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Han T, Ren J, Jiang S, Wang F, Tian Y. Achieving Circularly Polarized Phosphorescence through Noncovalent Clipping of Metallotweezers. Inorg Chem 2024; 63:11523-11530. [PMID: 38860921 DOI: 10.1021/acs.inorgchem.3c04269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2024]
Abstract
Circularly polarized phosphorescent materials, based on host-guest complexation, have received significant attention due to their outstanding emission performance in solutions. Recent studies have primarily focused on macrocyclic host-guest complexes. To broaden the scope of this research, there is a keen pursuit of developing novel chiral phosphorescent host-guest systems. Metallotweezers with square-planar d8 transition metal complexes emerge as promising candidates for achieving this objective. Specifically, metallotweezers, comprising platinum(II) terpyridine and gold(III) diphenylpyridine pincers on a diphenylpyridine scaffold, have been designed and synthesized. Due to the preorganization effect rendered by the diphenylpyridine scaffold, the resulting metallotweezers are capable of complexing with each other and forming quadruple stacking structures. The phosphorescent emission is enhanced owing to the synergistic rigidifying and shielding effects. Meanwhile, the steric effect of chiral (1R) pinene units on the platinum(II) terpyridine pincers results in a stereospecific twist for the quadruple stacking structures. Thus, the chirality transfers from the molecular to the supramolecular level. By a combination of phosphorescent enhancement and supramolecular chirality for the clipping complex, circularly polarized phosphorescent emission is achieved. Overall, noncovalent clipping of metallotweezers exemplified in the current study presents a novel and effective approach toward solution-processable circularly polarized phosphorescent materials.
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Affiliation(s)
- Tingting Han
- Key Laboratory of Environment-Friendly Polymeric Materials of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University, Hefei, Anhui 230601, China
| | - Jie Ren
- Key Laboratory of Environment-Friendly Polymeric Materials of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University, Hefei, Anhui 230601, China
| | - Sixun Jiang
- Key Laboratory of Precision and Intelligent Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Feng Wang
- Key Laboratory of Precision and Intelligent Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Yukui Tian
- Key Laboratory of Environment-Friendly Polymeric Materials of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University, Hefei, Anhui 230601, China
- School of Materials Science and Engineering, Anhui University, Hefei 230601, China
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2
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Gong ZL, Dan TX, Chen JC, Li ZQ, Yao J, Zhong YW. Boost the Circularly Polarized Phosphorescence of Chiral Organometallic Platinum Complexes by Hierarchical Assembly into Fibrillar Networks. Angew Chem Int Ed Engl 2024; 63:e202402882. [PMID: 38594208 DOI: 10.1002/anie.202402882] [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: 02/08/2024] [Revised: 04/06/2024] [Accepted: 04/09/2024] [Indexed: 04/11/2024]
Abstract
Circularly polarized luminescence (CPL)-active molecular materials have drawn increasing attention due to their promising applications for next-generation display and optoelectronic technologies. Currently, it is challenging to obtain CPL materials with both large luminescence dissymmetry factor (glum) and high quantum yield (Φ). A pair of enantiomeric N N C-type Pt(II) complexes (L/D)-1 modified with chiral Leucine methyl ester are presented herein. Though the solutions of these complexes are CPL-inactive, the spin-coated thin films of (L/D)-1 exhibit giantly-amplified circularly polarized phosphorescences with |glum| of 0.53 at 560 nm and Φair of ~50 %, as well as appealing circular dichroism (CD) signals with the maximum absorption dissymmetry factor |gabs| of 0.37-0.43 at 480 nm. This superior CPL performance benefits from the hierarchical formation of crystalline fibrillar networks upon spin coating. Comparative studies of another pair of chiral Pt(II) complexes (L/D)-2 with a symmetric N C N coordination mode suggest that the asymmetric N N C coordination of (L/D)-1 are favorable for the efficient exciton delocalization to amplify the CPL performance. Optical applications of the thin films of (L/D)-1 in CPL-contrast imaging and inducing CP light generation from achiral emitters and common light-emitting diode lamps have been successfully realized.
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Affiliation(s)
- Zhong-Liang Gong
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Photochemistry, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Ti-Xiong Dan
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Photochemistry, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100190, China
| | - Jian-Cheng Chen
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Photochemistry, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100190, China
| | - Zhong-Qiu Li
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Photochemistry, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Jiannian Yao
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Photochemistry, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100190, China
| | - Yu-Wu Zhong
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Photochemistry, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100190, China
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3
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Ikeshita M, Ma SC, Muller G, Naota T. Linker-dependent control of the chiroptical properties of polymethylene-vaulted trans-bis[(β-iminomethyl)naphthoxy]platinum(II) complexes. Dalton Trans 2024; 53:7775-7787. [PMID: 38619916 DOI: 10.1039/d4dt00273c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/17/2024]
Abstract
The effects of polymethylene bridges on the chiroptical properties of trans-bis[(β-iminomethyl)naphthoxy]platinum(II) platforms were examined both experimentally and theoretically using newly designed planar chiral Pt analogues (1) having three-dimensional superstructures. A series of optically pure polymethylene-vaulted Pt complexes (R)- and (S)-1 were synthesized and characterized with regard to the chiroptical behaviour of the trans-bis[(β-iminomethyl)naphthoxy]platinum(II) platforms. These complexes were found to exhibit structure-dependent chiroptical characteristics in solution, such that the absolute values of specific rotation, the circular dichroism dissymmetry factor (gabs) and the circularly polarized luminescence dissymmetry factor (glum) all increased upon shortening the polymethylene bridges. Density functional theory and time dependent density functional theory calculations were used to analyse vaulted and non-vaulted complexes, which demonstrated that the present linker-dependent chiroptical properties resulted from constraint-induced changes in the square planar Pt coordination centres rather than from chiral distortion along the coordination platforms.
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Affiliation(s)
- Masahiro Ikeshita
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, Machikaneyama, Toyonaka, Osaka 560-8531, Japan.
- Department of Applied Molecular Chemistry, College of Industrial Technology, Nihon University, Narashino, Chiba 275-8575, Japan.
| | - Shing Cho Ma
- Department of Chemistry, San José State University, One Washington Square, San José, California 95192-0101, USA.
| | - Gilles Muller
- Department of Chemistry, San José State University, One Washington Square, San José, California 95192-0101, USA.
| | - Takeshi Naota
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, Machikaneyama, Toyonaka, Osaka 560-8531, Japan.
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Morimoto T, Yoshida M, Sato-Tomita A, Nozawa S, Takayama J, Hiura S, Murayama A, Kobayashi A, Kato M. Vapor-Induced Assembly of a Platinum(II) Complex Loaded on Layered Double Hydroxide Nanoparticles. Chemistry 2023; 29:e202301993. [PMID: 37581259 DOI: 10.1002/chem.202301993] [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: 06/22/2023] [Revised: 08/12/2023] [Accepted: 08/14/2023] [Indexed: 08/16/2023]
Abstract
Controlled self-assembly of PtII complexes is key to the development of optical and stimuli-responsive materials, but designing and precisely controlling them is still difficult owing to weak intermolecular interactions. Herein, we report the successful water-vapor-induced assembly of an anionic PtII complex [Pt(CN)2 (ppy)]- (Hppy=2-phenylpyridine) electrostatically loaded onto cationically charged layered double hydroxide (LDH) nanoparticles consisting of Mg2+ and Al3+ ions. When the PtII complexes were densely loaded onto the LDH nanoparticles, the assembly was maintained, even in dilute aqueous media. In the case of sparse loading, the PtII complexes were loaded discretely in the dry state; however, when water vapor was adsorbed, the increased mobility of the PtII complexes led to their assembly on the LDH nanoparticles. The presence of water vapor led to a drastic change in luminescence from green to orange.
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Affiliation(s)
- Tamami Morimoto
- Department of Chemistry, Faculty of Science, Hokkaido University, North-10 West-8, Kita-ku, Sapporo, Hokkaido, 060-0810, Japan
| | - Masaki Yoshida
- Department of Applied Chemistry for Environment, School of Biological and Environmental Sciences, Kwansei Gakuin University, 1 Gakuen-Uegahara, Sanda, Hyogo, 669-1330, Japan
| | - Ayana Sato-Tomita
- Division of Biophysics, Department of Physiology, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi, 329-0498, Japan
| | - Shunsuke Nozawa
- Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki, 305-0801, Japan
| | - Junichi Takayama
- Faculty of Information Science and Technology, Hokkaido University, North-14 West-9, Kita-ku, Sapporo, Hokkaido, 060-0814, Japan
| | - Satoshi Hiura
- Faculty of Information Science and Technology, Hokkaido University, North-14 West-9, Kita-ku, Sapporo, Hokkaido, 060-0814, Japan
| | - Akihiro Murayama
- Faculty of Information Science and Technology, Hokkaido University, North-14 West-9, Kita-ku, Sapporo, Hokkaido, 060-0814, Japan
| | - Atsushi Kobayashi
- Department of Chemistry, Faculty of Science, Hokkaido University, North-10 West-8, Kita-ku, Sapporo, Hokkaido, 060-0810, Japan
| | - Masako Kato
- Department of Applied Chemistry for Environment, School of Biological and Environmental Sciences, Kwansei Gakuin University, 1 Gakuen-Uegahara, Sanda, Hyogo, 669-1330, Japan
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5
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Park G, Jeong DY, Yu SY, Park JJ, Kim JH, Yang H, You Y. Enhancing Circularly Polarized Phosphorescence via Integrated Top-Down and Bottom-Up Approach. Angew Chem Int Ed Engl 2023; 62:e202309762. [PMID: 37606233 DOI: 10.1002/anie.202309762] [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: 07/10/2023] [Revised: 08/11/2023] [Accepted: 08/22/2023] [Indexed: 08/23/2023]
Abstract
In the dynamic domain of chiroptical technologies, it is imperative to engineer emitters endowed with circularly polarized luminescence (CPL) properties. This research demonstrates an advancement by employing a combined top-down and bottom-up strategy for the simultaneous amplification of photoluminescence quantum yield (Φ) and the luminescence dissymmetry factor (glum ). Square-planar Pt(II) complexes form helical assemblies, driven by torsional strain induced by bis(nonyl) chains. Integration of chiral anions leads these assemblies to prefer distinct helical sense. This arrangement activates the metal-metal-to-ligand charge transfer (MMLCT) transition that is CPL-active, with Φ and |glum | observing an upswing contingent on the charge number and aryl substituents in chiral anions. Utilizing the soft-lithographic micromolding in capillaries technique, we could fabricate exquisitely-ordered, one-dimensional co-assemblies to achieve the metrics to Φ of 0.32 and |glum | of 0.13. Finally, our spectroscopic research elucidates the underlying mechanism for the dual amplification, making a significant stride in the advancement of CPL-active emitters.
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Affiliation(s)
- Gyurim Park
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Dong Yeon Jeong
- Division of Chemical Engineering and Materials Science, Ewha Womans University, Seoul, 03760, Republic of Korea
| | - Seung Yeon Yu
- Division of Chemical Engineering and Materials Science, Ewha Womans University, Seoul, 03760, Republic of Korea
| | - Jong Jin Park
- Department of Molecular Science and Technology, Ajou University, Suwon, 16499, Republic of Korea
| | - Jong H Kim
- Department of Molecular Science and Technology, Ajou University, Suwon, 16499, Republic of Korea
| | - Hoichang Yang
- Department of Chemical Engineering, Inha University, Incheon, 22212, Republic of Korea
| | - Youngmin You
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul, 03722, Republic of Korea
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6
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Tauchi D, Koida T, Nojima Y, Hasegawa M, Mazaki Y, Inagaki A, Sugiura KI, Nagaya Y, Tsubaki K, Shiga T, Nagata Y, Nishikawa H. Aggregation-induced circularly polarized phosphorescence of Pt(II) complexes with an axially chiral BINOL ligand. Chem Commun (Camb) 2023; 59:4004-4007. [PMID: 36917013 DOI: 10.1039/d2cc06198h] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
Abstract
A pair of chiral Pt(II) complexes coordinated by simple BINOL and bipyridine ligands displaying aggregation-induced phosphorescence and circularly polarized luminescence were characterized by X-ray crystallography and absorption and emission spectroscopies. The emission of the powder sample was reddish whereas the thin film dispersed in PMMA (fPf = 1 wt%) exhibited a white emission.
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Affiliation(s)
- Daiki Tauchi
- Graduate School of Science and Engineering, Ibaraki University, 2-1-1 Bunkyo, Mito, Ibaraki 310-8512, Japan.
| | - Taiki Koida
- Graduate School of Science and Engineering, Ibaraki University, 2-1-1 Bunkyo, Mito, Ibaraki 310-8512, Japan.
| | - Yuki Nojima
- Graduate School of Science, Kitasato University, Kanagawa 252-0373, Japan
| | - Masahi Hasegawa
- Graduate School of Science, Kitasato University, Kanagawa 252-0373, Japan
| | - Yasuhiro Mazaki
- Graduate School of Science, Kitasato University, Kanagawa 252-0373, Japan
| | - Akiko Inagaki
- Faculty of Science and Technology, Seikei University, Tokyo, 180-8633, Japan
| | - Ken-Ichi Sugiura
- Graduate School of Science, Tokyo Metropolitan University, Tokyo, 192-0397, Japan
| | - Yuki Nagaya
- Graduate School of Life and Environmental Science, Kyoto Prefectural University, Kyoto 606-8522, Japan
| | - Kazunori Tsubaki
- Graduate School of Life and Environmental Science, Kyoto Prefectural University, Kyoto 606-8522, Japan
| | - Takuya Shiga
- Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba 305-8577, Japan
| | - Yuuya Nagata
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Hokkaido 001-0021, Japan
| | - Hiroyuki Nishikawa
- Graduate School of Science and Engineering, Ibaraki University, 2-1-1 Bunkyo, Mito, Ibaraki 310-8512, Japan.
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7
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Ren J, Jiang S, Han T, Wu S, Tian Y, Wang F. Dual supramolecular chirogenesis based on platinum(II) metallotweezers. Chem Commun (Camb) 2023; 59:744-747. [PMID: 36541365 DOI: 10.1039/d2cc05787e] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Optically active platinum(II) metallotweezers demonstrate both self-complexation and host-guest complexation capabilities, leading to two distinct supramolecular chirogenic signals in the visible region.
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Affiliation(s)
- Jie Ren
- Institutes of Physical Science and Information Technology, Anhui University, Hefei, Anhui, 230601, China.
| | - Sixun Jiang
- Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China.
| | - Tingting Han
- Institutes of Physical Science and Information Technology, Anhui University, Hefei, Anhui, 230601, China.
| | - Shuai Wu
- Institutes of Physical Science and Information Technology, Anhui University, Hefei, Anhui, 230601, China.
| | - Yukui Tian
- Institutes of Physical Science and Information Technology, Anhui University, Hefei, Anhui, 230601, China. .,School of Materials Science and Engineering, Anhui University, Hefei, 230601, China
| | - Feng Wang
- Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China.
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8
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Maeda T, Mori T, Ikeshita M, Ma SC, Muller G, Ariga K, Naota T. Vortex Flow-controlled Circularly Polarized Luminescence of Achiral Pt(II) Complex Aggregates Assembled at the Air-Water Interface. SMALL METHODS 2022; 6:e2200936. [PMID: 36287093 DOI: 10.1002/smtd.202200936] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 09/20/2022] [Indexed: 05/27/2023]
Abstract
Circularly polarized luminescence (CPL) has been researched for various applications by control of characteristics such as chirality and magnitude. Supramolecular chirality has been prepared by vortex motion as a mechanical stimulus; however, CPL has yet to be controlled precisely and reproducibly. In this work, the first precise control of CPL under vortex flow conditions at an air-water interface is reported. The supramolecular chirality of aggregates consisting of an achiral trans-bis(salicylaldiminato)Pt(II) complex bearing hexadecyl chains is induced and controlled with vortex flow at the air-water interface, whereas the complex naturally forms an achiral amorphous solid with non-chiroptical properties under non-vortex conditions. The CPL direction and magnitude (glum value) of the Pt(II) complex aggregates can be adjusted precisely according to the vortex conditions, including the rotatory direction and flow rate. Vortex-flow-induced emission enhancement is also observed upon an increase in the rate of the vortex flow.
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Affiliation(s)
- Takatoshi Maeda
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka, 560-8531, Japan
| | - Taizo Mori
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), Tsukuba, Ibaraki, 305-0044, Japan
- Department of Advanced Materials Science, Graduate School of Frontier Science, The University of Tokyo, Kashiwa, Chiba, 277-8561, Japan
- Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba, 277-8581, Japan
| | - Masahiro Ikeshita
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka, 560-8531, Japan
| | - Shing Cho Ma
- Department of Chemistry, San José State University, San José, California, 95192-0101, USA
| | - Gilles Muller
- Department of Chemistry, San José State University, San José, California, 95192-0101, USA
| | - Katsuhiko Ariga
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), Tsukuba, Ibaraki, 305-0044, Japan
- Department of Advanced Materials Science, Graduate School of Frontier Science, The University of Tokyo, Kashiwa, Chiba, 277-8561, Japan
| | - Takeshi Naota
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka, 560-8531, Japan
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Zhang HH, Jing J, Xu G, Song YX, Wu SX, Chen XH, Zhang DS, Zhang XP, Shi ZF. Circularly polarized luminescence of pinene-modified tetradentate platinum(II) enantiomers containing fused 5/6/6 metallocycles. Heliyon 2022; 8:e11358. [PMID: 36387510 PMCID: PMC9649974 DOI: 10.1016/j.heliyon.2022.e11358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 10/12/2022] [Accepted: 10/27/2022] [Indexed: 11/06/2022] Open
Abstract
In this study, a couple of tetradentate Pt(II) enantiomers ((−)-1 and (+)-1) and a couple of tetradentate Pt(IV) enantiomers ((−)-2 and (+)-2) containing fused 5/6/6 metallocycles have been synthesized by controlling reaction conditions. Two valence forms could transform into each other through mild chemical oxidants and reductants. Single-crystal X-ray diffraction confirms the structures of (−)-1 and (−)-2. The coordination sphere of the Pt(II) cation in (−)-1 displays a distorted square-planar geometry and a platinum centroid helix chirality. In contrast, the structure of (−)-2 reveals a distorted octahedral geometry. The solution and the solid of (−)-1 are highly luminescent. Complex (−)-1 shows a prominent aggregation-induced emission enhancement (AIEE) behavior in DMSO/water solution with emission quantum yield (Φem) up to 73.2%. Furthermore, highly phosphorescent Pt(II) enantiomers exhibit significant circularly polarized luminescence (CPL) with a dissymmetry factor (glum) of order 10−3 in CH2Cl2 solutions at room temperature. Symmetrically appreciable CPL signals are observed for the enantiomers (−)-1 and (+)-1.
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Jing J, Xu G, Zhang HH, Chen XH, Zhang DS, Han LZ, Qi XW, Shi ZF, Zhang XP. Enhanced circularly polarized luminescence in fluoro-substituted N^C^N-coordinating platinum(II) complexes. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.121067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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12
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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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13
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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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14
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Liu C, Yang JC, Lam JWY, Feng HT, Tang BZ. Chiral assembly of organic luminogens with aggregation-induced emission. Chem Sci 2022; 13:611-632. [PMID: 35173927 PMCID: PMC8771491 DOI: 10.1039/d1sc02305e] [Citation(s) in RCA: 54] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 05/24/2021] [Indexed: 12/21/2022] Open
Abstract
Chirality is important to chemistry, biology and optoelectronic materials. The study on chirality has lasted for more than 170 years since its discovery. Recently, chiral materials with aggregation-induced emission (AIE) have attracted increasing interest because of their fascinating photophysical properties. In this review, we discussed the recent development of chiral materials with AIE properties, including their molecular structures, self-assembly and functions. Generally, the most effective strategy to design a chiral AIE luminogen (AIEgen) is to attach a chiral scaffold to an AIE-active fluorophore through covalent bonds. Moreover, some propeller-like or shell-like AIEgens without chiral units exhibit latent chirality upon mirror image symmetry breaking. The chirality of achiral AIEgens can also be induced by some optically active molecules through non-covalent interactions. The introduction of an AIE unit into chiral materials can enhance the efficiency of their circularly polarized luminescence (CPL) in the solid state and the dissymmetric factors of their helical architectures formed through self-assembly. Thus, highly efficient circularly polarized organic light-emitting diodes (CPOLEDs) with AIE characteristics are developed and show great potential in 3D displays. Chiral AIEgens are also widely utilized as "turn on" sensors for rapid enantioselective determination of chiral reagents. It is anticipated that the present review can entice readers to realize the importance of chirality and attract much more chemists to contribute their efforts to chirality and AIE study.
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Affiliation(s)
- Chenchen Liu
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Institute for Advanced Study and Department of Chemical and Biomedical Engineering, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong China
| | - Jun-Cheng Yang
- AIE Research Center, Shaanxi Key Laboratory of Phytochemistry, College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences Baoji 721013 China
| | - Jacky W Y Lam
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Institute for Advanced Study and Department of Chemical and Biomedical Engineering, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong China
| | - Hai-Tao Feng
- AIE Research Center, Shaanxi Key Laboratory of Phytochemistry, College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences Baoji 721013 China
| | - Ben Zhong Tang
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Institute for Advanced Study and Department of Chemical and Biomedical Engineering, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong China
- State Key Laboratory of Luminescent Materials and Devices, SCUT-HKUST Joint Research Institute, Center for Aggregation-Induced Emission China
- AIE Institute Guangzhou Development District Guangzhou 510530 China
- Shenzhen Institute of Aggregate Science and Technology, School of Science and Engineering, The Chinese University of Hong Kong Shenzhen Guangdong 518172 China
- Guangdong-Hong Kong-Macau Joint Laboratory of Optoelectronic and Magnetic Functional Materials China
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15
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Yoshida M, Hirao T, Haino T. Self-assembly of neutral platinum complexes controlled by thermal inputs. Chem Commun (Camb) 2022; 58:8356-8359. [DOI: 10.1039/d2cc02571j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this report, we describe the self-assembly behavior of neutral platinum complexes in toluene. The platinum complexes were seen to form two different types of assemblies depending on the preparation...
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16
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Gong Z, Dan T, Yao J, Zhong Y. Supramolecular Assembly and Circularly Polarized Phosphorescence of Tridentate Platinum‐Isocyanide Complexes Modified with a Chiral Leucine Derivative. CHEMPHOTOCHEM 2021. [DOI: 10.1002/cptc.202100239] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Zhong‐Liang Gong
- Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Photochemistry CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
| | - Ti‐Xiong Dan
- Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Photochemistry CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
- School of Chemilcal Sciences University of Chinese Academy of Sciences Beijing 100049 China
| | - Jiannian Yao
- Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Photochemistry CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
- School of Chemilcal Sciences University of Chinese Academy of Sciences Beijing 100049 China
| | - Yu‐Wu Zhong
- Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Photochemistry CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
- School of Chemilcal Sciences University of Chinese Academy of Sciences Beijing 100049 China
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17
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Basuyaux G, Amar A, Troufflard C, Boucekkine A, Métivier R, Raynal M, Moussa J, Bouteiller L, Amouri H. Cyclometallated Pt(II) Complexes Containing a Functionalized Bis‐Urea Alkynyl Ligand: Probing Aggregation Mediated by Hydrogen Bonds
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Pt⋅⋅⋅Pt and π−π Interactions. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Gaëtan Basuyaux
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire 4 place Jussieu 75005 Paris France
| | - Anissa Amar
- Laboratoire de Chimie et de Physique Quantiques Faculté des Sciences, U.M.M.T.O 15000 Tizi-Ouzou Algeria
| | - Claire Troufflard
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire 4 place Jussieu 75005 Paris France
| | - Abdou Boucekkine
- Univ. Rennes ISCR UMR 6226 CNRS Campus de Beaulieu 35042 Rennes Cedex France
| | - Rémi Métivier
- PPSM, ENS Paris-Saclay, CNRS Université Paris-Saclay 91190 Gif-sur-Yvette France
| | - Matthieu Raynal
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire 4 place Jussieu 75005 Paris France
| | - Jamal Moussa
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire 4 place Jussieu 75005 Paris France
| | - Laurent Bouteiller
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire 4 place Jussieu 75005 Paris France
| | - Hani Amouri
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire 4 place Jussieu 75005 Paris France
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18
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Ono Y, Hirao T, Haino T. Solvent-directed formation of helically twisted stacking constructs via self-assembly of tris(phenylisoxazolyl)benzene dimers. Org Biomol Chem 2021; 19:7165-7171. [PMID: 34369543 DOI: 10.1039/d1ob01277k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Ureido-pyrimidinone (UPy)-appended tris(phenylisoxazolyl)benzenes were synthesized. The UPy moieties of the tris(phenylisoxazolyl)benzenes stably formed self-complementary dimers in solution. The dimers self-assembled to form helically twisted stacking constructs in a process driven by π-π stacking interactions of UPy dimer moieties and dipole-dipole interactions of isoxazole units. Strong association affinity was seen within the stacking constructs compared with the previously reported isoxazole derivatives owing to the auxiliary π-π stacking interaction. Notably, tris(phenylisoxazolyl)benzenes showed an environmentally responsive nature. The absorption bands, emission intensities, and sizes of ensembles depended significantly on the mixing ratio of CHCl3 and methylcyclohexane (MCH). Additionally, sharp on-off switching phenomena were seen in their circular dichroism (CD) and circularly polarized luminescence (CPL) spectra in response to the mixing ratio of CHCl3 and MCH. CD and CPL were activated only at a certain mixing ratio of CHCl3/MCH, thus showing potential for the creation of molecular sensors.
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Affiliation(s)
- Yudai Ono
- Department of Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-3-1, Kagamiyama, Higashi-Hiroshima 739-8526, Japan.
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19
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20
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Yang QY, Zhang HH, Qi XW, Sun SS, Zhang DS, Han LZ, Zhang XP, Shi ZF. Mechanochromic luminescence properties of fluoro-substituted pinene-containing cyclometalated platinum(II) complexes with multiple triplet excited states. Dalton Trans 2021; 50:8938-8946. [PMID: 34109961 DOI: 10.1039/d1dt00848j] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The structure-mechanochromism relationship is explored with respect to packing patterns and corresponding intermolecular interactions that are affected by the number and location of -F. The distinct and reversible mechanochormic luminescence (Δλem up to ca. 90 nm) of yellow solids (-)-1-Yg, (-)-2-Yg, and (-)-3-Yg was displayed with a simultaneous crystal-to-amorphous transformation. The change of multiple triplet excited states accounted for the mechanochormic luminescence, and a switch from the 3π,π* monomer to the excimer/3MMLCT occurred in the grinding process. The mechanical force led to perturbation in the molecular packing, and aggregates with effective PtPt and π-π interactions were formed in the amorphous phase, leading to the variation of excited states. The mechanochromic luminescence could be reverted by dropping in CH2Cl2 and could be cycled multiple times without perceivable performance degradation. This work gives a reference for designing mechanochromic luminescent materials toward multicolor and multicomponent responses.
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Affiliation(s)
- Qian-Ying Yang
- College of Chemistry and Chemical Engineering, Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, Hainan Normal University, Haikou 571158, P.R. China.
| | - Hua-Hong Zhang
- College of Chemistry and Chemical Engineering, Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, Hainan Normal University, Haikou 571158, P.R. China.
| | - Xiao-Wei Qi
- College of Chemistry and Chemical Engineering, Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, Hainan Normal University, Haikou 571158, P.R. China.
| | - Shi-Shu Sun
- College of Chemistry and Chemical Engineering, Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, Hainan Normal University, Haikou 571158, P.R. China.
| | - Da-Shuai Zhang
- College of Chemistry and Chemical Engineering, Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, Hainan Normal University, Haikou 571158, P.R. China.
| | - Li-Zhi Han
- College of Chemistry and Chemical Engineering, Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, Hainan Normal University, Haikou 571158, P.R. China.
| | - Xiao-Peng Zhang
- College of Chemistry and Chemical Engineering, Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, Hainan Normal University, Haikou 571158, P.R. China.
| | - Zai-Feng Shi
- College of Chemistry and Chemical Engineering, Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, Hainan Normal University, Haikou 571158, P.R. China.
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21
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Yoshida M, Hirao T, Haino T. Self-assembly of neutral platinum complexes possessing chiral hydrophilic TEG chains. Org Biomol Chem 2021; 19:5303-5311. [PMID: 33969859 DOI: 10.1039/d1ob00492a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Neutral platinum complexes that possess chiral triethylene glycol (TEG) moieties were synthesized. The platinum complexes formed helically twisted stacked assemblies in chloroform and toluene, which were studied by 1H NMR, UV/vis spectroscopy, and emission spectroscopy. On the other hand, emissive micellar aggregates were observed in a THF/water mixed solvent. Dynamic light scattering (DLS) experiments revealed that micellar aggregates with a diameter (d) of ≈100 nm emitted strong light, whereas the monomeric form and large aggregates (d > 500 nm) did not show luminescence efficiently. Furthermore, the micellar aggregates were twisted chirally, where the twisted direction was determined by the chirality of the TEG moieties. The assemblies were observed to be solvent responsive, which allows for the modulation of the nanostructure by changing the solvent polarity.
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Affiliation(s)
- Masaya Yoshida
- Department of Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan.
| | - Takehiro Hirao
- Department of Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan.
| | - Takeharu Haino
- Department of Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan.
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22
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Ono Y, Hirao T, Ikeda T, Haino T. Self-Assembling Behavior and Chiroptical Properties of Carbazole-Cored Phenyl Isoxazolyl Benzenes. J Org Chem 2021; 86:5499-5505. [DOI: 10.1021/acs.joc.0c03005] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Yudai Ono
- Department of Chemistry, Graduate School of Science, Hiroshima University, 1-3-1, Kagamiyama, Higashi-Hiroshima 739-8526, Japan
| | - Takehiro Hirao
- Department of Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-3-1, Kagamiyama, Higashi-Hiroshima 739-8526, Japan
| | - Toshiaki Ikeda
- Department of Chemistry, Faculty of Science, Tokai University, 4-1-1, Kitakaname, Hiratsuka, Kanagawa 259-1292, Japan
| | - Takeharu Haino
- Department of Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-3-1, Kagamiyama, Higashi-Hiroshima 739-8526, Japan
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23
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Sivchik V, Kochetov A, Eskelinen T, Kisel KS, Solomatina AI, Grachova EV, Tunik SP, Hirva P, Koshevoy IO. Modulation of Metallophilic and π-π Interactions in Platinum Cyclometalated Luminophores with Halogen Bonding. Chemistry 2021; 27:1787-1794. [PMID: 32970903 DOI: 10.1002/chem.202003952] [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: 08/27/2020] [Revised: 09/23/2020] [Indexed: 12/11/2022]
Abstract
Luminescent cyclometalated complexes [M(C^N^N)CN] (M=Pt, Pd; HC^N^N=pyridinyl- (M=Pt 1, Pd 5), benzyltriazolyl- (M=Pt 2), indazolyl- (M=Pt 3, Pd 6), pyrazolyl-phenylpyridine (M=Pt 4)) decorated with cyanide ligand, have been explored as nucleophilic building blocks for the construction of halogen-bonded (XB) adducts using IC6 F5 as an XB donor. The negative electrostatic potential of the CN group afforded CN⋅⋅⋅I noncovalent interactions for platinum complexes 1-3; the energies of XB contacts are comparable to those of metallophilic bonding according to QTAIM analysis. Embedding the chromophore units into XB adducts 1-3⋅⋅⋅IC6 F5 has little effect on the charge distribution, but strongly affects Pt⋅⋅⋅Pt bonding and π-stacking, which lead to excited states of MMLCT (metal-metal-to-ligand charge transfer) origin. The energies of these states and the photoemissive properties of the crystalline materials are primarily determined by the degree of aggregation of the luminophores via metal-metal interactions. The adduct formation depends on the nature of the metal and the structure of the metalated ligand, the variation of which can yield dynamic XB-supported systems, exemplified by thermally regulated transition 3↔3⋅⋅⋅IC6 F5 .
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Affiliation(s)
- Vasily Sivchik
- Department of Chemistry, University of Eastern Finland, 80101, Joensuu, Finland
| | - Aleksandr Kochetov
- Department of Chemistry, University of Eastern Finland, 80101, Joensuu, Finland
| | - Toni Eskelinen
- Department of Chemistry, University of Eastern Finland, 80101, Joensuu, Finland
| | - Kristina S Kisel
- Institute of Chemistry, St. Petersburg State University, Universitetskiy pr. 26, Petergof, St. Petersburg, Russia
| | - Anastasia I Solomatina
- Institute of Chemistry, St. Petersburg State University, Universitetskiy pr. 26, Petergof, St. Petersburg, Russia
| | - Elena V Grachova
- Institute of Chemistry, St. Petersburg State University, Universitetskiy pr. 26, Petergof, St. Petersburg, Russia
| | - Sergey P Tunik
- Institute of Chemistry, St. Petersburg State University, Universitetskiy pr. 26, Petergof, St. Petersburg, Russia
| | - Pipsa Hirva
- Department of Chemistry, University of Eastern Finland, 80101, Joensuu, Finland
| | - Igor O Koshevoy
- Department of Chemistry, University of Eastern Finland, 80101, Joensuu, Finland
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24
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Handedness-inverted polymorphic helical assembly and circularly polarized luminescence of chiral platinum complexes. Sci China Chem 2021. [DOI: 10.1007/s11426-020-9911-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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25
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Yin Y, Chen Z, Han Y, Liao R, Wang F. Chiral supramolecular polymerization of dicyanostilbenes with emergent circularly polarized luminescence behavior. Org Chem Front 2021. [DOI: 10.1039/d1qo00756d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A novel type of circularly polarized luminescence (CPL) active systems have been constructed via chiral supramolecular polymerization of dicyanostilbene-based monomers.
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Affiliation(s)
- Yueru Yin
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, PR China
| | - Ze Chen
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, PR China
| | - Yifei Han
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, PR China
| | - Rui Liao
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, PR China
| | - Feng Wang
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, PR China
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26
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Iwamura M, Fukui A, Nozaki K, Kuramochi H, Takeuchi S, Tahara T. Coherent Vibration and Femtosecond Dynamics of the Platinum Complex Oligomers upon Intermolecular Bond Formation in the Excited State. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202011813] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Munetaka Iwamura
- Graduate School of Science and Engineering University of Toyama 3190 Gofuku Toyama 930-8555 Japan
| | - Airi Fukui
- Graduate School of Science and Engineering University of Toyama 3190 Gofuku Toyama 930-8555 Japan
| | - Koichi Nozaki
- Graduate School of Science and Engineering University of Toyama 3190 Gofuku Toyama 930-8555 Japan
| | - Hikaru Kuramochi
- Molecular Spectroscopy Laboratory RIKEN 2-1 Hirosawa Wako 351-0198 Japan
- Ultrafast Spectroscopy Research Team RIKEN Center for Advanced Photonics (RAP) 2-1 Hirosawa Wako 351-0198 Japan
- JST PRESTO 4-1-8 Honcho Kawaguchi 332-0012 Japan
- Current address: Research Center of Integrative Molecular Systems (CIMoS) Institute for Molecular Science 38 Nishigo-Naka, Myodaiji Okazaki 444-8585 Japan
| | - Satoshi Takeuchi
- Molecular Spectroscopy Laboratory RIKEN 2-1 Hirosawa Wako 351-0198 Japan
- Ultrafast Spectroscopy Research Team RIKEN Center for Advanced Photonics (RAP) 2-1 Hirosawa Wako 351-0198 Japan
- Current address: Graduate School of Material Science University of Hyogo 3-2-1 Kohto Kamigori Hyogo 678-1297 Japan
| | - Tahei Tahara
- Molecular Spectroscopy Laboratory RIKEN 2-1 Hirosawa Wako 351-0198 Japan
- Ultrafast Spectroscopy Research Team RIKEN Center for Advanced Photonics (RAP) 2-1 Hirosawa Wako 351-0198 Japan
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27
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Coherent Vibration and Femtosecond Dynamics of the Platinum Complex Oligomers upon Intermolecular Bond Formation in the Excited State. Angew Chem Int Ed Engl 2020; 59:23154-23161. [DOI: 10.1002/anie.202011813] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Indexed: 11/07/2022]
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28
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Yuan M, Zhang X, Han Y, Wang F, Wang F. Organoplatinum(II)-Based Self-Complementary Molecular Tweezers with Guest-Induced Fluorochromic Behaviors. Inorg Chem 2020; 59:14134-14140. [PMID: 32921054 DOI: 10.1021/acs.inorgchem.0c01899] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Cyclometalated organoplatinum(II) complexes have aroused tremendous interests due to their square-planar geometry and intriguing photophysics. To access multiplatinum systems with more than three cyclometalated organoplatinum(II) units, the traditional covalent synthetic approach suffers from tedious multistep reactions with low overall yield. In comparison, supramolecular assembly can be regarded as an effective strategy toward multiplatinum(II) architectures. Despite the progresses achieved, it is still challenging to fabricate well-ordered supramolecular assemblies with precise numbers of organoplatinum(II) units. Herein, self-complementary dimerized molecular tweezers with four cyclometalated platinum(II) units have been successfully constructed by taking advantage of dual roles of the incorporated 2,2':6',2''-terpyridine unit (serving as the rigid spacer and encapsulated guest). Furthermore, addition of electron-rich carbazoles leads to conversion of the self-complementary structure to molecular tweezer/guest complexes. Such a structural transformation gives rise to the concomitant luminescent color change. The unique guest-induced fluorochromic phenomena, which are seldom reported in the previous host-guest systems, would be promising as tunable luminescent and ratiometric sensing materials.
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Affiliation(s)
- Ming Yuan
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China.,Department of Chemistry, BengBu Medical College, Bengbu 233030, P.R. China
| | - Xiaolong Zhang
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Yifei Han
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Fan Wang
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Feng Wang
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
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29
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Sang Y, Han J, Zhao T, Duan P, Liu M. Circularly Polarized Luminescence in Nanoassemblies: Generation, Amplification, and Application. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1900110. [PMID: 31394014 DOI: 10.1002/adma.201900110] [Citation(s) in RCA: 444] [Impact Index Per Article: 111.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Revised: 05/13/2019] [Indexed: 05/22/2023]
Abstract
Currently, the development of circularly polarized luminescent (CPL) materials has drawn extensive attention due to the numerous potential applications in optical data storage, displays, backlights in 3D displays, and so on. While the fabrication of CPL-active materials generally requires chiral luminescent molecules, the introduction of the "self-assembly" concept offers a new perspective in obtaining the CPL-active materials. Following this approach, various self-assembled materials, including organic-, inorganic-, and hybrid systems can be endowed with CPL properties. Benefiting from the advantages of self-assembly, not only chiral molecules, but also achiral species, as well as inorganic nanoparticles have potential to be self-assembled into chiral nanoassemblies showing CPL activity. In addition, the dissymmetry factor, an important parameter of CPL materials, can be enhanced through various pathways of self-assembly. Here, the present status and progress of self-assembled nanomaterials with CPL activity are reviewed. An overview of the key factors in regulating chiral emission materials at the supramolecular level will largely boost their application in multidisciplinary fields.
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Affiliation(s)
- Yutao Sang
- 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, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Jianlei Han
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, Division of Nanophotonics, National Center for Nanoscience and Technology (NCNST), No. 11 ZhongGuanCun BeiYiTiao, Beijing, 100190, P. R. China
| | - Tonghan Zhao
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, Division of Nanophotonics, National Center for Nanoscience and Technology (NCNST), No. 11 ZhongGuanCun BeiYiTiao, Beijing, 100190, P. R. China
| | - Pengfei Duan
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, Division of Nanophotonics, National Center for Nanoscience and Technology (NCNST), No. 11 ZhongGuanCun BeiYiTiao, Beijing, 100190, P. R. China
| | - Minghua Liu
- 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, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, Division of Nanophotonics, National Center for Nanoscience and Technology (NCNST), No. 11 ZhongGuanCun BeiYiTiao, Beijing, 100190, P. R. China
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30
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Lu N, Gao X, Pan M, Zhao B, Deng J. Aggregation-Induced Emission-Active Chiral Helical Polymers Show Strong Circularly Polarized Luminescence in Thin Films. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c00638] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Na Lu
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xiaobin Gao
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Ming Pan
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Biao Zhao
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, State Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jianping Deng
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
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31
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Doistau B, Jiménez JR, Piguet C. Beyond Chiral Organic (p-Block) Chromophores for Circularly Polarized Luminescence: The Success of d-Block and f-Block Chiral Complexes. Front Chem 2020; 8:555. [PMID: 32850617 PMCID: PMC7399180 DOI: 10.3389/fchem.2020.00555] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 05/29/2020] [Indexed: 12/16/2022] Open
Abstract
Chiral molecules are essential for the development of advanced technological applications in spintronic and photonic. The best systems should produce large circularly polarized luminescence (CPL) as estimated by their dissymmetry factor (g lum), which can reach the maximum values of -2 ≤ g lum ≤ 2 when either pure right- or left-handed polarized light is emitted after standard excitation. For matching this requirement, theoretical considerations indicate that optical transitions with large magnetic and weak electric transition dipole moments represent the holy grail of CPL. Because of their detrimental strong and allowed electric dipole transitions, popular chiral emissive organic molecules display generally moderate dissymmetry factors (10-5 ≤ g lum ≤ 10-3). However, recent efforts in this field show that g lum can be significantly enhanced when the chiral organic activators are part of chiral supramolecular assemblies or of liquid crystalline materials. At the other extreme, chiral EuIII- and SmIII-based complexes, which possess intra-shell parity-forbidden electric but allowed magnetic dipole transitions, have yielded the largest dissymmetry factor reported so far with g lum ~ 1.38. Consequently, 4f-based metal complexes with strong CPL are currently the best candidates for potential technological applications. They however suffer from the need for highly pure samples and from considerable production costs. In this context, chiral earth-abundant and cheap d-block metal complexes benefit from a renewed interest according that their CPL signal can be optimized despite the larger covalency displayed by d-block cations compared with 4f-block analogs. This essay thus aims at providing a minimum overview of the theoretical aspects rationalizing circularly polarized luminescence and their exploitation for the design of chiral emissive metal complexes with strong CPL. Beyond the corroboration that f-f transitions are ideal candidates for generating large dissymmetry factors, a special attention is focused on the recent attempts to use chiral CrIII-based complexes that reach values of g lum up to 0.2. This could pave the way for replacing high-cost rare earths with cheap transition metals for CPL applications.
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Affiliation(s)
- Benjamin Doistau
- Department of Inorganic and Analytical Chemistry, University of Geneva, Geneva, Switzerland
| | - Juan-Ramón Jiménez
- Department of Inorganic and Analytical Chemistry, University of Geneva, Geneva, Switzerland
| | - Claude Piguet
- Department of Inorganic and Analytical Chemistry, University of Geneva, Geneva, Switzerland
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Han Y, Gao Z, Wang C, Zhong R, Wang F. Recent progress on supramolecular assembly of organoplatinum(II) complexes into long-range ordered nanostructures. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2020.213300] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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33
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Han J, Lu H, Xu Y, Guo S, Zheng X, Tao P, Liu S, Zhang X, Zhao Q. Concentration-dependent circularly polarized luminescence of chiral cyclometalated platinum(II) complexes for electroluminescence. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2020.121240] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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34
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Yang QY, Zhang HH, Han XL, Weng SD, Chen Y, Wu JL, Han LZ, Zhang XP, Shi ZF. Enhanced Circularly Polarized Luminescence Activity in Chiral Platinum(II) Complexes With Bis- or Triphenylphosphine Ligands. Front Chem 2020; 8:303. [PMID: 32391328 PMCID: PMC7193082 DOI: 10.3389/fchem.2020.00303] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 03/26/2020] [Indexed: 12/17/2022] Open
Abstract
Distinct circularly polarized luminescence (CPL) activity was observed in chiral (C∧N∧N)Pt(II) [(C∧N∧N) = 4,5-pinene-6'-phenyl-2,2'-bipyridine] complexes with bis- or triphenylphosphine ligands. Compared to the pseudo-square-planar geometry of chiral (C∧N∧N)Pt(II) complexes with chloride, phenylacetylene (PPV) and 2,6-dimethylphenyl isocyanide (Dmpi) ligands, the coordination configuration around the Pt(II) nucleus of chiral (C∧N∧N)Pt(II) complexes with bulk phosphine ligands is far more distorted. The geometry is straightforwardly confirmed by X-ray crystallography. The phosphines' participation enhanced the CPL signal of Pt(II) complexes profoundly, with the dissymmetry factor (g lum) up to 10-3. The distorted structures and enhanced chiroptical signals were further confirmed by time-dependent density functional theory (TD-DFT) calculations.
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Affiliation(s)
- Qian-Ying Yang
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, China
| | - Hua-Hong Zhang
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, China
| | - Xue-Ling Han
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, China
| | - Shi-Dao Weng
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, China
| | - Yuan Chen
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, China
| | - Jia-Li Wu
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, China
| | - Li-Zhi Han
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, China
| | - Xiao-Peng Zhang
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, China
| | - Zai-Feng Shi
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, China
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35
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Haino T, Hirao T. Supramolecular Polymerization and Functions of Isoxazole Ring Monomers. CHEM LETT 2020. [DOI: 10.1246/cl.200031] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Takeharu Haino
- Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan
| | - Takehiro Hirao
- Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan
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36
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Jiang Z, Wang J, Gao T, Ma J, Liu Z, Chen R. Rational Design of Axially Chiral Platinabinaphthalenes with Aggregation-Induced Emission for Red Circularly Polarized Phosphorescent Organic Light-Emitting Diodes. ACS APPLIED MATERIALS & INTERFACES 2020; 12:9520-9527. [PMID: 31990175 DOI: 10.1021/acsami.9b20568] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Circularly polarized luminescent (CPL) materials have received a lot of interest due to their potential applications in next-generation displays. However, the development of easily accessible red circularly polarized phosphorescent emitters for practical organic light-emitting diodes fabrication remains a grand challenge. In this paper, we report a new family of CPL-active platinum complexes based on the binaphthalene chiral platform. These axially chiral platinabinaphthalenes were facile synthesized by directly incorporating platinum(II) into the π-conjugated backbone of a commercially available enantiopure binaphthalene derivate. These complexes exhibit aggregation-induced circularly polarized phosphorescence enhancement with high quantum yields of up to 66% and luminescence dissymmetry factors of around 2.6 × 10-3. Moreover, solution-processable circularly polarized organic light-emitting diodes (CPOLEDs) using these complexes as emitters show good performance with the maximum luminance of up to 3500 cd m-2 and dissymmetry factor values of around 1.0 × 10-3. These findings by the rational design of axially chiral platinabinaphthalenes are important for the development of high-performance CPL complexes for CPOLEDs.
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Affiliation(s)
- Zhiyong Jiang
- College of Materials Science and Engineering , Nanjing Forestry University , 159 Longpan Road , Xuanwu District, Nanjing 210037 , China
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials , Nanjing Tech University (NanjingTech) , Nanjing 211816 , China
| | - Jun Wang
- Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) , Nanjing University of Posts & Telecommunications , 9 Weyuan Road , Nanjing 210023 , China
| | - Tingting Gao
- College of Materials Science and Engineering , Nanjing Forestry University , 159 Longpan Road , Xuanwu District, Nanjing 210037 , China
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials , Nanjing Tech University (NanjingTech) , Nanjing 211816 , China
| | - Jianping Ma
- School of Chemistry and Chemical Engineering , Shandong Normal University , Jinan 250014 , China
| | - Zhipeng Liu
- College of Materials Science and Engineering , Nanjing Forestry University , 159 Longpan Road , Xuanwu District, Nanjing 210037 , China
| | - Runfeng Chen
- Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) , Nanjing University of Posts & Telecommunications , 9 Weyuan Road , Nanjing 210023 , China
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37
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Hisano N, Hirao T, Haino T. A dual redox-responsive supramolecular polymer driven by molecular recognition between bisporphyrin and trinitrofluorenone. Chem Commun (Camb) 2020; 56:7553-7556. [DOI: 10.1039/d0cc02474k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A dual redox-responsive supramolecular polymer driven by molecular recognition between bisporphyrin (bisPor) and trinitrofluorenone (TNF) has been developed.
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Affiliation(s)
- Naoyuki Hisano
- Graduate School of Advanced Science and Engineering
- Hiroshima University
- Hiroshima 739-8562
- Japan
| | - Takehiro Hirao
- Graduate School of Advanced Science and Engineering
- Hiroshima University
- Hiroshima 739-8562
- Japan
| | - Takeharu Haino
- Graduate School of Advanced Science and Engineering
- Hiroshima University
- Hiroshima 739-8562
- Japan
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38
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Hirao T, Tsukamoto H, Ikeda T, Haino T. AIE-active micelles formed by self-assembly of an amphiphilic platinum complex possessing isoxazole moieties. Chem Commun (Camb) 2020; 56:1137-1140. [DOI: 10.1039/c9cc07819c] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
We report a luminescent micelle that is prepared through the self-assembly of an amphiphilic, neutral Pt(ii) complex with isoxazole moieties in THF/water on account of its aggregation-induced emission (AIE) property.
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Affiliation(s)
- Takehiro Hirao
- Department of Chemistry
- Graduate School of Science
- Hiroshima University
- Higashi-Hiroshima
- Japan
| | - Hidemi Tsukamoto
- Department of Chemistry
- Graduate School of Science
- Hiroshima University
- Higashi-Hiroshima
- Japan
| | - Toshiaki Ikeda
- Department of Chemistry
- Faculty of Science
- Tokai University
- Hiratsuka
- Japan
| | - Takeharu Haino
- Department of Chemistry
- Graduate School of Science
- Hiroshima University
- Higashi-Hiroshima
- Japan
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39
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Usuki T, Uchida H, Omoto K, Yamanoi Y, Yamada A, Iwamura M, Nozaki K, Nishihara H. Enhancement of the Photofunction of Phosphorescent Pt(II) Cyclometalated Complexes Driven by Substituents: Solid-State Luminescence and Circularly Polarized Luminescence. J Org Chem 2019; 84:10749-10756. [PMID: 31366198 DOI: 10.1021/acs.joc.9b01285] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Ligand functionalization is an attractive strategy for enhancing the performance of metal-based phosphorescent emitters. Here, we report the synthesis and characterization of cyclometalated Pt(II) complexes Pt3 and Pt4 containing organosilyl-substituted (2-(2-thienyl)pyridine) ligands and compare their properties with those of Pt1 (no substituent) and Pt2 (organocarbon substituent). The photophysical characteristics of these molecules, including their absorption and phosphorescence spectra, phosphorescence quantum yield and lifetime, were investigated. The molecular structures were revealed by X-ray diffraction analysis. Under UV light irradiation, Pt2-Pt4 emitted intense orange phosphorescence in the solid state because of the bulkiness of their side chains (up to ΦP: 0.49). Optically pure (-)-(S)Si-Pt4 and (+)-(R)Si-Pt4 were prepared using the optically active ligands (+)-L4 and (-)-L4, respectively. The chiroptical properties of (+)-(R)Si-Pt4, which has an asymmetric silicon atom, were investigated. Circular dichroism and circularly polarized luminescence measurements showed that these structural motifs are suitable for applications in chiroptical phosphorescent materials.
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Affiliation(s)
- Tsukasa Usuki
- Department of Chemistry, School of Science , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku, Tokyo 113-0033 , Japan
| | - Hikaru Uchida
- Department of Chemistry, School of Science , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku, Tokyo 113-0033 , Japan
| | - Kenichiro Omoto
- Department of Chemistry, School of Science , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku, Tokyo 113-0033 , Japan
| | - Yoshinori Yamanoi
- Department of Chemistry, School of Science , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku, Tokyo 113-0033 , Japan
| | - Ayano Yamada
- Graduate School of Science and Engineering , University of Toyama , 3190 Gofuku , Toyama 930-8555 , Japan
| | - Munetaka Iwamura
- Graduate School of Science and Engineering , University of Toyama , 3190 Gofuku , Toyama 930-8555 , Japan
| | - Koichi Nozaki
- Graduate School of Science and Engineering , University of Toyama , 3190 Gofuku , Toyama 930-8555 , Japan
| | - Hiroshi Nishihara
- Department of Chemistry, School of Science , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku, Tokyo 113-0033 , Japan
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40
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Hirao T, Hisano N, Akine S, Kihara SI, Haino T. Ring–Chain Competition in Supramolecular Polymerization Directed by Molecular Recognition of the Bisporphyrin Cleft. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b01012] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Takehiro Hirao
- Department of Chemistry, Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526, Japan
| | - Naoyuki Hisano
- Department of Chemistry, Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526, Japan
| | - Shigehisa Akine
- Graduate School of Natural Science and Technology and WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Shin-ichi Kihara
- Department of Chemical Engineering, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan
| | - Takeharu Haino
- Department of Chemistry, Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526, Japan
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41
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Moon S, Horiuchi S, Sakuda E, Ito A, Arikawa Y, Umakoshi K. Synthesis and photophysical properties of butterfly-shaped dinuclear Pt(II) complex having NHC-based chelate ligands. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2019.04.045] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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42
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Le NHT, Inoue R, Kawamorita S, Komiya N, Naota T. Phosphorescent Molecules That Resist Concentration Quenching in the Solution State: Concentration-Driven Emission Enhancement of Vaulted trans-Bis[2-(iminomethyl)imidazolato]platinum(II) Complexes. Inorg Chem 2019; 58:9076-9084. [DOI: 10.1021/acs.inorgchem.9b00608] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ngoc Ha-Thu Le
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, Machikaneyama, Toyonaka, Osaka 560-8531, Japan
| | - Ryo Inoue
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, Machikaneyama, Toyonaka, Osaka 560-8531, Japan
| | - Soichiro Kawamorita
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, Machikaneyama, Toyonaka, Osaka 560-8531, Japan
| | - Naruyoshi Komiya
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, Machikaneyama, Toyonaka, Osaka 560-8531, Japan
- Chemistry Laboratory, The Jikei University School of Medicine, Kokuryo, Chofu, Tokyo 182-8570, Japan
| | - Takeshi Naota
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, Machikaneyama, Toyonaka, Osaka 560-8531, Japan
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43
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Duy LN, Sekiya R, Tosaka M, Yamago S, Matsumoto T, Nishino T, Ichikawa T, Haino T. Organogelators of 5,17-Difunctionalized Calix[4]arenes. CHEM LETT 2019. [DOI: 10.1246/cl.180819] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Lai Nang Duy
- Department of Chemistry, Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan
| | - Ryo Sekiya
- Department of Chemistry, Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan
| | - Masatoshi Tosaka
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Shigeru Yamago
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Takuya Matsumoto
- Graduate School of Engineering, Kobe University, Rokko, Nada, Kobe, Hyogo 657-8501, Japan
| | - Takashi Nishino
- Graduate School of Engineering, Kobe University, Rokko, Nada, Kobe, Hyogo 657-8501, Japan
| | - Takayuki Ichikawa
- Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan
| | - Takeharu Haino
- Department of Chemistry, Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan
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44
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Hirano K, Ikeda T, Fujii N, Hirao T, Nakamura M, Adachi Y, Ohshita J, Haino T. Helical assembly of a dithienogermole exhibiting switchable circularly polarized luminescence. Chem Commun (Camb) 2019; 55:10607-10610. [PMID: 31424063 DOI: 10.1039/c9cc05253d] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Dithienogermole derivatives S- and R-1 possessing phenylisoxazoles and chiral side chains were synthesized. The helical assembly of 1 in methylcyclohexane exhibited circularly polarized luminescence (CPL). The CPL signals of the assembly in the elongation regime were inverted with respect to those in the nucleation regime.
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Affiliation(s)
- Kyohei Hirano
- Department of Chemistry, Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526, Japan.
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45
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Song J, Wang M, Xu X, Qu L, Zhou X, Xiang H. 1D-helical platinum(ii) complexes bearing metal-induced chirality, aggregation-induced red phosphorescence, and circularly polarized luminescence. Dalton Trans 2019; 48:4420-4428. [DOI: 10.1039/c8dt03615b] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Binaphthyls-linked Pt(ii) complexes with metal-induced chirality self-assemble to build 1D M or P helices and show aggregation/racemization-induced and circularly polarized luminescence.
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Affiliation(s)
- Jintong Song
- College of Chemistry
- Sichuan University
- Chengdu
- China
| | - Man Wang
- College of Chemistry
- Sichuan University
- Chengdu
- China
| | - Xuemei Xu
- College of Chemistry
- Sichuan University
- Chengdu
- China
| | - Lang Qu
- College of Chemistry
- Sichuan University
- Chengdu
- China
| | - Xiangge Zhou
- College of Chemistry
- Sichuan University
- Chengdu
- China
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46
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Park G, Kim H, Yang H, Park KR, Song I, Oh JH, Kim C, You Y. Amplified circularly polarized phosphorescence from co-assemblies of platinum(ii) complexes. Chem Sci 2018; 10:1294-1301. [PMID: 30809343 PMCID: PMC6357861 DOI: 10.1039/c8sc04509g] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Accepted: 11/29/2018] [Indexed: 01/08/2023] Open
Abstract
Molecules capable of producing zero-field circularly polarized phosphorescence (CPP) are highly valuable for chiroptoelectronic applications that rely on triplet exciton. However, the paucity of tractable molecular design rules for obtaining CPP emission has inhibited full utilization. We report amplification of CPP by the formation of helical co-assemblies consisting of achiral square planar cycloplatinated complexes and small fractions of homochiral cycloplatinated complexes. The latter has a unique Pfeiffer effect during the formation of superhelical co-assemblies, enabling versatile chiroptical control. Large dissymmetry factors in electronic absorption (g abs, 0.020) and phosphorescence emission (g lum, 0.064) are observed from the co-assemblies. These values are two orders of magnitude improved relative to those of individual molecules. In addition, photoluminescence quantum yields (PLQY) also increase by a factor of ten. Our structural, photophysical, and quantum chemical investigations reveal that the chiroptical amplification is attributable to utilization of both the magnetically allowed electronic transition and asymmetric coupling of excitons. The strategy overcomes the trade-off between g lum and PLQY which has frequently been found for previous molecular emitters of circularly polarized luminescence. It is anticipated that our study will provide new insight into the future research for the exploitation of the full potential of CPP.
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Affiliation(s)
- Gyurim Park
- Division of Chemical Engineering and Materials Science , Ewha Womans University , Seoul 03760 , The Republic of Korea .
| | - Hyungchae Kim
- Graduate School of Convergence Science and Technology , Inter-University Semiconductor Research Center , Seoul National University , Seoul 08826 , The Republic of Korea
| | - Hoichang Yang
- Department of Chemical Engineering , Inha University , Incheon 22212 , The Republic of Korea
| | - Kyung Ryoul Park
- Graduate School of Convergence Science and Technology , Inter-University Semiconductor Research Center , Seoul National University , Seoul 08826 , The Republic of Korea
| | - Inho Song
- School of Chemical and Biological Engineering , Seoul National University , Seoul 08826 , The Republic of Korea.,Department of Chemical Engineering , Pohang University of Science and Technology (POSTECH) , Pohang , Gyeongbuk 37673 , The Republic of Korea
| | - Joon Hak Oh
- School of Chemical and Biological Engineering , Seoul National University , Seoul 08826 , The Republic of Korea
| | - Changsoon Kim
- Graduate School of Convergence Science and Technology , Inter-University Semiconductor Research Center , Seoul National University , Seoul 08826 , The Republic of Korea
| | - Youngmin You
- Division of Chemical Engineering and Materials Science , Ewha Womans University , Seoul 03760 , The Republic of Korea .
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47
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Baruah JB. Predominantly ligand guided non-covalently linked assemblies of inorganic complexes and guest inclusions. J CHEM SCI 2018. [DOI: 10.1007/s12039-018-1458-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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48
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Song J, Wang M, Zhou X, Xiang H. Unusual Circularly Polarized and Aggregation-Induced Near-Infrared Phosphorescence of Helical Platinum(II) Complexes with Tetradentate Salen Ligands. Chemistry 2018; 24:7128-7132. [DOI: 10.1002/chem.201801414] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Indexed: 12/16/2022]
Affiliation(s)
- Jintong Song
- College of Chemistry; Sichuan University; Chengdu 610041 China
| | - Man Wang
- College of Chemistry; Sichuan University; Chengdu 610041 China
| | - Xiangge Zhou
- College of Chemistry; Sichuan University; Chengdu 610041 China
| | - Haifeng Xiang
- College of Chemistry; Sichuan University; Chengdu 610041 China
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49
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Meng F, Li F, Yang L, Wang Y, Quan Y, Cheng Y. The amplified circularly polarized luminescence emission response of chiral 1,1′-binaphthol-based polymers via Zn(II)-coordination fluorescence enhancement. ACTA ACUST UNITED AC 2018. [DOI: 10.1002/pola.29009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Fandian Meng
- Department of Polymer Science and Engineering, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210093 China
| | - Fei Li
- Key Laboratory of Mesoscopic Chemistry of MOE, Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210093 China
| | - Lan Yang
- Key Laboratory of Mesoscopic Chemistry of MOE, Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210093 China
| | - Yuxiang Wang
- Key Laboratory of Mesoscopic Chemistry of MOE, Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210093 China
| | - Yiwu Quan
- Department of Polymer Science and Engineering, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210093 China
| | - Yixiang Cheng
- Key Laboratory of Mesoscopic Chemistry of MOE, Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210093 China
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Zhang XP, Wang LL, Zhang DS, Qi XW, Shi ZF, Lin Q. Solvent-tuned charge-transfer properties of chiral Pt(ii) complex and TCNQ˙− anion adducts. RSC Adv 2018; 8:10756-10763. [PMID: 35541534 PMCID: PMC9078908 DOI: 10.1039/c8ra01330f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2018] [Accepted: 03/04/2018] [Indexed: 11/22/2022] Open
Abstract
A new pair of adducts comprising one chiral Pt(ii) complex cation, [Pt((−)-L1)(Dmpi)]+ ((−)-1) or [Pt((+)-L1)(Dmpi)]+ ((+)-1) [(−)-L1 = (−)-4,5-pinene-6′-phenyl-2,2′-bipyridine, (+)-L1 = (+)-4,5-pinene-6′-phenyl-2,2′-bipyridine, Dmpi = 2,6-dimethylphenylisocyanide], together with one TCNQ˙− anion have been obtained, and the structures have been confirmed via single-crystal X-ray crystallography and infrared (IR) spectroscopy. The chiral Pt(ii) cation and TCNQ˙− anion are dissociated in MeOH solution, while charge transfer adducts are formed in H2O solution, leading to perturbation of the electronic structure and alteration of the chiral environment, as evidenced by the differences in the UV-vis absorption and electronic circular dichroism spectra. The solvent-tuned charge-transfer properties also have been validated through emission and resonance light scattering spectra. The interesting findings may have potential applications in the development of black absorbers and wide band gap semiconductors. A new couple of charge transfer adducts comprising of one chiral Pt(ii) complex cation together with one TCNQ˙− anion have been prepared, and solvent-induced variances of absorption, luminescence as well as chiral spectra have been investigated.![]()
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Affiliation(s)
- Xiao-Peng Zhang
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province
- College of Chemistry and Chemical Engineering
- Hainan Normal University
- Haikou 571158
- People's Republic of China
| | - Li-Li Wang
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province
- College of Chemistry and Chemical Engineering
- Hainan Normal University
- Haikou 571158
- People's Republic of China
| | - Da-Shuai Zhang
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province
- College of Chemistry and Chemical Engineering
- Hainan Normal University
- Haikou 571158
- People's Republic of China
| | - Xiao-Wei Qi
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province
- College of Chemistry and Chemical Engineering
- Hainan Normal University
- Haikou 571158
- People's Republic of China
| | - Zai-Feng Shi
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province
- College of Chemistry and Chemical Engineering
- Hainan Normal University
- Haikou 571158
- People's Republic of China
| | - Qiang Lin
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province
- College of Chemistry and Chemical Engineering
- Hainan Normal University
- Haikou 571158
- People's Republic of China
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