Functional Ir<sup>III</sup> Complexes and Their Applications

Chen, Zhuqi; Bian, Zuqiang; Huang, Chunhui

doi:10.1002/adma.200903233

Cited by 265 publications

(114 citation statements)

References 42 publications

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“…3.0 and 3.3 eV for 13 and 14, respectively. For the phenylpyridine complexes 15 and 16 similar assignments apply to the absorption spectra ( Figure 7, Table 3): 1 π-π* 250-350 nm, 1 MLCT and 3 MLCT 350-500 nm. 13,63 Figure 7.…”

Section: Electrochemical and Photophysical Studiesmentioning

confidence: 99%

“…This yielded the meso isomer (13a) as pale green crystals (172 mg, 0.12 mmol, 21%). 1 3.20; N, 9.62. The filtrate from the trituration was mixed with celite (ca.…”

Section: Nnʹ-bis(35-bis(trifluoromethyl)benzoyl)hydrazide (12)mentioning

confidence: 99%

“…This upfield shift is consistent with intramolecular  stacking in the complexes, as observed in the X-ray crystal structures (see below). Additional NMR spectra (where solubility allowed) including 1 The optimized ground state S 0 geometries were calculated at the B3LYP/LANL2DZ:3-21G* level with the LANL2DZ pseudopotential for the iridium atoms and the 3-21G* basis set for other atoms. These data are, therefore, directly comparable to previous computational studies on Ir(ppy) 3 and other diiridium complexes.…”

Section: Synthesismentioning

confidence: 99%

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Synthesis, Diastereomer Separation, and Optoelectronic and Structural Properties of Dinuclear Cyclometalated Iridium(III) Complexes with Bridging Diarylhydrazide Ligands

et al. 2017

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(2017) 'Synthesis, diastereomer separation, and optoelectronic and structural properties of dinuclear cyclometalated iridium(III) complexes with bridging diarylhydrazide ligands. ', Organometallics., 36 (5). pp. 981-993.Further information on publisher's website:https://doi.org/10.1021/acs.organomet.6b00887Publisher's copyright statement:This document is the Accepted Manuscript version of a Published Work that appeared in nal form in Organometallics, copyright c 2017 American Chemical Society after peer review and technical editing by the publisher. To access the nal edited and published work see https://doi.org/10.1021/acs.organomet.6b00887. Additional information:Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details. ABSTRACT: A series of diiridium complexes 13-16 bridged by diarylhydrazine ligands and cyclometalated by phenylpyridine or phenylpyrazole ligands was synthesized. In all cases the ɅΔ meso and ɅɅ/ΔΔ rac diastereomers were separated and characterized by single-crystal X-ray diffraction, revealing intramolecular - stacking between arenes of the bridging and cyclometalating ligands. Density functional theory (DFT) calculations show that in general the HOMOs are mainly localized on the iridium centers, the cyclometalating phenyl moieties and the central hydrazide components of the bridging ligands, while the LUMOs are primarily localized on the N-heterocycles (pyridine or pyrazole) of the cyclometalating ligands. This series of complexes, especially with the separated diastereomers, provides an ideal opportunity to study the effects of subtle structural changes on the optoelectronic properties of diiridium systems: significant differences are observed between the rac and meso isomers in some cases. A cyclic voltammetric study of the electrochemical properties of the eight complexes reveals strong intramolecular interactions between the iridium centers. The photophysical properties are reported in solution, and in rigid poly(methyl methacrylate) (PMMA) or 2-methyltetrahydrofuran (2-MeTHF) (at 77 K) matrices where some of the complexes are strongly emissive in the turquoise and green regions (Φ PL 42-68 ±10%) due to matrix-induced restricted intramolecular motion (RIM).

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Section: Electrochemical and Photophysical Studiesmentioning

confidence: 99%

“…This yielded the meso isomer (13a) as pale green crystals (172 mg, 0.12 mmol, 21%). 1 3.20; N, 9.62. The filtrate from the trituration was mixed with celite (ca.…”

Section: Nnʹ-bis(35-bis(trifluoromethyl)benzoyl)hydrazide (12)mentioning

confidence: 99%

Section: Synthesismentioning

confidence: 99%

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Synthesis, Diastereomer Separation, and Optoelectronic and Structural Properties of Dinuclear Cyclometalated Iridium(III) Complexes with Bridging Diarylhydrazide Ligands

et al. 2017

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“…Cyclometalated iridium complexes have attracted considerable attentioninmaterial research because of their outstanding performance in organic light-emitting diodes (OLED) [2,3]. In recent years, varioust ypes of cyclometalated Ir(III) complexes have been developed, such as homoleptic complexes, heteroleptic neutral complexes and cationic complexes [4][5][6].…”

Section: Discussionmentioning

confidence: 99%

Crystal structure of 2-(2-naphthyl)-4,6-dimethylpyrimidine, C16H14N2

Qiang¹,

Si²,

Dong³

et al. 2011

Zeitschrift Für Kristallographie - New Crystal Structures

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“…Cyclometalated Ir(III) complexes have emerged as av ery interesting class of compounds for various applications [2][3]. They represent the most promising phosphorescent dopants for organic light-emitting diodes (OLED) because of their relatively shorte xcited-state lifetime,h ighp hotoluminescence efficiency and excellent color tunability [4][5][6].…”

Section: Discussionmentioning

confidence: 99%

Crystal structure of dibenzoylmethane-k2O,O'-bis[2-(2- naphthyl)-3-methoxy-6-methylpyridine-k2C2,N]iridium(III), Ir(C34H28N2O2)2(C15H11O2)

Xu¹,

Dong²,

Hao³

et al. 2011

Zeitschrift Für Kristallographie - New Crystal Structures

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Functional Ir^III Complexes and Their Applications

Cited by 265 publications

References 42 publications

Synthesis, Diastereomer Separation, and Optoelectronic and Structural Properties of Dinuclear Cyclometalated Iridium(III) Complexes with Bridging Diarylhydrazide Ligands

Synthesis, Diastereomer Separation, and Optoelectronic and Structural Properties of Dinuclear Cyclometalated Iridium(III) Complexes with Bridging Diarylhydrazide Ligands

Crystal structure of 2-(2-naphthyl)-4,6-dimethylpyrimidine, C16H14N2

Crystal structure of dibenzoylmethane-k2O,O'-bis[2-(2- naphthyl)-3-methoxy-6-methylpyridine-k2C2,N]iridium(III), Ir(C34H28N2O2)2(C15H11O2)

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Functional IrIII Complexes and Their Applications

Cited by 265 publications

References 42 publications

Synthesis, Diastereomer Separation, and Optoelectronic and Structural Properties of Dinuclear Cyclometalated Iridium(III) Complexes with Bridging Diarylhydrazide Ligands

Synthesis, Diastereomer Separation, and Optoelectronic and Structural Properties of Dinuclear Cyclometalated Iridium(III) Complexes with Bridging Diarylhydrazide Ligands

Crystal structure of 2-(2-naphthyl)-4,6-dimethylpyrimidine, C16H14N2

Crystal structure of dibenzoylmethane-k2O,O'-bis[2-(2- naphthyl)-3-methoxy-6-methylpyridine-k2C2,N]iridium(III), Ir(C34H28N2O2)2(C15H11O2)

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Functional Ir^III Complexes and Their Applications