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Jayabharathi J, Thanikachalam V, Thilagavathy S. Phosphorescent organic light-emitting devices: Iridium based emitter materials – An overview. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2023.215100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
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2
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Carrillo-Hermosilla F, Fernández-Galán R, Ramos A, Elorriaga D. Guanidinates as Alternative Ligands for Organometallic Complexes. Molecules 2022; 27:molecules27185962. [PMID: 36144698 PMCID: PMC9501388 DOI: 10.3390/molecules27185962] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 09/06/2022] [Accepted: 09/07/2022] [Indexed: 11/30/2022] Open
Abstract
For decades, ligands such as phosphanes or cyclopentadienyl ring derivatives have dominated Coordination and Organometallic Chemistry. At the same time, alternative compounds have emerged that could compete either for a more practical and accessible synthesis or for greater control of steric and electronic properties. Guanidines, nitrogen-rich compounds, appear as one such potential alternatives as ligands or proligands. In addition to occurring in a plethora of natural compounds, and thus in compounds of pharmacological use, guanidines allow a wide variety of coordination modes to different metal centers along the periodic table, with their monoanionic chelate derivatives being the most common. In this review, we focused on the organometallic chemistry of guanidinato compounds, discussing selected examples of coordination modes, reactivity and uses in catalysis or materials science. We believe that these amazing ligands offer a new promise in Organometallic Chemistry.
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Ge ZR, Tong X, Huang YC, Li WH, Li HY, Lu AD, Li TY. Highly Luminescent Dinuclear Iridium(III) Complexes Containing Phenanthroline-Based Neutral Ligands as Chemosensors for Cu 2+ Ion. Organometallics 2022. [DOI: 10.1021/acs.organomet.1c00617] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Ze-Rong Ge
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
| | - Xin Tong
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
| | - Yi-Chuan Huang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
| | - Wen-Hao Li
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
| | - Hong-Yan Li
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
| | - Ai-Dang Lu
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
| | - Tian-Yi Li
- School of Chemistry and Biological Engineering, Department of Physical Chemistry, University of Science and Technology Beijing, Beijing, 100083, China
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4
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Gong J, Zhang X. Coordination-based circularly polarized luminescence emitters: Design strategy and application in sensing. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2021.214329] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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5
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Loftus LM, Olson EC, Stewart DJ, Phillips AT, Arumugam K, Cooper TM, Haley JE, Grusenmeyer TA. Zn Coordination and the Identity of the Halide Ancillary Ligand Dramatically Influence the Excited-State Dynamics and Bimolecular Reactions of 2,3-Di(pyridin-2-yl)benzo[ g]quinoxaline. Inorg Chem 2021; 60:16570-16583. [PMID: 34662517 DOI: 10.1021/acs.inorgchem.1c02484] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The optical properties of coordination complexes with ligands containing nitrogen heterocycles have been extensively studied for decades. One subclass of these materials, metal complexes utilizing substituted pyrazines and quinoxalines as ligands, has been employed in a variety of photochemical applications ranging from photodynamic therapy to organic light-emitting diodes. A vast majority of this work focuses on characterization of the metal-to-ligand charge-transfer states in these metal complexes; however, literature reports rarely investigate the photophysics of the parent pyrazine or quinoxaline ligand or perform control experiments utilizing metal complexes that lack low-lying charge-transfer (CT) states in order to determine how metal-atom coordination influences the photophysical properties of the ligand. With this in mind, we examined the steady-state and time-resolved photophysics of 2,3-di(pyridin-2-yl)benzo[g]quinoxaline (dpb) and explored how the coordination of ZnX2 (X = Cl-, Br-, I-) affects the photophysical properties of dpb. In dpb, we find that the dominant mode of deactivation from the singlet excited state is intersystem crossing (ISC). Coordination of ZnX2 perturbs the relative energies of the ππ* and nπ* excited states of dpb, leading to drastically different rates of ISC as well as radiative and nonradiative decay in the [Zn(dpb)X2] complexes compared to dpb. These differences in the rates change the dominant singlet-excited-state decay pathway from ISC in dpb to a mixture of ISC and fluorescence in [Zn(dpb)Cl2] and [Zn(dpb)Br2] and to nonradiative decay in [Zn(dpb)I2]. Coordination of ZnX2 and the choice of the halide ligand also have profound effects on the rate constants for excited-state bimolecular reactions, including triplet-triplet annihilation and oxygen quenching. These results demonstrate that metal coordination, even in complexes lacking low-lying CT states, and the choice of the ancillary ligand can dramatically alter the photophysical properties of chromophores containing nitrogen heterocycles.
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Affiliation(s)
- Lauren M Loftus
- Materials and Manufacturing Directorate, Functional Materials Division, Air Force Research Laboratory, Wright-Patterson AFB, Ohio 45433-7750, United States.,General Dynamics Information Technology, 5100 Springfield Pike, Dayton, Ohio 45431, United States
| | - Emma C Olson
- Materials and Manufacturing Directorate, Functional Materials Division, Air Force Research Laboratory, Wright-Patterson AFB, Ohio 45433-7750, United States.,Southwestern Ohio Council for Higher Education, Dayton, Ohio 45420, United States
| | - David J Stewart
- Materials and Manufacturing Directorate, Functional Materials Division, Air Force Research Laboratory, Wright-Patterson AFB, Ohio 45433-7750, United States
| | - Alexis T Phillips
- Materials and Manufacturing Directorate, Functional Materials Division, Air Force Research Laboratory, Wright-Patterson AFB, Ohio 45433-7750, United States.,Southwestern Ohio Council for Higher Education, Dayton, Ohio 45420, United States
| | - Kuppuswamy Arumugam
- Wright State University, Department of Chemistry, 3640 Colonel Glenn Highway, Dayton, Ohio 45435, United States
| | - Thomas M Cooper
- Materials and Manufacturing Directorate, Functional Materials Division, Air Force Research Laboratory, Wright-Patterson AFB, Ohio 45433-7750, United States
| | - Joy E Haley
- Materials and Manufacturing Directorate, Functional Materials Division, Air Force Research Laboratory, Wright-Patterson AFB, Ohio 45433-7750, United States
| | - Tod A Grusenmeyer
- Materials and Manufacturing Directorate, Functional Materials Division, Air Force Research Laboratory, Wright-Patterson AFB, Ohio 45433-7750, United States
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6
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Francos J, Cadierno V. The chemistry of guanidinate complexes of the platinum group metals. Dalton Trans 2019; 48:9021-9036. [PMID: 31120072 DOI: 10.1039/c9dt01289c] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
In this Perspective article, recent advances in the chemistry of platinum group metal complexes containing mono- and dianionic guanidinate ligands, i.e. [(RN)2C-NR2]- and [(RN)2C[double bond, length as m-dash]NR]2-, respectively, are presented. Synthetic and structural aspects, reactivity studies, and applications of these compounds are discussed.
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Affiliation(s)
- Javier Francos
- Laboratorio de Compuestos Organometálicos y Catálisis (Unidad Asociada al CSIC), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Departamento de Química Orgánica e Inorgánica, IUQOEM, Facultad de Química, Universidad de Oviedo, Julián Clavería 8, E-33006 Oviedo, Spain.
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7
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Pashaei B, Karimi S, Shahroosvand H, Abbasi P, Pilkington M, Bartolotta A, Fresta E, Fernandez-Cestau J, Costa RD, Bonaccorso F. Polypyridyl ligands as a versatile platform for solid-state light-emitting devices. Chem Soc Rev 2019; 48:5033-5139. [DOI: 10.1039/c8cs00075a] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A comprehensive review of tuneable polypyridine complexes as the emissive components of OLED and LEC devices is presented, with a view to bridging the gap between molecular design and commercialization.
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Affiliation(s)
- Babak Pashaei
- Group for Molecular Engineering of Advanced Functional Materials (GMA)
- Department of Chemistry
- University of Zanjan
- Zanjan
- Iran
| | - Soheila Karimi
- Group for Molecular Engineering of Advanced Functional Materials (GMA)
- Department of Chemistry
- University of Zanjan
- Zanjan
- Iran
| | - Hashem Shahroosvand
- Group for Molecular Engineering of Advanced Functional Materials (GMA)
- Department of Chemistry
- University of Zanjan
- Zanjan
- Iran
| | - Parisa Abbasi
- Department of Chemistry
- Brock University
- St. Catharines
- Canada
| | | | | | - Elisa Fresta
- IMDEA Materials Institute
- Madrid
- Spain
- Universidad Autónoma de Madrid
- Departamento de Física Aplicada
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8
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Yan ZP, Liao K, Han HB, Su J, Zheng YX, Zuo JL. Chiral iridium(iii) complexes with four-membered Ir–S–P–S chelating rings for high-performance circularly polarized OLEDs. Chem Commun (Camb) 2019; 55:8215-8218. [DOI: 10.1039/c9cc03915e] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
CP-OLEDs with two series of chiral iridium(iii) complexes based on four-membered Ir–S–P–S chelating rings and chiral BINOL-based derivatives show excellent electroluminescence performances with obvious CPEL properties.
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Affiliation(s)
- Zhi-Ping Yan
- State Key Laboratory of Coordination Chemistry
- Collaborative Innovation Center of Advanced Microstructures
- Jiangsu Key Laboratory of Advanced Organic Materials
- School of Chemistry and Chemical Engineering
- Nanjing University
| | - Kang Liao
- State Key Laboratory of Coordination Chemistry
- Collaborative Innovation Center of Advanced Microstructures
- Jiangsu Key Laboratory of Advanced Organic Materials
- School of Chemistry and Chemical Engineering
- Nanjing University
| | - Hua-Bo Han
- State Key Laboratory of Coordination Chemistry
- Collaborative Innovation Center of Advanced Microstructures
- Jiangsu Key Laboratory of Advanced Organic Materials
- School of Chemistry and Chemical Engineering
- Nanjing University
| | - Jian Su
- State Key Laboratory of Coordination Chemistry
- Collaborative Innovation Center of Advanced Microstructures
- Jiangsu Key Laboratory of Advanced Organic Materials
- School of Chemistry and Chemical Engineering
- Nanjing University
| | - You-Xuan Zheng
- State Key Laboratory of Coordination Chemistry
- Collaborative Innovation Center of Advanced Microstructures
- Jiangsu Key Laboratory of Advanced Organic Materials
- School of Chemistry and Chemical Engineering
- Nanjing University
| | - Jing-Lin Zuo
- State Key Laboratory of Coordination Chemistry
- Collaborative Innovation Center of Advanced Microstructures
- Jiangsu Key Laboratory of Advanced Organic Materials
- School of Chemistry and Chemical Engineering
- Nanjing University
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9
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Stewart DJ, Shi J, Naranjo TR, Grusenmeyer TA, Artz JM, McCleese CL, O'Donnell RM, Cooper TM, Shensky WM, Haley JE. Manipulating triplet states: tuning energies, absorption, lifetimes, and annihilation rates in anthanthrene derivatives. Phys Chem Chem Phys 2018; 20:28412-28418. [PMID: 30403238 DOI: 10.1039/c8cp06048g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The photophysical properties of anthanthrene, four anthanthrene derivatives containing varying phenyl and p-tBu-phenyl substituents, and two anthanthrones with phenyl and p-tBu-phenyl substituents are examined. In general, as the anthanthrenes and anthanthrones become more substituted, red-shifts are observed in the peak maxima of the ground- and excited-state absorption and fluorescence spectra. The anthanthrones have large (>0.8) intersystem crossing (ISC) quantum yields (ΦT) likely caused by nπ* character in the ground or excited states. A bromo-substituted anthanthrene has a unity ISC yield due to an ISC rate constant of 2.5 × 1010 s-1 caused by heavy-atom induced, spin-orbit coupling. This leads to low fluorescence quantum yields (ΦF) in these three derivatives. The parent anthanthrene and remaining derivatives behave much differently. All have ΦF values from 0.58-0.84 with lower ΦT values as radiative decay outcompetes ISC. The anthanthrones have remarkable excited-state absorption with strong, broad transitions across the visible region with weaker transitions extending to nearly two μm. The anthanthrenes have very similar-shaped, broad transitions in the visible which can be shifted ∼60 nm by controlling the substituents. The triplet lifetimes range from 31-1200 μs and increase as the ISC yields decrease; the bromo-substituted anthanthrene is the shortest, followed by the anthanthrones then the other anthanthrenes. The rate of triplet-triplet annihilation is also affected by the presence of substituents; as the amount of steric bulk is increased, the rate of annihilation decreases.
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Affiliation(s)
- David J Stewart
- Air Force Research Laboratory, Materials and Manufacturing Directorate, Functional Materials Division, Wright-Patterson AFB, Ohio 45433-7750, USA.
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10
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Li TY, Wu J, Wu ZG, Zheng YX, Zuo JL, Pan Y. Rational design of phosphorescent iridium(III) complexes for emission color tunability and their applications in OLEDs. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2018.06.014] [Citation(s) in RCA: 163] [Impact Index Per Article: 27.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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11
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Esteruelas MA, Gómez-Bautista D, López AM, Oñate E, Tsai JY, Xia C. η1
-Arene Complexes as Intermediates in the Preparation of Molecular Phosphorescent Iridium(III) Complexes. Chemistry 2017; 23:15729-15737. [DOI: 10.1002/chem.201703252] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Indexed: 12/21/2022]
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
| | - 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 USA
| | - Chuanjun Xia
- Universal Display Corporation; 375 Phillips Boulevard Ewing New Jersey 08618 USA
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12
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Kajjam AB, Vaidyanathan S. Structural Mimics of Phenyl Pyridine (ppy) - Substituted, Phosphorescent Cyclometalated Homo and Heteroleptic Iridium(III) Complexes for Organic Light Emitting Diodes - An Overview. CHEM REC 2017; 18:293-349. [PMID: 28929624 DOI: 10.1002/tcr.201700035] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Indexed: 01/13/2023]
Abstract
Today organic light emitting diodes are a topic of significant academic and industrial research interest. OLED technology is used in commercially available displays, and efforts have been directed to improve this technology. Design and synthesis of phosphorescent based transition metals are capable of harvesting both singlet and triplet excitons and achieve 100 % internal quantum efficiency is an active area of research. Among all the transition metals, iridium is considered a prime candidate for OLEDs due to its prominent photophysical characteristics. In the present review, we have concentrated on the Iridium based homo and heteroleptic complexes that have dissimilar substitutions on phenylpyridine ligands, different ancillary ligands and the effect of substitution on HOMO/LUMO energies and a brief discussion and correlation on the photophysical, electrochemical and device performances of the different complexes have been reviewed for organic light emitting diodes.
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Affiliation(s)
- Aravind Babu Kajjam
- Department of Chemistry, National Institute of Technology, Rourkela, Odisha, India
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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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15
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Fan C, Yang C. Yellow/orange emissive heavy-metal complexes as phosphors in monochromatic and white organic light-emitting devices. Chem Soc Rev 2015; 43:6439-69. [PMID: 24927103 DOI: 10.1039/c4cs00110a] [Citation(s) in RCA: 224] [Impact Index Per Article: 24.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Owing to the electron spin-orbit coupling (SOC) and fast intersystem crossing (ISC), heavy-metal complexes (such as iridium(III), platinum(II) and osmium(II) complexes, etc.) are phosphorescent emitters at room temperature. Since 1998, heavy-metal complexes as phosphors have received considerable academic and industrial attention in the field of organic light-emitting diodes (OLEDs), because they can harvest both the singlet (25%) and triplet (75%) excitons for emission during the electro-generated processes. Among all the visible colors (blue, green, yellow, orange and red), the yellow/orange heavy-metal complexes play an important role for realizing full-color OLEDs as well as high-efficiency white OLEDs, and thus the development of highly efficient yellow/orange heavy-metal complexes is a pressing concern. In this article, we will review the progress on yellow/orange heavy-metal complexes as phosphors in OLEDs. The general principles and useful tactics for designing the yellow/orange heavy-metal complexes will be systematically summarized. The structure-property relationship and electrophosphorescence performance of the yellow/orange heavy-metal complexes in monochromatic phosphorescent OLEDs (PhOLEDs) and white OLEDs (WOLEDs) will be comprehensively surveyed and discussed.
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Affiliation(s)
- Cong Fan
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Hubei Key Lab on Organic and Polymeric Optoelectronic Materials, Department of Chemistry, Wuhan University, Wuhan, 430072, People's Republic of China.
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16
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Huixia X, Peng S, Dan Z, Tingting Y, Yuying H, Hua W, Heping S, Bingshe X. Synthesis and photoelectric performances of blue-green emitting iridium phenylpyridine complexes using N,N′-heteroaromatic ancillary ligands. NEW J CHEM 2015. [DOI: 10.1039/c5nj00195a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Four (ppy)2Ir(N∧N) complexes were synthesized and the effects of their molecular structures on photoelectric performances were investigated in detail.
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Affiliation(s)
- Xu Huixia
- Key Laboratory of Interface Science and Engineering in Advanced Materials
- Ministry of Education
- Taiyuan University of Technology
- Taiyuan 030024
- P. R. China
| | - Sun Peng
- Key Laboratory of Interface Science and Engineering in Advanced Materials
- Ministry of Education
- Taiyuan University of Technology
- Taiyuan 030024
- P. R. China
| | - Zhao Dan
- Key Laboratory of Interface Science and Engineering in Advanced Materials
- Ministry of Education
- Taiyuan University of Technology
- Taiyuan 030024
- P. R. China
| | - Yang Tingting
- Key Laboratory of Interface Science and Engineering in Advanced Materials
- Ministry of Education
- Taiyuan University of Technology
- Taiyuan 030024
- P. R. China
| | - Hao Yuying
- Key Laboratory of Interface Science and Engineering in Advanced Materials
- Ministry of Education
- Taiyuan University of Technology
- Taiyuan 030024
- P. R. China
| | - Wang Hua
- Key Laboratory of Interface Science and Engineering in Advanced Materials
- Ministry of Education
- Taiyuan University of Technology
- Taiyuan 030024
- P. R. China
| | - Shi Heping
- School of Chemistry and Chemical Engineering Shanxi University
- Taiyuan 03006
- P. R. China
| | - Xu Bingshe
- Key Laboratory of Interface Science and Engineering in Advanced Materials
- Ministry of Education
- Taiyuan University of Technology
- Taiyuan 030024
- P. R. China
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18
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Ren XY, Wu Y, Wang L, Zhao L, Zhang M, Geng Y, Su ZM. Theoretical characterization and design of highly efficient iridium (III) complexes bearing guanidinate ancillary ligand. J Mol Graph Model 2014; 51:149-57. [PMID: 24927050 DOI: 10.1016/j.jmgm.2014.05.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2014] [Revised: 04/22/2014] [Accepted: 05/17/2014] [Indexed: 11/29/2022]
Abstract
A density functional theory/time-depended density functional theory was used to investigate the synthesized guanidinate-based iridium(III) complex [(ppy)2Ir{(N(i)Pr)2C(NPh2)}] (1) and two designed derivatives (2 and 3) to determine the influences of different cyclometalated ligands on photophysical properties. Except the conventional discussions on geometric relaxations, absorption and emission properties, many relevant parameters, including spin-orbital coupling (SOC) matrix elements, zero-field-splitting parameters, radiative rate constants (kr) and so on were quantitatively evaluated. The results reveal that the replacement of the pyridine ring in the 2-phenylpyridine ligand with different diazole rings cannot only enlarge the frontier molecular orbital energy gaps, resulting in a blue-shift of the absorption spectra for 2 and 3, but also enhance the absorption intensity of 3 in the lower-energy region. Furthermore, it is intriguing to note that the photoluminescence quantum efficiency (ΦPL) of 3 is significantly higher than that of 1. This can be explained by its large SOC value<T1|HSO|Sn>(n=3-4) and large transition electric dipole moment (μS3), which could significantly contribute to a larger kr. Besides, compared with 1, the higher emitting energy (ET1) and smaller <S0|HSO|T1>(2) value for 3 may lead to a smaller non-radiative decay rate. Additionally, the detailed results also indicate that compared to 1 with pyridine ring, 3 with imidazole ring performs a better hole injection ability. Therefore, the designed complex 3 can be expected as a promising candidate for highly efficient guanidinate-based phosphorescence emitter for OLEDs applications.
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Affiliation(s)
- Xin-Yao Ren
- Institute of Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun 130024, People's Republic of China
| | - Yong Wu
- Institute of Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun 130024, People's Republic of China
| | - Li Wang
- Institute of Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun 130024, People's Republic of China
| | - Liang Zhao
- Institute of Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun 130024, People's Republic of China
| | - Min Zhang
- Institute of Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun 130024, People's Republic of China.
| | - Yun Geng
- Institute of Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun 130024, People's Republic of China.
| | - Zhong-Min Su
- Institute of Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun 130024, People's Republic of China.
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Wang CC, Jing YM, Li TY, Xu QL, Zhang S, Li WN, Zheng YX, Zuo JL, You XZ, Wang XQ. Syntheses, Photoluminescence, and Electroluminescence of Iridium(III) Complexes with Fluorinated 2-Phenylpyridine as Main Ligands and Tertraphenylimidodiphosphinate as Ancillary Ligand. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201300861] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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20
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Xu QL, Wang CC, Li TY, Teng MY, Zhang S, Jing YM, Yang X, Li WN, Lin C, Zheng YX, Zuo JL, You XZ. Syntheses, Photoluminescence, and Electroluminescence of a Series of Iridium Complexes with Trifluoromethyl-Substituted 2-Phenylpyridine as the Main Ligands and Tetraphenylimidodiphosphinate as the Ancillary Ligand. Inorg Chem 2013; 52:4916-25. [DOI: 10.1021/ic302510p] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Qiu-Lei Xu
- State Key Laboratory of Coordination
Chemistry, Nanjing National Laboratory of Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, People’s
Republic of China
| | - Cheng-Cheng Wang
- State Key Laboratory of Coordination
Chemistry, Nanjing National Laboratory of Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, People’s
Republic of China
| | - Tian-Yi Li
- State Key Laboratory of Coordination
Chemistry, Nanjing National Laboratory of Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, People’s
Republic of China
| | - Ming-Yu Teng
- State Key Laboratory of Coordination
Chemistry, Nanjing National Laboratory of Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, People’s
Republic of China
| | - Song Zhang
- State Key Laboratory of Coordination
Chemistry, Nanjing National Laboratory of Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, People’s
Republic of China
| | - Yi-Ming Jing
- State Key Laboratory of Coordination
Chemistry, Nanjing National Laboratory of Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, People’s
Republic of China
| | - Xu Yang
- State Key Laboratory of Coordination
Chemistry, Nanjing National Laboratory of Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, People’s
Republic of China
| | - Wei-Nan Li
- State Key Laboratory of Coordination
Chemistry, Nanjing National Laboratory of Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, People’s
Republic of China
| | - Chen Lin
- State Key Laboratory of Coordination
Chemistry, Nanjing National Laboratory of Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, People’s
Republic of China
| | - You-Xuan Zheng
- State Key Laboratory of Coordination
Chemistry, Nanjing National Laboratory of Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, People’s
Republic of China
| | - Jing-Lin Zuo
- State Key Laboratory of Coordination
Chemistry, Nanjing National Laboratory of Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, People’s
Republic of China
| | - Xiao-Zeng You
- State Key Laboratory of Coordination
Chemistry, Nanjing National Laboratory of Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, People’s
Republic of China
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Zhu S, Song Q, Zhang S, Ding Y. Effects of the frontier orbitals on the electrochemical and electrochemiluminescent properties of the bis-cyclometalated iridium(III) complexes with different ligands. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2012.11.015] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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22
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Edelmann FT. Recent Progress in the Chemistry of Metal Amidinates and Guanidinates. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2013. [DOI: 10.1016/b978-0-12-407692-1.00002-3] [Citation(s) in RCA: 104] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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23
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Zhang F, Wang L, Chang SH, Huang KL, Chi Y, Hung WY, Chen CM, Lee GH, Chou PT. Phosphorescent Ir(iii) complexes with both cyclometalate chromophores and phosphine-silanolate ancillary: concurrent conversion of organosilane to silanolate. Dalton Trans 2013; 42:7111-9. [DOI: 10.1039/c3dt32408g] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Garcı́a-Álvarez R, Suárez FJ, Dı́ez J, Crochet P, Cadierno V, Antiñolo A, Fernández-Galán R, Carrillo-Hermosilla F. Ruthenium(II) Arene Complexes with Asymmetrical Guanidinate Ligands: Synthesis, Characterization, and Application in the Base-Free Catalytic Isomerization of Allylic Alcohols. Organometallics 2012. [DOI: 10.1021/om3009124] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Rocío Garcı́a-Álvarez
- Laboratorio de Compuestos Organometálicos y Catálisis
(Unidad Asociada al CSIC), Departamento
de Quı́mica Orgánica e Inorgánica, Instituto Universitario de Quı́mica Organometálica
“Enrique Moles”, Facultad de Quı́mica, Universidad de Oviedo, Julián Clavería
8, E-33006 Oviedo, Spain
| | - Francisco J. Suárez
- Laboratorio de Compuestos Organometálicos y Catálisis
(Unidad Asociada al CSIC), Departamento
de Quı́mica Orgánica e Inorgánica, Instituto Universitario de Quı́mica Organometálica
“Enrique Moles”, Facultad de Quı́mica, Universidad de Oviedo, Julián Clavería
8, E-33006 Oviedo, Spain
| | - Josefina Dı́ez
- Laboratorio de Compuestos Organometálicos y Catálisis
(Unidad Asociada al CSIC), Departamento
de Quı́mica Orgánica e Inorgánica, Instituto Universitario de Quı́mica Organometálica
“Enrique Moles”, Facultad de Quı́mica, Universidad de Oviedo, Julián Clavería
8, E-33006 Oviedo, Spain
| | - Pascale Crochet
- Laboratorio de Compuestos Organometálicos y Catálisis
(Unidad Asociada al CSIC), Departamento
de Quı́mica Orgánica e Inorgánica, Instituto Universitario de Quı́mica Organometálica
“Enrique Moles”, Facultad de Quı́mica, Universidad de Oviedo, Julián Clavería
8, E-33006 Oviedo, Spain
| | - Victorio Cadierno
- Laboratorio de Compuestos Organometálicos y Catálisis
(Unidad Asociada al CSIC), Departamento
de Quı́mica Orgánica e Inorgánica, Instituto Universitario de Quı́mica Organometálica
“Enrique Moles”, Facultad de Quı́mica, Universidad de Oviedo, Julián Clavería
8, E-33006 Oviedo, Spain
| | - Antonio Antiñolo
- Departamento de Quı́mica
Inorgánica, Orgánica y Bioquı́mica, Facultad de Ciencias Quı́micas, Campus de Ciudad Real, Universidad de Castilla-La Mancha, Campus Universitario,
E-13071 Ciudad Real, Spain
| | - Rafael Fernández-Galán
- Departamento de Quı́mica
Inorgánica, Orgánica y Bioquı́mica, Facultad de Ciencias Quı́micas, Campus de Ciudad Real, Universidad de Castilla-La Mancha, Campus Universitario,
E-13071 Ciudad Real, Spain
| | - Fernando Carrillo-Hermosilla
- Departamento de Quı́mica
Inorgánica, Orgánica y Bioquı́mica, Facultad de Ciencias Quı́micas, Campus de Ciudad Real, Universidad de Castilla-La Mancha, Campus Universitario,
E-13071 Ciudad Real, Spain
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25
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Li C, Zhu S, Ding Y, Song Q. Electrochemiluminescence of iridium complexes with ammonia in dimethylformamide and its analytical application for ammonia detection. J Electroanal Chem (Lausanne) 2012. [DOI: 10.1016/j.jelechem.2012.07.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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26
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Syntheses and photophysical properties of cyclometallated iridium (III) acetylide complexes. INORG CHEM COMMUN 2012. [DOI: 10.1016/j.inoche.2012.05.039] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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