1
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Taniya OS, Kopchuk DS, Khasanov AF, S.Kovalev I, Santra S, Zyryanov GV, Majee A, Charushin VN, Chupakhin ON. Synthetic approaches and supramolecular properties of 2,2′:n′,m″-terpyridine domains (n = 3,4,5,6; m = 2,3,4) based on the 2,2′-bipyridine core as ligands with k2N-bidentate coordination mode. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213980] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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2
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Maekawa M, Terada K, Oda S, Sugimoto K, Okubo T, Kuroda-Sowa T. Syntheses and structural characterizations of mononuclear Ir(III) hydride complexes with 2,2′:6′,2″-terpyridine in the κ2N,N' and κ3N,N',N″ coordination modes. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2020.119962] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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3
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Tatarin SV, Kalle P, Taydakov IV, Varaksina EA, Korshunov VM, Bezzubov SI. Sterically hindered phenanthroimidazole ligands drive the structural flexibility and facile ligand exchange in cyclometalated iridium(III) complexes. Dalton Trans 2021; 50:6889-6900. [PMID: 33913992 DOI: 10.1039/d1dt00820j] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of bis-cyclometalated iridium(iii) complexes with 2-arylphenanthroimidazole "antenna" ligands containing electron-donor or withdrawing substituents and a more flexible ancillary aromatic β-diketone bearing the "anchoring" carboxymethyl function has been prepared. Thorough X-ray study of the complexes revealed significant structural strains caused by bulky cyclometalated 2-arylphenanthroimidazoles resulting in dramatic distortions of the iridium octahedron and even in twist of the phenanthrene fragment. The crystal data were corroborated by gas-phase DFT calculations whereby the geometry of the complexes was distorted in the same way. While redox potentials, absorption and emission maxima of the complexes displayed expected change upon the variation of the electron-donating ability of the cyclometalated ligands, the complexes readily exchanged the bidentate ancillary ligand in the presence of a negligible amount of protons that was inspected in solution by UV-Vis spectroscopy. Moreover, after hydrolysis of the carboxymethyl group the resulting complexes readily react with the surface of titanium dioxide giving unique binuclear structures in which the deprotonated carboxy group of the coordinated β-diketonate binds the second bis-cyclometalated unit by forming a four-membered metallacycle. Though the enhanced reactivity of the complexes is contrary to the common idea of the high inertness of iridium(iii) compounds it can be seen as a consequence of the interplay between the steric hindrance induced by the ligands and the strong preference of the iridium(iii) ion for octahedral geometry. This study demonstrates that the use of bulky ligands provides access to light-harvesting iridium(iii) complexes with required extent of lability which may be promising as photocatalysts and biologically active molecules.
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Affiliation(s)
- Sergei V Tatarin
- N.S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky pr. 31, Moscow 119991, Russia. and Lomonosov Moscow State University, Lenin's Hills, 1-3, Moscow, 119991, Russia
| | - Paulina Kalle
- N.S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky pr. 31, Moscow 119991, Russia. and Lomonosov Moscow State University, Lenin's Hills, 1-3, Moscow, 119991, Russia
| | - Ilya V Taydakov
- P.N. Lebedev Physical Institute, Russian Academy of Sciences, 53 Leninsky Prospect, Moscow 119991, Russia and G.V. Plekhanov Russian University of Economics, 36 Stremyanny Per., Moscow, 117997 Russian Federation
| | - Evgenia A Varaksina
- P.N. Lebedev Physical Institute, Russian Academy of Sciences, 53 Leninsky Prospect, Moscow 119991, Russia
| | - Vladislav M Korshunov
- P.N. Lebedev Physical Institute, Russian Academy of Sciences, 53 Leninsky Prospect, Moscow 119991, Russia and Bauman Moscow State Technical University, 2-ya Baumanskaya Str. 5/1, 105005, Moscow, Russia
| | - Stanislav I Bezzubov
- N.S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky pr. 31, Moscow 119991, Russia.
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4
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Tian X, De Pace C, Ruiz-Perez L, Chen B, Su R, Zhang M, Zhang R, Zhang Q, Wang Q, Zhou H, Wu J, Zhang Z, Tian Y, Battaglia G. A Cyclometalated Iridium (III) Complex as a Microtubule Probe for Correlative Super-Resolution Fluorescence and Electron Microscopy. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2003901. [PMID: 32815192 DOI: 10.1002/adma.202003901] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 07/12/2020] [Indexed: 06/11/2023]
Abstract
The visualization of microtubules by combining optical and electron microscopy techniques provides valuable information to understand correlated intracellular activities. However, the lack of appropriate probes to bridge both microscopic resolutions restricts the areas and structures that can be comprehended within such highly assembled structures. Here, a versatile cyclometalated iridium (III) complex is designed that achieves synchronous fluorescence-electron microscopy correlation. The selective insertion of the probe into a microtubule triggers remarkable fluorescence enhancement and promising electron contrast. The long-life, highly photostable probe allows live-cell super-resolution imaging of tubulin localization and motion with a resolution of ≈30 nm. Furthermore, correlative light-electron microscopy and energy-filtered transmission electron microscopy reveal the well-associated optical and electron signal at a high specificity, with an interspace of ≈41 Å of microtubule monomer in cells.
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Affiliation(s)
- Xiaohe Tian
- School of Life Science, Anhui University, Hefei, 230000, P. R. China
- Department of Chemistry, Anhui University, Hefei, 230000, P. R. China
- Institute of Physical Science and Information Technology, Anhui University, Hefei, 230000, P. R. China
- Department of Chemistry, University College London, London, WC1H 0AJ, UK
| | - Cesare De Pace
- Department of Chemistry, University College London, London, WC1H 0AJ, UK
- Institute for the Physics of Living Systems, University College London, London, WC1E 6BT, UK
- EPSRC/JEOL Centre for Liquid Phase Electron Microscopy, University College London, London, WC1H 0AJ, UK
| | - Lorena Ruiz-Perez
- Department of Chemistry, University College London, London, WC1H 0AJ, UK
- Institute for the Physics of Living Systems, University College London, London, WC1E 6BT, UK
- EPSRC/JEOL Centre for Liquid Phase Electron Microscopy, University College London, London, WC1H 0AJ, UK
| | - Bo Chen
- School of Materials Science and Engineering, Tongji University, Shanghai, 201804, China
| | - Rina Su
- School of Life Science, Anhui University, Hefei, 230000, P. R. China
| | - Mingzhu Zhang
- Department of Chemistry, Anhui University, Hefei, 230000, P. R. China
| | - Ruilong Zhang
- Department of Chemistry, Anhui University, Hefei, 230000, P. R. China
| | - Qiong Zhang
- Department of Chemistry, Anhui University, Hefei, 230000, P. R. China
| | - Qin Wang
- Biotechnology Centre, Anhui Agriculture University, Hefei, 230036, China
| | - Hongping Zhou
- Department of Chemistry, Anhui University, Hefei, 230000, P. R. China
| | - Jieying Wu
- Department of Chemistry, Anhui University, Hefei, 230000, P. R. China
| | - Zhongping Zhang
- Department of Chemistry, Anhui University, Hefei, 230000, P. R. China
- Institute of Physical Science and Information Technology, Anhui University, Hefei, 230000, P. R. China
- CAS Center for Excellence in Nanoscience, Institute of Intelligent Machines, Chinese Academy of Science, Hefei, 230031, China
| | - Yupeng Tian
- Department of Chemistry, Anhui University, Hefei, 230000, P. R. China
| | - Giuseppe Battaglia
- Department of Chemistry, Anhui University, Hefei, 230000, P. R. China
- Institute of Physical Science and Information Technology, Anhui University, Hefei, 230000, P. R. China
- Institute for the Physics of Living Systems, University College London, London, WC1E 6BT, UK
- EPSRC/JEOL Centre for Liquid Phase Electron Microscopy, University College London, London, WC1H 0AJ, UK
- Institute for Bioengineering of Catalonia, The Barcelona Institute for Science and Technology (BIST), Barcelona, 08007, Spain
- Catalan Institution for Research and Advanced Studies, Barcelona, 08010, Spain
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5
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Li G, Zhu D, Wang X, Su Z, Bryce MR. Dinuclear metal complexes: multifunctional properties and applications. Chem Soc Rev 2020; 49:765-838. [DOI: 10.1039/c8cs00660a] [Citation(s) in RCA: 88] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Dinuclear metal complexes have enabled breakthroughs in OLEDs, photocatalytic water splitting and CO2reduction, DSPEC, chemosensors, biosensors, PDT and smart materials.
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Affiliation(s)
- Guangfu Li
- Department of Chemistry
- Northeast Normal University
- Changchun
- P. R. China
| | - Dongxia Zhu
- Department of Chemistry
- Northeast Normal University
- Changchun
- P. R. China
| | - Xinlong Wang
- Department of Chemistry
- Northeast Normal University
- Changchun
- P. R. China
| | - Zhongmin Su
- Department of Chemistry
- Northeast Normal University
- Changchun
- P. R. China
- School of Chemistry and Environmental Engineering
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6
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Gao TB, Zhang JJ, Wen J, Yang XX, Ma HB, Cao DK, Jiang D. Single-Molecule MicroRNA Electrochemiluminescence Detection Using Cyclometalated Dinuclear Ir(III) Complex with Synergistic Effect. Anal Chem 2019; 92:1268-1275. [PMID: 31789019 DOI: 10.1021/acs.analchem.9b04431] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The realization of electrochemiluminescence (ECL) detection at the single-molecule level is a longstanding goal of ECL assay that requires a novel ECL probe with significantly enhanced luminescence. Here, the synergistic effect of electrochemiluminescence (ECL) is observed unprecedentedly in a new cyclometalated dinuclear Ir(III) complex [Ir2(dfppy)4(imiphenH)]PF6 (1·PF6, PF6- = hexafluorophosphate) in which two {Ir(dfppy)2}+ units are bridged by an imiphenH- ligand. The ECL intensity from complex 1·PF6 is 4.4 and 28.7 times as high as that of its reference mononuclear complexes 2 and 3·PF6, respectively. Theoretical calculation reveals that the S0 to S1 excitation is a local excitation in 1·PF6 with two electron-coupled Ir(III) centers, which contributes to the enhanced ECL. The synergistic effect of ECL in 1·PF6 can be used to detect microRNA 21 at the single-molecule level (microRNA 21: UAGCUUAUCAGACUGAUGUUGA), with detectable ECL emission from this complex intercalated in DNA/microRNA 21 duplex as low as 90 helix molecules. The finding of the synergistic effect of ECL will not only provide a novel strategy for the modulation of ECL intensity but also enable the detection of microRNA at the single-molecule level.
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Affiliation(s)
- Tai-Bao Gao
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210093 , P. R. China
| | - Jing-Jing Zhang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210093 , P. R. China.,School of Pharmacy and Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine , Nanjing Medical University , Nanjing 211126 , P. R. China
| | - Jing Wen
- Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210093 , P. R. China.,School of Materials Science and Engineering , Wuhan Instituent of Technology , Wuhan 430205 , P. R. China
| | - Xue-Xiao Yang
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210093 , P. R. China
| | - Hai-Bo Ma
- Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210093 , P. R. China
| | - Deng-Ke Cao
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210093 , P. R. China
| | - Dechen Jiang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210093 , P. R. China
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7
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Lauridsen PJ, Lu Z, Celaje JJA, Kedzie EA, Williams TJ. Conformational twisting of a formate-bridged diiridium complex enables catalytic formic acid dehydrogenation. Dalton Trans 2018; 47:13559-13564. [PMID: 30206593 PMCID: PMC6168401 DOI: 10.1039/c8dt03268h] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We previously reported that iridium complex 1a enables the first homogeneous catalytic dehydrogenation of neat formic acid and enjoys unusual stability through millions of turnovers. Binuclear iridium hydride species 5a, which features a provocative C2-symmetric geometry, was isolated from the reaction as a catalyst resting state. By synthesizing and carefully examining the catalytic initiation of a series of analogues to 1a, we establish here a strong correlation between the formation of C2-twisted iridium dimers analogous to 5a and the reactivity of formic acid dehydrogenation: an efficient C2 twist appears unique to 1a and essential to catalytic reactivity.
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Affiliation(s)
- Paul J Lauridsen
- Loker Hydrocarbon Research Institute and Department of Chemistry, University of Southern California, 837 Bloom Walk, Los Angeles, CA 90089-1661, USA.
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8
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Congrave DG, Hsu YT, Batsanov AS, Beeby A, Bryce MR. Sky-blue emitting bridged diiridium complexes: beneficial effects of intramolecular π-π stacking. Dalton Trans 2018; 47:2086-2098. [PMID: 29355875 DOI: 10.1039/c7dt04201a] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The potential of intramolecular π-π interactions to influence the photophysical properties of diiridium complexes is an unexplored topic, and provides the motivation for the present study. A series of diarylhydrazide-bridged diiridium complexes functionalised with phenylpyridine (ppy)-based cyclometalating ligands is reported. It is shown by NMR studies in solution and single crystal X-ray analysis that intramolecular π-π interactions between the bridging and cyclometalating ligands rigidify the complexes leading to high luminescence quantum efficiencies in solution and in doped films. Fluorine substituents on the phenyl rings of the bridge promote the intramolecular π-π interactions. Notably, these non-covalent interactions are harnessed in the rational design and synthesis of the first examples of highly emissive sky-blue diiridium complexes featuring conjugated bridging ligands, for which they play a vital role in the structural and photophysical properties. Experimental results are supported by computational studies.
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Affiliation(s)
- Daniel G Congrave
- Department of Chemistry, Durham University, South Road, Durham DH1 3LE, UK.
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9
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Li G, Congrave DG, Zhu D, Su Z, Bryce MR. Recent advances in luminescent dinuclear iridium(III) complexes and their application in organic electroluminescent devices. Polyhedron 2018. [DOI: 10.1016/j.poly.2017.11.029] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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10
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Congrave DG, Batsanov AS, Bryce MR. Highly luminescent 2-phenylpyridine-free diiridium complexes with bulky 1,2-diarylimidazole cyclometalating ligands. Dalton Trans 2018; 47:16524-16533. [DOI: 10.1039/c8dt04043e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
While a number of highly emissive dinuclear Ir(iii) complexes have been reported, they have generally been restricted to structures based on 2-phenylpyridine (Hppy) cyclometalates.
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11
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Cho YJ, Kim SY, Choi CM, Kim NJ, Kim CH, Cho DW, Son HJ, Pac C, Kang SO. Photophysics and Excited-State Properties of Cyclometalated Iridium(III)–Platinum(II) and Iridium(III)–Iridium(III) Bimetallic Complexes Bridged by Dipyridylpyrazine. Inorg Chem 2017; 56:5305-5315. [DOI: 10.1021/acs.inorgchem.7b00384] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yang-Jin Cho
- Department of Advanced Materials Chemistry, Korea University, Sejong 30019, Korea
| | - So-Yoen Kim
- Department of Advanced Materials Chemistry, Korea University, Sejong 30019, Korea
| | - Chang Min Choi
- Department of Chemistry, Chungbuk National University, Chungbuk 28644, Korea
| | - Nam Joon Kim
- Department of Chemistry, Chungbuk National University, Chungbuk 28644, Korea
| | - Chul Hoon Kim
- Department of Advanced Materials Chemistry, Korea University, Sejong 30019, Korea
| | - Dae Won Cho
- Department of Advanced Materials Chemistry, Korea University, Sejong 30019, Korea
| | - Ho-Jin Son
- Department of Advanced Materials Chemistry, Korea University, Sejong 30019, Korea
| | - Chyongjin Pac
- Department of Advanced Materials Chemistry, Korea University, Sejong 30019, Korea
| | - Sang Ook Kang
- Department of Advanced Materials Chemistry, Korea University, Sejong 30019, Korea
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12
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Congrave DG, Hsu YT, Batsanov AS, Beeby A, Bryce MR. Synthesis, Diastereomer Separation, and Optoelectronic and Structural Properties of Dinuclear Cyclometalated Iridium(III) Complexes with Bridging Diarylhydrazide Ligands. Organometallics 2017. [DOI: 10.1021/acs.organomet.6b00887] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Daniel G. Congrave
- Department of Chemistry, Durham University, South
Road, Durham DH1 3LE, U.K
| | - Yu-ting Hsu
- Department of Chemistry, Durham University, South
Road, Durham DH1 3LE, U.K
| | - Andrei S. Batsanov
- Department of Chemistry, Durham University, South
Road, Durham DH1 3LE, U.K
| | - Andrew Beeby
- Department of Chemistry, Durham University, South
Road, Durham DH1 3LE, U.K
| | - Martin R. Bryce
- Department of Chemistry, Durham University, South
Road, Durham DH1 3LE, U.K
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13
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Gao TB, Qu ZZ, Tang Z, Cao DK. Cyclometalated Ir(iii) complexes incorporating a photoactive anthracene-based ligand: syntheses, crystal structures and luminescence switching by light irradiation. Dalton Trans 2017; 46:15443-15450. [DOI: 10.1039/c7dt02967e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Compound aip and its Ir(iii) complexes [Ir(dfppy)2(aip)](PF6) (1) and [Ir(ppy)2(aip)](PF6) (2) show light-irradiation-induced luminescence switching behaviors.
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Affiliation(s)
- Tai-Bao Gao
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- P. R. China
| | - Zhong-Ze Qu
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- P. R. China
| | - Zhe Tang
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- P. R. China
| | - Deng-Ke Cao
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- P. R. China
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14
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Gong DP, Gao TB, Cao DK, Ward MD. Cyclometalated Ir(iii) complexes containing quinoline–benzimidazole-based N^N ancillary ligands: structural and luminescence modulation by varying the substituent groups or the protonation/deprotonation state of imidazole units. Dalton Trans 2017; 46:275-286. [DOI: 10.1039/c6dt04091h] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Four Ir(iii) complexes have been prepared, showing structural and luminescence modulation upon varying their substituent groups or protonation/deprotonation state.
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Affiliation(s)
- Dan-Ping Gong
- State Key Laboratory of Coordination Chemistry
- Coordination Chemistry Institute
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
| | - Tai-Bao Gao
- State Key Laboratory of Coordination Chemistry
- Coordination Chemistry Institute
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
| | - Deng-Ke Cao
- State Key Laboratory of Coordination Chemistry
- Coordination Chemistry Institute
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
| | - Michael D. Ward
- Department of Chemistry
- University of Sheffield
- Sheffield S3 7HF
- UK
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15
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Gao TB, Fan Q, Yu ZT, Cao DK. Cyclometalated Ir(iii) complexes based on 2-(2,4-difluorophenyl)-pyridine and 2,2′-(2-phenyl-1H-imidazole-4,5-diyl)dipyridine: acid/base-induced structural transformation and luminescence switching, and photocatalytic activity for hydrogen evolution. Dalton Trans 2017; 46:8180-8189. [DOI: 10.1039/c7dt01337j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
1·PF6and2show luminescence switching behaviors, and serve as photosensitizers for H2evolution.
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Affiliation(s)
- Tai-Bao Gao
- State Key Laboratory of Coordination Chemistry
- Coordination Chemistry Institute
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
| | - Qianwenhao Fan
- State Key Laboratory of Coordination Chemistry
- Coordination Chemistry Institute
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
| | - Zhen-Tao Yu
- Department of Materials Science and Engineering
- Nanjing University
- Nanjing 210093
- P. R. China
| | - Deng-Ke Cao
- State Key Laboratory of Coordination Chemistry
- Coordination Chemistry Institute
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
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16
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Betoré MP, Casado MA, García‐Orduña P, Lahoz FJ, Polo V, Oro LA. 2,5‐Norbornadiene C–C Coupling Reactions Mediated by Iridium Complexes. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201600336] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- M. Pilar Betoré
- Instituto de Síntesis Química y Catálisis Homogénea ISQCH Departamento de Química Inorgánica Universidad de Zaragoza – CSIC C/Pedro Cerbuna, 12 50009 Zaragoza Spain
| | - Miguel A. Casado
- Instituto de Síntesis Química y Catálisis Homogénea ISQCH Departamento de Química Inorgánica Universidad de Zaragoza – CSIC C/Pedro Cerbuna, 12 50009 Zaragoza Spain
| | - Pilar García‐Orduña
- Instituto de Síntesis Química y Catálisis Homogénea ISQCH Departamento de Química Inorgánica Universidad de Zaragoza – CSIC C/Pedro Cerbuna, 12 50009 Zaragoza Spain
| | - Fernando J. Lahoz
- Instituto de Síntesis Química y Catálisis Homogénea ISQCH Departamento de Química Inorgánica Universidad de Zaragoza – CSIC C/Pedro Cerbuna, 12 50009 Zaragoza Spain
| | - Víctor Polo
- Departamento de Química Física e Instituto de Biocomputación y Física de Sistemas Complejos (BIFI) Universidad de Zaragoza Zaragoza Spain
| | - Luis A. Oro
- Instituto de Síntesis Química y Catálisis Homogénea ISQCH Departamento de Química Inorgánica Universidad de Zaragoza – CSIC C/Pedro Cerbuna, 12 50009 Zaragoza Spain
- Centre of Research Excellence in Petroleum and Petrochemicals King Fahd University of Petroleum & Minerals 31261 Dhahran Saudi Arabia
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17
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Gong DP, Cao DK. Heteroleptic Ir(iii) and Pt(ii) complexes based on 2-(2,4-difluorophenyl)-pyridine and bisthienylethene BrLH: the influence of the metal center on structures, luminescence and photochromism. Dalton Trans 2016; 45:9328-35. [DOI: 10.1039/c6dt01175f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Based on bisthienylethene BrLH, [Ir(dfppy)2(BrL)]·3CH3OH (1) and [Pt(dfppy)(BrL)]·CH3OH (2) have been prepared. The two complexes are significantly different in structure, luminescence and photochromic behavior, due to their different metal centers.
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Affiliation(s)
- Dan-Ping Gong
- State Key Laboratory of Coordination Chemistry
- Coordination Chemistry Institute
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
| | - Deng-Ke Cao
- State Key Laboratory of Coordination Chemistry
- Coordination Chemistry Institute
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
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18
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Song MX, Li Y, Xu D, Deng RP, Bai FQ, Qin ZK. New exploration towards dinuclear iridium(ii) complexes materials under chlorine-bridged precursor. RSC Adv 2016. [DOI: 10.1039/c6ra10577g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
As an important precursor for synthesizing Iridium complex, two similar chlorine-bridged dinuclear complexes, which are bright, were studied by experiment and theory.
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Affiliation(s)
- Ming-Xing Song
- College of Information Technology
- Jilin Normal University
- Siping 136000
- People's Republic of China
| | - Yuan Li
- Institute of Theoretical Chemistry
- Jilin University
- Changchun 130023
- China
| | - Duo Xu
- College of Information Technology
- Jilin Normal University
- Siping 136000
- People's Republic of China
| | - Rui-Ping Deng
- State Key Laboratory of Rare Earth Resource Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- People's Republic of China
| | - Fu-Quan Bai
- Institute of Theoretical Chemistry
- Jilin University
- Changchun 130023
- China
| | - Zheng-Kun Qin
- College of Information Technology
- Jilin Normal University
- Siping 136000
- People's Republic of China
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19
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Gong DP, Gao TB, Cao DK, Ward MD. Bisthienylethenes containing an imidazole bridge unit and their Ir(iii) complexes: influence of substituent groups on photochromism and luminescence. RSC Adv 2016. [DOI: 10.1039/c6ra14555h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
This work reports the syntheses of tBuLH and tBuLMeH, and their complexes [Ir(dfppy)2(tBuL)]·2CH3OH (1) and Ir(dfppy)2(tBuLMe)] (2), and the influence of substituent groups –C(CH3)3 and –CH3 on their photochromic and luminescence behaviors.
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Affiliation(s)
- Dan-Ping Gong
- State Key Laboratory of Coordination Chemistry
- Coordination Chemistry Institute
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
| | - Tai-Bao Gao
- State Key Laboratory of Coordination Chemistry
- Coordination Chemistry Institute
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
| | - Deng-Ke Cao
- State Key Laboratory of Coordination Chemistry
- Coordination Chemistry Institute
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
| | - Michael D. Ward
- Department of Chemistry
- University of Sheffield
- Sheffield S3 7HF
- UK
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20
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Liao JL, Chi Y, Sie ZT, Ku CH, Chang CH, Fox MA, Low PJ, Tseng MR, Lee GH. Ir(III)-Based Phosphors with Bipyrazolate Ancillaries; Rational Design, Photophysics, and Applications in Organic Light-Emitting Diodes. Inorg Chem 2015; 54:10811-21. [DOI: 10.1021/acs.inorgchem.5b01835] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jia-Ling Liao
- Department
of Chemistry and Low Carbon Energy Research Center, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Yun Chi
- Department
of Chemistry and Low Carbon Energy Research Center, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Zong-Ting Sie
- Department of Photonics Engineering, Yuan Ze University, Chungli 32003, Taiwan
| | - Chia-Hao Ku
- Department of Photonics Engineering, Yuan Ze University, Chungli 32003, Taiwan
| | - Chih-Hao Chang
- Department of Photonics Engineering, Yuan Ze University, Chungli 32003, Taiwan
| | - Mark A. Fox
- Department of Chemistry, Durham University, South Road, Durham DH1
3LE, U.K
| | - Paul J. Low
- School of Chemistry and
Biochemistry, University of Western Australia, 35 Stirling Highway, Crawley 6009, Western Australia, Australia
| | - Meu-Rurng Tseng
- Material
and Chemical Research Laboratories, Industrial Technology Research Institute, Hsinchu 31040, Taiwan
| | - Gene-Hsiang Lee
- Instrumentation
Center, National Taiwan University, Taipei 10617, Taiwan
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21
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Zhao H, Simpson PV, Barlow A, Moxey GJ, Morshedi M, Roy N, Philip R, Zhang C, Cifuentes MP, Humphrey MG. Syntheses, Spectroscopic, Electrochemical, and Third-Order Nonlinear Optical Studies of a Hybrid Tris{ruthenium(alkynyl)/(2-phenylpyridine)}iridium Complex. Chemistry 2015; 21:11843-54. [PMID: 26179471 DOI: 10.1002/chem.201500951] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Indexed: 01/02/2023]
Abstract
The synthesis of fac-[Ir{N,C1′-(2,2′-NC5H4C6H3-5′-C≡C-1-C6H2-3,5-Et2-4-C≡CC6H4-4-C≡CH)}3] (10), which bears pendant ethynyl groups, and its reaction with [RuCl(dppe)2]PF6 to afford the heterobimetallic complex fac-[Ir{N,C1′-(2,2′-NC5H4C6H3-5′-C≡C-1-C6H2-3,5-Et2-4-C≡CC6H4-4-C≡C-trans-[RuCl(dppe)2])}3] (11) is described. Complex 10 is available from the two-step formation of iodo-functionalized fac-tris[2-(4-iodophenyl)pyridine]iridium(III) (6), followed by ligand-centered palladium-catalyzed coupling and desilylation reactions. Structural studies of tetrakis[2-(4-iodophenyl)pyridine-N,C1′](μ-dichloro)diiridium 5, 6, fac-[Ir{N,C1′-(2,2′-NC5H4C6H3-5′-C≡C-1-C6H2-3,5-Et2-4-C≡CH)}3] (8), and 10 confirm ligand-centered derivatization of the tris(2-phenylpyridine)iridium unit. Electrochemical studies reveal two (5) or one (6–10) Ir-centered oxidations for which the potential is sensitive to functionalization at the phenylpyridine groups but relatively insensitive to more remote derivatization. Compound 11 undergoes sequential Ru-centered and Ir-centered oxidation, with the potential of the latter significantly more positive than that of Ir(N,C′-NC5H4-2-C6H4-2)3. Ligand-centered π–π* transitions characteristic of the Ir(N,C′-NC5H4-2-C6H4-2)3 unit red-shift and gain in intensity following the iodo and alkynyl incorporation. Spectroelectrochemical studies of 6, 7, 9, and 11 reveal the appearance in each case of new low-energy LMCT bands following formal IrIII/IV oxidation preceded, in the case of 11, by the appearance of a low-energy LMCT band associated with the formal RuII/III oxidation process. Emission maxima of 6–10 reveal a red-shift upon alkynyl group introduction and arylalkynyl π-system lengthening; this process is quenched upon incorporation of the ligated ruthenium moiety on proceeding to 11. Third-order nonlinear optical studies of 11 were undertaken at the benchmark wavelengths of 800 nm (fs pulses) and 532 nm (ns pulses), the results from the former suggesting a dominant contribution from two-photon absorption, and results from the latter being consistent with primarily excited-state absorption.
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Affiliation(s)
- Huajian Zhao
- Research School of Chemistry, Australian National University, Canberra, ACT 2601 (Australia), Fax: (+61) 2-6125-0750.,School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094 (P.R. China)
| | - Peter V Simpson
- Research School of Chemistry, Australian National University, Canberra, ACT 2601 (Australia), Fax: (+61) 2-6125-0750
| | - Adam Barlow
- Research School of Chemistry, Australian National University, Canberra, ACT 2601 (Australia), Fax: (+61) 2-6125-0750
| | - Graeme J Moxey
- Research School of Chemistry, Australian National University, Canberra, ACT 2601 (Australia), Fax: (+61) 2-6125-0750
| | - Mahbod Morshedi
- Research School of Chemistry, Australian National University, Canberra, ACT 2601 (Australia), Fax: (+61) 2-6125-0750
| | - Nivya Roy
- Raman Research Institute, C. V. Raman Avenue, Sadashivanagar, Bangalore 560080 (India)
| | - Reji Philip
- Raman Research Institute, C. V. Raman Avenue, Sadashivanagar, Bangalore 560080 (India)
| | - Chi Zhang
- Research School of Chemistry, Australian National University, Canberra, ACT 2601 (Australia), Fax: (+61) 2-6125-0750.,School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094 (P.R. China)
| | - Marie P Cifuentes
- Research School of Chemistry, Australian National University, Canberra, ACT 2601 (Australia), Fax: (+61) 2-6125-0750
| | - Mark G Humphrey
- Research School of Chemistry, Australian National University, Canberra, ACT 2601 (Australia), Fax: (+61) 2-6125-0750.
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22
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Coe BJ, Helliwell M, Raftery J, Sánchez S, Peers MK, Scrutton NS. Cyclometalated Ir(iii) complexes of deprotonated N-methylbipyridinium ligands: effects of quaternised N centre position on luminescence. Dalton Trans 2015; 44:20392-405. [DOI: 10.1039/c5dt03753k] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The optical emission behaviour of tricationic IrIII complexes depends markedly on the position of the N-methyl unit in cyclometalating ligands.
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Affiliation(s)
- Benjamin J. Coe
- School of Chemistry
- The University of Manchester
- Manchester M13 9PL
- UK
| | | | - James Raftery
- School of Chemistry
- The University of Manchester
- Manchester M13 9PL
- UK
| | - Sergio Sánchez
- School of Chemistry
- The University of Manchester
- Manchester M13 9PL
- UK
| | - Martyn K. Peers
- Manchester Institute of Biotechnology
- Faculty of Life Sciences
- The University of Manchester
- Manchester M1 7DN
- UK
| | - Nigel S. Scrutton
- Manchester Institute of Biotechnology
- Faculty of Life Sciences
- The University of Manchester
- Manchester M1 7DN
- UK
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23
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Wei RH, Chen JF, Feng JQ, Hu JS, Cao DK. Two heteroleptic Ir(iii)–bisthienylethene compounds: syntheses, structures and aggregation-induced luminescence. RSC Adv 2015. [DOI: 10.1039/c4ra15977b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Bisthienylethene hnbdtiH and its heteroleptic complexes [Ir(dfppy)2(hnbdti)]·2CH3OH (1) and [Ir(ppy)2(hnbdti)]·CH3OH (2) were synthesized and characterized by crystal structures. Aggregation-induced phosphorescence emission was observed in 1.
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Affiliation(s)
- Ruo-Hong Wei
- State Key Laboratory of Coordination Chemistry
- Coordination Chemistry Institute
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
| | - Jun-Feng Chen
- State Key Laboratory of Coordination Chemistry
- Coordination Chemistry Institute
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
| | - Jia-Qi Feng
- State Key Laboratory of Coordination Chemistry
- Coordination Chemistry Institute
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
| | - Jiong-Sheng Hu
- State Key Laboratory of Coordination Chemistry
- Coordination Chemistry Institute
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
| | - Deng-Ke Cao
- State Key Laboratory of Coordination Chemistry
- Coordination Chemistry Institute
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
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24
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Cao DK, Wei RH, Li XX, Chen JF, Ward MD. Heteroleptic Ir(iii) complexes based on 2-(2,4-difluorophenyl)-pyridine and bisthienylethene: structures, luminescence and photochromic properties. Dalton Trans 2015; 44:4289-96. [DOI: 10.1039/c4dt03973d] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bisthienylethenes L1H and L2H, and their Ir(iii) complexes have been synthesized. Their crystal structures, luminescences and photochromisms have been studied.
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Affiliation(s)
- Deng-Ke Cao
- State Key Laboratory of Coordination Chemistry
- Coordination Chemistry Institute
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
| | - Ruo-Hong Wei
- State Key Laboratory of Coordination Chemistry
- Coordination Chemistry Institute
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
| | - Xiao-Xiong Li
- State Key Laboratory of Coordination Chemistry
- Coordination Chemistry Institute
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
| | - Jun-Feng Chen
- State Key Laboratory of Coordination Chemistry
- Coordination Chemistry Institute
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
| | - Michael D. Ward
- Department of Chemistry
- University of Sheffield
- Sheffield S3 7HF
- UK
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25
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Cao DK, Hu JS, Li MQ, Gong DP, Li XX, Ward MD. Two bisthienylethene–Ir(iii) complexes showing acid/base-induced structural transformation and on–off luminescence switching in solution. Dalton Trans 2015; 44:21008-15. [DOI: 10.1039/c5dt03809j] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Compounds [Ir(dfppy)2(pbdtiH)](PF6)·2CHCl3 (1-H) and [Ir(dfppy)2(pbdti)] (1) were synthesized based on bisthienylethene pbdtiH, showing NEt3/TFA-induced structural transformation and on–off luminescence switching.
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Affiliation(s)
- Deng-Ke Cao
- State Key Laboratory of Coordination Chemistry
- Coordination Chemistry Institute
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
| | - Jiong-Sheng Hu
- State Key Laboratory of Coordination Chemistry
- Coordination Chemistry Institute
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
| | - Min-Qiang Li
- State Key Laboratory of Coordination Chemistry
- Coordination Chemistry Institute
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
| | - Dan-Ping Gong
- State Key Laboratory of Coordination Chemistry
- Coordination Chemistry Institute
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
| | - Xiao-Xiong Li
- State Key Laboratory of Coordination Chemistry
- Coordination Chemistry Institute
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
| | - Michael D. Ward
- Department of Chemistry
- University of Sheffield
- Sheffield S3 7HF
- UK
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26
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Wong MY, Xie G, Tourbillon C, Sandroni M, Cordes DB, Slawin AMZ, Samuel IDW, Zysman-Colman E. Formylated chloro-bridged iridium(iii) dimers as OLED materials: opening up new possibilities. Dalton Trans 2015; 44:8419-32. [DOI: 10.1039/c4dt03127j] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
In this study, a series of four formyl-substituted chloro-bridged iridium(iii) dimers were prepared.
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Affiliation(s)
- Michael Y. Wong
- Organic Semiconductor Centre
- EaStCHEM School of Chemistry
- University of St Andrews
- St Andrews
- UK
| | - Guohua Xie
- Organic Semiconductor Centre
- School of Physics and Astronomy
- University of St. Andrews
- St. Andrews
- UK
| | | | - Martina Sandroni
- Département de Chimie
- Université de Sherbrooke
- Sherbrooke
- Canada J1 K 2R1
| | - David B. Cordes
- Organic Semiconductor Centre
- EaStCHEM School of Chemistry
- University of St Andrews
- St Andrews
- UK
| | - Alexandra M. Z. Slawin
- Organic Semiconductor Centre
- EaStCHEM School of Chemistry
- University of St Andrews
- St Andrews
- UK
| | - Ifor D. W. Samuel
- Organic Semiconductor Centre
- School of Physics and Astronomy
- University of St. Andrews
- St. Andrews
- UK
| | - Eli Zysman-Colman
- Organic Semiconductor Centre
- EaStCHEM School of Chemistry
- University of St Andrews
- St Andrews
- UK
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27
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Zheng Y, Batsanov AS, Fox MA, Al-Attar HA, Abdullah K, Jankus V, Bryce MR, Monkman AP. Bimetallic Cyclometalated Iridium(III) Diastereomers with Non-Innocent Bridging Ligands for High-Efficiency Phosphorescent OLEDs. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201407475] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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28
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Zheng Y, Batsanov AS, Fox MA, Al-Attar HA, Abdullah K, Jankus V, Bryce MR, Monkman AP. Bimetallic Cyclometalated Iridium(III) Diastereomers with Non-Innocent Bridging Ligands for High-Efficiency Phosphorescent OLEDs. Angew Chem Int Ed Engl 2014; 53:11616-9. [DOI: 10.1002/anie.201407475] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Indexed: 01/15/2023]
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29
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Cai JG, Yu ZT, Yuan YJ, Li F, Zou ZG. Dinuclear Iridium(III) Complexes Containing Bibenzimidazole and Their Application to Water Photoreduction. ACS Catal 2014. [DOI: 10.1021/cs500296s] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Jian-Guang Cai
- National
Laboratory for Infrared Physics, Chinese Academy of Sciences; Eco-Materials
and Renewable Energy Research Center, Department of Materials Science
and Engineering, Nanjing University, Kunshan Innovation Institute of Nanjing University, No. 22, Hankou Road, Nanjing, Jiangsu 210093, P. R. China
- School
of Chemical Engineering, Nanjing University of Science and Technology, No. 200, Xiaolingwei Street, Nanjing, Jiangsu 210094, P. R. China
| | - Zhen-Tao Yu
- National
Laboratory for Infrared Physics, Chinese Academy of Sciences; Eco-Materials
and Renewable Energy Research Center, Department of Materials Science
and Engineering, Nanjing University, Kunshan Innovation Institute of Nanjing University, No. 22, Hankou Road, Nanjing, Jiangsu 210093, P. R. China
| | - Yong-Jun Yuan
- National
Laboratory for Infrared Physics, Chinese Academy of Sciences; Eco-Materials
and Renewable Energy Research Center, Department of Materials Science
and Engineering, Nanjing University, Kunshan Innovation Institute of Nanjing University, No. 22, Hankou Road, Nanjing, Jiangsu 210093, P. R. China
| | - Feng Li
- School
of Chemical Engineering, Nanjing University of Science and Technology, No. 200, Xiaolingwei Street, Nanjing, Jiangsu 210094, P. R. China
| | - Zhi-Gang Zou
- National
Laboratory for Infrared Physics, Chinese Academy of Sciences; Eco-Materials
and Renewable Energy Research Center, Department of Materials Science
and Engineering, Nanjing University, Kunshan Innovation Institute of Nanjing University, No. 22, Hankou Road, Nanjing, Jiangsu 210093, P. R. China
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30
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Constable EC, Ertl CD, Housecroft CE, Zampese JA. Green-emitting iridium(iii) complexes containing sulfanyl- or sulfone-functionalized cyclometallating 2-phenylpyridine ligands. Dalton Trans 2014; 43:5343-56. [DOI: 10.1039/c3dt53626b] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
[Ir(C^N)2(bpy)][PF6] complexes with C^N ligands containing sulfone groups are green emitters (λmaxem = 493 and 523 to 525 nm) with high PLQYs; properties are compared to analogous complexes containing fluoro and sulfane groups.
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Affiliation(s)
| | - Cathrin D. Ertl
- Department of Chemistry
- University of Basel
- CH-4056 Basel, Switzerland
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31
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Donato L, McCusker CE, Castellano FN, Zysman-Colman E. Mono- and Dinuclear Cationic Iridium(III) Complexes Bearing a 2,5-Dipyridylpyrazine (2,5-dpp) Ligand. Inorg Chem 2013; 52:8495-504. [DOI: 10.1021/ic400478d] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Loïc Donato
- Département
de Chimie, Université de Sherbrooke, 2500 Boul. de l’Université, Sherbrooke, QC, Canada
J1K 2R1
| | - Catherine E. McCusker
- Department of Chemistry
and Center for Photochemical Sciences, Bowling Green State University, Bowling Green, Ohio 43403, United
States
| | - Felix N. Castellano
- Department of Chemistry
and Center for Photochemical Sciences, Bowling Green State University, Bowling Green, Ohio 43403, United
States
| | - Eli Zysman-Colman
- Département
de Chimie, Université de Sherbrooke, 2500 Boul. de l’Université, Sherbrooke, QC, Canada
J1K 2R1
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32
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Baranoff E, Bolink HJ, Constable EC, Delgado M, Häussinger D, Housecroft CE, Nazeeruddin MK, Neuburger M, Ortí E, Schneider GE, Tordera D, Walliser RM, Zampese JA. Tuning the photophysical properties of cationic iridium(III) complexes containing cyclometallated 1-(2,4-difluorophenyl)-1H-pyrazole through functionalized 2,2'-bipyridine ligands: blue but not blue enough. Dalton Trans 2013; 42:1073-87. [PMID: 23114723 DOI: 10.1039/c2dt32160b] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Four new heteroleptic iridium(III) complexes in the family [Ir(dfppz)(2)(N^N)](+), where Hdfppz = 1-(2,4-difluorophenyl)-1H-pyrazole and N^N = 6-phenyl-2,2'-bipyridine (1), 4,4'-(di-tert-butyl)-6-phenyl-2,2'-bipyridine (2), 4,4'-(di-tert-butyl)-6,6'-diphenyl-2,2'-bipyridine (3) and 4,4'-bis(dimethylamino)-2,2'-bipyridine (4), have been synthesized as the hexafluoridophosphate salts and fully characterized. Single crystal structures of ligand 3 and the precursor [Ir(2)(dfppz)(4)(μ-Cl)(2)] have been determined, along with the structures of the complexes 4{[Ir(dfppz)(2)(1)][PF(6)]}·3CH(2)Cl(2), [Ir(dfppz)(2)(3)][PF(6)]·CH(2)Cl(2) and [Ir(dfppz)(2)(4)][PF(6)]·CH(2)Cl(2). The role of inter- and intramolecular face-to-face π-stacking in the solid state is discussed. In the [Ir(dfppz)(2)(N^N)](+) (N^N = 1-3) cations, the phenyl substituent in ligands 1, 2 or 3 undergoes hindered rotation on the NMR timescale at 298 K in solution and the systems have been studied by variable temperature NMR spectroscopy. Acetonitrile solutions of [Ir(dfppz)(2)(N^N)][PF(6)] (N^N = 1-3) exhibit similar absorption spectra arising from ligand-based transitions; absorption intensity is enhanced on going to [Ir(dfppz)(2)(4)][PF(6)] and the spectrum extends further into the visible region. Acetonitrile solutions of the complexes are blue emitters with λ(em) = 517, 505, 501 and 493 nm for N^N = 1, 2, 3 and 4, respectively (λ(exc) = 280-310 nm). The redox behaviours of [Ir(dfppz)(2)(N^N)][PF(6)] (N^N = 1-3) are similar, and the introduction of the electron-donating NMe(2) substituents onto the N^N ligand shifts the metal-centred oxidation to less positive potentials. Theoretical calculations predict a mixed metal-to-ligand/ligand-to-ligand charge transfer (MLCT/LLCT) character for the emitting triplet state in agreement with the broad and unstructured character of the emission bands. The NMe(2) substituents enlarge the HOMO-LUMO gap and blue-shifts the emission of [Ir(dfppz)(2)(4)](+) that is centred on the ancillary ligand. These complexes, when processed into a thin film and sandwiched between two electrodes, lead to very low voltage operating electroluminescent devices. No additional components are needed, which demonstrates their electron and hole transport abilities in conjunction with the luminescent properties.
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Affiliation(s)
- Etienne Baranoff
- EPFL SB ISIC LPI, CH B2 425 (Bâtiment CH), Station 6, CH-1015 Lausanne, Switzerland
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33
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Ruiz J, Vicente C, de Haro C, Bautista D. Novel Bis-C,N-Cyclometalated Iridium(III) Thiosemicarbazide Antitumor Complexes: Interactions with Human Serum Albumin and DNA, and Inhibition of Cathepsin B. Inorg Chem 2013; 52:974-82. [DOI: 10.1021/ic302219v] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- José Ruiz
- Departamento de Química
Inorgánica and Regional Campus of International Excellence
“Campus Mare Nostrum”, Universidad de Murcia and Instituto Murciano de Investigación Biosanitaria (IMIB), E-30071- Murcia, Spain
| | - Consuelo Vicente
- Departamento de Química
Inorgánica and Regional Campus of International Excellence
“Campus Mare Nostrum”, Universidad de Murcia and Instituto Murciano de Investigación Biosanitaria (IMIB), E-30071- Murcia, Spain
| | - Concepción de Haro
- Departamento de Química
Inorgánica and Regional Campus of International Excellence
“Campus Mare Nostrum”, Universidad de Murcia and Instituto Murciano de Investigación Biosanitaria (IMIB), E-30071- Murcia, Spain
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34
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Synthesis, spectroscopic, and DFT studies of rhenium(І) complexes with phenanthrolineimidazo ligands containing thienyl moieties. Inorganica Chim Acta 2013. [DOI: 10.1016/j.ica.2012.07.032] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Chandrasekhar V, Mahanti B, Bandipalli P, Bhanuprakash K. Cyclometalated Iridium(III) Complexes Containing Hydroxide/Chloride Ligands: Isolation of Heterobridged Dinuclear Iridium(III) Compounds Containing μ-OH and μ-Pyrazole Ligands. Inorg Chem 2012; 51:10536-47. [DOI: 10.1021/ic300694m] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
| | - Bani Mahanti
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208 016, India
| | - Priyanka Bandipalli
- Inorganic and Physical
Chemistry Division, Indian Institute of Chemical Technology, Hyderabad 500 607, India
| | - Kotamarthi Bhanuprakash
- Inorganic and Physical
Chemistry Division, Indian Institute of Chemical Technology, Hyderabad 500 607, India
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M'hamedi A, Batsanov AS, Fox MA, Bryce MR, Abdullah K, Al-Attar HA, Monkman AP. Dinuclear iridium(iii) complexes of cyclometalated fluorenylpyridine ligands as phosphorescent dopants for efficient solution-processed OLEDs. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm31143g] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Soliman AM, Fortin D, Harvey PD, Zysman-Colman E. Intimate electronic coupling in cationic homodimeric iridium(iii) complexes. Dalton Trans 2012; 41:9382-93. [DOI: 10.1039/c2dt30836c] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Kadari A, Moncomble A, Ciofini I, Brahimi M, Adamo C. Theoretical Study of Absorption and Emission Properties of Green and Yellow Emitting Iridium(III) Complexes. J Phys Chem A 2011; 115:11861-5. [DOI: 10.1021/jp207008v] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Amel Kadari
- Laboratoire Physico-Chimie Théorique et Chimie Informatique, Faculté de Chimie, USTHB, BP 32 Al-alia, Babezzouar, Alger, Algeria
- Département de Chimie, Université Mouloud Maamri, Tizi Ouzou, Algeria
| | - Aurélien Moncomble
- Laboratoire d'Électrochimie, Chimie des Interfaces et Modélisation pour l'Énergie, École Nationale Supérieure de Chimie de Paris, Paris, France
| | - Ilaria Ciofini
- Laboratoire d'Électrochimie, Chimie des Interfaces et Modélisation pour l'Énergie, École Nationale Supérieure de Chimie de Paris, Paris, France
| | - Méziane Brahimi
- Laboratoire Physico-Chimie Théorique et Chimie Informatique, Faculté de Chimie, USTHB, BP 32 Al-alia, Babezzouar, Alger, Algeria
| | - Carlo Adamo
- Laboratoire d'Électrochimie, Chimie des Interfaces et Modélisation pour l'Énergie, École Nationale Supérieure de Chimie de Paris, Paris, France
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