1
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Katsumi S, Kugai Y, Louis M, Morimoto T, Yamada M, Maisonneuve S, Goto C, Métivier R, Kawai T, Allain C. C 3-Symmetric Luminescent Diketone with Amido-Linkage as a Polymorphic Fluorescence Emitter. Chemistry 2024; 30:e202304278. [PMID: 38372462 DOI: 10.1002/chem.202304278] [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: 12/21/2023] [Revised: 02/14/2024] [Accepted: 02/16/2024] [Indexed: 02/20/2024]
Abstract
The study introduces a novel C3-symmetric β-diketone compound, BTA-D3, and its monomeric counterpart, D, with a focus on their synthetic procedure, photophysical properties and aggregation behavior. Both compounds exhibit characteristic absorption and weak fluorescence in solution, with BTA-D3 displaying higher absorption coefficients due to its larger number of diketone units. Density Functional Theory (DFT) calculations suggest increased co-planarity of diketone groups in BTA-D3. A significant finding is the Aggregation-Induced Emission (AIE) property of BTA-D3, as its fluorescence intensity increases dramatically when exposed to specific solvent ratios. The AIE behavior is attributed to intermolecular excitonic interaction between BTA-D3 molecules in self-organized aggregates. We also studied fluorescence anisotropy of BTA-D3 and D. Despite its larger size, BTA-D3 showed reduced anisotropy values because of efficient intramolecular energy migration among three diketone units. Furthermore, BTA-D3 demonstrates unique polymorphism, yielding different emission colors and structures depending on the solvent used. A unique approach is presented for promoting the growth of self-organized aggregate structures via solvent evaporation, leading to distinct fluorescence properties. This research contributes to the understanding of C3-symmetric structural molecules and provides insights into strategies for controlling molecular alignment to achieve diverse fluorescence coloration in molecular materials.
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Affiliation(s)
- Shiho Katsumi
- Graduate School of Science and Technology, Nara Institute of Science and Technology, NAIST, Takayama 8916-5, 630-0192, Ikoma, Nara, Japan
- Université Paris-Saclay ENS Paris-Saclay, CNRS, PPSM, 91190, Gif-sur-Yvette, France
| | - Yusuke Kugai
- Graduate School of Science and Technology, Nara Institute of Science and Technology, NAIST, Takayama 8916-5, 630-0192, Ikoma, Nara, Japan
| | - Marine Louis
- Graduate School of Science and Technology, Nara Institute of Science and Technology, NAIST, Takayama 8916-5, 630-0192, Ikoma, Nara, Japan
| | - Tsumoru Morimoto
- Graduate School of Science and Technology, Nara Institute of Science and Technology, NAIST, Takayama 8916-5, 630-0192, Ikoma, Nara, Japan
| | - Mihoko Yamada
- Graduate School of Science and Technology, Nara Institute of Science and Technology, NAIST, Takayama 8916-5, 630-0192, Ikoma, Nara, Japan
| | - Stéphane Maisonneuve
- Université Paris-Saclay ENS Paris-Saclay, CNRS, PPSM, 91190, Gif-sur-Yvette, France
| | - Chigusa Goto
- Graduate School of Science and Technology, Nara Institute of Science and Technology, NAIST, Takayama 8916-5, 630-0192, Ikoma, Nara, Japan
| | - Rémi Métivier
- Université Paris-Saclay ENS Paris-Saclay, CNRS, PPSM, 91190, Gif-sur-Yvette, France
| | - Tsuyoshi Kawai
- Graduate School of Science and Technology, Nara Institute of Science and Technology, NAIST, Takayama 8916-5, 630-0192, Ikoma, Nara, Japan
| | - Clémence Allain
- Université Paris-Saclay ENS Paris-Saclay, CNRS, PPSM, 91190, Gif-sur-Yvette, France
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2
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Liu J, Zhao Y, Zhang Z, Li M, Song W, Li W, Miao Z. Circularly polarized blue fluorescence based on chiral heteroleptic six-coordinate bis-pyrazolonate-Zn 2+ complexes. Dalton Trans 2024; 53:6625-6630. [PMID: 38517688 DOI: 10.1039/d4dt00086b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/24/2024]
Abstract
Applying molecular design to chiral organo-Zn2+ complexes, a new pair of chiral heteroleptic bis-pyrazolonate-Zn2+ enantiomers [Zn(PMBP)2(1R,2R-Chxn)] (R,R-Zn2+; HPMBP = 1-phenyl-3-methyl-4-benzoyl-5-pyrazolone and 1R,2R-Chxn = (1R,2R)-cyclohexane-1,2-diamine) and [Zn(PMBP)2(1S,2S-Chxn)] (S,S-Zn2+; 1S,2S-Chxn = (1S,2S)-cyclohexane-1,2-diamine) have been synthesized and characterized in terms of photophysical and thermodynamic properties. In addition to a small Flack parameter (0.05(3)) associated with the solid-state elucidation of S,S-Zn2+, the circular dichroism (CD) and circularly polarized light (CPL) spectra for the chiral Zn2+ enantiomers show perfect mirror symmetry, establishing that the enantiopure 1,2-diamines successfully induce the optical isomerism of R,R-Zn2+ and S,S-Zn2+. As a result of the combined strong chiral induction capability of chiral 1,2-diamines and excellent photophysical properties of the pyrazolone ligand (PMBP)-, the two Zn2+ enantiomers exhibit high-quality pure blue fluorescence (ΦPL = 9-10%) and significant CPL activity (|glum| = 0.0065-0.0068). The heteroleptic strategy adopted in this study offers a new route to develop high-performance chiroptical luminophores.
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Affiliation(s)
- Jiaxiang Liu
- Xi'an Key Laboratory of Advanced Photo-Electronics Materials and Energy Conversion Device, Technological Institute of Materials & Energy Science (TIMES), Xijing University, Xi'an 710123, P. R. China
| | - Yuzhen Zhao
- Xi'an Key Laboratory of Advanced Photo-Electronics Materials and Energy Conversion Device, Technological Institute of Materials & Energy Science (TIMES), Xijing University, Xi'an 710123, P. R. China
| | - Zhe Zhang
- Xi'an Key Laboratory of Advanced Photo-Electronics Materials and Energy Conversion Device, Technological Institute of Materials & Energy Science (TIMES), Xijing University, Xi'an 710123, P. R. China
| | - Manni Li
- Xi'an Key Laboratory of Advanced Photo-Electronics Materials and Energy Conversion Device, Technological Institute of Materials & Energy Science (TIMES), Xijing University, Xi'an 710123, P. R. China
| | - Wenqi Song
- Xi'an Key Laboratory of Advanced Photo-Electronics Materials and Energy Conversion Device, Technological Institute of Materials & Energy Science (TIMES), Xijing University, Xi'an 710123, P. R. China
| | - Wentao Li
- College of Big Data and Information Engineering, Institute of Advanced Optoelectronic Materials and Technology, Guizhou University, Guiyang 550025, P. R. China.
| | - Zongcheng Miao
- School of Artificial Intelligence, Optics and Electronics (iOPEN), Northwestern Polytechnical University, Xi'an 710072, P. R. China.
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3
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Grasser M, Le Guennic B. Ab initio investigations of circularly polarised luminescence in Samarium(III)-based complexes. Phys Chem Chem Phys 2024; 26:7203-7210. [PMID: 38349763 DOI: 10.1039/d3cp05695c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2024]
Abstract
The present study aims to gain insight into the circularly polarised luminescence (CPL) of lanthanide complexes through the angle of one of their elements, namely Samarium. The simulation of luminescent properties of Samarium(III) complexes remains a challenge for computational chemistry, considering the multiconfigurational character of the electronic structure, the importance of the spin-orbit coupling and the fact that its emissive level is high in energy and preceded by numerous states of various multiplicity. Herein, a methodology based on CASSCF/RASSI-SO calculations is exposed and applied to simulate the CPL properties of two different Samarium(III) complexes, presenting either a rigid or a flexible architecture around the centre ion.
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Affiliation(s)
- Maxime Grasser
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) UMR 6226, F-35000 Rennes, France.
| | - Boris Le Guennic
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) UMR 6226, F-35000 Rennes, France.
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4
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Du X, Zhang Z, Gao C, Li F, Li XL. Two pairs of chiral Yb III enantiomers presenting distinct NIR luminescence and circularly polarized luminescence performances with giant differences in second-harmonic generation responses. Dalton Trans 2023; 52:17758-17766. [PMID: 37974451 DOI: 10.1039/d3dt03324d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2023]
Abstract
By introducing enantiomerically pure mono-bidentate N-donor ligands (LR/LS) into Yb(btfa)3(H2O)2 and Yb(dbm)3(H2O), respectively, two pairs of chiral YbIII enantiomers, namely Yb(btfa)3LR/Yb(btfa)3LS (D-1/L-1) and [Yb(dbm)3LR]·[Yb(dbm)3(C2H5OH)]/[Yb(dbm)3LS]·[Yb(dbm)3(C2H5OH)] (D-2/L-2) were isolated, where btfa- = 3-benzoyl-1,1,1-trifluoroacetonate, dbm- = dibenzoylmethanate, and LR/LS = (-)/(+)-4,5-pinenepyridyl-2-pyrazine. D-1/L-1 possess mononuclear structures in which the YbIII ions are eight-coordinated, while D-2/L-2 show cocrystal structures containing Yb(dbm)3(LR/LS) and Yb(dbm)3(C2H5OH) moieties in which the two YbIII ions are eight and seven-coordinated, respectively. They not only feature different molecular structures but also present distinct linear and nonlinear optical performances. Chiral mononuclear D-1 has better near infrared photo-luminescence (NIR-PL) and circularly polarized luminescence (CPL) performances than chiral cocrystal D-2. More remarkably, D-1/L-1 show large second-harmonic generation (SHG) responses (up to 1.25/1.28 × KDP) 18/16 times those of D-2/L-2 (0.07/0.08 × KDP). In addition, D-2/L-2 represent the first examples of lanthanide cocrystal complexes with NIR-PL, NIR-CPL and SHG properties.
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Affiliation(s)
- Xiaodi Du
- College of Chemistry and Chemical Engineering, Zhoukou Normal University, Zhoukou 466001, PR China.
| | - Zhiqiang Zhang
- Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry, Zhengzhou 450002, PR China.
| | - Congli Gao
- Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry, Zhengzhou 450002, PR China.
| | - Fengcai Li
- Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry, Zhengzhou 450002, PR China.
| | - Xi-Li Li
- Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry, Zhengzhou 450002, PR China.
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5
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Willis O, Petri F, De Rosa DF, Mandoli A, Pal R, Zinna F, Di Bari L. Two-Photon Circularly Polarized Luminescence of Chiral Eu Complexes. J Am Chem Soc 2023; 145:25170-25176. [PMID: 37937987 PMCID: PMC10683000 DOI: 10.1021/jacs.3c05957] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 10/17/2023] [Accepted: 10/18/2023] [Indexed: 11/09/2023]
Abstract
We report the synthesis of chiral lanthanide complexes with extended π conjugation for efficient circularly polarized luminescence (CPL) via two-photon excitation (2PE). The pyridine bis-oxazoline (PyBox) core provides the chiral Ln3+ environment, while the extension of the conjugated backbone through the pyridine 4-position with a phenylacetylene unit increases the two-photon absorption cross section. This work presents an important step toward the development of chiral systems displaying enhanced nonlinear optical properties, with potential applications in imaging and sensing, as well as in photodynamic therapy due to the selective excitation of molecules within a specific focal volume.
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Affiliation(s)
- Oliver
G. Willis
- Department
of Chemistry and Industrial Chemistry, University
of Pisa, via Moruzzi, 13, 56124 Pisa, Italy
| | - Filippo Petri
- Department
of Chemistry and Industrial Chemistry, University
of Pisa, via Moruzzi, 13, 56124 Pisa, Italy
| | - Davide F. De Rosa
- Department
of Chemistry, Durham University, South Road, Durham DH1 3LE, U.K.
| | - Alessandro Mandoli
- Department
of Chemistry and Industrial Chemistry, University
of Pisa, via Moruzzi, 13, 56124 Pisa, Italy
| | - Robert Pal
- Department
of Chemistry, Durham University, South Road, Durham DH1 3LE, U.K.
| | - Francesco Zinna
- Department
of Chemistry and Industrial Chemistry, University
of Pisa, via Moruzzi, 13, 56124 Pisa, Italy
| | - Lorenzo Di Bari
- Department
of Chemistry and Industrial Chemistry, University
of Pisa, via Moruzzi, 13, 56124 Pisa, Italy
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6
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Li XL, Wang A, Li Y, Gao C, Cui M, Xiao HP, Zhou L. Two Chiral Yb III Enantiomeric Pairs with Distinct Enantiomerically Pure N-Donor Ligands Presenting Significant Differences in Photoluminescence, Circularly Polarized Luminescence, and Second-Harmonic Generation. Inorg Chem 2023; 62:4351-4360. [PMID: 36847208 DOI: 10.1021/acs.inorgchem.3c00106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
Using enantiomerically pure bidentate and tridentate N-donor ligands (1LR/1LS and 2LR/2LS) to replace two coordinated H2O molecules of Yb(tta)3(H2O)2, respectively, two eight- and nine-coordinated YbIII enantiomeric pairs, namely, Yb(tta)31LR/Yb(tta)31LS (Yb-R-1/Yb-S-1) and [Yb(tta)32LR]·CH3CN/[Yb(tta)32LS]·CH3CN (Yb-R-2/Yb-S-2), were isolated, in which Htta = 2-thenoyltrifluoroacetone, 1LR/1LS = (-)/(+)-4,5-pinene-2,2'-bipyridine, and 2LR/2LS = (-)/(+)-2,6-bis(4',5'-pinene-2'-pyridyl)pyridine. Interestingly, they not only present distinct degrees of chirality but also show large differences in near-infrared (NIR) photoluminescence (PL), circularly polarized luminescence (CPL), and second-harmonic generation (SHG). Eight-coordinated Yb-R-1 with an asymmetric bidentate 1LR ligand has a high NIR-PL quantum yield (1.26%) and a long decay lifetime (20 μs) at room temperature, being more than two times those (0.48%, 8 μs) of nine-coordinated Yb-R-2 with a C2-symmetric tridentate 2LR ligand. In addition, Yb-R-1 displays an efficient CPL with a luminescence dissymmetry factor glum = 0.077, being 4 × Yb-R-2 (0.018). In particular, Yb-R-1 presents a strong SHG response (0.8 × KDP), which is 8 × Yb-R-2 (0.1 × KDP). More remarkably, the precursor Yb(tta)3(H2O)2 exhibits a strong third-harmonic generation (THG) response (41 × α-SiO2), while the introduction of chiral N-donors results in the switching of THG to SHG. Our interesting findings provide new insights into both the functional regulation and switching in multifunctional lanthanide molecular materials.
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Affiliation(s)
- Xi-Li Li
- Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry, Zhengzhou 450001, P. R. China
| | - Ailing Wang
- Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry, Zhengzhou 450001, P. R. China
| | - Yanan Li
- Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry, Zhengzhou 450001, P. R. China
| | - Congli Gao
- Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry, Zhengzhou 450001, P. R. China
| | - Minghui Cui
- Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry, Zhengzhou 450001, P. R. China
| | - Hong-Ping Xiao
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325027, P. R. China
| | - Liming Zhou
- Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry, Zhengzhou 450001, P. R. China
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7
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Zinna F, Pasini M, Cabras M, Scavia G, Botta C, Di Bari L, Giovanella U. Impact of chiral ligands on photophysical and electro-optical properties of β-diketonate europium complexes in circularly polarized OLEDs. Chirality 2023; 35:270-280. [PMID: 36847610 DOI: 10.1002/chir.23538] [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: 11/30/2022] [Revised: 01/19/2023] [Accepted: 01/20/2023] [Indexed: 03/01/2023]
Abstract
Luminescent lanthanide complexes exhibiting chiroptical properties are attracting attention for their application in chiral optoelectronics and photonics, thanks to their unique optical properties, allied to intraconfigurational f-f transitions, which are generally electric-dipole-forbidden and can be magnetic dipole-allowed, which in an appropriate environment can lead to high dissymmetry factors and strong luminescence, in the presence of an antenna ligand. However, because luminescence and chiroptical activity are governed by different selection rules, their successful application in commonly used technologies is still an expectation. Recently, we showed that europium complexes bearing β-diketonates acting as luminescence sensitizers, and chiral bis(oxazolinyl) pyridine derivatives as the chirality inducer, reasonably perform in circularly polarized (CP) organic light-emitting devices (OLEDs). Indeed, europium β-diketonate complexes are an interesting molecular starting point, given their strong luminescence and their established use in conventional (i.e., nonpolarized) OLEDs. In this context, it is interesting to investigate in detail the impact of the ancillary chiral ligand on complex emission properties and the performances of corresponding CP-OLEDs. Here we show that, by incorporating the chiral compound as emitter in the architecture of solution processed electroluminescent devices, CP emission is retained, and the efficiency of the device is comparable to reference unpolarized OLED. The observed remarkable dissymmetry values strengthen the position of chiral lanthanide-OLEDs as CP-emitting devices.
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Affiliation(s)
- Francesco Zinna
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Pisa, Italy
| | - Mariacecilia Pasini
- Consiglio Nazionale delle Ricerche, Istituto di Scienze e Tecnologie Chimiche "Giulio Natta", Milan, Italy
| | - Matteo Cabras
- Consiglio Nazionale delle Ricerche, Istituto di Scienze e Tecnologie Chimiche "Giulio Natta", Milan, Italy
| | - Guido Scavia
- Consiglio Nazionale delle Ricerche, Istituto di Scienze e Tecnologie Chimiche "Giulio Natta", Milan, Italy
| | - Chiara Botta
- Consiglio Nazionale delle Ricerche, Istituto di Scienze e Tecnologie Chimiche "Giulio Natta", Milan, Italy
| | - Lorenzo Di Bari
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Pisa, Italy
| | - Umberto Giovanella
- Consiglio Nazionale delle Ricerche, Istituto di Scienze e Tecnologie Chimiche "Giulio Natta", Milan, Italy
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8
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Okayasu Y, Wakabayashi K, Yuasa J. Anion-Driven Circularly Polarized Luminescence Inversion of Unsymmetrical Europium(III) Complexes for Target Identifiable Sensing. Inorg Chem 2022; 61:15108-15115. [PMID: 36106989 PMCID: PMC9516667 DOI: 10.1021/acs.inorgchem.2c02202] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yoshinori Okayasu
- Department of Applied Chemistry, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Kota Wakabayashi
- Department of Applied Chemistry, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Junpei Yuasa
- Department of Applied Chemistry, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
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9
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Willis OG, Petri F, Pescitelli G, Pucci A, Cavalli E, Mandoli A, Zinna F, Di Bari L. Efficient 1400–1600 nm Circularly Polarized Luminescence from a Tuned Chiral Erbium Complex. Angew Chem Int Ed Engl 2022; 61:e202208326. [PMID: 35754002 PMCID: PMC9545264 DOI: 10.1002/anie.202208326] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Indexed: 11/30/2022]
Abstract
Novel chiral Er complexes based on both enantiomers of extended iPrPyBox (2,6‐Bis[4‐isopropyl‐4,5‐dihydrooxazol‐2‐yl)]pyridine) show strong near‐infrared circularly polarized luminescence (CPL) within the 1400 to 1600 nm spectral region under 450 nm irradiation. CPL activity in this region, despite being particularly rare, would open the way to potential applications in the domain, e.g., of fiber‐optic telecommunications and free‐space long‐distance optical communications employing circularly polarized light. Moreover, the long wavelength excitation is advantageous for applications in the field of (circularly polarized) microscopy and bioimaging.
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Affiliation(s)
- Oliver G. Willis
- Department of Chemistry and Industrial Chemistry University of Pisa via Moruzzi, 13 56126 Pisa Italy
| | - Filippo Petri
- Department of Chemistry and Industrial Chemistry University of Pisa via Moruzzi, 13 56126 Pisa Italy
| | - Gennaro Pescitelli
- Department of Chemistry and Industrial Chemistry University of Pisa via Moruzzi, 13 56126 Pisa Italy
| | - Andrea Pucci
- Department of Chemistry and Industrial Chemistry University of Pisa via Moruzzi, 13 56126 Pisa Italy
| | - Enrico Cavalli
- Department of Chemical Sciences Life and Environmental Sustainability University of Parma Parco Area delle Scienze, 11/a 43124 Parma Italy
| | - Alessandro Mandoli
- Department of Chemistry and Industrial Chemistry University of Pisa via Moruzzi, 13 56126 Pisa Italy
| | - Francesco Zinna
- Department of Chemistry and Industrial Chemistry University of Pisa via Moruzzi, 13 56126 Pisa Italy
| | - Lorenzo Di Bari
- Department of Chemistry and Industrial Chemistry University of Pisa via Moruzzi, 13 56126 Pisa Italy
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10
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Panis JA, Louis M, Brosseau A, Katao S, de los Reyes F, Nakashima T, Métivier R, Allain C, Kawai T. Circularly Polarized Luminescence and Circular Dichroism of Bichromophoric Difluoroboron‐β‐diketonates: Inversion and Enhanced Chirality Based on Spatial Arrangements and Self‐Assembly. Chemistry 2022; 28:e202201012. [DOI: 10.1002/chem.202201012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Indexed: 11/07/2022]
Affiliation(s)
- Joy Ann Panis
- Photonic and Reactive Molecular Science Laboratory Division of Materials Science Nara Institute of Science and Technology Ikoma Nara Japan
- Université Paris-Saclay ENS Paris-Saclay, CNRS, PPSM 91190 Gif-sur-Yvette France
| | - Marine Louis
- Photonic and Reactive Molecular Science Laboratory Division of Materials Science Nara Institute of Science and Technology Ikoma Nara Japan
| | - Arnaud Brosseau
- Université Paris-Saclay ENS Paris-Saclay, CNRS, PPSM 91190 Gif-sur-Yvette France
| | - Shouhei Katao
- Photonic and Reactive Molecular Science Laboratory Division of Materials Science Nara Institute of Science and Technology Ikoma Nara Japan
| | - Florencio de los Reyes
- Photonic and Reactive Molecular Science Laboratory Division of Materials Science Nara Institute of Science and Technology Ikoma Nara Japan
| | - Takuya Nakashima
- Photonic and Reactive Molecular Science Laboratory Division of Materials Science Nara Institute of Science and Technology Ikoma Nara Japan
| | - Rémi Métivier
- Université Paris-Saclay ENS Paris-Saclay, CNRS, PPSM 91190 Gif-sur-Yvette France
| | - Clémence Allain
- Université Paris-Saclay ENS Paris-Saclay, CNRS, PPSM 91190 Gif-sur-Yvette France
| | - Tsuyoshi Kawai
- Photonic and Reactive Molecular Science Laboratory Division of Materials Science Nara Institute of Science and Technology Ikoma Nara Japan
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11
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Willis OG, Petri F, Pescitelli G, Pucci A, Cavalli E, Mandoli A, Zinna F, Di Bari L. Efficient 1400‐1600 nm Circularly Polarized Luminescence from a Tuned Chiral Erbium Complex. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202208326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Oliver George Willis
- Università di Pisa: Universita degli Studi di Pisa Dipartimento di Chimica e Chimica Industriale ITALY
| | - Filippo Petri
- Università di Pisa: Universita degli Studi di Pisa Dipartimento di Chimica e Chimica Industriale ITALY
| | - Gennaro Pescitelli
- Università di Pisa: Universita degli Studi di Pisa Chimica e Chimica Industriale ITALY
| | - Andrea Pucci
- Università di Pisa: Universita degli Studi di Pisa Chimica e Chimica Industriale ITALY
| | - Enrico Cavalli
- University of Parma: Universita degli Studi di Parma Department of Chemical Sciences, Life and Environmental Sustainability ITALY
| | - Alessandro Mandoli
- Università di Pisa: Universita degli Studi di Pisa Chimica e Chimica Industriale ITALY
| | - Francesco Zinna
- Università di Pisa: Universita degli Studi di Pisa Chimica e Chimica Industriale ITALY
| | - Lorenzo Di Bari
- Università di Pisa: Universita degli Studi di Pisa Chimica e Chimica Industriale Via Moruzzi 13 56124 Pisa ITALY
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12
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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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13
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Abhervé A, Mastropasqua Talamo M, Vanthuyne N, Zinna F, Di Bari L, Grasser M, Le Guennic B, Avarvari N. Chiral Emissive Lanthanide Complexes from Enantiopure [6]Helicene‐bis(pyrazolyl)‐pyridine Ligands. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202200010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | | | - Francesco Zinna
- University of Pisa: Universita degli Studi di Pisa Chemistry ITALY
| | - Lorenzo Di Bari
- Università di Pisa: Universita degli Studi di Pisa Chemistry ITALY
| | | | | | - Narcis Avarvari
- University of Angers UMR 6200 CNRS-Univ. d'Angers 2 Bd. LavoisierBat. K 49045 Angers FRANCE
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14
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Shigemitsu H, Kawakami K, Nagata Y, Kajiwara R, Yamada S, Mori T, Kida T. Cyclodextrins with Multiple Pyrenyl Groups: An Approach to Organic Molecules Exhibiting Bright Excimer Circularly Polarized Luminescence. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202114700] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Hajime Shigemitsu
- Department of Applied Chemistry Graduate School of Engineering Osaka University 2-1 Yamadaoka Suita, 565–0871 Japan
- Frontier Research Base for Global Young Researchers Graduate School of Engineering Osaka University 2-1 Yamadaoka Suita, 565–0871 Japan
- Global Center for Medical Engineering and Informatics Osaka University 2-1 Yamadaoka Suita, 565–0871 Japan
- Integrated Frontier Research for Medical Science Division Institute for Open and Transdisciplinary Research Initiatives (OTRI) Osaka University Japan
| | - Kosei Kawakami
- Department of Applied Chemistry Graduate School of Engineering Osaka University 2-1 Yamadaoka Suita, 565–0871 Japan
| | - Yuuya Nagata
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD) Hokkaido University, Nishi 10, Kita Sapporo, 001–0021 Japan
| | - Rikuo Kajiwara
- Department of Applied Chemistry Graduate School of Engineering Osaka University 2-1 Yamadaoka Suita, 565–0871 Japan
| | - Shintaro Yamada
- Department of Applied Chemistry Graduate School of Engineering Osaka University 2-1 Yamadaoka Suita, 565–0871 Japan
| | - Tadashi Mori
- Department of Applied Chemistry Graduate School of Engineering Osaka University 2-1 Yamadaoka Suita, 565–0871 Japan
| | - Toshiyuki Kida
- Department of Applied Chemistry Graduate School of Engineering Osaka University 2-1 Yamadaoka Suita, 565–0871 Japan
- Integrated Frontier Research for Medical Science Division Institute for Open and Transdisciplinary Research Initiatives (OTRI) Osaka University Japan
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15
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Tanase T, Nakamae K, Okawa Y, Hamada M, Matsumoto A, Nakajima T, Nakashima T, Kawai T. Chiral Dinuclear Eu(III), Tb(III), and Y(III) Complexes Supported by P-Stereogenic Linear Tetraphosphine Tetraoxide. Chemistry 2021; 28:e202104060. [PMID: 34911149 DOI: 10.1002/chem.202104060] [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: 11/10/2021] [Indexed: 11/10/2022]
Abstract
A P -stereogenic linear tetraphosphine tetraoxide, ( R,R )- or ( S,S )-dpmppm(=O) 4 , was synthesized to prepare C 2 dinuclear M(hfa) 3 complexes (M = Eu, Tb, Y) as the first example of lanthanide(III) complexes with P -chiral multidentate phosphine oxides. The mononuclear M(hfa) 3 complexes (M = Eu, Y) with a P -chiral diphosphine oxide, tpdpb(=O) 2 , were also prepared, and comparison of their photophysical properties for the Eu(III) complexes revealed that significant chiral induction from the P -chiral centers arises on the achiral M(hfa) 3 units through intramolecular π-π stacking constraint in the dinuclear system.
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Affiliation(s)
- Tomoaki Tanase
- Nara Women's University, Faculty of Science, Kitauoya-nishi-machi, 630-8506, Nara, JAPAN
| | | | - Yume Okawa
- Nara Joshi Daigaku Rigakubu Kagaku Seimei Kankyo Gakka, Faculty of Science, JAPAN
| | - Mami Hamada
- Nara Joshi Daigaku, Faculty of Science, JAPAN
| | | | | | - Takuya Nakashima
- Nara Institute of Science and Technology: Nara Sentan Kagaku Gijutsu Daigakuin Daigaku, Division of Material Science, JAPAN
| | - Tsuyoshi Kawai
- Nara Institute of Science and Technology: Nara Sentan Kagaku Gijutsu Daigakuin Daigaku, Division of Material Science, JAPAN
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16
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Ślepokura K, Cabreros TA, Muller G, Lisowski J. Sorting Phenomena and Chirality Transfer in Fluoride-Bridged Macrocyclic Rare Earth Complexes. Inorg Chem 2021; 60:18442-18454. [PMID: 34784708 PMCID: PMC8653217 DOI: 10.1021/acs.inorgchem.1c03034] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Indexed: 11/28/2022]
Abstract
The reaction of fluoride anions with mononuclear lanthanide(III) and yttrium(III) hexaaza-macrocyclic complexes results in the formation of dinuclear fluoride-bridged complexes. As indicated by X-ray crystal structures, in these complexes two metal ions bound by the macrocycles are linked by two or three bridging fluoride anions, depending on the type of the macrocycle. In the case of the chiral hexaaza-macrocycle L1 derived from trans-1,2-diaminocyclohexane, the formation of these μ2-fluorido dinuclear complexes is accompanied by enantiomeric self-recognition of macrocyclic units. In contrast, this kind of recognition is not observed in the case of complexes of the chiral macrocycle L2 derived from 1,2-diphenylethylenediamine. The reaction of fluoride with a mixture of mononuclear complexes of L1 and L2, containing two different Ln(III) ions, results in narcissistic sorting of macrocyclic units. Conversely, a similar reaction involving mononuclear complexes of L1 and complexes of achiral macrocycle L3 based on ethylenediamine results in sociable sorting of macrocyclic units and preferable formation of heterodinuclear complexes. In addition, formation of these heterodinuclear complexes is accompanied by chirality transfer from the chiral macrocycle L1 to the achiral macrocycle L3 as indicated by CPL and CD spectra.
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Affiliation(s)
- Katarzyna Ślepokura
- Department
of Chemistry, University of Wrocław, 14 F. Joliot-Curie, 50-383 Wrocław, Poland
| | - Trevor A. Cabreros
- Department
of Chemistry, San José State University, One Washington Square, San José, California 95192-0101, United States
| | - Gilles Muller
- Department
of Chemistry, San José State University, One Washington Square, San José, California 95192-0101, United States
| | - Jerzy Lisowski
- Department
of Chemistry, University of Wrocław, 14 F. Joliot-Curie, 50-383 Wrocław, Poland
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17
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Shigemitsu H, Kawakami K, Kajiwara R, Yamada S, Mori T, Kida T, Nagata Y. Cyclodextrins with Multiple Pyrenyl Groups: An Approach to Organic Molecules Exhibiting Bright Excimer Circularly Polarized Luminescence. Angew Chem Int Ed Engl 2021; 61:e202114700. [PMID: 34783445 DOI: 10.1002/anie.202114700] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Indexed: 11/08/2022]
Abstract
Circularly polarized luminescence (CPL) has attracted much attention because of its potential for electronic and biological applications. Herein, we report a simple and effective approach to organic molecules exhibiting bright CPL by combining a chiral cyclic molecular scaffold and multiple excimer-enabling moieties. An a-cyclodextrin ( CyD ) scaffold was modified with six pyrenyl groups to obtain pyrene-cyclodextrins ( PCD s) in a one-step synthesis from commercially available compounds. The PCDs exhibited high molar extinction coefficients (ε ~ 10 5 M -1 cm -1 ), polarized emission with a good dissymmetry factor (| g lum | ~ 10 -2 ), and quantum yield ( Φ f ~ 0.5). Owing to the excellent photophysical properties of the PCDs, the circularly polarized luminescence brightness ( B CPL ) reached 340 M -1 cm -1 . Comprehensive photophysical and chiroptical studies of the PCD s with only five pyrene units and with linkers of various lengths connecting the CyD with the pyrene units revealed that the formation of a pyrene excimer in a spatially crowded environment is crucial for CPL anisotropy. This study paves the way for the development of bright CPL organic molecules.
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Affiliation(s)
- Hajime Shigemitsu
- Osaka University, Department of Applied Chemistry, 2-1 Yamadaoka, 565-0871, Suita, JAPAN
| | - Kosei Kawakami
- Osaka University: Osaka Daigaku, Department of Applied Chemistry, JAPAN
| | - Rikuo Kajiwara
- Osaka University School of Engineering Graduate School of Engineering: Osaka Daigaku Kogakubu Daigakuin Kogaku Kenkyuka, Department of Applied Chemistry, JAPAN
| | - Shintaro Yamada
- Osaka University School of Engineering Graduate School of Engineering: Osaka Daigaku Kogakubu Daigakuin Kogaku Kenkyuka, Department of Applied Chemistry, JAPAN
| | - Tadashi Mori
- Osaka University School of Engineering Graduate School of Engineering: Osaka Daigaku Kogakubu Daigakuin Kogaku Kenkyuka, Department of Applied Chemistry, JAPAN
| | - Toshiyuki Kida
- Osaka University School of Engineering Graduate School of Engineering: Osaka Daigaku Kogakubu Daigakuin Kogaku Kenkyuka, Department of Applied Chemistry, JAPAN
| | - Yuuya Nagata
- Hokkaido Daigaku, Institute for chemical reaction design and discovery, JAPAN
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18
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Zheng D, Guo S, Zheng L, Xu Q, Wang Y, Jiang H. Red circularly polarized luminescence from intramolecular excimers restricted by chiral aromatic foldamers. Chem Commun (Camb) 2021; 57:12016-12019. [PMID: 34713879 DOI: 10.1039/d1cc05163f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Aromatic oligoamide foldamers are highlighted as a verstile paltform for developing single-handed foldamers with two aromatic acetenyl groups at the same side. The foldamers with pyrene acetenyl units exhibit red excimer emissions, which were circularly polarized and show interesting circularly polarized luminescence properties with high CPL brightness BCPL up to 109.8 M-1.cm-1. The red excimer CPL was attributed to the extended conjugations and the spatial restriction of pyrene units at the same side of foldamers.
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Affiliation(s)
- Dan Zheng
- College of Chemistry, Beijing Normal University, Beijing 100875, China.
| | - Shengzhu Guo
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Lu Zheng
- College of Chemistry, Beijing Normal University, Beijing 100875, China. .,School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Qi Xu
- College of Chemistry, Beijing Normal University, Beijing 100875, China.
| | - Ying Wang
- College of Chemistry, Beijing Normal University, Beijing 100875, China.
| | - Hua Jiang
- College of Chemistry, Beijing Normal University, Beijing 100875, China. .,School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
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19
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Cui M, Yang L, Li F, Zhou L, Song Y, Fang SM, Liu CM, Li XL. Multifunctional Dy III Enantiomeric Pairs Showing Enhanced Photoluminescences and Third-Harmonic Generation Responses through the Coordination Role of Homochiral Tridentate N,N,N-Pincer Ligands. Inorg Chem 2021; 60:13366-13375. [PMID: 34428893 DOI: 10.1021/acs.inorgchem.1c01682] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
By utilizing Dy(hfac)3(H2O)2 to react with enantiomerically pure tridentate N,N,N-pincer ligands, namely (-)/(+)-2,6-bis(4',5'-pinene-2'-pyridyl)pyridine (LR and LS), respectively, homochiral DyIII enantiomeric pairs formulated as Dy(hfac)3LR/Dy(hfac)3LS (R-1/S-1) (hfac- = hexafluoroacetylacetonate) were achieved and structurally characterized. Meanwhile, their magnetic, photoluminescent (PL), and chiroptical properties were probed. The PL test results indicate that the precursor Dy(hfac)3(H2O)2 only shows very weak emission, while R-1 exhibits characteristic DyIII f-f transition emission bands at room temperature. Furthermore, the nonlinear optical responses of Dy(hfac)3(H2O)2, LR/LS, and R-1/S-1 were investigated in detail based on crystalline samples. The results reveal that LR and LS present the coexistence of second- and third-harmonic generation (SHG and THG) responses with more intense signals for SHG responses; and Dy(hfac)3(H2O)2 merely displays weak THG responses, while R-1 and S-1 also only exhibit THG responses. However, the THG intensities of R-1 and S-1 are more than six times larger than that of Dy(hfac)3(H2O)2 under the identical measurement conditions. These results demonstrate that introducing homochiral N,N,N-pincer ligands to replace two H2O molecules of Dy(hfac)3(H2O)2 results in significant improvements of both PL performances and THG responses of resultant R-1/S-1 enantiomers. R-1 and S-1 integrate PL, THG, and chiral optical activity in one molecule, suggesting their multifunctional merits. In particular, a convenient method is introduced to simultaneously test THG and SHG responses of molecular materials based on crystalline samples in this work.
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Affiliation(s)
- Minghui Cui
- Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry, Zhengzhou 450002, PR China
| | - Linpo Yang
- Department of Applied Physics, Harbin Institute of Technology, Harbin 150001, PR China
| | - Fengcai Li
- Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry, Zhengzhou 450002, PR China
| | - Liming Zhou
- Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry, Zhengzhou 450002, PR China
| | - Yinglin Song
- Department of Applied Physics, Harbin Institute of Technology, Harbin 150001, PR China
| | - Shao-Ming Fang
- Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry, Zhengzhou 450002, PR China
| | - Cai-Ming Liu
- Bejing National Laboratory for Molecular Sciences, Institution of Chemistry, Chinese Academy of Sciences, Bejing 100190, PR China
| | - Xi-Li Li
- Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry, Zhengzhou 450002, PR China
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20
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Mahmudov KT, Huseynov FE, Aliyeva VA, Guedes da Silva MFC, Pombeiro AJL. Noncovalent Interactions at Lanthanide Complexes. Chemistry 2021; 27:14370-14389. [PMID: 34363268 DOI: 10.1002/chem.202102245] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Indexed: 11/10/2022]
Abstract
Lanthanide complexes have attracted a widespread attention due to their structural diversity, as well as multifunctional and tunable properties. The development of lanthanide based functional materials has often relied on the design of the secondary coordination sphere of the corresponding lanthanide complexes. For instance, usually simple lanthanide salts (solvento complexes) do not catalyze effectively organic reactions or provide low yield of the expected product, whereas the presence of a suitable organic ligand with a noncovalent bond donor or acceptor centre (secondary coordination sphere) modifies the symmetry around the metal centre in lanthanide complexes which then successfully can act as catalysts in both homogenous and heterogenous catalysis. In this minireview, we discuss several relevant examples, based on X-ray crystal structure analyses, in which the hydrogen, halogen, chalcogen, pnictogen, tetrel and rare-earth bonds, as well as cation-π, anion-π, lone pair-π, π-π and pancake interactions, are used as a synthon in the decoration of the secondary coordination sphere of lanthanide complexes.
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Affiliation(s)
- Kamran T Mahmudov
- University of Lisbon Higher Technical Institute: Universidade de Lisboa Instituto Superior Tecnico, CQE, R., 1009 - 001, Lisbon, PORTUGAL
| | - Fatali E Huseynov
- Baku State University, Department of Ecology and Soil Sciences, AZERBAIJAN
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21
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Okayasu Y, Yuasa J. Structure Determination of Europium Complexes in Solution Using Crystal-Field Splitting of the Narrow f- f Emission Lines. J Phys Chem Lett 2021; 12:6867-6874. [PMID: 34279951 PMCID: PMC8397343 DOI: 10.1021/acs.jpclett.1c01885] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Accepted: 07/08/2021] [Indexed: 06/13/2023]
Abstract
Nine nona-coordinated Eu(III) complexes (1-9) studied here have three unsymmetric β-diketonate ligands and one chiral Ph-Pybox ligand, which can produce eight possible coordination isomers, depending on the position of the three unsymmetric β-diketonate ligands. Substituents on the β-diketonate ligands cause a rational structural rearrangement upon crystallization. Substituents with higher polarity, including -CN, -F, -Cl, -Br, -OMe, and -OEt, employ intercomplex hydrogen bonding to generate an association complex through structural rearrangement upon crystallization. Substituents with lower polarity, including -CF3, -SMe, and -Me, cause the most energetically favorable isomer to crystallize directly from solution. These two crystal structures exhibit well-resolved f-f emission lines with characteristic Stark splitting structures. This work revealed that the configuration of the Eu(III) complexes in solution can be determined by systematic comparison of their Stark splitting structures to those obtained from the solid phase using density functional theory (DFT)-based predictions combined with circular dichroism data.
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Affiliation(s)
- Yoshinori Okayasu
- Department of Applied Chemistry, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Junpei Yuasa
- Department of Applied Chemistry, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
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22
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Arrico L, Benetti C, Di Bari L. Combining Lanthanides with PyBox Ligands: A Simple Route to Circularly Polarized Light Emitters**. CHEMPHOTOCHEM 2021. [DOI: 10.1002/cptc.202100082] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Lorenzo Arrico
- Department of Chemistry and Industrial Chemistry University of Pisa Via G. Moruzzi 13 56124 Pisa Italy
| | - Costanza Benetti
- Department of Chemistry and Industrial Chemistry University of Pisa Via G. Moruzzi 13 56124 Pisa Italy
| | - Lorenzo Di Bari
- Department of Chemistry and Industrial Chemistry University of Pisa Via G. Moruzzi 13 56124 Pisa Italy
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23
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Suko N, Itamoto H, Okayasu Y, Okura N, Yuasa J. Helix-mediated over 1 nm-range chirality recognition by ligand-to-ligand interactions of dinuclear helicates. Chem Sci 2021; 12:8746-8754. [PMID: 34257874 PMCID: PMC8246085 DOI: 10.1039/d1sc01611c] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Accepted: 05/13/2021] [Indexed: 12/18/2022] Open
Abstract
Long-range chirality recognition between the two chiral guest ligands can be tuned based on the helix distances (dLn–Ln = 11.5 and 14.0 Å) of bis-diketonate bridged dinuclear lanthanide complexes (2Th and 3Th, respectively) used as mediators. Both 2Th and 3Th form one-dimensional (1D) helical structures upon terminal binding of two chiral guest co-ligands (LR or LS). Long-range chiral self-recognition is achieved in self-assembly of 2Th with LR and LS to preferentially form homochiral assemblies, 2Th-LR·LR and 2Th-LS·LS, whereas there is no direct molecular interaction between the two guest ligands at the terminal edges. X-ray crystal structure analysis and density functional theory studies reveal that long-range chiral recognition is achieved by terminal ligand-to-ligand interactions between the bis-diketonate ligands and chiral guest co-ligands. Conversely, in self-assembly of 3Th with a longer helix length, statistical binding of LR and LS occurs, forming heterochiral (3Th-LR·LS) and homochiral (3Th-LR·LR and 3Th-LS·LS) assemblies in an almost 1 : 1 ratio. When phenyl side arms of the chiral guest co-ligands are replaced by isopropyl groups (L′R and L′S), chiral self-recognition is also achieved in the self-assembly process of 3Th with the longer helix length to generate homochiral (3Th-L′R·L′R and 3Th-L′S·L′S) assemblies as the favored products. Thus, subtle modification of the chiral guests is capable of achieving over 1.4 nm-range chirality recognition. Long-range chirality recognition between the two chiral guest ligands can be tuned based on the helix distances (dLn–Ln = 11.5 and 14.0 Å) of bis-diketonate bridged dinuclear lanthanide complexes (2Th and 3Th, respectively).![]()
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Affiliation(s)
- Natsumi Suko
- Department of Applied Chemistry, Tokyo University of Science 1-3, Kagurazaka Shunjuku-ku Tokyo 162-8601 Japan
| | - Hideki Itamoto
- Department of Applied Chemistry, Tokyo University of Science 1-3, Kagurazaka Shunjuku-ku Tokyo 162-8601 Japan
| | - Yoshinori Okayasu
- Department of Applied Chemistry, Tokyo University of Science 1-3, Kagurazaka Shunjuku-ku Tokyo 162-8601 Japan
| | - Naoya Okura
- Department of Applied Chemistry, Tokyo University of Science 1-3, Kagurazaka Shunjuku-ku Tokyo 162-8601 Japan
| | - Junpei Yuasa
- Department of Applied Chemistry, Tokyo University of Science 1-3, Kagurazaka Shunjuku-ku Tokyo 162-8601 Japan
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24
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Zhang Z, Zhou Y, Gao T, Yan P, Zou X, Li H. Diastereoselective self-assembly of a triple-stranded europium helicate with light modulated chiroptical properties. Dalton Trans 2021; 50:4604-4612. [PMID: 33710241 DOI: 10.1039/d1dt00251a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Chiroptical photoswitches are of increasing interest for their potential in advanced information technologies. Herein, an achiral bis-β-diketonate ligand (o-L) with a photoresponsive diarylethene moiety as a linker was designed, which co-assembled with Eu3+ ions and R- and S-bis(diphenylphosphoryl)-1,10-binaphthyl (R/S-BINAPO) as chiral ancillaries to form dinuclear triple-stranded helicates, [Eu2(o-L)3(R/S-BINAPO)2]. The helicates in the enantiopure form were confirmed by 1H, 19F, 31P NMR and DOSY NMR analyses. Furthermore, the mirror-image CD and CPL spectra also demonstrate the existence of stable ground- and excited-state chiralities in solution. When exposed to alternate ultraviolet and visible light, the helicates showed reversible color variations from colorless to purple, followed by the presence of light-triggered quadruple optical and chiroptical outputs, named CD, PL, CPL and glum switches. With these light-modulated optical outputs, the possibility for the fabrication of IMPLICATION and INHIBIT logic gates was discussed.
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Affiliation(s)
- Zhihui Zhang
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education; School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China.
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25
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Cui M, Wang AL, Gao CL, Zhou L, Wu T, Fang S, Xiao HP, Li FC, Li XL. Two homochiral Eu III and Sm III enantiomeric pairs showing circularly polarized luminescence, photoluminescence and triboluminescence. Dalton Trans 2021; 50:1007-1018. [PMID: 33355317 DOI: 10.1039/d0dt03576a] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Two homochiral EuIII and SmIII tris(β-diketonate) enantiomeric pairs, based on fluorinated β-diketone (Hbtfa) and enantiopure asymmetric N,N'-donor ligands (LR and LS), Λ-Eu(btfa)3LR (R-1-Eu)/Δ-Eu(btfa)3LS (S-1-Eu) and Λ-Sm(btfa)3LR (R-2-Sm)/Δ-Sm(btfa)3LS (S-2-Sm) (btfa- = 4,4,4-trifluoro-1-phenyl-1,3-butanedionate and LR/LS = (-)/(+)-4,5-pineno-2,2'-bipyridine) were synthesized. The electronic circular dichroism (ECD) spectra confirmed their enantiomeric nature. R-1-Eu/S-1-Eu and R-2-Sm/S-2-Sm exhibit intense characteristic emissions of EuIII (red) and SmIII (orange-red) ions both in the solid state and in DCM with long lifetimes and high luminescence quantum yields. For example, the overall quantum yields reach up to 61% and 53% along with very high sensitization efficiency values of 82 and 79 for R-1-Eu in the solid state and in DCM, respectively. Notably, the corresponding values are determined to be 6.5% (solid state) and 3.1% (DCM) for R-2-Sm, which are among the highest quantum yields for rare SmIII tris(β-diketonate) luminescent complexes reported to date. Furthermore, R-1-Eu and R-2-Sm show a strong triboluminescence (TL) phenomenon visible with the naked eye in daylight. Moreover, R-1-Eu/S-1-Eu and R-2-Sm/S-2-Sm show circularly polarized luminescence (CPL) properties. Particularly, the luminescence dissymmetry factors (glum) for R-2-Sm/S-2-Sm are larger than those for R-1-Eu/S-1-Eu despite the fact that SmIII complexes usually show poorer emission than EuIII homologues, which is very rare in the reported EuIII and SmIII CPL-active complexes.
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Affiliation(s)
- Minghui Cui
- Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry, Zhengzhou 450002, P. R. China.
| | - Ai-Ling Wang
- Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry, Zhengzhou 450002, P. R. China.
| | - Cong-Li Gao
- Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry, Zhengzhou 450002, P. R. China.
| | - Liming Zhou
- Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry, Zhengzhou 450002, P. R. China.
| | - Tao Wu
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo náměstí 2, 16610 Prague 6, Czech Republic.
| | - Shaoming Fang
- Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry, Zhengzhou 450002, P. R. China.
| | - Hong-Ping Xiao
- School of Chemistry of Materials Engineering, Wenzhou University, Wenzhou 325027, P.R. China.
| | - Feng-Cai Li
- Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry, Zhengzhou 450002, P. R. China.
| | - Xi-Li Li
- Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry, Zhengzhou 450002, P. R. China.
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26
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Bi S, Zhou Y, Yao Y, Cheng Z, Gao T, Yan P, Li H. Chiral BINAPO Induced Circularly Polarized Luminescence in a Triple-Stranded Eu2L3(BINAPO)2 Helicate. Aust J Chem 2021. [DOI: 10.1071/ch20074] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Chiral lanthanide helicates with circularly polarized luminescence (CPL) properties have found potential application in bioanalyses and chirality sensing. However, the preparation of the enantiopure helicates through a coordination-directed self-assembly strategy is challenging due to the greatly labile coordination geometries of lanthanide ions. Herein, a pair of enantiopure triple-stranded EuIII helicates [(Eu2L3)(R/S-BINAPO)2] are assembled by three achiral C2-symmeric bis-β-diketones (4,4′-bis(4,4,4-trifluoro-1,3-dioxobutyl)(phenoxyl)-1,1′-biphenyl, L) helically twisting around two EuIII ions, and two chiral R/S-bis(diphenylphosphoryl)-1,1′-binaphthyl (R/S-BINAPO) as ancillary ligands. Electrospray ionization–mass spectrometry, NMR, and circular dichroism (CD) spectra confirm the formation of a pair of enantiopure chiral topological helicates (Eu2L3)(R-BINAPO)2 and (Eu2L3)(S-BINAPO)2. As expected, the helicates present strong CPL with the |glum| up to 0.09, and the higher luminescent quantum yields (QYs) of up to 51%.
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Gendron F, Di Pietro S, Abad Galán L, Riobé F, Placide V, Guy L, Zinna F, Di Bari L, Bensalah-Ledoux A, Guyot Y, Pilet G, Pointillart F, Baguenard B, Guy S, Cador O, Maury O, Le Guennic B. Luminescence, chiroptical, magnetic and ab initio crystal-field characterizations of an enantiopure helicoidal Yb(iii) complex. Inorg Chem Front 2021. [DOI: 10.1039/d0qi01194k] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The electronic structure of a chiral Yb(iii)-based complex is fully determined by taking advantage of experimental magnetic, luminescence, and chiroptical (NIR-ECD and CPL) characterizations in combination with ab initio wavefunction calculations.
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de Bettencourt-Dias A, Rossini JSK, Sobrinho JA. Effect of the aromatic substituent on the para-position of pyridine-bis(oxazoline) sensitizers on the emission efficiency of their Eu III and Tb III complexes. Dalton Trans 2020; 49:17699-17708. [PMID: 33237048 DOI: 10.1039/d0dt03135f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Two efficient lanthanide ion sensitizers 2,6-bis(oxazoline)-4-phenyl-pyridine (PyboxPh, 1) and 2,6-bis(oxazoline)-4-thiophen-2-yl-pyridine (Pybox2Th, 2) were synthesized. 1 crystallizes in the monoclinic space group P21/c with cell parameters a = 16.3794(4) Å, b = 7.2856(2) Å, c = 11.7073(3) Å, β = 97.229(1)° and V = 1385.97(6) Å3. 2 crystallizes in the monoclinic space group P21/n with cell parameters a = 5.9472(2), b = 16.0747(6), c = 14.3716(5) Å, β = 93.503(1)° and V = 1371.35(8) Å3. Photophysical characterization of 1 shows that its triplet state energy is located at 22 250 cm-1 and efficient energy transfer is observed for EuIII and TbIII. Solutions of [Ln(PyboxPh)3]3+ in dichloromethane display an emission efficiency of 37.2% for Ln[double bond, length as m-dash]Eu and 24.0% for Ln[double bond, length as m-dash]Tb. The excited state lifetimes for EuIII and TbIII are 2.227 ms and 723 μs, respectively. The triplet state energy of 2 is located at 19 280 cm-1 and is therefore too low to efficiently sensitize TbIII emission. However, the sensitization of EuIII is effective, with an emission quantum yield of 14.5% and an excited state lifetime of 714 μs. This shows that the derivatization of the chelator is strongly influenced by the aromatic substituents on the para-position of the pyridine ring. New isostructural 1 : 1 complexes of PyboxPh with EuIII (3) and TbIII (4) were also isolated and crystallize in the triclinic space group P1[combining macron] with cell parameters a = 9.1845(2) Å, b = 10.3327(2) Å, c = 11.9654(2) Å, α = 98.419(1)°, β = 108.109(1)°, γ = 91.791(1)°, V = 1064.08(4) Å3 and a = 7.8052(1) Å, b = 11.8910(1) Å, c = 14.2668(2) Å, α = 72.557(1)°, β = 86.355(1)°, γ = 77.223(1)°, V = 1231.95(3) Å3, respectively.
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Tan YB, Okayasu Y, Katao S, Nishikawa Y, Asanoma F, Yamada M, Yuasa J, Kawai T. Visible Circularly Polarized Luminescence of Octanuclear Circular Eu(III) Helicate. J Am Chem Soc 2020; 142:17653-17661. [PMID: 32960585 DOI: 10.1021/jacs.0c08229] [Citation(s) in RCA: 82] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
This work reports on the structural and photophysical characterization of D4-symmetrical octanuclear circular LnIII helicates, [(R)- or (S)-iPr-Pybox]8(LnIII)8(THP)8 (where Ln = Eu and Tb, THP = trianionic tris-β-diketonate, and iPr-Pybox = chiral bis(4-isopropyl-2-oxazolinyl)pyridine). X-ray crystallographic analysis revealed that the octanuclear circular helicate possesses square antiprism architecture and consists of four [(R)- or (S)-iPr-Pybox]2LnIII2(THP)2 asymmetric units arranged in a closed ring form. Ligand-to-ligand interactions between the THP and the iPr-Pybox ligands have successfully directed formation of enantiopure, homoconfigurational (Δ,Δ,Δ,Δ,Δ,Δ,Δ,Δ)-R and (Λ,Λ,Λ,Λ,Λ,Λ,Λ,Λ)-S isomers. All of the nonacoordinated LnIII ions are identical and exhibit a distorted capped square antiprism (CSAP) geometry. Upon excitation of the ligand absorption band (λ = 360 nm), the circular helicates display characteristic EuIII (red, 5D0 → 7FJ, J = 0-4) or TbIII (green, 5D4 → 7FJ, J = 6-3) core f-f luminescence. The overall emission quantum yields of the circular EuIII and TbIII helicates are 0.145 and 0.0013, respectively, in chloroform. The EuIII and TbIII complexes exhibit remarkable circularly polarized luminescence (CPL) activity at their magnetic dipole transition with observed luminescence dissymmetry factors |glum| of 1.25 (5D0 → 7F1, λ = 592 nm) and 0.25 (5D4 → 7F5, λ = 541 nm), respectively. Exceptional |glum| values of the circular EuIII helicates highlight the visible intensity difference between left and right circularly polarized emissions of R and S isomers in chloroform and PMMA thin film.
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Affiliation(s)
- Yan Bing Tan
- Graduate School of Science and Technology, Division of Materials Science, Nara Institute of Science and Technology, NAIST, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan
| | - Yoshinori Okayasu
- Department of Applied Chemistry, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo 162-8061, Japan
| | - Shohei Katao
- Graduate School of Science and Technology, Division of Materials Science, Nara Institute of Science and Technology, NAIST, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan
| | - Yoshiko Nishikawa
- Graduate School of Science and Technology, Division of Materials Science, Nara Institute of Science and Technology, NAIST, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan
| | - Fumio Asanoma
- Graduate School of Science and Technology, Division of Materials Science, Nara Institute of Science and Technology, NAIST, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan
| | - Mihoko Yamada
- Graduate School of Science and Technology, Division of Materials Science, Nara Institute of Science and Technology, NAIST, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan
| | - Junpei Yuasa
- Department of Applied Chemistry, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo 162-8061, Japan
| | - Tsuyoshi Kawai
- Graduate School of Science and Technology, Division of Materials Science, Nara Institute of Science and Technology, NAIST, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan
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Tan YB, Yamada M, Katao S, Nishikawa Y, Asanoma F, Yuasa J, Kawai T. Self-assembled Tetranuclear Eu III Complexes with D2- and C2h-Symmetrical Square Scaffold. Inorg Chem 2020; 59:12867-12875. [PMID: 32851845 DOI: 10.1021/acs.inorgchem.0c01933] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Three new tetranuclear europium(III) alternating circular helicates, (2-PhRRRR/2-PhSSSS) [(R)- or (S)-Ph-Pybox]4EuIII4(BPP)6, (2-iPrRRRR/2-iPrSSSS) [(R)- or (S)-iPr-Pybox]4EuIII4(BPP)6, and (3-PhRRRR/3-PhSSSS) [(R)- or (S)-Ph-Pybox]4EuIII4(BHP)6, are presented with their structural and chiroptical characterization (BPP and BHP = bis-β-diketonates; Pybox = chiral bis(oxazolinyl) pyridine ligand). X-ray crystallographic analysis revealed that different extents of interligand-contacting interactions between bis-β-diketonates and Pybox ligands produce different bis-β-diketonates arrangements around four EuIII ions and, thus, their specific symmetry in the final tetranuclear complexes. 2-PhRRRR/2-PhSSSS and 3-PhRRRR/3-PhSSSS are recognized as D2-symmetry, while 2-iPrRRRR/2-iPrSSSS self-assemblies possess pseudo C2h-symmetry. Due to different molecular symmetry, 2-PhRRRR/2-PhSSSS and 2-iPrRRRR/2-iPrSSSS crystals display different ligands orientation in their EuIII coordination spheres. The presence of pseudo σh-mirror symmetry in 2-iPrRRRR/2-iPrSSSS promotes a pair of distinguishable EuIII geometries. All the chiral self-assemblies exhibit almost identical photoluminescence emission spectra patterns of f-f transitions in the EuIII core. The EuIII self-assemblies exhibit intense CPL with different observed |glum| values (2-PhRRRR/2-PhSSSS ∼ |0.31|, 2-iPrRRRR/2-iPrSSSS ∼ |0.08|, 3-PhRRRR/3-PhSSSS ∼ |0.31| in chloroform).
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Affiliation(s)
- Yan Bing Tan
- Graduate School of Science and Technology, Division of Materials Science, Nara Institute of Science and Technology, NAIST, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan
| | - Mihoko Yamada
- Graduate School of Science and Technology, Division of Materials Science, Nara Institute of Science and Technology, NAIST, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan
| | - Shohei Katao
- Graduate School of Science and Technology, Division of Materials Science, Nara Institute of Science and Technology, NAIST, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan
| | - Yoshiko Nishikawa
- Graduate School of Science and Technology, Division of Materials Science, Nara Institute of Science and Technology, NAIST, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan
| | - Fumio Asanoma
- Graduate School of Science and Technology, Division of Materials Science, Nara Institute of Science and Technology, NAIST, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan
| | - Junpei Yuasa
- Department of Applied Chemistry, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo 162-8061, Japan.,Precursory Research for Embryonic Science and Technology (PRESTO), Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Tsuyoshi Kawai
- Graduate School of Science and Technology, Division of Materials Science, Nara Institute of Science and Technology, NAIST, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan
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Fujiki M, Wang L, Ogata N, Asanoma F, Okubo A, Okazaki S, Kamite H, Jalilah AJ. Chirogenesis and Pfeiffer Effect in Optically Inactive Eu III and Tb III Tris(β-diketonate) Upon Intermolecular Chirality Transfer From Poly- and Monosaccharide Alkyl Esters and α-Pinene: Emerging Circularly Polarized Luminescence (CPL) and Circular Dichroism (CD). Front Chem 2020; 8:685. [PMID: 32903703 PMCID: PMC7438854 DOI: 10.3389/fchem.2020.00685] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Accepted: 06/30/2020] [Indexed: 11/30/2022] Open
Abstract
We report emerging circularly polarized luminescence (CPL) at 4f-4f transitions when lanthanide (EuIII and TbIII) tris(β-diketonate) embedded to cellulose triacetate (CTA), cellulose acetate butyrate (CABu), D-/L-glucose pentamethyl esters (D-/L-Glu), and D-/L-arabinose tetramethyl esters (D-/L-Ara) are in film states. Herein, 6,6,7,7,8,8,8-heptafluoro-2,2-dimethyl-3,5-octanedionate (fod) and 2,2,6,6-tetramethyl-3,5-heptanedione (dpm) were chosen as the β-diketonates. The glum value of Eu(fod)3 in CABu are +0.0671 at 593 nm (5D0→7F1) and −0.0059 at 613 nm (5D0→7F2), respectively, while those in CTA are +0.0463 and −0.0040 at these transitions, respectively. The glum value of Tb(fod)3 in CABu are −0.0029 at 490 nm (5D4→7F6), +0.0078 at 540 nm (5D4→7F5), and −0.0018 at 552 nm (5D4→7F5), respectively, while those in CTA are −0.0053, +0.0037, and −0.0059 at these transitions, respectively. D-/L-Glu and D-/L-Ara induced weaker glum values at 4f-4f transitions of Eu(fod)3, Tb(fod)3, and Tb(dpm)3. For comparison, Tb(dpm)3 in α-pinene showed clear CPL characteristics, though Eu(dpm)3 did not. A surplus charge neutralization hypothesis was applied to the origin of attractive intermolecular interactions between the ligands and saccharides. This idea was supported from the concomitant opposite tendency in upfield 19F-NMR and downfield 1H-NMR chemical shifts of Eu(fod)3 and the opposite Mulliken charges between F-C bonds (fod) and H-C bonds (CTA and D-/L-Glu). An analysis of CPL excitation (CPLE) and CPL spectra suggests that (+)- and (–)-sign CPL signals of EuIII and TbIII at different 4f-4f transitions in the visible region are the same with the (+)-and (–)-sign exhibited by CPLE bands at high energy levels of EuIII and TbIII in the near-UV region.
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Affiliation(s)
- Michiya Fujiki
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, Ikoma, Japan
| | - Laibing Wang
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, Ikoma, Japan
| | - Nanami Ogata
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, Ikoma, Japan
| | - Fumio Asanoma
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, Ikoma, Japan
| | - Asuka Okubo
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, Ikoma, Japan
| | - Shun Okazaki
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, Ikoma, Japan
| | - Hiroki Kamite
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, Ikoma, Japan
| | - Abd Jalil Jalilah
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, Ikoma, Japan.,School of Materials Engineering, Universiti Malaysia Perlis, Jejawi, Malaysia.,Centre of Excellence Frontier Materials Research, Universiti Malaysia Perlis, Kangar, Malaysia
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Tu Z, Yan Z, Liang X, Chen L, Wu Z, Wang Y, Zheng Y, Zuo J, Pan Y. Axially Chiral Biphenyl Compound-Based Thermally Activated Delayed Fluorescent Materials for High-Performance Circularly Polarized Organic Light-Emitting Diodes. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:2000804. [PMID: 32775163 PMCID: PMC7404162 DOI: 10.1002/advs.202000804] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 04/18/2020] [Indexed: 05/10/2023]
Abstract
To boost intrinsic circularly polarized luminescence (CPL) properties of chiral emitters, an axially chiral biphenyl unit is inlaid in thermally activated delayed fluorescent (TADF) skeleton, urging the participation of chiral source in frontier molecular orbital distributions. A pair of enantiomers, (R)-BPPOACZ and (S)-BPPOACZ, containing the cyano as electron-withdrawing moieties and carbazole and phenoxazine as electron-donating units are synthesized and separated. The circularly polarized TADF enantiomers exhibit both high photoluminescence quantum yield of 86.10% and excellent CPL activities with maximum dissymmetry factor |g PL| values of almost 10-2 in solution and 1.8 × 10-2 in doped film, which are among the best values of previously reported small chiral organic materials. Moreover, the circularly polarized organic light-emitting diodes based on the TADF enantiomers achieve the maximum external quantum efficiency of 16.6% with extremely low efficiency roll-off. Obvious circularly polarized electroluminescence signals with |g EL| values of 4 × 10-3 are also recorded.
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Affiliation(s)
- Zhen‐Long Tu
- State Key Laboratory of Coordination ChemistryCollaborative Innovation Center of Advanced MicrostructuresJiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringNanjing UniversityNanjing210023P. R. China
| | - Zhi‐Ping Yan
- State Key Laboratory of Coordination ChemistryCollaborative Innovation Center of Advanced MicrostructuresJiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringNanjing UniversityNanjing210023P. R. China
| | - Xiao Liang
- State Key Laboratory of Coordination ChemistryCollaborative Innovation Center of Advanced MicrostructuresJiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringNanjing UniversityNanjing210023P. R. China
| | - Lei Chen
- State Key Laboratory of Coordination ChemistryCollaborative Innovation Center of Advanced MicrostructuresJiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringNanjing UniversityNanjing210023P. R. China
| | - Zheng‐Guang Wu
- State Key Laboratory of Coordination ChemistryCollaborative Innovation Center of Advanced MicrostructuresJiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringNanjing UniversityNanjing210023P. R. China
| | - Yi Wang
- State Key Laboratory of Coordination ChemistryCollaborative Innovation Center of Advanced MicrostructuresJiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringNanjing UniversityNanjing210023P. R. China
| | - You‐Xuan Zheng
- State Key Laboratory of Coordination ChemistryCollaborative Innovation Center of Advanced MicrostructuresJiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringNanjing UniversityNanjing210023P. R. China
| | - Jing‐Lin Zuo
- State Key Laboratory of Coordination ChemistryCollaborative Innovation Center of Advanced MicrostructuresJiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringNanjing UniversityNanjing210023P. R. China
| | - Yi Pan
- State Key Laboratory of Coordination ChemistryCollaborative Innovation Center of Advanced MicrostructuresJiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringNanjing UniversityNanjing210023P. R. China
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Jintoku H, Ihara H. Chiroptical property tuning of supramolecular assemblies in polymer matrices. Chirality 2020; 32:704-709. [PMID: 32078750 DOI: 10.1002/chir.23201] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 02/05/2020] [Accepted: 02/11/2020] [Indexed: 01/02/2023]
Abstract
Chiroptical materials have received much attention in diverse fields for applications such as displays, sensors, smart memory devices, and catalysis. Here, we develop a simple fabrication method for polymer films with tunable chiroptical properties using small amounts of self-assembling fluorescent dye as an additive. Both the circular dichroism and circularly polarized luminescence signals of the film can be tuned between positive and negative values by thermal treatment. The chiroptical properties can be varied by slight changes in the orientation of chiral pyrene moieties in self-assembled nanofibril networks.
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Affiliation(s)
- Hirokuni Jintoku
- Research Institute for Sustainable Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan
| | - Hirotaka Ihara
- Department of Applied Chemistry and Biochemistry, Kumamoto University, Kumamoto, Japan
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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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35
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Tsurui M, Kitagawa Y, Fushimi K, Gon M, Tanaka K, Hasegawa Y. Electronic strain effect on Eu(iii) complexes for enhanced circularly polarized luminescence. Dalton Trans 2020; 49:5352-5361. [DOI: 10.1039/d0dt00699h] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The structural and electronic strain of ligands promotes the enhancement of the magnitude of circularly polarized luminescence in chiral Eu(iii) complexes.
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Affiliation(s)
- Makoto Tsurui
- Graduate School of Chemical Sciences and Engineering
- Hokkaido University
- Sapporo 060-8628
- Japan
| | - Yuichi Kitagawa
- Faculty of Engineering
- Sapporo
- Japan
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD)
- Hokkaido University
| | | | - Masayuki Gon
- Graduate School of Engineering
- Kyoto University
- Kyoto 615-8510
- Japan
| | - Kazuo Tanaka
- Graduate School of Engineering
- Kyoto University
- Kyoto 615-8510
- Japan
| | - Yasuchika Hasegawa
- Faculty of Engineering
- Sapporo
- Japan
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD)
- Hokkaido University
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Yang D, Liang H, Liu Y, Hou M, Kan L, Yang Y, Zang Z. A large-area luminescent downshifting layer containing an Eu3+ complex for crystalline silicon solar cells. Dalton Trans 2020; 49:4725-4731. [DOI: 10.1039/c9dt04858h] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We present a large-area luminescent down-shifting layer consists of polyvinyl alcohol embedding a newly synthesized ternary Eu3+ complex. C-Si solar cell coated with this layer displayed an enhancement of ~15% in external quantum efficiency.
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Affiliation(s)
- Daqing Yang
- College of Chemistry and Environmental Science
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education
- Chemical Biology Key Laboratory of Hebei Province
- Hebei University
- Baoding 071002
| | - Haiduo Liang
- College of Chemistry and Environmental Science
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education
- Chemical Biology Key Laboratory of Hebei Province
- Hebei University
- Baoding 071002
| | - Yujie Liu
- College of Chemistry and Environmental Science
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education
- Chemical Biology Key Laboratory of Hebei Province
- Hebei University
- Baoding 071002
| | - Man Hou
- College of Chemistry and Environmental Science
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education
- Chemical Biology Key Laboratory of Hebei Province
- Hebei University
- Baoding 071002
| | - Liping Kan
- College of Chemistry and Environmental Science
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education
- Chemical Biology Key Laboratory of Hebei Province
- Hebei University
- Baoding 071002
| | - Yijia Yang
- College of Chemistry and Environmental Science
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education
- Chemical Biology Key Laboratory of Hebei Province
- Hebei University
- Baoding 071002
| | - Zijian Zang
- College of Chemistry and Environmental Science
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education
- Chemical Biology Key Laboratory of Hebei Province
- Hebei University
- Baoding 071002
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Zhao T, Han J, Jin X, Zhou M, Liu Y, Duan P, Liu M. Dual-Mode Induction of Tunable Circularly Polarized Luminescence from Chiral Metal-Organic Frameworks. RESEARCH (WASHINGTON, D.C.) 2020; 2020:6452123. [PMID: 32025662 PMCID: PMC6998039 DOI: 10.34133/2020/6452123] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Accepted: 12/16/2019] [Indexed: 11/06/2022]
Abstract
The general approach for fabricating solid-state materials showing circularly polarized luminescence (CPL) is still in its challenge. In this work, chiral metal-organic frameworks (MOFs) with full-color and white-color circularly polarized light emission are firstly achieved through a host-guest emitter-loading strategy. Chiral zeolitic imidazolate frameworks (ZIFs, a class of MOFs) are fabricated by a facile and simple mixed-ligand coassembly pathway. Meantime, achiral dyes, quantum dots (QDs), and upconversion nanoparticles (UCNPs) are easily loaded into the chiral ZIFs during the synthetic process. Size-matched dyes can be solely encapsulated into the chiral cages of ZIF, resulting in induced CPL and enhanced luminescence efficiency in solid-state ZIF⊃dye composites. Large-sized QDs, after embedding into the gap of the ZIF particles, also exhibited intense CPL activity. Furthermore, through modulating the blending ratio of colored dyes or QDs in chiral ZIFs, white light-emitting ZIFs with circular polarization could be constructed in a solid state. In addition, through loading rare earth element-based upconversion nanoparticles (UCNPs) into chiral ZIFs, upconverted CPL (UC-CPL) could be achieved with a high dissymmetry factor (g lum). Thus, various achiral luminophores were endowed with CPL upon coupling with chiral ZIFs, which significantly deepened and enlarged the research scope of the chiroptical materials in a solid state.
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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, 100190 Beijing, China
- University of Chinese Academy of Sciences, Beijing 100049, 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, 100190 Beijing, China
| | - Xue Jin
- 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, 100190 Beijing, 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, 100190 Beijing, China
| | - Yan Liu
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, 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, 100190 Beijing, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Minghua Liu
- 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, 100190 Beijing, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Beijing National Laboratory for Molecular Science, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, No. 2, ZhongGuanCun BeiYiJie, Beijing 100190, China
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38
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Wong HY, Lo WS, Yim KH, Law GL. Chirality and Chiroptics of Lanthanide Molecular and Supramolecular Assemblies. Chem 2019. [DOI: 10.1016/j.chempr.2019.08.006] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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39
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Yang D, Han J, Liu M, Duan P. Photon Upconverted Circularly Polarized Luminescence via Triplet-Triplet Annihilation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1805683. [PMID: 30565750 DOI: 10.1002/adma.201805683] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2018] [Revised: 10/05/2018] [Indexed: 05/27/2023]
Abstract
Circularly polarized luminescent materials are of increasing attention due to their potential applications in advanced optical technologies, such as chiroptical devices and optical sensing. Recently, in all reported circularly polarized luminescent materials, high-energy excitation results in low-energy or downconverted circularly polarized luminescence (CPL) emission. Although photon upconversion-i.e., the conversion of low-energy light into higher-energy emission, with a wide variety of applications-has been widely reported, the integration of photon upconversion and CPL in one chiral system to achieve higher-energy CPL emission has never been reported. Herein, a brief review is provided of recent achievements in photon-upconverted CPL via the triplet-triplet annihilation mechanism, focusing on the amplified dissymmetry factor glum through energy transfer process and dual upconverted and downconverted CPL emission through chirality and energy transfer process.
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Affiliation(s)
- Dong Yang
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology (NCNST), No. 11 BeiYiTiao ZhongGuanCun, 100190, Beijing, P. R. 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 BeiYiTiao ZhongGuanCun, 100190, Beijing, P. R. China
| | - Minghua Liu
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology (NCNST), No. 11 BeiYiTiao ZhongGuanCun, 100190, Beijing, P. R. 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 BeiYiTiao ZhongGuanCun, 100190, Beijing, P. R. China
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40
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Hu S, Guo X, Zhou L, Cai L, Sun Q. Coordination‐Assembled Lanthanide‐Organic Ln
3
L
3
Sandwiches or Ln
4
L
4
Tetrahedron: Structural Transformation and Luminescence Modulation. CHINESE J CHEM 2019. [DOI: 10.1002/cjoc.201900101] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Shao‐Jun Hu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou Fujian 350002 China
- College of Chemistry, Fuzhou University Fuzhou Fujian 350108 China
| | - Xiao‐Qing Guo
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou Fujian 350002 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Li‐Peng Zhou
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou Fujian 350002 China
| | - Li‐Xuan Cai
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou Fujian 350002 China
| | - Qing‐Fu Sun
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou Fujian 350002 China
- College of Chemistry, Fuzhou University Fuzhou Fujian 350108 China
- University of Chinese Academy of Sciences Beijing 100049 China
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41
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Nonomura K, Yuasa J. Competing Allosteric Mechanisms for Coordination-Directed Conformational Changes of Chiral Stacking Structures with Aromatic Rings. Inorg Chem 2019; 58:6474-6484. [PMID: 31008595 DOI: 10.1021/acs.inorgchem.9b00665] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
This work revealed that significant asymmetric nonlinear effects can be found in a coordination-directed conformational alteration through competing allosteric mechanisms. Toward this aim, we have prepared new chiral bridging ligands [( S, S)- and ( R, R)-Im2An] containing an anthracene ring as a spacer with two ethynyl-linked chiral imidazole groups at the 9,10-positions. The ( S, S)- and ( R, R)-Im2An ligands (L) spontaneously form the assemblies with Zn2+ ions (M) in solution phase, giving L4M2-type assemblies with a general formula [( S, S)- or ( R, R)-Im2An]4(Zn2+)2. NMR studies revealed that the [( S, S)-Im2An]4(Zn2+)2 assembly has an anthracene dimer structure with a parallel-displaced geometry, leading to relatively small circular dichroism (CD) signals, as expected for nonchiral objects. Conversely, subsequent addition of chiral coligands [( R)- or ( S)-Ph-box] to [( S, S)-Im2An]4(Zn2+)2 afforded an alternative Zn2+ assembly with general formula [( R)- or ( S)-Ph-box]2[( S, S)-Im2An]2(Zn2+)2, where the chiral coligands expel two of the ( S, S)-Im2An ligands that were singly bound to the Zn2+ ions in the original [( S, S)-Im2An]4(Zn2+)2 assembly. This ligand-exchange reaction causes conformational alteration from a parallel-displaced structure to a twisted stacking between the anthracene rings inside the Zn2+ assembly, which results in a significant enhancement of CD signals due to excitonic interactions of the chiral anthracene dimer. Dissymmetry factor ( gCD) for CD due to chiral stacking structures shows a significant inverse sigmoidal response to the enantiomeric excess of the chiral coligands. The observed nonlinear phenomena are results of the two conflicting mechanisms, homochiral cooperative association (homochiral self-sorting) to form CD-active assemblies [( S)- or ( R)-Ph-box]2[( S, S)-Im2An]2(Zn2+)2 versus heterochiral cooperative dissociation of [( S, S)-Im2An]4(Zn2+)2 by sequestering of Zn2+ inside the assembly through formation of a heterochiral 2:1 Zn2+ complex ([( R)-Ph-box][( S)-Ph-box]Zn2+). The presented mechanisms provide a new strategy for generating switch-like OFF/ON states in chiral systems.
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Affiliation(s)
- Kohei Nonomura
- Department of Applied Chemistry , Tokyo University of Science , 1-3 Kagurazaka , Shinjuku-ku , Tokyo 162-8061 , Japan
| | - Junpei Yuasa
- Department of Applied Chemistry , Tokyo University of Science , 1-3 Kagurazaka , Shinjuku-ku , Tokyo 162-8061 , Japan
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42
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Imai Y, Yuasa J. Supramolecular chirality transformation driven by monodentate ligand binding to a coordinatively unsaturated self-assembly based on C 3-symmetric ligands. Chem Sci 2019; 10:4236-4245. [PMID: 31057752 PMCID: PMC6471804 DOI: 10.1039/c9sc00399a] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 03/01/2019] [Indexed: 01/04/2023] Open
Abstract
Monodentate ligand binding is facilitated by supramolecular chirality transformations from propeller-shaped chirality into single-twist chirality by altering the self-assembly of C 3-symmetric chiral ligands. The C 3-symmetric chiral ligands (Im R 3Bz and Im S 3Bz) contain three chiral imidazole side arms (Im R and Im S ) at the 1,3,5-positions of a central benzene ring. Upon coordination to zinc ions (Zn2+), which have a tetrahedral coordination preference, the C 3-symmetric chiral ligands assemble, in a stepwise manner, into a propeller-shaped assembly with a general formula (Im( R or S ) 3Bz)4(Zn2+)3. In this structure each Zn2+ ion coordinates to the three individual imidazole side arms. The resulting assembly is formally coordinatively unsaturated (coordination number, n = 3) and capable of accepting monodentate co-ligands (imidazole: ImH2) to afford a coordinatively saturated assembly [(ImH2)3(Im R 3Bz)4(Zn2+)3]. The preformed propeller-shaped chirality is preserved during this transformation. However, an excess of the monodentate co-ligand (ImH2/Zn2+ molar ratio of ∼1.7) alters the propeller-shaped assembly into a stacked dimer assembly [(ImH2) m (Im R 3Bz)2(Zn2+)3] (m = 4-6) with single-twist chirality. This switch alters the degree of enhancement and the circular dichroism (CD) pattern, suggesting a structural transition into a chiral object with a different shape. This architectural chirality transformation presents a new approach to forming dynamic coordination-assemblies, which have transformable geometric chiral structures.
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Affiliation(s)
- Yuki Imai
- Department of Applied Chemistry , Tokyo University of Science , 1-3, Kagurazaka, Shinjuku , Tokyo 162-8601 , Japan .
| | - Junpei Yuasa
- Department of Applied Chemistry , Tokyo University of Science , 1-3, Kagurazaka, Shinjuku , Tokyo 162-8601 , Japan .
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43
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Jiménez J, Moreno F, Maroto BL, Cabreros TA, Huy AS, Muller G, Bañuelos J, de la Moya S. Modulating ICT emission: a new strategy to manipulate the CPL sign in chiral emitters. Chem Commun (Camb) 2019; 55:1631-1634. [PMID: 30657143 PMCID: PMC7063650 DOI: 10.1039/c8cc09401b] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
A new strategy to manipulate the circularly polarized luminescence (CPL) handedness in chiral emitters, based on modulating the population of an emissive ICT state, is proposed. Such a strategy is particularly interesting for conformationally rigid and non-aggregating chiral organic emitters, opening up new perspectives for the development of CPL applications based on organic molecules.
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Affiliation(s)
- Josué Jiménez
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, Madrid, 28040, Spain.
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44
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Aggregation-amplified circularly polarized luminescence from axial chiral boron difluoride complexes. Sci China Chem 2019. [DOI: 10.1007/s11426-018-9385-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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45
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Zinna F, Arrico L, Di Bari L. Near-infrared circularly polarized luminescence from chiral Yb(iii)-diketonates. Chem Commun (Camb) 2019; 55:6607-6609. [DOI: 10.1039/c9cc03032h] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
We report a rare example of near infrared circularly polarized luminescence (NIR-CPL) in the 920–1050 nm region associated with the f–f transitions of Yb diketonate complexes bearing chiral ancillary ligands.
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Affiliation(s)
- Francesco Zinna
- Dipartimento di Chimica e Chimica Industriale
- Università di Pisa
- Pisa
- Italy
| | - Lorenzo Arrico
- Dipartimento di Chimica e Chimica Industriale
- Università di Pisa
- Pisa
- Italy
| | - Lorenzo Di Bari
- Dipartimento di Chimica e Chimica Industriale
- Università di Pisa
- Pisa
- Italy
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46
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Taniguchi T, Tsubouchi A, Imai Y, Yuasa J, Oguri H. Chiroptical Inversion of Europium(III) Complexes by Changing a Remote Stereogenic Center of a C2-Symmetric Bispyrrolidinoindoline Manifold. J Org Chem 2018; 83:15284-15296. [DOI: 10.1021/acs.joc.8b02550] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Tomoaki Taniguchi
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo 184-8588, Japan
| | - Akira Tsubouchi
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo 184-8588, Japan
| | - Yuki Imai
- Department of Applied Chemistry, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo 162-8601, Japan
| | - Junpei Yuasa
- Department of Applied Chemistry, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo 162-8601, Japan
| | - Hiroki Oguri
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo 184-8588, Japan
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47
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Kreidt E, Arrico L, Zinna F, Di Bari L, Seitz M. Circularly Polarised Luminescence in Enantiopure Samarium and Europium Cryptates. Chemistry 2018; 24:13556-13564. [DOI: 10.1002/chem.201802196] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 06/15/2018] [Indexed: 01/04/2023]
Affiliation(s)
- Elisabeth Kreidt
- Institute of Inorganic Chemistry; University of Tübingen; Auf der Morgenstelle 18 72076 Tübingen Germany
| | - Lorenzo Arrico
- Dipartimento di Chimica e Chimica Industriale; Università di Pisa; Via Moruzzi 13 56124 Pisa Italy
| | - Francesco Zinna
- Department of Organic Chemistry; University of Geneva; 30 quai Ernest Ansermet 1211 Geneva 4 Switzerland
| | - Lorenzo Di Bari
- Dipartimento di Chimica e Chimica Industriale; Università di Pisa; Via Moruzzi 13 56124 Pisa Italy
| | - Michael Seitz
- Institute of Inorganic Chemistry; University of Tübingen; Auf der Morgenstelle 18 72076 Tübingen Germany
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48
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Leonzio M, Bettinelli M, Arrico L, Monari M, Di Bari L, Piccinelli F. Circularly Polarized Luminescence from an Eu(III) Complex Based on 2-Thenoyltrifluoroacetyl-acetonate and a Tetradentate Chiral Ligand. Inorg Chem 2018; 57:10257-10264. [DOI: 10.1021/acs.inorgchem.8b01480] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Marco Leonzio
- Laboratorio Materiali Luminescenti, DB, Università di Verona and INSTM, UdR Verona, Strada Le Grazie 15, 37134 Verona, Italy
| | - Marco Bettinelli
- Laboratorio Materiali Luminescenti, DB, Università di Verona and INSTM, UdR Verona, Strada Le Grazie 15, 37134 Verona, Italy
| | - Lorenzo Arrico
- Dipartimento di Chimica e Chimica Industriale, via Moruzzi 13, 56124 Pisa, Italy
| | - Magda Monari
- Dipartimento di Chimica ‘‘G. Ciamician’’, Università di Bologna, Via Selmi 2, 40126 Bologna, Italy
| | - Lorenzo Di Bari
- Dipartimento di Chimica e Chimica Industriale, via Moruzzi 13, 56124 Pisa, Italy
| | - Fabio Piccinelli
- Laboratorio Materiali Luminescenti, DB, Università di Verona and INSTM, UdR Verona, Strada Le Grazie 15, 37134 Verona, Italy
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49
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Imai Y, Nakano Y, Kawai T, Yuasa J. A Smart Sensing Method for Object Identification Using Circularly Polarized Luminescence from Coordination-Driven Self-Assembly. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201803833] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Yuki Imai
- Department of Applied Chemistry; Tokyo University of Science; 1-3 Kagurazaka, Shinjuku-ku Tokyo 162-8601 Japan
| | - Yuka Nakano
- Graduate School of Materials Science; Nara Institute of Science and Technology; 8916-5 Takayama Ikoma Nara 630-0192 Japan
| | - Tsuyoshi Kawai
- Graduate School of Materials Science; Nara Institute of Science and Technology; 8916-5 Takayama Ikoma Nara 630-0192 Japan
| | - Junpei Yuasa
- Department of Applied Chemistry; Tokyo University of Science; 1-3 Kagurazaka, Shinjuku-ku Tokyo 162-8601 Japan
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50
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Imai Y, Nakano Y, Kawai T, Yuasa J. A Smart Sensing Method for Object Identification Using Circularly Polarized Luminescence from Coordination-Driven Self-Assembly. Angew Chem Int Ed Engl 2018; 57:8973-8978. [PMID: 29781199 DOI: 10.1002/anie.201803833] [Citation(s) in RCA: 120] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 05/02/2018] [Indexed: 01/24/2023]
Abstract
The potential use of circularly polarized luminescence for object identification in a sensor application is demonstrated. New luminescence probes using pyrene derivatives as sensor luminophores were developed. (R,R)-Im2 Py and (S,S)-Im2 Py contain two chiral imidazole moieties at 1,6-positions through ethynyl spacers (angle between spacers ca. 180°). The probe molecules spontaneously self-assemble into chiral stacks (P or M helicity) upon coordination to metal ions with tetrahedral coordination (Zn2+ ). The chiral probes display neither circular dichroism (CD) nor circularly polarized luminescence (CPL) without metal ions. However, (R,R)-Im2 Py and (S,S)-Im2 Py exhibit intense chiroptical activity (CD and CPL) upon self-assembly with Zn2+ ions. (R,R)-Im2 Py and (S,S)-Im2 Py with chemical stimuli-responsibility allow sensing using the CPL signal as detection output, enabling us to discriminate between a signal from the target analyte and that from non-target species.
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Affiliation(s)
- Yuki Imai
- Department of Applied Chemistry, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan
| | - Yuka Nakano
- Graduate School of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara, 630-0192, Japan
| | - Tsuyoshi Kawai
- Graduate School of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara, 630-0192, Japan
| | - Junpei Yuasa
- Department of Applied Chemistry, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan
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