem 2017; 56:11565-11576. [DOI: 10.1021/acs.inorgchem.7b01307] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Yanouk Cudré
- School of Chemistry, University of Birmingham, Edgbaston, B15 2TT Birmingham, U.K
| | | | - Gregory R. Burgess
- School of Chemistry, University of Birmingham, Edgbaston, B15 2TT Birmingham, U.K
| | - Louise Male
- School of Chemistry, University of Birmingham, Edgbaston, B15 2TT Birmingham, U.K
| | - Simon J. A. Pope
- School of Chemistry, Main Building, Cardiff University, Park Place, CF10 3AT Cardiff, U.K
| | - Ivano Tavernelli
- Zurich Research Laboratory, IBM Research GmbH, 8803 Rüschlikon, Switzerland
| | - Etienne Baranoff
- School of Chemistry, University of Birmingham, Edgbaston, B15 2TT Birmingham, U.K
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16
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Hisamatsu Y, Kumar S, Aoki S. Design and Synthesis of Tris-Heteroleptic Cyclometalated Iridium(III) Complexes Consisting of Three Different Nonsymmetric Ligands Based on Ligand-Selective Electrophilic Reactions via Interligand HOMO Hopping Phenomena. Inorg Chem 2016; 56:886-899. [DOI: 10.1021/acs.inorgchem.6b02519] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Yosuke Hisamatsu
- Faculty
of Pharmaceutical Sciences, ‡Division of Medical Science-Engineering
Cooperation, Research Institute for Science and Technology, and §Imaging Frontier
Center, Research Institute for Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Sarvendra Kumar
- Faculty
of Pharmaceutical Sciences, ‡Division of Medical Science-Engineering
Cooperation, Research Institute for Science and Technology, and §Imaging Frontier
Center, Research Institute for Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Shin Aoki
- Faculty
of Pharmaceutical Sciences, ‡Division of Medical Science-Engineering
Cooperation, Research Institute for Science and Technology, and §Imaging Frontier
Center, Research Institute for Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
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17
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Tamura Y, Hisamatsu Y, Kumar S, Itoh T, Sato K, Kuroda R, Aoki S. Efficient Synthesis of Tris-Heteroleptic Iridium(III) Complexes Based on the Zn2+-Promoted Degradation of Tris-Cyclometalated Iridium(III) Complexes and Their Photophysical Properties. Inorg Chem 2016; 56:812-833. [DOI: 10.1021/acs.inorgchem.6b02270] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Yuichi Tamura
- Faculty of Pharmaceutical Science and §Division of Medical-Science-Engineering
Cooperation, ∥Imaging Frontier Center, ‡Research Institute for Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Yosuke Hisamatsu
- Faculty of Pharmaceutical Science and §Division of Medical-Science-Engineering
Cooperation, ∥Imaging Frontier Center, ‡Research Institute for Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Sarvendra Kumar
- Faculty of Pharmaceutical Science and §Division of Medical-Science-Engineering
Cooperation, ∥Imaging Frontier Center, ‡Research Institute for Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Taiki Itoh
- Faculty of Pharmaceutical Science and §Division of Medical-Science-Engineering
Cooperation, ∥Imaging Frontier Center, ‡Research Institute for Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Kyouhei Sato
- Faculty of Pharmaceutical Science and §Division of Medical-Science-Engineering
Cooperation, ∥Imaging Frontier Center, ‡Research Institute for Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Reiko Kuroda
- Faculty of Pharmaceutical Science and §Division of Medical-Science-Engineering
Cooperation, ∥Imaging Frontier Center, ‡Research Institute for Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Shin Aoki
- Faculty of Pharmaceutical Science and §Division of Medical-Science-Engineering
Cooperation, ∥Imaging Frontier Center, ‡Research Institute for Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
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18
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Zanoni KPS, Coppo RL, Amaral RC, Murakami Iha NY. Ir(iii) complexes designed for light-emitting devices: beyond the luminescence color array. Dalton Trans 2015; 44:14559-73. [DOI: 10.1039/c5dt01644d] [Citation(s) in RCA: 92] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
This Perspective highlights the photophysics and recent breakthroughs in the study of emissive Ir(iii) compounds, including a personal account elucidating the role of molecular and electronic structures in controlling the photophysics of heteroleptic [Ir(N^C)2(L^X)]+ complexes.
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Affiliation(s)
- Kassio Papi Silva Zanoni
- Laboratory of Photochemistry and Energy Conversion
- Departamento de Química Fundamental
- Instituto de Química
- Universidade de São Paulo – USP
- 05508-000 São Paulo
| | - Rodolfo Lopes Coppo
- Laboratory of Photochemistry and Energy Conversion
- Departamento de Química Fundamental
- Instituto de Química
- Universidade de São Paulo – USP
- 05508-000 São Paulo
| | - Ronaldo Costa Amaral
- Laboratory of Photochemistry and Energy Conversion
- Departamento de Química Fundamental
- Instituto de Química
- Universidade de São Paulo – USP
- 05508-000 São Paulo
| | - Neyde Yukie Murakami Iha
- Laboratory of Photochemistry and Energy Conversion
- Departamento de Química Fundamental
- Instituto de Química
- Universidade de São Paulo – USP
- 05508-000 São Paulo
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