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Zhao T, Duan P. Photon Upconversion Cooperates with Downshifting in Chiral Systems: Modulation, Amplification, and Applications of Circularly Polarized Luminescence. Angew Chem Int Ed Engl 2024; 63:e202406524. [PMID: 38702292 DOI: 10.1002/anie.202406524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Revised: 05/02/2024] [Accepted: 05/03/2024] [Indexed: 05/06/2024]
Abstract
Circularly polarized luminescence (CPL)-active materials are increasingly recognized for their potential applications such as 3D imaging, data storage, and optoelectronic devices. Typically, CPL materials have required high-energy (HE) photons for excitation to emit low-energy (LE) circularly polarized light, a process known as downshifting CPL (DSCPL). However, the emergence of upconverted CPL (UCCPL), where the absorption of multi LE photons results in the emission of a single HE photon with circular polarization, has recently attracted considerable attention. This minireview highlights the intricate relationship between upconversion and CPL phenomena. During upconversion, the dissymmetry factor (glum) value can be improved in certain systems. Additionally, the integration of both LE and HE photons in upconversion-downshifting-synergistic systems offers avenues for dual-excitation or dual-emission CPL functionalities. More in detail, the emerging UCCPL based on various photon upconversion mechanisms and their synergy with DSCPL are introduced. Additionally, several examples that demonstrate the applications of UCCPL are presented to highlight the future opportunities.
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Affiliation(s)
- Tonghan Zhao
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology (NCNST), No.11, ZhongGuanCun BeiYiTiao, Beijing, 100190, P.R. China
- Present address T. Zhao, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Pengfei Duan
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology (NCNST), No.11, ZhongGuanCun BeiYiTiao, Beijing, 100190, P.R. China
- Present address T. Zhao, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
- University of Chinese Academy of Sciences, No.1 Yanqihu East Rd, Huairou District, Beijing, 100049, P. R. China
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2
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Tauchi D, Kanno K, Hasegawa M, Mazaki Y, Tsubaki K, Sugiura KI, Shiga T, Mori S, Nishikawa H. Aggregation-induced enhanced fluorescence emission of chiral Zn(II) complexes coordinated by Schiff-base type binaphthyl ligands. Dalton Trans 2024; 53:8926-8933. [PMID: 38687172 DOI: 10.1039/d4dt00903g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
A pair of novel chiral Zn(II) complexes coordinated by Schiff-base type ligands derived from BINOL (1,1'-bi-2-naphthol), R-/S-Zn, were synthesized. X-ray crystallography revealed the presence of two crystallographically independent complexes; one has a distorted trigonal-bipyramidal structure coordinated by two binaphthyl ligands and one disordered methanol molecule (molecule A), while the other has a distorted tetrahedral structure coordinated by two binaphthyl ligands (molecule B). Numerous CH⋯π and CH⋯O interactions were identified, contributing to the formation of a 3-dimensional rigid network structure. Both R-/S-Zn exhibited fluorescence in both CH2Cl2 solutions and powder samples, with the photoluminescence quantum yields (PLQYs) of powder samples being twice as large as those in solutions, indicating aggregation-induced enhanced emission (AIEE). The AIEE properties were attributed to the restraint of the molecular motion arising from the 3-dimensional intermolecular interactions. CD and CPL spectra were observed for R-/S-Zn in both solutions and powders. The dissymmetry factors, gabs and gCPL values, were within the order of 10-3 to 10-4 magnitudes, comparable to those reported for chiral Zn(II) complexes in previous studies.
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Affiliation(s)
- Daiki Tauchi
- Graduate School of Science and Engineering, Ibaraki University, 2-1-1 Bunkyo, Mito, Ibaraki 310-8512, Japan.
| | - Katsuya Kanno
- Graduate School of Science and Engineering, Ibaraki University, 2-1-1 Bunkyo, Mito, Ibaraki 310-8512, Japan.
| | - Masashi Hasegawa
- Graduate School of Science, Kitasato University, Kanagawa 252-0373, Japan
| | - Yasuhiro Mazaki
- Graduate School of Science, Kitasato University, Kanagawa 252-0373, Japan
| | - Kazunori Tsubaki
- Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Kyoto 606-8522, Japan
| | - Ken-Ichi Sugiura
- Graduate School of Science, Tokyo Metropolitan University, Tokyo, 192-0397, Japan
| | - Takuya Shiga
- Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba 305-8577, Japan
| | - Seiji Mori
- Graduate School of Science and Engineering, Ibaraki University, 2-1-1 Bunkyo, Mito, Ibaraki 310-8512, Japan.
| | - Hiroyuki Nishikawa
- Graduate School of Science and Engineering, Ibaraki University, 2-1-1 Bunkyo, Mito, Ibaraki 310-8512, Japan.
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3
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Kanbe A, Yokoi K, Yamada Y, Tsurui M, Kitagawa Y, Hasegawa Y, Ogata D, Yuasa J, Aoki S. Optical Resolution of Carboxylic Acid Derivatives of Homoleptic Cyclometalated Iridium(III) Complexes via Diastereomers Formed with Chiral Auxiliaries. Inorg Chem 2023; 62:11325-11341. [PMID: 37432912 PMCID: PMC10369494 DOI: 10.1021/acs.inorgchem.3c00685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Indexed: 07/13/2023]
Abstract
We report on a facile method for the optical resolution of cyclometalated iridium(III) (Ir(III)) complexes via diastereomers formed with chiral auxiliaries. The racemic carboxylic acids of Ir(III) complexes (fac-4 (fac-Ir(ppyCO2H)3 (ppy: 2-phenylpyridine)), fac-6 (fac-Ir(tpyCO2H)3 (tpy: 2-(4'-tolyl)pyridine)), and fac-13 (fac-Ir(mpiqCO2H)3 (mpiq: 1-(4'-methylphenyl)isoquinoline))) were converted into the diastereomers, Δ- and Λ-forms of fac-9 (from fac-6), fac-10 (from fac-4), fac-11 (from fac-6), and fac-14 (from fac-13), respectively, by the condensation with (1R,2R)-1,2-diaminocyclohexane or (1R,2R)-2-aminocyclohexanol. The resulting diastereomers were separated by HPLC (with a nonchiral column) or silica gel column chromatography, and their absolute stereochemistry was determined by X-ray single-crystal structure analysis and CD (circular dichroism) spectra. Spectra of all diastereomers of the Ir(III) complexes are reported. Hydrolysis of the ester moieties of Δ- and Λ-forms of fac-10, fac-11, and fac-14 gave both enantiomers of the corresponding carboxylic acid derivatives in the optically pure forms, Δ-fac and Λ-fac-4, -6, and -13, respectively.
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Affiliation(s)
- Azusa Kanbe
- Faculty
of Pharmaceutical Science, Tokyo University
of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Kenta Yokoi
- Faculty
of Pharmaceutical Science, Tokyo University
of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Yasuyuki Yamada
- Department
of Chemistry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan
- Research
Center for Materials Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan
- JST,
PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Makoto Tsurui
- Graduate
School of Chemical Sciences and Engineering, Hokkaido University, N13W8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan
| | - Yuichi Kitagawa
- Faculty of
Engineering, Hokkaido University, Kita-13, Nishi-8, Kita-Ku, Sapporo, Hokkaido 060-8628, Japan
- Institute
for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Kita-21, Nishi-10, Kita-Ku, Sapporo, Hokkaido 001-0021, Japan
| | - Yasuchika Hasegawa
- Faculty of
Engineering, Hokkaido University, Kita-13, Nishi-8, Kita-Ku, Sapporo, Hokkaido 060-8628, Japan
- Institute
for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Kita-21, Nishi-10, Kita-Ku, Sapporo, Hokkaido 001-0021, Japan
| | - Daiji Ogata
- Faculty
of Science, Tokyo University of Science, 1-3 Kagurazaka,
Shinjuku-ku, Tokyo 162-8601, Japan
| | - Junpei Yuasa
- Faculty
of Science, Tokyo University of Science, 1-3 Kagurazaka,
Shinjuku-ku, Tokyo 162-8601, Japan
| | - Shin Aoki
- Faculty
of Pharmaceutical Science, Tokyo University
of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
- Research
Institute for Science and Technology (RIST), Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
- Research
Institute for Biomedical Science (RIBS), Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
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Jiang C, Yoon S, Nguyen YH, Teets TS. Modular Imine Chelates with Variable Anionic Donors Promote Red Phosphorescence in Cyclometalated Iridium Complexes. Inorg Chem 2023. [PMID: 37410956 DOI: 10.1021/acs.inorgchem.3c01770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/08/2023]
Abstract
The lack of red and deep-red emitting molecular phosphors with high photoluminescence quantum yields remains a significant fundamental challenge and has implications in optoelectronic technologies for color displays and other consumer products. In this work, we introduce a series of seven new red or deep-red emitting heteroleptic bis-cyclometalated iridium(III) complexes, supported by five different ancillary ligands (L^X) from the salicylaldimine and 2-picolinamide families. Previous work had shown that electron-rich anionic chelating "L^X" ligands can be effective in supporting efficient red phosphorescence, and the complementary approach described here, in addition to being synthetically simpler, offers two key advantages over the previous designs. First, the "L" and "X" functionalities can be independently tuned, providing excellent control over the electronic energy levels and excited-state dynamics. Second, these classes of L^X ligands can have beneficial impacts on the excited-state dynamics but do not significantly perturb the emission color profile. Cyclic voltammetry experiments show that the substituents on the L^X ligand impact the HOMO energy but have a minimal effect on the LUMO energy. Photoluminescence measurements reveal that all the compounds luminesce in the red or deep-red region as a function of the cyclometalating ligand and exhibit exceptionally high photoluminescence quantum yields (ΦPL), comparable or superior to the best-performing red-emitting iridium complexes.
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Affiliation(s)
- Chenggang Jiang
- University of Houston, Department of Chemistry, 3585 Cullen Blvd., Room 112, Houston, Texas 77204-5003, United States
| | - Sungwon Yoon
- University of Houston, Department of Chemistry, 3585 Cullen Blvd., Room 112, Houston, Texas 77204-5003, United States
| | - Yennie H Nguyen
- University of Houston, Department of Chemistry, 3585 Cullen Blvd., Room 112, Houston, Texas 77204-5003, United States
| | - Thomas S Teets
- University of Houston, Department of Chemistry, 3585 Cullen Blvd., Room 112, Houston, Texas 77204-5003, United States
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5
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6
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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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7
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Ikeshita M, Furukawa S, Ishikawa T, Matsudaira K, Imai Y, Tsuno T. Enhancement of Chiroptical Responses of trans-Bis[(β-iminomethyl)naphthoxy]platinum(II) Complexes with Distorted Square Planar Coordination Geometry. Chemistry 2022; 11:e202100277. [PMID: 35099127 PMCID: PMC8973265 DOI: 10.1002/open.202100277] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 12/28/2021] [Indexed: 12/17/2022]
Abstract
The relationship between the coordination geometry and photophysical properties of trans‐bis[(β‐iminomethyl)naphthoxy]platinum(II) was investigated both experimentally and theoretically. A series of platinum(II) complexes with differently substituted iminomethyl groups were synthesized, and their photophysical properties were examined in solution, in the crystalline, and in the PMMA film‐dispersed state, respectively (PMMA=poly(methyl methacrylate)). These complexes showed structure‐dependent emission spectra, in which the color of the luminescence in the crystalline state varied over a range of about 40 nm depending on the specific bowl‐shaped molecular structure. The chiral complexes with (R,R)‐ and (S,S)‐configurations were found to have structure‐dependent chiroptical properties both in solution and the PMMA film‐dispersed state such that the intensity of circular dichroism (CD) and circularly polarized luminescence (CPL) were enhanced with bulky cyclic substituents at the nitrogen atoms. A theoretical study using density functional theory (DFT) and time‐dependent (TD)‐DFT calculations revealed that the enhancement of chiroptical responses is due to the amplification of the magnetic dipole moment caused by the distortion of the square planar geometry.
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Affiliation(s)
- Masahiro Ikeshita
- Department of Applied Molecular Chemistry, College of Industrial Technology, Nihon University, 275-8575, Narashino, Chiba, Japan
| | - Sho Furukawa
- Department of Applied Molecular Chemistry, College of Industrial Technology, Nihon University, 275-8575, Narashino, Chiba, Japan
| | - Takahiro Ishikawa
- Department of Applied Molecular Chemistry, College of Industrial Technology, Nihon University, 275-8575, Narashino, Chiba, Japan
| | - Kana Matsudaira
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, 577-8502, Higashi, Osaka, Japan
| | - Yoshitane Imai
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, 577-8502, Higashi, Osaka, Japan
| | - Takashi Tsuno
- Department of Applied Molecular Chemistry, College of Industrial Technology, Nihon University, 275-8575, Narashino, Chiba, Japan
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8
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Hara K, Morimoto A, Matsudaira K, Suzuki S, Yagi S, Fujiki M, Imai Y. External Magnetic Field Driven, Ambidextrous Circularly Polarized Electroluminescence from Organic Light Emitting Diodes Containing Racemic Cyclometalated Iridium(III) Complexes. CHEMPHOTOCHEM 2022. [DOI: 10.1002/cptc.202100253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Kengo Hara
- Department of Applied Chemistry Faculty of Science and Engineering Kindai University 3-4-1 Kowakae, Higashi-Osaka Osaka 577–8502 Japan
| | - Ami Morimoto
- Department of Applied Chemistry Graduate School of Engineering Osaka Prefecture University 1-1 Gakuen-cho, Naka-ku, Sakai Osaka 599–8531 Japan
| | - Kana Matsudaira
- Department of Applied Chemistry Faculty of Science and Engineering Kindai University 3-4-1 Kowakae, Higashi-Osaka Osaka 577–8502 Japan
| | - Satoko Suzuki
- JASCO Corporation 2967-5 Ishikawa, Hachioji Tokyo 192–8537 Japan
| | - Shigeyuki Yagi
- Department of Applied Chemistry Graduate School of Engineering Osaka Prefecture University 1-1 Gakuen-cho, Naka-ku, Sakai Osaka 599–8531 Japan
| | - Michiya Fujiki
- Graduate School of Science and Technology Nara Institute of Science and Technology 8916-5 Takayama, Ikoma Nara 630–0192 Japan
| | - Yoshitane Imai
- Department of Applied Chemistry Faculty of Science and Engineering Kindai University 3-4-1 Kowakae, Higashi-Osaka Osaka 577–8502 Japan
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9
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Takaishi K, Nakatsuka Y, Asano H, Yamada Y, Ema T. Ruthenium Complexes Bearing Axially Chiral Bipyridyls: The Mismatched Diastereomer Showed Red Circularly Polarized Phosphorescence. Chemistry 2021; 28:e202104212. [PMID: 34837262 DOI: 10.1002/chem.202104212] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Indexed: 12/21/2022]
Abstract
RutheniumII complexes bearing three axially chiral bipyridyl ligands were synthesized as a new family of chiral complex dyes, and Δ-(S)- and Λ-(S)-diastereomers were obtained. The X-ray crystal structure analyses, spectroscopy, and DFT calculations suggested that all the bipyridyls maintained chirality in both the ground and excited states, and the Δ-(S)- and Λ-(S)-isomers are the matched (more relaxed) and mismatched (more constrained) pairs, respectively. The mismatched Λ-(S)-isomer exhibited red circularly polarized phosphorescence (CPP) both in solution and in the solid state. The solution state CPP is the most intense of ruthenium complexes, while the solid state CPP is the first example of them. It is supposed that, for the Λ-(S)-isomer, the six cumulative CH/π interactions suppress further distortion in the T1 state.
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Affiliation(s)
- Kazuto Takaishi
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University Tsushima, Okayama, 700-8530, Japan
| | - Yusuke Nakatsuka
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University Tsushima, Okayama, 700-8530, Japan
| | - Hitomi Asano
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University Tsushima, Okayama, 700-8530, Japan
| | - Yuya Yamada
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University Tsushima, Okayama, 700-8530, Japan
| | - Tadashi Ema
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University Tsushima, Okayama, 700-8530, Japan
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Kitahara M, Suzuki S, Matsudaira K, Yagi S, Fujiki M, Imai Y. Red‐Green‐Blue‐Yellow (RGBY) Magnetic Circularly Polarised Luminescence (MCPL) from Optically Inactive Phosphorescent Ir(III) Complexes. ChemistrySelect 2021. [DOI: 10.1002/slct.202103117] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Maho Kitahara
- Department of Applied Chemistry Faculty of Science and Engineering Kindai University 3-4-1 Kowakae Higashi Osaka 577-8502
| | - Seika Suzuki
- Department of Applied Chemistry Faculty of Science and Engineering Kindai University 3-4-1 Kowakae Higashi Osaka 577-8502
| | - Kana Matsudaira
- Department of Applied Chemistry Faculty of Science and Engineering Kindai University 3-4-1 Kowakae Higashi Osaka 577-8502
| | - Shigeyuki Yagi
- Department of Applied Chemistry Graduate School of Engineering Osaka Prefecture University, 1–1 Gakuen-cho, Naka-ku Sakai Osaka 599-8531 Japan
| | - Michiya Fujiki
- Graduate School of Science and Technology Nara Institute of Science and Technology, 8916–5 Takayama Ikoma Nara 630-0192 Japan
| | - Yoshitane Imai
- Department of Applied Chemistry Faculty of Science and Engineering Kindai University 3-4-1 Kowakae Higashi Osaka 577-8502
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11
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Takimoto K, Watanabe Y, Yoshida J, Sato H. Five-coordinate iridium(III) complex with ΔΛ chirality. Dalton Trans 2021; 50:13256-13263. [PMID: 34608912 DOI: 10.1039/d1dt01960k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The coordinatively unsaturated bis-chelated iridium(III) complex, [Ir(2-Bubzq)2Cl] (2-BubzqH = 2-butyl-benzo[h]quinoline), denoted as complex 1, was obtained by reacting iridium(III) trichloride with 2-BubzqH in a 1 : 2 molar ratio. The results were in contrast to the common view that a chlorine-bridged dimer, [Ir(L)2Cl]2 (L = bis-chelate ligand), is formed under the corresponding conditions. A single-crystal X-ray diffraction structural analysis revealed that complex 1 has a five-coordinate geometry with a distorted square pyramidal configuration. The optical resolution of complex 1 was measured chromatographically on a chiral column, yielding Δ and Λ as enantiomers. The resolved enantiomers were stable enough against racemization in CDCl3 as confirmed by the vibrational circular dichroism measurements. Complex 1 reacted with carbon monoxide (CO) to give [Ir(2-Bubzq)2(CO)Cl] and with 1,10-phenanthroline (phen) to give [Ir(2-Bubzq)2(phen)]Cl within a minute with its absolute configuration (ΔΛ chirality) maintained.
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Affiliation(s)
- Kazuyoshi Takimoto
- Graduate School of Science and Engineering, Ehime University, 2-5 Bunkyo-chou, Matsuyama, Ehime 790-8577, Japan.
| | - Yutaka Watanabe
- Graduate School of Science and Engineering, Ehime University, 2-5 Bunkyo-chou, Matsuyama, Ehime 790-8577, Japan.
| | - Jun Yoshida
- Department of Chemistry, College of Humanities & Sciences, Nihon University, 3-25-40 Sakurajosui, Setagaya-ku, Tokyo 156-8550, Japan
| | - Hisako Sato
- Graduate School of Science and Engineering, Ehime University, 2-5 Bunkyo-chou, Matsuyama, Ehime 790-8577, Japan.
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Braker EE, Mukthar NFM, Schley ND, Ung G. Substituent Effect on the Circularly Polarized Luminescence of
C
1
‐Symmetric Carbene‐Copper(I) Complexes. CHEMPHOTOCHEM 2021. [DOI: 10.1002/cptc.202100068] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Erin E. Braker
- Department of Chemistry University of Connecticut Storrs Connecticut 06269 USA
| | | | - Nathan D. Schley
- Department of Chemistry Vanderbilt University Nashville Tennessee 37235 USA
| | - Gaël Ung
- Department of Chemistry University of Connecticut Storrs Connecticut 06269 USA
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Matsudaira K, Izumoto A, Mimura Y, Kondo Y, Suzuki S, Yagi S, Fujiki M, Imai Y. Sign inversion of magnetic circularly polarized luminescence in Iridium(iii) complexes bearing achiral ligands. Phys Chem Chem Phys 2021; 23:5074-5078. [PMID: 33616128 DOI: 10.1039/d0cp05775d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Optically inactive, paramagnetic Ir(iii)(ppy)3 and Ir(iii)(ppy)2(acac) (ppy: 2-phenylpyridinate and acac: acetylacetonate) showed nearly mirror-symmetric magnetic circularly polarised luminescence (MCPL) spectra in dilute dichloromethane and dimethyl sulfoxide under N-up and S-up geometries in a 1.6-T magnetic field. However, the MCPL signs of Ir(iii)(ppy)3 and Ir(iii)(ppy)2(acac) under the same N-up (or S-up) Faraday geometry were opposite to each other when one ppy was replaced with an acac. This ligand exchange approach provides facile control of the MCPL sign, irrespective of the Faraday geometry.
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Affiliation(s)
- Kana Matsudaira
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan.
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14
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Enamullah M, Anwar Hossain M, Islam MK, Woschko D, Janiak C. Pseudotetrahedral copper(II)-complexes with enantiopure ( R or S)-2-(((aryl)ethylimino)ethyl)phenolate Schiff base ligands. Dalton Trans 2021; 50:9236-9249. [PMID: 34128030 DOI: 10.1039/d1dt01671g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Condensation of 2-hydroxy-benzophenone (HL') with (R or S)-(Ar)ethylamine yields the enantiopure Schiff bases (S or R)-2-((E)-1-(1-(Ar)ethylimino)ethyl)phenol {Ar = C6H5 (S- or R-HL1), p-CH3OC6H4 (S- or R-HL2)}. These Schiff bases react with copper(ii) acetate under reflux to give green microcrystals of bis[(R or S)-2-((E)-1-(1-(Ar)ethylimino)ethyl)phenolato-κ2N,O]-Λ/Δ-copper(ii), {Ar = C6H5 (Λ/Δ-Cu-R- or S-L1), p-CH3OC6H4 (Λ/Δ-Cu-R- or S-L2)} with induction of Λ/Δ-chirality at-metal. The presence of Schiff base ligands in the paramagnetic green microcrystals is confirmed by decomplexation reaction with NaCN via reduction of Cu(ii) to Cu(i) in DMSO-d6 solution. Crystallization attempts of the green microcrystalline Schiff-base Cu complexes provide deep-green block-shaped crystals of an about equal admixture of bis[2-oxo-benzophenonato-κ2O,O']-copper(ii), (CuL'2) and bis[2-(imino(phenyl)methyl)phenolato-κ2N,O]copper(ii), (CuL''2) via in situ hydrolysis of the coordinated Schiff base ligands back to 2-hydroxy-benzophenone (HL') and to 2-(imino(phenyl)methyl)phenol (HL''), which in-turn bind with the copper(ii) ion. Powder X-ray diffraction (PXRD) patterns of R-HL1 and Cu-R-L1 allowed their structure determinations using the program Expo-2014 followed by Rietveld refinement. The Cu structures refined to four-coordinated Λ/Δ-copper(ii)-complexes by the two phenolate-oxygen and two imine-nitrogen atoms from two Schiff base ligands in a pseudotetrahedral geometry. DFT optimized structures (at gas-phase) reveal the Δ-Cu-S-L1 or Λ-Cu-R-L1 diastereomer as slightly more stable than the corresponding Λ-Cu-S-L1 or Δ-Cu-R-L1 by ca. 7.60 kcal mol-1, resulting from diastereoselectively induced Λ vs. Δ-chirality at-metal. Electronic circular dichroism (ECD) spectra display mirror-image relationships and comparisons of experimental and simulated ECD spectra by TDDFT suggest an excess of the Δ-Cu-S-L1 or Λ-Cu-R-L1 diastereomer in solution. The cyclic voltammograms demonstrate two one electron charge transfer processes for Cu2+/Cu+ and Cu+/Cu0 couples in acetonitrile, respectively.
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Affiliation(s)
- Mohammed Enamullah
- Department of Chemistry, Jahangirnagar University, Dhaka-1342, Bangladesh.
| | | | | | - Dennis Woschko
- Institut für Anorganische Chemie und Strukturchemie, Heinrich-Heine-Universität, Universitätsstr. 1, D-40225 Düsseldorf, Germany.
| | - Christoph Janiak
- Institut für Anorganische Chemie und Strukturchemie, Heinrich-Heine-Universität, Universitätsstr. 1, D-40225 Düsseldorf, Germany.
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Doistau B, Jiménez JR, Piguet C. Beyond Chiral Organic (p-Block) Chromophores for Circularly Polarized Luminescence: The Success of d-Block and f-Block Chiral Complexes. Front Chem 2020; 8:555. [PMID: 32850617 PMCID: PMC7399180 DOI: 10.3389/fchem.2020.00555] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 05/29/2020] [Indexed: 12/16/2022] Open
Abstract
Chiral molecules are essential for the development of advanced technological applications in spintronic and photonic. The best systems should produce large circularly polarized luminescence (CPL) as estimated by their dissymmetry factor (g lum), which can reach the maximum values of -2 ≤ g lum ≤ 2 when either pure right- or left-handed polarized light is emitted after standard excitation. For matching this requirement, theoretical considerations indicate that optical transitions with large magnetic and weak electric transition dipole moments represent the holy grail of CPL. Because of their detrimental strong and allowed electric dipole transitions, popular chiral emissive organic molecules display generally moderate dissymmetry factors (10-5 ≤ g lum ≤ 10-3). However, recent efforts in this field show that g lum can be significantly enhanced when the chiral organic activators are part of chiral supramolecular assemblies or of liquid crystalline materials. At the other extreme, chiral EuIII- and SmIII-based complexes, which possess intra-shell parity-forbidden electric but allowed magnetic dipole transitions, have yielded the largest dissymmetry factor reported so far with g lum ~ 1.38. Consequently, 4f-based metal complexes with strong CPL are currently the best candidates for potential technological applications. They however suffer from the need for highly pure samples and from considerable production costs. In this context, chiral earth-abundant and cheap d-block metal complexes benefit from a renewed interest according that their CPL signal can be optimized despite the larger covalency displayed by d-block cations compared with 4f-block analogs. This essay thus aims at providing a minimum overview of the theoretical aspects rationalizing circularly polarized luminescence and their exploitation for the design of chiral emissive metal complexes with strong CPL. Beyond the corroboration that f-f transitions are ideal candidates for generating large dissymmetry factors, a special attention is focused on the recent attempts to use chiral CrIII-based complexes that reach values of g lum up to 0.2. This could pave the way for replacing high-cost rare earths with cheap transition metals for CPL applications.
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Affiliation(s)
- Benjamin Doistau
- Department of Inorganic and Analytical Chemistry, University of Geneva, Geneva, Switzerland
| | - Juan-Ramón Jiménez
- Department of Inorganic and Analytical Chemistry, University of Geneva, Geneva, Switzerland
| | - Claude Piguet
- Department of Inorganic and Analytical Chemistry, University of Geneva, Geneva, Switzerland
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16
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Ji S, Yang X, Chen X, Li A, Yan D, Xu H, Fei H. Structure-tuned membrane active Ir-complexed oligoarginine overcomes cancer cell drug resistance and triggers immune responses in mice. Chem Sci 2020; 11:9126-9133. [PMID: 34094193 PMCID: PMC8161536 DOI: 10.1039/d0sc03975f] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Accepted: 07/22/2020] [Indexed: 11/21/2022] Open
Abstract
The development of chemotherapy, an important cancer treatment modality, is hindered by the frequently found drug-resistance phenomenon. Meanwhile, researchers have been enthused lately by the synergistic use of chemotherapy with emerging immunotherapeutic treatments. In an effort to address both of the two unmet needs, reported herein is a study on a series of membrane active iridium(iii) complexed oligoarginine peptides with a new cell death mechanism capable of overcoming drug resistance as well as stimulating immunological responses. A systematic structure-activity relationship study elucidated the interdependent effects of three structural factors, i.e., hydrophobicity, topology and cationicity, on the regulation of the cytotoxicity of the Ir(iii)-oligoarginine peptides. With the most prominent toxicities, Ir-complexed octaarginines (R8) were found to display a progressive oncotic cell death featuring cell membrane-penetration and eruptive cytoplasmic content release. Consequently, this membrane-centric death mechanism showed promising potential in overcoming multiple chemical drug-resistance of cancer cells. More interestingly, the eruptive mode of cell death proved to be immunogenic by stimulating the dendritic cell maturation and inflammatory factor accumulation in mice tumours. Taking these mechanisms together, this work demonstrates that membrane active compounds may become the next generation chemotherapeutics because of their combined advantages.
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Affiliation(s)
- Shuangshuang Ji
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China Hefei 230026 PR China
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences Suzhou 215123 PR China
| | - Xiuzhu Yang
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences Suzhou 215123 PR China
| | - Xiaolong Chen
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China Hefei 230026 PR China
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences Suzhou 215123 PR China
| | - Ang Li
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China Hefei 230026 PR China
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences Suzhou 215123 PR China
| | - Doudou Yan
- Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College Beijing 100005 PR China
| | - Haiyan Xu
- Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College Beijing 100005 PR China
| | - Hao Fei
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China Hefei 230026 PR China
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences Suzhou 215123 PR China
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17
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Ayers KM, Schley ND, Ung G. Circularly Polarized Luminescence from Enantiopure C2-Symmetrical Tetrakis(2-pyridylmethyl)-1,2-diaminocyclohexane Lanthanide Complexes. Inorg Chem 2020; 59:7657-7665. [DOI: 10.1021/acs.inorgchem.0c00628] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Kaitlynn M. Ayers
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Nathan D. Schley
- Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37235, United States
| | - Gaël Ung
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269, United States
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18
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Zhao T, Han J, Qin X, Zhou M, Duan P. Amplifying Dissymmetry Factor of Upconverted Circularly Polarized Luminescence through Chirality-Induced Spin Polarization in the Photon Upconversion Process. J Phys Chem Lett 2020; 11:311-317. [PMID: 31854190 DOI: 10.1021/acs.jpclett.9b03408] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
A general phenomenon about upconverted circularly polarized luminescence (UC-CPL) based on triplet-triplet annihilation (TTA) was realized in an ambient environment by coupling three kinds of chiral acceptors with corresponding achiral sensitizers. All of the dissymmetry factors of UC-CPL exhibited significant amplification compared with the prompt CPL of the used chiral acceptors. Chirality-induced spin polarization during the TTA-UC process was in charge of the amplified dissymmetry factor of UC-CPL. Chirality-induced spin-polarized triplet excitons will suppress the TTA efficiency because the spin-polarized electrons go against the electron exchange within triplet excitons. However, the chirality-induced spin-polarized singlet excitons resulting from the TTA process can be promoted, enabling a large dissymmetry factor of UC-CPL.
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Affiliation(s)
- Tonghan Zhao
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory of Nanosystem and Hierarchical Fabrication , National Center for Nanoscience and Technology (NCNST) , No. 11, ZhongGuanCun BeiYiTiao , Beijing 100190 , People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Jianlei Han
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory of Nanosystem and Hierarchical Fabrication , National Center for Nanoscience and Technology (NCNST) , No. 11, ZhongGuanCun BeiYiTiao , Beijing 100190 , People's Republic of China
| | - Xujin Qin
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory of Nanosystem and Hierarchical Fabrication , National Center for Nanoscience and Technology (NCNST) , No. 11, ZhongGuanCun BeiYiTiao , Beijing 100190 , People's Republic of China
| | - Minghao Zhou
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory of Nanosystem and Hierarchical Fabrication , National Center for Nanoscience and Technology (NCNST) , No. 11, ZhongGuanCun BeiYiTiao , Beijing 100190 , People's Republic of China
| | - Pengfei Duan
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory of Nanosystem and Hierarchical Fabrication , National Center for Nanoscience and Technology (NCNST) , No. 11, ZhongGuanCun BeiYiTiao , Beijing 100190 , People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
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19
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Deng M, Mukthar NFM, Schley ND, Ung G. Yellow Circularly Polarized Luminescence from
C
1
‐Symmetrical Copper(I) Complexes. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201913672] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Min Deng
- Department of Chemistry University of Connecticut Storrs CT 06269 USA
| | | | - Nathan D. Schley
- Department of Chemistry Vanderbilt University Nashville TN 37235 USA
| | - Gaël Ung
- Department of Chemistry University of Connecticut Storrs CT 06269 USA
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20
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Deng M, Mukthar NFM, Schley ND, Ung G. Yellow Circularly Polarized Luminescence from
C
1
‐Symmetrical Copper(I) Complexes. Angew Chem Int Ed Engl 2019; 59:1228-1231. [DOI: 10.1002/anie.201913672] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Revised: 11/04/2019] [Indexed: 12/18/2022]
Affiliation(s)
- Min Deng
- Department of Chemistry University of Connecticut Storrs CT 06269 USA
| | | | - Nathan D. Schley
- Department of Chemistry Vanderbilt University Nashville TN 37235 USA
| | - Gaël Ung
- Department of Chemistry University of Connecticut Storrs CT 06269 USA
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21
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Dumitru F, van der Lee A, Barboiu M. Chiral superstructures from homochiral Zn 2+ , Co 2+ , Fe 2+ -2,6-bis (aryl ethylimine)pyridine complexes. Chirality 2019; 31:763-775. [PMID: 31392782 DOI: 10.1002/chir.23115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 06/15/2019] [Accepted: 07/06/2019] [Indexed: 11/07/2022]
Abstract
We report the hierarchical supramolecular organization of metallosupramolecular homochiral complexes 1-Λ-(S,S,S,S)-M2+ /1-∆-(R,R,R,R)-M2+ and 2- Λ-(S,S,S,S)-M2+ /2-∆- (R,R,R,R)-M2+ of M2+ = Co2+ , Fe2+ , Zn2+ metal ions with chiral pseudo-terpyridine-type ligands: 1-(S,S) or 1-(R,R) = 2,6-bis (naphthyl ethylimine)pyridine and 2-(S,S) or 2-(R,R) = 2,6-bis (phenyl-ethylimine)pyridine. Circular dichroism measurements in solution were used to confirm the enantiomeric nature of all twelve complexes. For crystal structures of 1- Λ- (S,S,S,S)-M2+ or 1-∆- (R,R,R,R)-M2+ complexes, absolute configurations {∆ (or P), Λ (or M)} were confirmed by refinement of the Flack parameter x: -0.007 ≤ x ≤ 0.11 for the single crystals of 1-Λ-(S,S,S,S)-M2+ /1-∆- (R,R,R,R)-M2+ , 2- Λ- (S,S,S,S)-Fe2+ , and 2-∆- (R,R,R,R)-Co2+ .
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Affiliation(s)
- Florina Dumitru
- Institut Européen des Membranes, UMR-CNRS 5635, Université Montpellier, ENSCM Place eugene Bataillon CC047, Montpellier, France.,Faculty of Applied Chemistry and Materials Science, Department of Inorganic Chemistry, Physical Chemistry and Electrochemistry, University Politehnica of Bucharest, Bucharest, Romania
| | - Arie van der Lee
- Institut Européen des Membranes, UMR-CNRS 5635, Université Montpellier, ENSCM Place eugene Bataillon CC047, Montpellier, France
| | - Mihail Barboiu
- Institut Européen des Membranes, UMR-CNRS 5635, Université Montpellier, ENSCM Place eugene Bataillon CC047, Montpellier, France
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22
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Macé A, Hellou N, Hammoud J, Martin C, Gauthier ES, Favereau L, Roisnel T, Caytan E, Nasser G, Vanthuyne N, Williams JAG, Berrée F, Carboni B, Crassous J. An Enantiopure Cyclometallated Iridium Complex Displaying Long‐Lived Phosphorescence both in Solution and in the Solid State. Helv Chim Acta 2019. [DOI: 10.1002/hlca.201900044] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Aurélie Macé
- Univ Rennes, CNRSISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226 FR-35000 Rennes France
| | - Nora Hellou
- Univ Rennes, CNRSISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226 FR-35000 Rennes France
| | - Joanna Hammoud
- Univ Rennes, CNRSISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226 FR-35000 Rennes France
| | - Clothilde Martin
- Univ Rennes, CNRSISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226 FR-35000 Rennes France
| | - Etienne S. Gauthier
- Univ Rennes, CNRSISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226 FR-35000 Rennes France
| | - Ludovic Favereau
- Univ Rennes, CNRSISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226 FR-35000 Rennes France
| | - Thierry Roisnel
- Univ Rennes, CNRSISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226 FR-35000 Rennes France
| | - Elsa Caytan
- Univ Rennes, CNRSISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226 FR-35000 Rennes France
| | - Ghassan Nasser
- Inorganic and Organometallic Coordination Chemistry Laboratory (LCIO)Lebanese University, Rafic Hariri University Campus, Faculty of Sciences I Hadath Lebanon
| | - Nicolas Vanthuyne
- Aix Marseille UniversityCNRS, Centrale Marseille, iSm2 FR–13284 Marseille France
| | | | - Fabienne Berrée
- Univ Rennes, CNRSISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226 FR-35000 Rennes France
| | - Bertrand Carboni
- Univ Rennes, CNRSISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226 FR-35000 Rennes France
| | - Jeanne Crassous
- Univ Rennes, CNRSISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226 FR-35000 Rennes France
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23
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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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24
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Manguin R, Pichon D, Tarrieu R, Vives T, Roisnel T, Dorcet V, Crévisy C, Miqueu K, Favereau L, Crassous J, Mauduit M, Baslé O. A kinetic resolution strategy for the synthesis of chiral octahedral NHC–iridium(iii) catalysts. Chem Commun (Camb) 2019; 55:6058-6061. [DOI: 10.1039/c9cc02434d] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The transmetalation reaction of a chiral-bidentate NHC–silver complex to racemic [lr(μ-Cl)(ppy)2]2 operates with kinetic resolution leading to chiral octahedral NHC–iridium(iii) complexes and enantio-enriched bis-cyclometalated iridium(iii) complexes.
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Affiliation(s)
- Romane Manguin
- Univ. Rennes
- Ecole Nationale Supérieure de Chimie de Rennes
- CNRS, ISCR – UMR 6226
- F-35000 Rennes
- France
| | - Delphine Pichon
- Univ. Rennes
- Ecole Nationale Supérieure de Chimie de Rennes
- CNRS, ISCR – UMR 6226
- F-35000 Rennes
- France
| | - Robert Tarrieu
- Univ. Rennes
- Ecole Nationale Supérieure de Chimie de Rennes
- CNRS, ISCR – UMR 6226
- F-35000 Rennes
- France
| | - Thomas Vives
- Univ. Rennes
- Ecole Nationale Supérieure de Chimie de Rennes
- CNRS, ISCR – UMR 6226
- F-35000 Rennes
- France
| | | | | | - Christophe Crévisy
- Univ. Rennes
- Ecole Nationale Supérieure de Chimie de Rennes
- CNRS, ISCR – UMR 6226
- F-35000 Rennes
- France
| | - Karinne Miqueu
- CNRS/Univ. Pau & Pays de l'Adour
- Institut des Sciences Analytiques et de Physico-Chimie pour l’environnement et les Matériaux
- IPREM
- UMR 5254
- Pau
| | | | | | - Marc Mauduit
- Univ. Rennes
- Ecole Nationale Supérieure de Chimie de Rennes
- CNRS, ISCR – UMR 6226
- F-35000 Rennes
- France
| | - Olivier Baslé
- Univ. Rennes
- Ecole Nationale Supérieure de Chimie de Rennes
- CNRS, ISCR – UMR 6226
- F-35000 Rennes
- France
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25
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Li LP, Peng HL, Wei LQ, Ye BH. Diastereoselective Photooxidation and Reduction of Chiral Iridium(III) Complexes. Inorg Chem 2018; 58:785-793. [PMID: 30550266 DOI: 10.1021/acs.inorgchem.8b02934] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A diastereoselective photooxidation of α-amino acid (AA) complexes into imino acid complexes using a chiral iridium(III) complex as a photosensitizer and stereo-controller under visible light irradiation and oxygen was developed. It was found that the oxidative rate of Δ-[Ir(pq)2( L-AA)] (pq is 2-phenylquinoline) diastereomer is significantly higher than that of the corresponding Δ-[Ir(pq)2( D-AA)] diastereomer, providing a new protocol for kinetic resolution of AAs via a nonenzymatic pathway. Moreover, the thermodynamic controlled strategy offered a complemental method for the diastereoselective hydrogenation of imine bonds using NaBH4 as a reductant under the chiral Ir(III) complex as a stereo-controller. The combination of diastereoselective photooxidation and reduction processes results in a new protocol for deracemization of α-amino acids under mild conditions. Mechanism study strongly indicates that singlet oxygen is a key participant in the reaction and the α-C-H bond cleavage of AAs is the rate-determining step.
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Affiliation(s)
- Li-Ping Li
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry , Sun Yat-sen University , Guangzhou 510275 , China
| | - He-Long Peng
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry , Sun Yat-sen University , Guangzhou 510275 , China
| | - Lian-Qiang Wei
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry , Sun Yat-sen University , Guangzhou 510275 , China
| | - Bao-Hui Ye
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry , Sun Yat-sen University , Guangzhou 510275 , China
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26
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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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27
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Congrave DG, Batsanov AS, Du M, Liu Y, Zhu D, Bryce MR. Intramolecular π–π Interactions with a Chiral Auxiliary Ligand Control Diastereoselectivity in a Cyclometalated Ir(III) Complex. Inorg Chem 2018; 57:12836-12849. [DOI: 10.1021/acs.inorgchem.8b02034] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Daniel G. Congrave
- 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
| | - Mingxu Du
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, People’s Republic of China
| | - Yu Liu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, People’s Republic of China
| | - Dongxia Zhu
- Key Laboratory of Nanobiosensing and Nanobioanalysis at Universities of Jilin Province, Department of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun, Jilin 130024, People’s Republic of China
| | - Martin R. Bryce
- Department of Chemistry, Durham University, South Road, Durham DH1 3LE, U.K
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28
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Yan ZP, Luo XF, Liao K, Lin ZX, Wu ZG, Zhou YH, Zheng YX. The Taiji and Eight Trigrams chemistry philosophy of chiral iridium(iii) complexes with triplex stereogenic centers. Dalton Trans 2018; 47:4045-4048. [DOI: 10.1039/c8dt00264a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Eight Ir(iii) isomers with triplex stereogenic centers are corresponding to the old Chinese philosophy Taiji and Eight Trigrams. The ECD and CPL spectra of four pair isomers show perfect mirror-images with a glum factor around 0.003.
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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
| | - Xu-Feng Luo
- 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
| | - Zi-Xuan Lin
- 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
| | - Zheng-Guang Wu
- 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
| | - Yong-Hui Zhou
- Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control
- College of Environmental Science and Engineering
- Nanjing University of Information Science & Technology
- Nanjing 210044
| | - 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
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29
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Takimoto K, Tamura K, Watanabe Y, Yamagishi A, Sato H. Microscopic chiral pockets in a tris(chelated) iridium(iii) complex as sites for dynamic enantioselective quenching. NEW J CHEM 2018. [DOI: 10.1039/c7nj04688j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
A microscopic pocket surrounded by bulky ligands in Ir(iii) acted as a site discriminating the chirality of an approaching molecule.
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Affiliation(s)
- Kazuyoshi Takimoto
- Department of Chemistry
- Graduate School of Science and Engineering
- Ehime University
- Matsuyama 790-8577
- Japan
| | - Kenji Tamura
- National Institute for Materials Science
- Tsukuba 305-0044
- Japan
| | - Yutaka Watanabe
- Department of Chemistry
- Graduate School of Science and Engineering
- Ehime University
- Matsuyama 790-8577
- Japan
| | | | - Hisako Sato
- Department of Chemistry
- Graduate School of Science and Engineering
- Ehime University
- Matsuyama 790-8577
- Japan
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30
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Li LP, Yao SY, Ou YL, Wei LQ, Ye BH. Diastereoselective Synthesis and Photophysical Properties of Bis-Cyclometalated Ir(III) Stereoisomers with Dual Stereocenters. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00406] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Li-Ping Li
- MOE Key Laboratory of Bioinorganic
and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, People’s Republic of China
| | - Su-Yang Yao
- MOE Key Laboratory of Bioinorganic
and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, People’s Republic of China
| | - Yan-Ling Ou
- MOE Key Laboratory of Bioinorganic
and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, People’s Republic of China
| | - Lian-Qiang Wei
- MOE Key Laboratory of Bioinorganic
and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, People’s Republic of China
| | - Bao-Hui Ye
- MOE Key Laboratory of Bioinorganic
and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, People’s Republic of China
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31
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Li LP, Ye BH. Discrimination and Enantiomeric Excess Determination of Chiral Primary Amines Based on a Chiral-at-Metal Ir(III) Complex Using NMR Spectroscopy. Inorg Chem 2017; 56:10717-10723. [DOI: 10.1021/acs.inorgchem.7b01681] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Li-Ping Li
- MOE Key Laboratory of Bioinorganic and
Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China
| | - Bao-Hui Ye
- MOE Key Laboratory of Bioinorganic and
Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China
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32
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Hellou N, Srebro‐Hooper M, Favereau L, Zinna F, Caytan E, Toupet L, Dorcet V, Jean M, Vanthuyne N, Williams JAG, Di Bari L, Autschbach J, Crassous J. Enantiopure Cycloiridiated Complexes Bearing a Pentahelicenic N‐Heterocyclic Carbene and Displaying Long‐Lived Circularly Polarized Phosphorescence. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201704263] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Nora Hellou
- Institut des Sciences Chimiques de Rennes UMR 6226, Institut de Physique de Rennes, UMR 6251 CNRS Université de Rennes 1 Campus de Beaulieu 35042 Rennes Cedex France
| | | | - Ludovic Favereau
- Institut des Sciences Chimiques de Rennes UMR 6226, Institut de Physique de Rennes, UMR 6251 CNRS Université de Rennes 1 Campus de Beaulieu 35042 Rennes Cedex France
| | - Francesco Zinna
- Dipartimento di Chimica e Chimica Industriale University of Pisa via Moruzzi 13 56124 Pisa Italy
- Present address: Université de Genève Département de Chimie Organique Quai Ernest-Ansermet 30 1211 Genève 4 Switzerland
| | - Elsa Caytan
- Institut des Sciences Chimiques de Rennes UMR 6226, Institut de Physique de Rennes, UMR 6251 CNRS Université de Rennes 1 Campus de Beaulieu 35042 Rennes Cedex France
| | - Loïc Toupet
- Institut des Sciences Chimiques de Rennes UMR 6226, Institut de Physique de Rennes, UMR 6251 CNRS Université de Rennes 1 Campus de Beaulieu 35042 Rennes Cedex France
| | - Vincent Dorcet
- Institut des Sciences Chimiques de Rennes UMR 6226, Institut de Physique de Rennes, UMR 6251 CNRS Université de Rennes 1 Campus de Beaulieu 35042 Rennes Cedex France
| | - Marion Jean
- Aix Marseille University, CNRS, Centrale Marseille, iSm2 Marseille France
| | - Nicolas Vanthuyne
- Aix Marseille University, CNRS, Centrale Marseille, iSm2 Marseille France
| | | | - Lorenzo Di Bari
- Dipartimento di Chimica e Chimica Industriale University of Pisa via Moruzzi 13 56124 Pisa Italy
| | - Jochen Autschbach
- Department of Chemistry University at Buffalo, State University of New York Buffalo NY 14260 USA
| | - Jeanne Crassous
- Institut des Sciences Chimiques de Rennes UMR 6226, Institut de Physique de Rennes, UMR 6251 CNRS Université de Rennes 1 Campus de Beaulieu 35042 Rennes Cedex France
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33
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Hellou N, Srebro‐Hooper M, Favereau L, Zinna F, Caytan E, Toupet L, Dorcet V, Jean M, Vanthuyne N, Williams JAG, Di Bari L, Autschbach J, Crassous J. Enantiopure Cycloiridiated Complexes Bearing a Pentahelicenic N‐Heterocyclic Carbene and Displaying Long‐Lived Circularly Polarized Phosphorescence. Angew Chem Int Ed Engl 2017; 56:8236-8239. [DOI: 10.1002/anie.201704263] [Citation(s) in RCA: 120] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Nora Hellou
- Institut des Sciences Chimiques de Rennes UMR 6226, Institut de Physique de Rennes, UMR 6251 CNRS Université de Rennes 1 Campus de Beaulieu 35042 Rennes Cedex France
| | | | - Ludovic Favereau
- Institut des Sciences Chimiques de Rennes UMR 6226, Institut de Physique de Rennes, UMR 6251 CNRS Université de Rennes 1 Campus de Beaulieu 35042 Rennes Cedex France
| | - Francesco Zinna
- Dipartimento di Chimica e Chimica Industriale University of Pisa via Moruzzi 13 56124 Pisa Italy
- Present address: Université de Genève Département de Chimie Organique Quai Ernest-Ansermet 30 1211 Genève 4 Switzerland
| | - Elsa Caytan
- Institut des Sciences Chimiques de Rennes UMR 6226, Institut de Physique de Rennes, UMR 6251 CNRS Université de Rennes 1 Campus de Beaulieu 35042 Rennes Cedex France
| | - Loïc Toupet
- Institut des Sciences Chimiques de Rennes UMR 6226, Institut de Physique de Rennes, UMR 6251 CNRS Université de Rennes 1 Campus de Beaulieu 35042 Rennes Cedex France
| | - Vincent Dorcet
- Institut des Sciences Chimiques de Rennes UMR 6226, Institut de Physique de Rennes, UMR 6251 CNRS Université de Rennes 1 Campus de Beaulieu 35042 Rennes Cedex France
| | - Marion Jean
- Aix Marseille University, CNRS, Centrale Marseille, iSm2 Marseille France
| | - Nicolas Vanthuyne
- Aix Marseille University, CNRS, Centrale Marseille, iSm2 Marseille France
| | | | - Lorenzo Di Bari
- Dipartimento di Chimica e Chimica Industriale University of Pisa via Moruzzi 13 56124 Pisa Italy
| | - Jochen Autschbach
- Department of Chemistry University at Buffalo, State University of New York Buffalo NY 14260 USA
| | - Jeanne Crassous
- Institut des Sciences Chimiques de Rennes UMR 6226, Institut de Physique de Rennes, UMR 6251 CNRS Université de Rennes 1 Campus de Beaulieu 35042 Rennes Cedex France
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34
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Wang Y, Li X, Li F, Sun WY, Zhu C, Cheng Y. Strong circularly polarized luminescence induced from chiral supramolecular assembly of helical nanorods. Chem Commun (Camb) 2017. [DOI: 10.1039/c7cc04363e] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Chiral supramolecular assemblies (BNS–BPP) can exhibit circularly polarized luminescence (CPL) via electrostatic and π–π stacking interactions.
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Affiliation(s)
- Yuxiang Wang
- Key Lab of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- P. R. China
| | - Xiaojing Li
- Key Lab of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- P. R. China
| | - Fei Li
- Key Lab of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- P. R. China
| | - Wei-Yin Sun
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- P. R. China
| | - Chengjian Zhu
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- P. R. China
| | - Yixiang Cheng
- Key Lab of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- P. R. China
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35
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Takimoto K, Watanabe Y, Mori S, Sato H. Vibrational circular dichroism and single crystal X-Ray diffraction analyses of [Ir(bzq)2(phen)]+ (bzq = benzo[h]quinoline; phen = 1,10-phenanthroline): absolute configuration and role of CH–π interaction in molecular packing. Dalton Trans 2017; 46:4397-4402. [DOI: 10.1039/c7dt00606c] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The absolute configuration of a cationic iridium(iii) complex was determined in solution and solid by vibrational circular dichroism and X-ray diffraction analyses.
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Affiliation(s)
- Kazuyoshi Takimoto
- Department of Chemistry
- Graduate School of Science and Engineering
- Ehime University
- Matsuyama 790-8577
- Japan
| | - Yutaka Watanabe
- Department of Chemistry
- Graduate School of Science and Engineering
- Ehime University
- Matsuyama 790-8577
- Japan
| | - Shigeki Mori
- Advanced Research Support Center
- Ehime University
- Matsuyama 790-8577
- Japan
| | - Hisako Sato
- Department of Chemistry
- Graduate School of Science and Engineering
- Ehime University
- Matsuyama 790-8577
- Japan
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