1
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Han J, Back HJ, Hossain MM, Jung OS, Lee YA. Self-assembly of Ni(II) with a chiral ligand pair vs. mixture of the chiral ligand pair: structural features and recognition ability of Ni 2L 4 cages. Dalton Trans 2024; 53:8934-8939. [PMID: 38738336 DOI: 10.1039/d4dt00762j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/14/2024]
Abstract
The self-assembly of NiCl2 with a chiral bidentate ligand pair, (1R,2S)-(+)- and (1S,2R)-(-)-1-(nicotinamido)-2,3-dihydro-1H-inden-2-yl nicotinate (r,s-L and s,r-L) in a mixture of ethanol and dioxane, gives rise to stable crystals consisting of [2Cl@Ni2Cl2(s,r-L)4(H2O)2]·4C4H8O2·EtOH and [2Cl@Ni2Cl2(r,s-L)4(H2O)2]·4C4H8O2·EtOH chiral cages, respectively, with two encapsulated chloride anions in the cavities. The most interesting feature is that the self-assembly of NiCl2 with the mixture of r,s-L and s,r-L (1 : 1-1 : 4) produces crystals of thermodynamically stable achiral cages, [2Cl·2H2O@Ni2Cl2(s,r-L)2(r,s-L)2(H2O)2]·7C4H8O2, in the molar ratio range. Furthermore, the [2Cl@Ni2Cl2(s,r-L)4(H2O)2]·4C4H8O2·EtOH and [2Cl@Ni2Cl2(r,s-L)4(H2O)2]·4C4H8O2·EtOH chiral crystals can recognize the pairs of L-,D-tryptophan and L-,D-cysteine via cyclic voltammetry (CV) signals, in contrast to the [2Cl·2H2O@Ni2Cl2(s,r-L)2(r,s-L)2(H2O)2]·7C4H8O2 achiral crystal.
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Affiliation(s)
- Jihun Han
- Department of Chemistry, Pusan National University, Busan 46241, Republic of Korea.
| | - Hyo Jeong Back
- Department of Chemistry, Pusan National University, Busan 46241, Republic of Korea.
| | - Mohammad M Hossain
- Department of Electrochemistry, Korea Institute of Materials Science, Changwon 51508, Republic of Korea
| | - Ok-Sang Jung
- Department of Chemistry, Pusan National University, Busan 46241, Republic of Korea.
| | - Young-A Lee
- Department of Chemistry, Jeonbuk National University, Jeonju 54896, Korea.
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2
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Wang R, Song K, Wei Z, Sun Y, Sun X, Hu Y. The Intramolecular Charge Transfer Mechanism by Which Chiral Self-Assembled H 8-BINOL Vesicles Enantioselectively Recognize Amino Alcohols. Int J Mol Sci 2024; 25:5606. [PMID: 38891794 PMCID: PMC11171953 DOI: 10.3390/ijms25115606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 05/12/2024] [Accepted: 05/20/2024] [Indexed: 06/21/2024] Open
Abstract
The chiral H8-BINOL derivatives R-1 and R-2 were efficiently synthesized via a Suzuki coupling reaction, and they can be used as novel dialdehyde fluorescent probes for the enantioselective recognition of R/S-2-amino-1-phenylethanol. In addition, R-1 is much more effective than R-2. Scanning electron microscope images and X-ray analyses show that R-1 can form supramolecular vesicles through the self-assembly effect of the π-π force and strong hydrogen bonding. As determined via analysis, the fluorescence of the probe was significantly enhanced by mixing a small amount of S-2-amino-1-phenylethanol into R-1, with a redshift of 38 nm, whereas no significant fluorescence response was observed in R-2-amino-1-phenylethanol. The enantioselective identification of S-2-amino-1-phenylethanol by the probe R-1 was further investigated through nuclear magnetic titration and fluorescence kinetic experiments and DFT calculations. The results showed that this mechanism was not only a simple reactive probe but also realized object recognition through an ICT mechanism. As the intramolecular hydrogen bond activated the carbonyl group on the probe R-1, the carbonyl carbon atom became positively charged. As a strong nucleophile, the amino group of S-2-amino-1-phenylethanol first transferred the amino electrons to a carbonyl carbocation, resulting in a significantly enhanced fluorescence of the probe R-1 and a 38 nm redshift. Similarly, S-2-amino-1-phenylethanol alone caused severe damage to the self-assembled vesicle structure of the probe molecule itself due to its spatial structure, which made R-1 highly enantioselective towards it.
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Affiliation(s)
- Rong Wang
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, China
| | - Kaiyue Song
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, China
| | - Zhaoqin Wei
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, China
| | - Yue Sun
- State Key Laboratory of Molecular Engineering of Polymers, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials iChEM, Department of Chemistry, Fudan University, Shanghai 200433, China
| | - Xiaoxia Sun
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, China
| | - Yu Hu
- College of Chemistry, Nanchang University, Nanchang 330031, China
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3
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Singha R, Maity P, Samanta D. Chiral Induction in a Self-Assembled Pd 4 Coordination Cage with Chiral Guests. Chemistry 2024:e202401013. [PMID: 38700019 DOI: 10.1002/chem.202401013] [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: 03/12/2024] [Revised: 05/03/2024] [Accepted: 05/03/2024] [Indexed: 05/05/2024]
Abstract
The dynamic interplay of coordination bonds within metal-organic cages offers a unique avenue for structural evolution in response to external stimuli, presenting a promising strategy for the construction of chiral assemblies. This adaptability is crucial for the selective synthesis of homochiral assemblies and advancement of asymmetric catalysis. In this study, we report the self-assembly of an achiral square-planar Pd(II) acceptor with a C2-symmetric tetrapyridyl donor resulted in the formation of a racemic mixture of the chiral octahedral cage Pd4L2. The existence of this racemic mixture was confirmed using circular dichroism spectroscopy as well as single crystal X-ray diffraction analysis. We encoded chiral information into the asymmetric cavity of the cage by encapsulating chiral aromatic guests through efficient π-π stacking and hydrophobic interactions in aqueous media. The inclusion of a chiral guest induces a preference for one enantiomeric conformation of the cage over the other, effectively shifting the equilibrium towards a single, enantiopure host-guest complex. While the concept of chiral guest recognition by a chiral host is well-established, this work constitutes a remarkable example of guest-mediated chirality transfer leading to the formation of a single enantiopure coordination complex from achiral building blocks.
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Affiliation(s)
- Raghunath Singha
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, Bhubaneswar, Jatni, Khurda, Odisha, 752050, India
| | - Pankaj Maity
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, Bhubaneswar, Jatni, Khurda, Odisha, 752050, India
| | - Dipak Samanta
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, Bhubaneswar, Jatni, Khurda, Odisha, 752050, India
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4
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Huang YH, Lu YL, Zhang XD, Liu CH, Ruan J, Qin YH, Cao ZM, Jiang J, Xu HS, Su CY. Dynamic Stereochemistry of M 8 Pd 6 Supramolecular Cages Based on Metal-Center Lability for Differential Chiral Induction, Resolution, and Recognition. Angew Chem Int Ed Engl 2024; 63:e202315053. [PMID: 37883532 DOI: 10.1002/anie.202315053] [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: 10/07/2023] [Revised: 10/24/2023] [Accepted: 10/26/2023] [Indexed: 10/28/2023]
Abstract
A series of isostructural supramolecular cages with a rhombic dodecahedron shape have been assembled with distinct metal-coordination lability (M8 Pd6 -MOC-16, M=Ru2+ , Fe2+ , Ni2+ , Zn2+ ). The chirality transfer between metal centers generally imposes homochirality on individual cages to enable solvent-dependent spontaneous resolution of Δ8 /Λ8 -M8 Pd6 enantiomers; however, their distinguishable stereochemical dynamics manifests differential chiral phenomena governed by the cage stability following the order Ru8 Pd6 >Ni8 Pd6 >Fe8 Pd6 >Zn8 Pd6 . The highly labile Zn centers endow the Zn8 Pd6 cage with conformational flexibility and deformation, enabling intrigue chiral-Δ8 /Λ8 -Zn8 Pd6 to meso-Δ4 Λ4 -Zn8 Pd6 transition induced by anions. The cage stabilization effect differs from inert Ru2+ , metastable Fe2+ /Ni2+ , and labile Zn2+ , resulting in different chiral-guest induction. Strikingly, solvent-mediated host-guest interactions have been revealed for Δ8 /Λ8 -(Ru/Ni/Fe)8 Pd6 cages to discriminate the chiral recognition of the guests with opposite chirality. These results demonstrate a versatile procedure to control the stereochemistry of metal-organic cages based on the dynamic metal centers, thus providing guidance to maneuver cage chirality at a supramolecular level by virtue of the solvent, anion, and guest to benefit practical applications.
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Affiliation(s)
- Yin-Hui Huang
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, GBRCE for Functional Molecular Engineering, LIFM, IGCME, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Yu-Lin Lu
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, GBRCE for Functional Molecular Engineering, LIFM, IGCME, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Xiao-Dong Zhang
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, GBRCE for Functional Molecular Engineering, LIFM, IGCME, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Chen-Hui Liu
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, GBRCE for Functional Molecular Engineering, LIFM, IGCME, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Jia Ruan
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, GBRCE for Functional Molecular Engineering, LIFM, IGCME, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Yu-Han Qin
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, GBRCE for Functional Molecular Engineering, LIFM, IGCME, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Zhong-Min Cao
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, GBRCE for Functional Molecular Engineering, LIFM, IGCME, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Jijun Jiang
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, GBRCE for Functional Molecular Engineering, LIFM, IGCME, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Hai-Sen Xu
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, GBRCE for Functional Molecular Engineering, LIFM, IGCME, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Cheng-Yong Su
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, GBRCE for Functional Molecular Engineering, LIFM, IGCME, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
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5
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Zhang XM, Bai YM, Ai LL, Wu FH, Shan WL, Kang YS, Luo L, Chen K, Xu F. A Chiral Metal-Organic Framework Prepared on Large-Scale for Sensitive and Enantioselective Fluorescence Recognition. Molecules 2023; 28:4593. [PMID: 37375148 DOI: 10.3390/molecules28124593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 05/03/2023] [Accepted: 05/08/2023] [Indexed: 06/29/2023] Open
Abstract
MOF-based luminescent sensors have garnered considerable attention due to their potential in recognition and discrimination with high sensitivity, selectivity, and fast response in the last decades. Herein, this work describes the bulk preparation of a novel luminescent homochiral MOF, namely, [Cd(s-L)](NO3)2 (MOF-1), from an enantiopure pyridyl-functionalized ligand with rigid binaphthol skeleton under mild synthetic condition. Except for the features of porosity and crystallinity, the MOF-1 has also been characterized with water-stability, luminescence, and homochirality. Most important, the MOF-1 exhibits highly sensitive molecular recognition toward the4-nitrobenzoic acid (NBC) and moderate enantioselective detection of proline, arginine, and 1-phenylethanol.
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Affiliation(s)
- Xin-Mei Zhang
- School of Chemistry and Chemical Engineering, Anhui University of Technology, Maanshan 243002, China
| | - Yan-Mei Bai
- School of Chemistry and Chemical Engineering, Anhui University of Technology, Maanshan 243002, China
| | - Lu-Lu Ai
- School of Chemistry and Chemical Engineering, Anhui University of Technology, Maanshan 243002, China
| | - Fang-Hui Wu
- School of Chemistry and Chemical Engineering, Anhui University of Technology, Maanshan 243002, China
| | - Wei-Long Shan
- School of Chemistry and Chemical Engineering, Anhui University of Technology, Maanshan 243002, China
| | - Yan-Shang Kang
- School of Chemistry and Chemical Engineering, Anhui University of Technology, Maanshan 243002, China
| | - Li Luo
- School of Chemistry and Life Sciences, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Kai Chen
- Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Nanjing University of Information Science & Technology, Nanjing 210044, China
| | - Fan Xu
- SJTU SMSE-Mingguang Joint Research Center for Advanced Palygoskite Materials, Mingguang Mingyao Attapulgite Industry Technology Co., Ltd., Chuzhou 239400, China
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6
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Xue W, Wu K, Ouyang N, Brotin T, Nitschke JR. Allosterically Regulated Guest Binding Determines Framework Symmetry for an Fe II 4 L 4 Cage. Angew Chem Int Ed Engl 2023; 62:e202301319. [PMID: 36866857 PMCID: PMC10947561 DOI: 10.1002/anie.202301319] [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: 01/26/2023] [Indexed: 03/04/2023]
Abstract
Self-assembly of a flexible tritopic aniline and 3-substituted 2-formylpyridine subcomponents around iron(II) templates gave rise to a low-spin FeII 4 L4 capsule, whereas a high-spin FeII 3 L2 sandwich species formed when a sterically hindered 6-methyl-2-formylpyridine was used. The FeII 4 L4 cage adopted a new structure type with S4 symmetry, having two mer-Δ and two mer-Ʌ metal vertices, as confirmed by NMR and X-ray crystallographic analysis. The flexibility of the face-capping ligand endows the resulting FeII 4 L4 framework with conformational plasticity, enabling it to adapt structurally from S4 to T or C3 symmetry upon guest binding. The cage also displayed negative allosteric cooperativity in simultaneously binding different guests within its cavity and at the apertures between its faces.
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Affiliation(s)
- Weichao Xue
- Yusuf Hamied Department of ChemistryUniversity of CambridgeCambridgeCB2 1EWUK
| | - Kai Wu
- Yusuf Hamied Department of ChemistryUniversity of CambridgeCambridgeCB2 1EWUK
| | - Nianfeng Ouyang
- Yusuf Hamied Department of ChemistryUniversity of CambridgeCambridgeCB2 1EWUK
| | - Thierry Brotin
- Laboratoire de chimieUniversité LyonEns de Lyon, CNRS UMR 518269342LyonFrance
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7
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Qin S, You X, Guo X, Chu H, Dong Q, Cui H, Jin F, Gao L. A chiral fluorescent COF prepared by post-synthesis modification for optosensing of imazamox enantiomers. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 291:122370. [PMID: 36680831 DOI: 10.1016/j.saa.2023.122370] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 01/04/2023] [Accepted: 01/11/2023] [Indexed: 06/17/2023]
Abstract
We report a post-synthesis modification for the preparation of a novel chiral fluorescent covalent organic framework (COF) for selective recognization of imazamox enantiomers. In this study, chiral COF was firstly synthesized via a Schiff-base reaction between 2,5-dihydroxyterephthalaldehyde (Dha) and 1,3,5-tris(4-aminophenyl)benzene (Tab) followed by a nucleophilic substitution using (1S)-(+)-10-camphorsulfonyl chloride as chiral modifier. The resulting regular spherical chiral COF Dha Tab not only presented the high optical efficiency, strong covalent bond structure, good crystallinity, large specific surface area but also showed the specific enantioselectivity and quick identification for imazamox enantiomers among five pesticide enantiomers (S/R-imazamox, acephate, acetochlor, propisochlor and metalaxyl). The detection limits for S- and R-imazamox were 4.20 μmol/L and 3.03 μmol/L, respectively. Meanwhile, the enantiomeric excess value (5.30 %) manifested that the chiral COF Dha Tab had the strong adsorption ability to imazamox enantiomers and more higher affinity for R-imazamox. This chiral fluorescent COF opened up a new way for the recognition of enantiomers.
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Affiliation(s)
- Shili Qin
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, PR China
| | - Xingyu You
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, PR China
| | - Xinyu Guo
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, PR China
| | - Hongtao Chu
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, PR China
| | - Qing Dong
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, PR China
| | - Hongshou Cui
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, PR China
| | - Fenglong Jin
- Qiqihar Inspection and Testing Center, Qiqihar Administration for Market Regulation, China.
| | - Lidi Gao
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, PR China.
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8
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Xue W, Pesce L, Bellamkonda A, Ronson TK, Wu K, Zhang D, Vanthuyne N, Brotin T, Martinez A, Pavan GM, Nitschke JR. Subtle Stereochemical Effects Influence Binding and Purification Abilities of an Fe II4L 4 Cage. J Am Chem Soc 2023; 145:5570-5577. [PMID: 36848676 PMCID: PMC9999408 DOI: 10.1021/jacs.3c00294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
A tetrahedral FeII4L4 cage assembled from the coordination of triangular chiral, face-capping ligands to iron(II). This cage exists as two diastereomers in solution, which differ in the stereochemistry of their metal vertices, but share the same point chirality of the ligand. The equilibrium between these cage diastereomers was subtly perturbed by guest binding. This perturbation from equilibrium correlated with the size and shape fit of the guest within the host; insight as to the interplay between stereochemistry and fit was provided by atomistic well-tempered metadynamics simulations. The understanding thus gained as to the stereochemical impact on guest binding enabled the design of a straightforward process for the resolution of the enantiomers of a racemic guest.
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Affiliation(s)
- Weichao Xue
- Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge CB2 1EW, U.K
| | - Luca Pesce
- Department of Innovative Technologies, University of Applied Sciences and Arts of Southern Switzerland, CH-6962 Lugano-Viganello, Switzerland
| | | | - Tanya K Ronson
- Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge CB2 1EW, U.K
| | - Kai Wu
- Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge CB2 1EW, U.K
| | - Dawei Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| | - Nicolas Vanthuyne
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313, 13397 Marseille, France
| | - Thierry Brotin
- Laboratoire de Chimie, Université Lyon, Ens de Lyon, CNRS UMR 5182, Lyon F69342, France
| | - Alexandre Martinez
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313, 13397 Marseille, France
| | - Giovanni M Pavan
- Department of Innovative Technologies, University of Applied Sciences and Arts of Southern Switzerland, CH-6962 Lugano-Viganello, Switzerland.,Department of Applied Science and Techology, Politecnico di Torino, 10129 Torino, Italy
| | - Jonathan R Nitschke
- Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge CB2 1EW, U.K
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9
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Wang L, Han S, Yu H, Yu Q, Pei D, Lv W, Wang J, Li X, Ding R, Wang Q, Lv M. Porous Organic Cage-Embedded C10-Modified Silica as HPLC Stationary Phase and Its Multiple Separation Functions. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27248895. [PMID: 36558026 PMCID: PMC9782137 DOI: 10.3390/molecules27248895] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/06/2022] [Accepted: 12/09/2022] [Indexed: 12/23/2022]
Abstract
Reduced imine cage (RCC3) was covalently bonded to the surface of silica spheres, and then the secondary amine group of the molecular cage was embedded in non-polar C10 for modification to prepare a novel RCC3-C10@silica HPLC stationary phase with multiple separation functions. Through infrared spectroscopy, thermogravimetric analysis and nitrogen adsorption-desorption characterization, it was confirmed that RCC3-C10 was successfully bonded to the surface of silica spheres. The resolution of RCC3-C10@silica in reversed-phase separation mode is as high as 2.95, 3.73, 3.27 and 4.09 for p-phenethyl alcohol, 1-phenyl-2-propanol, p-methylphenethyl alcohol and 1-phenyl-1-propanol, indicating that the stationary phase has excellent chiral resolution performance. In reversed-phase and hydrophilic separation modes, RCC3-C10@silica realized the separation and analysis of a total of 70 compounds in 8 classes of Tanaka mixtures, alkylbenzene rings, polyphenyl rings, phenols, anilines, sulfonamides, nucleosides and flavonoids, and the analysis of a variety of chiral and achiral complex mixtures have been completed at the same time. Compared with the traditional C18 commercial column, RCC3-C10@silica exhibits better chromatographic separation selectivity, aromatic selectivity and polar selectivity. The multifunctional separation mechanism exhibited by the stationary phase originates from various synergistic effects such as hydrophobic interaction, π-π interaction, hydrogen bonding and steric interaction provided by RCC3 and C10 groups. This work provides flexible selectivity and application prospects for novel multi-separation functional chromatographic columns.
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Affiliation(s)
- Litao Wang
- School of Pharmacy, Jining Medical University, Jining 272000, China
| | - Siqi Han
- School of Pharmacy, Jining Medical University, Jining 272000, China
| | - Haiyang Yu
- School of Pharmacy, Jining Medical University, Jining 272000, China
| | - Qinghua Yu
- School of Pharmacy, Jining Medical University, Jining 272000, China
- School of Pharmacy, Weifang Medical University, Weifang 261000, China
| | - Dong Pei
- Qingdao Center of Resource Chemistry & New Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Qingdao 266000, China
| | - Wenjing Lv
- School of Pharmacy, Jining Medical University, Jining 272000, China
| | - Jiasheng Wang
- School of Pharmacy, Jining Medical University, Jining 272000, China
| | - Xingyu Li
- School of Pharmacy, Jining Medical University, Jining 272000, China
| | - Ruifang Ding
- School of Pharmacy, Jining Medical University, Jining 272000, China
- Correspondence: (R.D.); (Q.W.); (M.L.)
| | - Qibao Wang
- School of Pharmacy, Jining Medical University, Jining 272000, China
- Correspondence: (R.D.); (Q.W.); (M.L.)
| | - Mei Lv
- School of Pharmacy, Jining Medical University, Jining 272000, China
- Correspondence: (R.D.); (Q.W.); (M.L.)
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10
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Coordination-driven chiral self-assembly: Synthesis, structures and vapor adsorption properties of Zn(II) and Ag(I) complexes derived from two helical pyridylamide ligands. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.110059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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11
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A chiral metal-organic cage [Fe4L6](ClO4)8 used for capillary gas chromatographic separations. Anal Chim Acta 2022; 1224:340197. [DOI: 10.1016/j.aca.2022.340197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 07/20/2022] [Accepted: 07/21/2022] [Indexed: 11/17/2022]
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12
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Zhu J, Li C, Li X, Wang Q, Zou L. Different-shaped ligand mediating efficient structurally similar cage-to-cage transformation. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.07.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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13
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Xue W, Ronson TK, Lu Z, Nitschke JR. Solvent Drives Switching between Λ and Δ Metal Center Stereochemistry of M 8L 6 Cubic Cages. J Am Chem Soc 2022; 144:6136-6142. [PMID: 35364808 PMCID: PMC9098163 DOI: 10.1021/jacs.2c00245] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
![]()
An
enantiopure ligand with four bidentate metal-binding sites and
four (S)-carbon stereocenters self-assembles with
octahedral ZnII or CoII to produce O-symmetric M8L6 coordination cages. The Λ-
or Δ-handedness of the metal centers forming the corners of
these cages is determined by the solvent environment: the same (S)-ligand produces one diastereomer, (S)24-Λ8-M8L6, in
acetonitrile but another with opposite metal-center handedness, (S)24-Δ8-M8L6, in nitromethane. Van ’t Hoff analysis revealed the Δ
stereochemical configuration to be entropically favored but enthalpically
disfavored, consistent with a loosening of the coordination sphere
and an increase in conformational freedom following Λ-to-Δ
transition. The binding of 4,4′-dipyridyl naphthalenediimide
and tetrapyridyl Zn-porphyrin guests did not interfere with the solvent-driven
stereoselectivity of self-assembly, suggesting applications where
either a Λ- or Δ-handed framework may enable chiral separations
or catalysis.
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Affiliation(s)
- Weichao Xue
- Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge CB2 1EW, United Kingdom
| | - Tanya K Ronson
- Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge CB2 1EW, United Kingdom
| | - Zifei Lu
- Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge CB2 1EW, United Kingdom
| | - Jonathan R Nitschke
- Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge CB2 1EW, United Kingdom
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14
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Yan MJ, Huang SL, Yang GY. Dual-AIEgens in one organoplatinum(II) metallaprism: photoluminescence exploration. Dalton Trans 2022; 51:842-846. [PMID: 34988570 DOI: 10.1039/d1dt03919a] [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
Two sets of cis-trans isostructural metallaprisms were constructed from the controlling linkage of a Pt-corner, and a linear and quadrilateral AIE ligand. The combination of two AIEgens of TPE and the Pt-corner into one system endows these isomers with interesting AIE functions.
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Affiliation(s)
- Ming-Jie Yan
- MOE Key Laboratory of Cluster Science, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China.
| | - Sheng-Li Huang
- MOE Key Laboratory of Cluster Science, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China.
| | - Guo-Yu Yang
- MOE Key Laboratory of Cluster Science, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China.
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15
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Sarkar M, Rajasekar P, Jose C, Boomishankar R. Polyanionic Imido-P(V) Ligands: From Transition Metal Complexes to Coordination Driven Self-Assemblies. CHEM REC 2021; 22:e202100281. [PMID: 34962082 DOI: 10.1002/tcr.202100281] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 12/03/2021] [Indexed: 11/11/2022]
Abstract
The chemistry of the imido-anions of the main group elements has been studied for more than three decades. The imido (NR)- group is isoelectronic to the oxo (=O) group and can coordinate with metal ions through its lone pairs of electrons. The polyimido-P(V) anions are well explored as they resemble the phosphorus oxo moieties such as H3 PO4 , H2 PO4 - , HPO4 2- and PO4 3- species. These imido anions are typically generated using strong main group organometallic reagents such as n BuLi, Et2 Zn, Me3 Al and n Bu2 Mg, etc. As a result, their coordination chemistry has been restricted to reactions in anhydrous aprotic solvents for a few main group metal ions. This account presents our findings on using certain soft transition metal such Ag(I) and Pd (II) for isolating these imido-P(V) anions as their corresponding self-assembled clusters and cages. Using the various salts of Ag(I) ions in reaction with 2-pyridyl (2 Py) functionalized phosphonium salts and phosphoric triamides, we obtained the mono- and dianionic form of these imido ligands {[P(N2 Py)2 (NH2 Py)2 ]- , [P(N2 Py)2 (NH2 Py)]- , [PO(N2 Py)(NH2 Py)2 ]2- } and derived interesting examples of tri, penta, hepta and octanuclear Ag(I) clusters. Interestingly, by using the salts of Pd (II) ions, the elusive imido-phosphate trianions of the type [(RN)3 PO]3- (R=t Bu, c Hex, i Pr) were generated in a facile one pot reaction as their corresponding tri- and hexanuclear clusters of the type {Pd3 [(NR)3 PO](OAc)3 }n (n=1 or 2). These trianions acts as a cis-coordinated hexadentate ligand for a trinuclear Pd (II) cluster and serve as the polyhedral building units for constructing hitherto unknown family of neutral cages in tetrahedral {Pd3 [(Ni Pr)3 PO]4 (L)6 } and cubic {Pd3 [(Ni Pr)3 PO]8 (L)12 } structures in the presence of suitable linker ligands (L2- ). These cages show interesting host-guest chemistry and post-assembly reactions. Remarkably, by employing chiral tris(imido)phosphate trianions, enantiopure chiral cages of the type [(Pd3 X*)4 (L)6 ], ([X*]3- =RRR- or SSS-[PO(N(*CH(CH3 )Ph)3 ]3- ), were synthesized and used for the chiral-recognition and enantio-separation of small racemic guest molecules. Some of these chiral cages were also shown to exhibit polyradical framework structures. In future, these and other similar types of cages are envisioned as potential molecular vessels for performing the reactions in their confined environment. The enantiomeric cages can be probed for asymmetric catalysis and the separation of a range of small chiral molecules.
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Affiliation(s)
- Meghamala Sarkar
- Department of Chemistry, Indian Institute of Science Education and Research, Pune, Dr. Homi Bhabha Road, Pune, 411008, India
| | - Prabhakaran Rajasekar
- Department of Chemistry, Indian Institute of Science Education and Research, Pune, Dr. Homi Bhabha Road, Pune, 411008, India
| | - Cavya Jose
- Department of Chemistry, Indian Institute of Science Education and Research, Pune, Dr. Homi Bhabha Road, Pune, 411008, India
| | - Ramamoorthy Boomishankar
- Department of Chemistry, Indian Institute of Science Education and Research, Pune, Dr. Homi Bhabha Road, Pune, 411008, India.,Centre for Energy Science, Indian Institute of Science Education and Research, Pune, Dr. Homi Bhabha Road, Pune, 411008, India
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16
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Ren H, Liu C, Ding X, Fu X, Wang H, Jiang J. High Fluorescence Porous Organic Cage for Sensing Divalent Palladium Ion and Encapsulating Fine Palladium Nanoparticles. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202100612] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Huimin Ren
- Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials, Department of Chemistry and Chemical Engineering, School of Chemistry and Biological Engineering, University of Science and Technology Beijing Beijing 100083 China
| | - Chao Liu
- Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials, Department of Chemistry and Chemical Engineering, School of Chemistry and Biological Engineering, University of Science and Technology Beijing Beijing 100083 China
| | - Xu Ding
- Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials, Department of Chemistry and Chemical Engineering, School of Chemistry and Biological Engineering, University of Science and Technology Beijing Beijing 100083 China
| | - Xianzhang Fu
- Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials, Department of Chemistry and Chemical Engineering, School of Chemistry and Biological Engineering, University of Science and Technology Beijing Beijing 100083 China
| | - Hailong Wang
- Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials, Department of Chemistry and Chemical Engineering, School of Chemistry and Biological Engineering, University of Science and Technology Beijing Beijing 100083 China
| | - Jianzhuang Jiang
- Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials, Department of Chemistry and Chemical Engineering, School of Chemistry and Biological Engineering, University of Science and Technology Beijing Beijing 100083 China
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17
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Dong J, Liu Y, Cui Y. Artificial Metal-Peptide Assemblies: Bioinspired Assembly of Peptides and Metals through Space and across Length Scales. J Am Chem Soc 2021; 143:17316-17336. [PMID: 34618443 DOI: 10.1021/jacs.1c08487] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The exploration of chiral crystalline porous materials, such as metal-organic complexes (MOCs) or metal-organic frameworks (MOFs), has been one of the most exciting recent developments in materials science owing to their widespread applications in enantiospecific processes. However, achieving specific tight-affinity binding and remarkable enantioselectivity toward important biomolecules is still challenging. Perhaps most critically, the lack of adaptability, compatibility, and processability in these materials severely impedes practical applications in chemical engineering and biological technology. In this Perspective, artificial metal-peptide assemblies (MPAs), which are achieved by the assembly of peptides and metals with nanometer-sized cavities or pores, is a new development that could address the current bottlenecks of chiral porous materials. Bioinspired assembly of pore-forming MPAs is not foreign to biological systems and has granted scientists an unprecedented level of control over the chiral recognition sites, conformational flexibility, cavity sizes, and hydrophilic segments through ultrafine-tuning of peptide-derived linkers. We will specifically discuss exemplary MPAs including structurally well-defined metal-peptide complexes and highly crystalline metal-peptide frameworks. With insights from these structures, the peptide assembly and folding by the closer cooperation of metal coordination and noncovalent interactions can create adaptable protein-like nanocavities undergoing a myriad of conformational variations that is reminiscent of enzymatic pockets. We also consider challenges to advancing the field, where the deployment of side-chain groups and manipulation of amino acid sequences are more likely to access the programmable, genetically encodable peptide-mediated porous materials, thus contributing to the enhanced enantioselective recognition as well as enabling key biochemical processes in next-generation versatile biomimetic materials.
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Affiliation(s)
- Jinqiao Dong
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yan Liu
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yong Cui
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China
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18
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Basak M, Das G. Supramolecular self-assembly of a nitro-incorporating quinoxaline framework: insights into the origin of fluorescence turn-on response towards the benzene group of VOCs. Analyst 2021; 146:6239-6244. [PMID: 34528640 DOI: 10.1039/d1an01127h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Hazardous volatile organic compounds (VOCs) can significantly impact human health and the environment. Hence, the detection of VOCs is of foremost importance. A quinoxaline-based fluorimetric probe (1) unveils a notable "turn-on" fluorescence response towards mesitylene in the presence of other VOCs and common interfering ions in aqueous media. The sensing phenomenon involves specific 1 : 1 stoichiometric binding of the probe with mesitylene with a ∼2.66 ppm detection limit. Furthermore, the probe experiences morphological transformations from a fibril-network to a stone-shaped hetero-structure upon treatment with mesitylene, indicating mesitylene induced self-assembly. The detection induced self-assembly of the probe was further corroborated by dynamic-light-scattering (DLS) and fluorescence microscopy study. Importantly, this proposed approach is applicable to detect mesitylene in natural water sources and in the vapor phase using portable, low-cost filter paper strips.
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Affiliation(s)
- Megha Basak
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam 781039, India.
| | - Gopal Das
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam 781039, India.
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19
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Chiral metal–organic frameworks based on asymmetric synthetic strategies and applications. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214083] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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20
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Weng ZZ, Xu H, Zhang W, Zhuang GL, Long LS, Kong XJ, Zheng LS. Enantioselective Recognition and Separation of C2 Symmetric Substances via Chiral Metal-Organic Frameworks. ACS APPLIED MATERIALS & INTERFACES 2021; 13:37412-37421. [PMID: 34340310 DOI: 10.1021/acsami.1c10626] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
A promising route toward the enantioselective recognition and separation of racemic molecules is the design of chiral metal-organic frameworks (CMOFs) with high enantioselectivity and stability. Herein, we report porous CMOFs Δ- and Λ-RuEu-MOFs constructed from the D3-symmetry helical chiral Ru(phen)3-derived tricarboxylate ligand and Eu2 units, which can be utilized as adsorbents for the enantioselective recognition and separation of 1,1'-bi-2-naphthol (BINOL) derivatives. Investigation of the circular dichroism enantiodifferentiation between the host and guest suggested that Δ- and Λ-RuEu-MOFs can be employed as chiral sensors to discriminate axial enantiomers due to their diastereomeric host-guest relationship. Density functional theory calculations reveal that chiral recognition is attributed to the distinguishing binding affinities stemming from N···H-O hydrogen bonds and π-π stacking between the host and guest. Moreover, the reticulate structure of Δ- and Λ-RuEu-MOFs can be readily recycled and reused for the successive enantioselective separation of BINOL up to 80% ee.
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Affiliation(s)
- Zhen-Zhang Weng
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surface and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Han Xu
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surface and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Wei Zhang
- Institute of Industrial Catalysis, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, China
| | - Gui-Lin Zhuang
- Institute of Industrial Catalysis, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, China
| | - La-Sheng Long
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surface and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Xiang-Jian Kong
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surface and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Lan-Sun Zheng
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surface and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
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21
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Zhang L, Liu H, Yuan G, Han Y. Chiral Coordination Metallacycles/Metallacages for Enantioselective Recognition and Separation. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202100180] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Liyan Zhang
- School of Chemistry and Chemical Engineering, Institute of Materials Science and Engineering, Anhui University of Technology Maanshan Anhui 243032 China
| | - Huiping Liu
- School of Chemistry and Chemical Engineering, Institute of Materials Science and Engineering, Anhui University of Technology Maanshan Anhui 243032 China
| | - Guozan Yuan
- School of Chemistry and Chemical Engineering, Institute of Materials Science and Engineering, Anhui University of Technology Maanshan Anhui 243032 China
| | - Ying‐Feng Han
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry and Materials Science, Northwest University Xi'an Shaanxi 710127 China
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22
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23
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Thoonen S, Hua C. Chiral Detection with Coordination Polymers. Chem Asian J 2021; 16:890-901. [PMID: 33709619 DOI: 10.1002/asia.202100039] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 03/11/2021] [Indexed: 12/15/2022]
Abstract
Coordination polymers and metal-organic frameworks are prime candidates for general chemical sensing, but the use of these porous materials as chiral probes is still an emerging field. In the last decade, they have found application in a range of chiral analysis methods, including liquid- and gas-phase chromatography, circular dichroism spectroscopy, fluorescence sensing, and NMR spectroscopy. In this minireview, we examine recent works on coordination polymers as chiral sensors and their enantioselective host-guest chemistry, while highlighting their potential for application in different settings.
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Affiliation(s)
- Shannon Thoonen
- School of Chemistry, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Carol Hua
- School of Chemistry, The University of Melbourne, Parkville, Victoria, 3010, Australia
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24
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Sturm L, Göb CR, Oppel IM. Anion Directed Selective Synthesis of Supramolecular Metallocycles and Related Coordination Dimers. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202001091] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Lisa Sturm
- Institute of Inorganic Chemistry RWTH Aachen University Landoltweg 1 52074 Aachen Germany
| | - Christian R. Göb
- Institute of Inorganic Chemistry RWTH Aachen University Landoltweg 1 52074 Aachen Germany
| | - Iris M. Oppel
- Institute of Inorganic Chemistry RWTH Aachen University Landoltweg 1 52074 Aachen Germany
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25
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Abstract
Chirality is a pervasive structural feature of nature and crucial to the organization and function of nearly all biological systems. At the molecular level, the biased availability of enantiomers in nucleic and amino acids forms the basis for asymmetry. However, chirality expression in natural systems remains complex and intriguing across differing length scales. The translation of chirality toward synthetic systems therefore not only is crucial for fundamental understanding but also may address key challenges in biochemistry and pharmacology. From a structural viewpoint, a fascinating class of cavity-containing supramolecular assemblies, homochiral metal-organic complexes (MOCs), provides a good opportunity to study enantioselective processes. Chiral MOCs are constructed by coordination-driven self-assembly, wherein relatively simple molecular precursors are allowed to assemble into structurally well-defined two-dimensional (2D) metallacycles or 3D metallacages spontaneously with complex and varied functions. These aesthetically appealing structures present nanocavities with space-restricted chiral microenvironments capable of interacting distinctly with molecularly asymmetric guests, which is highly beneficial to explore the relay of chiral information from locally chiral molecules to globally chiral supramolecules, which is a significant challenge.In this Account, we specifically discuss our research toward rationally designed, synthetically accessible chiral MOCs over the past 12 years. The globally supramolecular chirality demonstrated by these well-defined MOCs prominently exceeds the constitutive molecular chirality of the components. First, we discuss chirality transfer and amplification in the context of induction and transmission from the constituent organic ligands of self-assembled chiral metallacycles. The creation of subtly chiral microenvironments in the metallacyclic architectures results from a tiny conformational bias of inner hydrophobic groups, subsequently allowing them to interact very specifically with one enantiomer over the other, thus imparting outstanding enantioseparation properties. Second, we have designed a series of chiral metallacycles and helical metallacages that are able to deploy chiral NH groups with available hydrogen bonding capacity, together with hydrophobic/CH-π interactions, bringing about cooperativity for binding of chiral substrates. It turns out that they can be used as artificial chiral receptors capable of exceptionally high enantiorecognition toward a wide range of biologically relevant molecules. Third, we recently developed a group of highly stable chiral metallacages that feature a catalytically confined nanospace with potential as supramolecular asymmetric catalysts. It has been suggested that the use of molecularly nanocaged chiral hosts in solution to substantially increase reactivity and enantioselectivity compared with the unconfined reactions, highlighting the intermetallic synergy, rationalizes the remarkable catalytic performance. Finally, we discuss our personal perspectives on the promises, opportunities, and key issues toward the future development of chiral MOCs. Needless to say that the fundamental understanding of the translation of chirality from molecular to supramolecular to macroscopic scales is crucial to unveil biological mechanisms. We hope the described supramolecular chirality of MOCs could be extendable to develop new and valuable chiral materials in chemistry, medicine, and beyond.
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Affiliation(s)
- Jinqiao Dong
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yan Liu
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yong Cui
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China
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26
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Zhang H, Ding GY, Cui DX, Yousaf A, Chen L, Wang XL, Shan GG, Sun CY, Su ZM. A fluorescent porous covalent-organic polymer (COP-3) for highly selective and sensitive detection of Fe 3+ in aqueous solution. NEW J CHEM 2021. [DOI: 10.1039/d0nj05698g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel COP exhibits excellent performance in sensing Fe3+ at the ppb level, with high cyclicity and anti-interfere ability.
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Affiliation(s)
- Han Zhang
- School of Materials Science and Engineering
- Changchun University of Science and Technology
- Changchun 130022
- China
- National & Local United Engineering Laboratory for Power Batteries
| | - Guan-yu Ding
- School of Materials Science and Engineering
- Changchun University of Science and Technology
- Changchun 130022
- China
- National & Local United Engineering Laboratory for Power Batteries
| | - Dong-xu Cui
- National & Local United Engineering Laboratory for Power Batteries
- Key Laboratory of Polyoxometalate Science of Ministry of Education Department of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Afifa Yousaf
- National & Local United Engineering Laboratory for Power Batteries
- Key Laboratory of Polyoxometalate Science of Ministry of Education Department of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Li Chen
- School of Materials Science and Engineering
- Changchun University of Science and Technology
- Changchun 130022
- China
- National & Local United Engineering Laboratory for Power Batteries
| | - Xin-Long Wang
- School of Materials Science and Engineering
- Changchun University of Science and Technology
- Changchun 130022
- China
- National & Local United Engineering Laboratory for Power Batteries
| | - Guo-Gang Shan
- National & Local United Engineering Laboratory for Power Batteries
- Key Laboratory of Polyoxometalate Science of Ministry of Education Department of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Chun-Yi Sun
- School of Materials Science and Engineering
- Changchun University of Science and Technology
- Changchun 130022
- China
- National & Local United Engineering Laboratory for Power Batteries
| | - Zhong-Min Su
- School of Materials Science and Engineering
- Changchun University of Science and Technology
- Changchun 130022
- China
- National & Local United Engineering Laboratory for Power Batteries
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27
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Affiliation(s)
- Chuanlong Li
- School of Chemistry and Chemical Engineering, Frontiers Science Centre for Transformative Molecules, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Yong Zuo
- School of Chemistry and Chemical Engineering, Frontiers Science Centre for Transformative Molecules, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Yu-Quan Zhao
- School of Chemistry and Chemical Engineering, Frontiers Science Centre for Transformative Molecules, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Shaodong Zhang
- School of Chemistry and Chemical Engineering, Frontiers Science Centre for Transformative Molecules, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
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28
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Ito M, Ikai T, Yamamoto S, Taura D, Ousaka N, Yashima E. Chiral Guest-induced Catalytic Deracemization of a Spiroborate-based Double-stranded Helicate Bearing a Bisporphyrin Unit with Acids. CHEM LETT 2020. [DOI: 10.1246/cl.200352] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Masaki Ito
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Nagoya, Aichi 464-8603, Japan
| | - Tomoyuki Ikai
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Nagoya, Aichi 464-8603, Japan
| | - Shinya Yamamoto
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Nagoya, Aichi 464-8603, Japan
| | - Daisuke Taura
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Nagoya, Aichi 464-8603, Japan
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Nagoya, Aichi 464-8603, Japan
| | - Naoki Ousaka
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Nagoya, Aichi 464-8603, Japan
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Nagoya, Aichi 464-8603, Japan
| | - Eiji Yashima
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Nagoya, Aichi 464-8603, Japan
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Nagoya, Aichi 464-8603, Japan
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29
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Towards a Generalized Synthetic Strategy for Variable Sized Enantiopure M4L4 Helicates. CHEMISTRY-SWITZERLAND 2020. [DOI: 10.3390/chemistry2030038] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The reliable and predictable synthesis of enantiopure coordination cages is an important step towards the realization of discrete cages capable of enantioselective discrimination. We have built upon our initial report of a lantern-type helical cage in attempts to expand the synthesis into a general approach. The use of a longer, flexible diacid ligand results in the anticipated cage [Cu4(L1)4(solvent)4] with a similar helical pitch to that previously observed and a cavity approximately 30% larger. Using a shorter, more rigid ligand gave rise to a strained, conjoined cage-type complex when using DABCO as an internal bridging ligand, [{Co4(L2)4(DABCO)(OH2)x}2 (DABCO)]. The expected paddlewheel motif only forms for one of the Co2 units within each cage, with the other end adopting a “partial paddlewheel” with aqua ligands completing the coordination sphere of the externally facing metal ion. The generic approach of using chiral diacids to construct lantern-type cages is partially borne out, with it being apparent that flexibility in the core group is an essential structural feature.
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30
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Yao Y, Zhou Y, Zhu T, Gao T, Li H, Yan P. Eu(III) Tetrahedron Cage as a Luminescent Chemosensor for Rapidly Reversible and Turn-On Detection of Volatile Amine/NH 3. ACS APPLIED MATERIALS & INTERFACES 2020; 12:15338-15347. [PMID: 32148017 DOI: 10.1021/acsami.9b21425] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Because of the involvement of the gas-solid diffusion, device fabrication, and the relatively complex photophysical process, the lanthanide complexes are rarely exploited as fluorescence sensors for volatile compound (VC) detection. Herein, we report the first example of a discrete 3D Ln-based architecture as a sensor for VCs. The designed Eu4L4 tetrahedral cage shows highly selective, rapidly reversible, and turn-on emissive responses toward volatile amines/NH3 in a spin-coated film. Through the comprehensive spectral characteristic and density functional theory calculation, an intermolecular weak nucleophilic interaction is proposed for this response mechanism. Combining this weak interactions with the permeability of the cage, the film presents subsecond to second timescales rapid response; combining the fitting electrophilic capability of the β-diketonate units to amine nitrogen with the tunable intramolecular charge-transfer feature, the cage shows excellent selectivity and turn-on emissive response. This work provides a new clue to develop the lanthanide complexes as luminescence probes for VCs.
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Affiliation(s)
- Yuan Yao
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
- Jiamusi College, Heilongjiang University of Chinese Medicine, Jiamusi 154007, China
| | - Yanyan Zhou
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Tianyu Zhu
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Ting Gao
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Hongfeng Li
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Pengfei Yan
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
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31
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Dong J, Pan Y, Wang H, Yang K, Liu L, Qiao Z, Yuan YD, Peh SB, Zhang J, Shi L, Liang H, Han Y, Li X, Jiang J, Liu B, Zhao D. Self‐Assembly of Highly Stable Zirconium(IV) Coordination Cages with Aggregation Induced Emission Molecular Rotors for Live‐Cell Imaging. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201915199] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jinqiao Dong
- Department of Chemical and Biomolecular EngineeringNational University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
| | - Yutong Pan
- Department of Chemical and Biomolecular EngineeringNational University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
| | - Heng Wang
- Department of ChemistryUniversity of South Florida Tampa FL 33620 USA
| | - Kuiwei Yang
- Department of Chemical and Biomolecular EngineeringNational University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
| | - Lingmei Liu
- King Abdullah University of Science and Technology (KAUST)Advanced Membranes and Porous Materials Center, Physical Sciences and Engineering Division Thuwal 23955-6900 Saudi Arabia
| | - Zhiwei Qiao
- Guangzhou Key Laboratory for New Energy and Green CatalysisSchool of Chemistry and Chemical EngineeringGuangzhou University Guangzhou 510006 P. R. China
| | - Yi Di Yuan
- Department of Chemical and Biomolecular EngineeringNational University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
| | - Shing Bo Peh
- Department of Chemical and Biomolecular EngineeringNational University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
| | - Jian Zhang
- Department of Chemical and Biomolecular EngineeringNational University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
| | - Leilei Shi
- Department of Chemical and Biomolecular EngineeringNational University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
| | - Hong Liang
- Guangzhou Key Laboratory for New Energy and Green CatalysisSchool of Chemistry and Chemical EngineeringGuangzhou University Guangzhou 510006 P. R. China
| | - Yu Han
- King Abdullah University of Science and Technology (KAUST)Advanced Membranes and Porous Materials Center, Physical Sciences and Engineering Division Thuwal 23955-6900 Saudi Arabia
| | - Xiaopeng Li
- Department of ChemistryUniversity of South Florida Tampa FL 33620 USA
| | - Jianwen Jiang
- Department of Chemical and Biomolecular EngineeringNational University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
| | - Bin Liu
- Department of Chemical and Biomolecular EngineeringNational University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
| | - Dan Zhao
- Department of Chemical and Biomolecular EngineeringNational University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
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32
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Dong J, Pan Y, Wang H, Yang K, Liu L, Qiao Z, Yuan YD, Peh SB, Zhang J, Shi L, Liang H, Han Y, Li X, Jiang J, Liu B, Zhao D. Self-Assembly of Highly Stable Zirconium(IV) Coordination Cages with Aggregation Induced Emission Molecular Rotors for Live-Cell Imaging. Angew Chem Int Ed Engl 2020; 59:10151-10159. [PMID: 31859381 DOI: 10.1002/anie.201915199] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Indexed: 11/06/2022]
Abstract
The self-assembly of highly stable zirconium(IV)-based coordination cages with aggregation induced emission (AIE) molecular rotors for in vitro bio-imaging is reported. The two coordination cages, NUS-100 and NUS-101, are assembled from the highly stable trinuclear zirconium vertices and two flexible carboxyl-decorated tetraphenylethylene (TPE) spacers. Extensive experimental and theoretical results show that the emissive intensity of the coordination cages can be controlled by restricting the dynamics of AIE-active molecular rotors though multiple external stimuli. Because the two coordination cages have excellent chemical stability in aqueous solutions (pH stability: 2-10) and impressive AIE characteristics contributed by the molecular rotors, they can be employed as novel biological fluorescent probes for in vitro live-cell imaging.
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Affiliation(s)
- Jinqiao Dong
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Yutong Pan
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Heng Wang
- Department of Chemistry, University of South Florida, Tampa, FL, 33620, USA
| | - Kuiwei Yang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Lingmei Liu
- King Abdullah University of Science and Technology (KAUST), Advanced Membranes and Porous Materials Center, Physical Sciences and Engineering Division, Thuwal, 23955-6900, Saudi Arabia
| | - Zhiwei Qiao
- Guangzhou Key Laboratory for New Energy and Green Catalysis, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, 510006, P. R. China
| | - Yi Di Yuan
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Shing Bo Peh
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Jian Zhang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Leilei Shi
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Hong Liang
- Guangzhou Key Laboratory for New Energy and Green Catalysis, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, 510006, P. R. China
| | - Yu Han
- King Abdullah University of Science and Technology (KAUST), Advanced Membranes and Porous Materials Center, Physical Sciences and Engineering Division, Thuwal, 23955-6900, Saudi Arabia
| | - Xiaopeng Li
- Department of Chemistry, University of South Florida, Tampa, FL, 33620, USA
| | - Jianwen Jiang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Dan Zhao
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
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33
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Jiang ZG, Wu X, Xu ZX, Zhan CH, Zhang J. Synthesis and photocatalytic activities of two homochiral metal–organic frameworks with cages and hydrogen bonding helices. CrystEngComm 2020. [DOI: 10.1039/d0ce00700e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Two homochiral metal–organic frameworks with M3L2 cages exhibit interesting hydrogen bonding helices and excellent photocatalytic activity.
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Affiliation(s)
- Zhan-Guo Jiang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Material
- College of Chemistry and Life Sciences
- Institute of Physical Chemistry
- Zhejiang Normal University
- Jinhua
| | - Xin Wu
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter
- The Chinese Academy of Sciences
- Fuzhou
- P. R. China
| | - Zhong-Xuan Xu
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter
- The Chinese Academy of Sciences
- Fuzhou
- P. R. China
| | - Cai-Hong Zhan
- Key Laboratory of the Ministry of Education for Advanced Catalysis Material
- College of Chemistry and Life Sciences
- Institute of Physical Chemistry
- Zhejiang Normal University
- Jinhua
| | - Jian Zhang
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter
- The Chinese Academy of Sciences
- Fuzhou
- P. R. China
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34
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Zhou Y, Li H, Zhu T, Gao T, Yan P. A Highly Luminescent Chiral Tetrahedral Eu 4L 4(L') 4 Cage: Chirality Induction, Chirality Memory, and Circularly Polarized Luminescence. J Am Chem Soc 2019; 141:19634-19643. [PMID: 31747264 DOI: 10.1021/jacs.9b07178] [Citation(s) in RCA: 114] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Chiral lanthanide cages with circularly polarized luminescence (CPL) properties have found potential application in enantioselective guest recognition and sensing. However, it still remains a big challenge to develop a simple and robust method for the diastereoselective assembly of homochiral lanthanide cages in view of the large lability of the Ln(III) ions. Herein, we report the first example of the formation of a enantiopure lanthanide tetrahedral cage via a chiral ancillary ligand induction strategy. One such cage, (Eu4L4)(R/S-BINAPO)4, is assembled by four achiral C3-symmeric tris(β-diketones) (4,4',4″-tris(4,4,4-trifluoro-1,3-dioxobutyl)triphenylamine, L) as faces, four Eu(III) ions as vertices and four chiral R-/S-bis(diphenylphosphoryl)-1,1'-binaphthyl (R/S-BINAPO) as ancillary ligands. X-ray crystallography and NMR and CD spectra confirm the formation of a pair of enantiopure chiral topological tetrahedral cages, (Eu4L4)(R-BINAPO)4 and (Eu4L4)(S-BINAPO)4 (ΔΔΔΔ-1 and ΛΛΛΛ-1). As expected, the tetrahedral cages present strong CPL with |glum| values up to 0.20, while they unexpectedly give ultrahigh luminescent quantum yields (QYs) of up to 81%, the highest value reported in chiral Ln(III) complexes. More impressively, the chiral memory effect for a lanthanide-based assembly is observed for the first time. The chirality of the original cage 1 framework is retained after R/S-BINAPO is replaced by the achiral bis[2-(diphenylphosphino)phenyl] ether oxide (DPEPO), and thus another pair of enantiopure Eu(III) tetrahedral cages, ΔΔΔΔ- and ΛΛΛΛ-[(Eu4L4)(DPEPO)4] (ΔΔΔΔ-2 and ΛΛΛΛ-2), have been isolated. Encouragingly, cage 2 also presents an impressive luminescence quantum yield (QY = 68%) and intense CPL (|glum| = 0.11). This study offers a simple and low-cost synthesis strategy for the preparation of lanthanide cages with CPL properties.
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Affiliation(s)
- Yanyan Zhou
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science , Heilongjiang University , Harbin 150080 , People's Republic of China
| | - Hongfeng Li
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science , Heilongjiang University , Harbin 150080 , People's Republic of China
| | - Tianyu Zhu
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science , Heilongjiang University , Harbin 150080 , People's Republic of China
| | - Ting Gao
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science , Heilongjiang University , Harbin 150080 , People's Republic of China
| | - Pengfei Yan
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science , Heilongjiang University , Harbin 150080 , People's Republic of China
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35
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He LX, Tian CR, Zhang JH, Xu W, Peng B, Xie SM, Zi M, Yuan LM. Chiral metal-organic cages used as stationary phase for enantioseparations in capillary electrochromatography. Electrophoresis 2019; 41:104-111. [PMID: 31709552 DOI: 10.1002/elps.201900294] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 10/05/2019] [Accepted: 10/23/2019] [Indexed: 11/10/2022]
Abstract
Since some metal-organic cages (MOCs) have been synthesized in past several years, the applications of MOCs such as drug delivery, molecular recognition, separation, catalysis, and gas storage, etc. have been witnessed with a significant increase. However, to the best of our knowledge, so far no one has used MOCs as chiral stationary phase to separate chiral compounds in CEC. In this study, three MOCs were developed as the stationary phase for CEC separation of enantiomers. The MOCs coated capillary column showed good chiral recognition ability for some chiral compounds, including amine, alcohols, ketone, etc. The influence of buffer concentration, applied voltage, pH of buffer solution on the chiral separations was also investigated. The RSDs of run-to-run, day-to-day, and column-to-column for retention time were 2.1-4.67%, 1.2-4.36%, and 3.62-6.43%, respectively. This work reveals that the chiral MOCs material is feasible for the enantioseparation in CEC.
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Affiliation(s)
- Li-Xiao He
- Department of Chemistry, Yunnan Normal University, Kunming, P. R. China
| | - Chun-Rong Tian
- Department of Chemistry, Yunnan Normal University, Kunming, P. R. China
| | - Jun-Hui Zhang
- Department of Chemistry, Yunnan Normal University, Kunming, P. R. China
| | - Wen Xu
- Department of Chemistry, Yunnan Normal University, Kunming, P. R. China
| | - Bo Peng
- Department of Chemistry, Yunnan Normal University, Kunming, P. R. China
| | - Sheng-Ming Xie
- Department of Chemistry, Yunnan Normal University, Kunming, P. R. China
| | - Min Zi
- Department of Chemistry, Yunnan Normal University, Kunming, P. R. China
| | - Li-Ming Yuan
- Department of Chemistry, Yunnan Normal University, Kunming, P. R. China
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36
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Cation-induced chirality in a bifunctional metal-organic framework for quantitative enantioselective recognition. Nat Commun 2019; 10:5117. [PMID: 31712651 PMCID: PMC6848213 DOI: 10.1038/s41467-019-13090-9] [Citation(s) in RCA: 111] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Accepted: 10/15/2019] [Indexed: 12/15/2022] Open
Abstract
The integration of luminescence and chirality in easy-scalable metal-organic frameworks gives rise to the development of advanced luminescent sensors. To date, the synthesis of chiral metal-organic frameworks is poorly predictable and their chirality primarily originates from components that constitute the frameworks. By contrast, the introduction of chirality into the pores of metal-organic frameworks has not been explored to the best of our knowledge. Here, we demonstrate that chirality can be introduced into an anionic Zn-based metal-organic framework via simple cation exchange, yielding dual luminescent centers comprised of the ligand and Tb3+ ions, accompanied by a chiral center in the pores. This bifunctional material shows enantioselectivity luminescent sensing for a mixture of stereoisomers, demonstrated for Cinchonine and Cinchonidine epimers and amino alcohol enantiomers, from which the quantitative determination of the stereoisomeric excess has been obtained. This study paves a pathway for the design of multifunctional metal-organic framework systems as a useful method for rapid sensing of chiral molecules.
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37
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Xie MH, Cheng F, Wang Y, Yao BX, Wang W, Guan RF, Yang XL. QCM based enantioselective discrimination of enantiomers by a pair of serine derived homochiral coordination polymers. Biosens Bioelectron 2019; 144:111667. [DOI: 10.1016/j.bios.2019.111667] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Revised: 08/27/2019] [Accepted: 08/29/2019] [Indexed: 01/20/2023]
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38
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Zhang J, Xie S, Zi M, Yuan L. Recent advances of application of porous molecular cages for enantioselective recognition and separation. J Sep Sci 2019; 43:134-149. [DOI: 10.1002/jssc.201900762] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 09/15/2019] [Accepted: 09/27/2019] [Indexed: 12/20/2022]
Affiliation(s)
- Jun‐Hui Zhang
- Department of ChemistryYunnan Normal University Kunming P. R. China
| | - Sheng‐Ming Xie
- Department of ChemistryYunnan Normal University Kunming P. R. China
| | - Min Zi
- Department of ChemistryYunnan Normal University Kunming P. R. China
| | - Li‐Ming Yuan
- Department of ChemistryYunnan Normal University Kunming P. R. China
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39
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Zhao T, Han J, Jin X, Liu Y, Liu M, Duan P. Enhanced Circularly Polarized Luminescence from Reorganized Chiral Emitters on the Skeleton of a Zeolitic Imidazolate Framework. Angew Chem Int Ed Engl 2019; 58:4978-4982. [DOI: 10.1002/anie.201900052] [Citation(s) in RCA: 85] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Revised: 02/11/2019] [Indexed: 12/29/2022]
Affiliation(s)
- Tonghan Zhao
- Division of NanophotonicsCAS Center for Excellence in NanoscienceCAS Key Laboratory of Nanosystem and Hierarchical FabricationNational Center for Nanoscience and Technology (NCNST) No.11, ZhongGuanCun BeiYiTiao Beijing 100190 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Jianlei Han
- Division of NanophotonicsCAS Center for Excellence in NanoscienceCAS Key Laboratory of Nanosystem and Hierarchical FabricationNational Center for Nanoscience and Technology (NCNST) No.11, ZhongGuanCun BeiYiTiao Beijing 100190 P. R. China
| | - Xue Jin
- Division of NanophotonicsCAS Center for Excellence in NanoscienceCAS Key Laboratory of Nanosystem and Hierarchical FabricationNational Center for Nanoscience and Technology (NCNST) No.11, ZhongGuanCun BeiYiTiao Beijing 100190 P. R. China
| | - Yan Liu
- School of Chemistry and Chemical EngineeringShanghai Jiao Tong University Shanghai 200240 P. R. China
| | - Minghua Liu
- Division of NanophotonicsCAS Center for Excellence in NanoscienceCAS Key Laboratory of Nanosystem and Hierarchical FabricationNational Center for Nanoscience and Technology (NCNST) No.11, ZhongGuanCun BeiYiTiao Beijing 100190 P. R. China
- Beijing National Laboratory for Molecular ScienceCAS Key Laboratory of Colloid, Interface and Chemical ThermodynamicsInstitute of ChemistryChinese Academy of Sciences No.2, ZhongGuanCun BeiYiJie Beijing 100190 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Pengfei Duan
- Division of NanophotonicsCAS Center for Excellence in NanoscienceCAS Key Laboratory of Nanosystem and Hierarchical FabricationNational Center for Nanoscience and Technology (NCNST) No.11, ZhongGuanCun BeiYiTiao Beijing 100190 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
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40
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Ousaka N, Yamamoto S, Iida H, Iwata T, Ito S, Hijikata Y, Irle S, Yashima E. Water-mediated deracemization of a bisporphyrin helicate assisted by diastereoselective encapsulation of chiral guests. Nat Commun 2019; 10:1457. [PMID: 30926811 PMCID: PMC6441078 DOI: 10.1038/s41467-019-09443-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Accepted: 03/06/2019] [Indexed: 11/19/2022] Open
Abstract
Deracemization is a powerful method by which a racemic mixture can be transformed into an excess of one enantiomer with the aid of chiral auxiliaries, but has been applied only to small chiral molecular systems. Here we report a deracemization of a racemic double-stranded spiroborate helicate containing a bisporphyrin unit upon encapsulation of chiral aromatic guests between the bisporphyrin. The chiral guest-included helicate is kinetically stable, existing as a mixture of right- and left-handed double helices, which eventually undergo an inversion of the helicity triggered by water resulting from the water-mediated reversible diastereoselective B-O bond cleavage/reformation of the spiroborate groups, thus producing an optically-active helicate with a high enantioselectivity. Quantum chemical calculations suggest that the stereospecific CH-π interactions between the porphyrin hydrogen atoms of the helicate and an aromatic pendant group of the chiral guest play a key role in the enhancement of the helical handedness of the helicate. Deracemization is a powerful method which allows transformation of racemic mixtures into excess enantiomer, but was applied only to small chiral molecular systems so far. Here the authors report deracemization of a kinetically stable bisporphyrin helicate upon encapsulation of chiral aromatic guests.
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Affiliation(s)
- Naoki Ousaka
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Nagoya, 464-8603, Japan.,Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Nagoya, 464-8603, Japan
| | - Shinya Yamamoto
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Nagoya, 464-8603, Japan
| | - Hiroki Iida
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Nagoya, 464-8603, Japan.,Department of Chemistry, Graduate School of Natural Science and Technology, Shimane University, 1060 Nishikawatsu, Matsue, 690-8504, Japan
| | - Takuya Iwata
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Nagoya, 464-8603, Japan
| | - Shingo Ito
- Department of Chemistry, Graduate School of Science, Nagoya University, Nagoya, 464-8602, Japan
| | - Yuh Hijikata
- Department of Chemistry, Graduate School of Science, Nagoya University, Nagoya, 464-8602, Japan.,Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Nagoya, 464-8601, Japan
| | - Stephan Irle
- Department of Chemistry, Graduate School of Science, Nagoya University, Nagoya, 464-8602, Japan.,Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Nagoya, 464-8601, Japan.,Computational Sciences & Engineering Division, Oak Ridge National Laboratory, Oak Ridge, 37831-6493, TN, USA
| | - Eiji Yashima
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Nagoya, 464-8603, Japan. .,Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Nagoya, 464-8603, Japan.
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41
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Zhao T, Han J, Jin X, Liu Y, Liu M, Duan P. Enhanced Circularly Polarized Luminescence from Reorganized Chiral Emitters on the Skeleton of a Zeolitic Imidazolate Framework. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201900052] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Tonghan Zhao
- Division of NanophotonicsCAS Center for Excellence in NanoscienceCAS Key Laboratory of Nanosystem and Hierarchical FabricationNational Center for Nanoscience and Technology (NCNST) No.11, ZhongGuanCun BeiYiTiao Beijing 100190 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Jianlei Han
- Division of NanophotonicsCAS Center for Excellence in NanoscienceCAS Key Laboratory of Nanosystem and Hierarchical FabricationNational Center for Nanoscience and Technology (NCNST) No.11, ZhongGuanCun BeiYiTiao Beijing 100190 P. R. China
| | - Xue Jin
- Division of NanophotonicsCAS Center for Excellence in NanoscienceCAS Key Laboratory of Nanosystem and Hierarchical FabricationNational Center for Nanoscience and Technology (NCNST) No.11, ZhongGuanCun BeiYiTiao Beijing 100190 P. R. China
| | - Yan Liu
- School of Chemistry and Chemical EngineeringShanghai Jiao Tong University Shanghai 200240 P. R. China
| | - Minghua Liu
- Division of NanophotonicsCAS Center for Excellence in NanoscienceCAS Key Laboratory of Nanosystem and Hierarchical FabricationNational Center for Nanoscience and Technology (NCNST) No.11, ZhongGuanCun BeiYiTiao Beijing 100190 P. R. China
- Beijing National Laboratory for Molecular ScienceCAS Key Laboratory of Colloid, Interface and Chemical ThermodynamicsInstitute of ChemistryChinese Academy of Sciences No.2, ZhongGuanCun BeiYiJie Beijing 100190 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Pengfei Duan
- Division of NanophotonicsCAS Center for Excellence in NanoscienceCAS Key Laboratory of Nanosystem and Hierarchical FabricationNational Center for Nanoscience and Technology (NCNST) No.11, ZhongGuanCun BeiYiTiao Beijing 100190 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
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42
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Pan M, Wu K, Zhang JH, Su CY. Chiral metal–organic cages/containers (MOCs): From structural and stereochemical design to applications. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2017.10.031] [Citation(s) in RCA: 127] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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43
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Lu Z, Lu X, Zhong Y, Hu Y, Li G, Zhang R. Carbon dot-decorated porous organic cage as fluorescent sensor for rapid discrimination of nitrophenol isomers and chiral alcohols. Anal Chim Acta 2018; 1050:146-153. [PMID: 30661582 DOI: 10.1016/j.aca.2018.11.006] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2018] [Revised: 10/23/2018] [Accepted: 11/02/2018] [Indexed: 12/24/2022]
Abstract
Isomers discrimination plays a vital role in modern chemistry, and development of efficient and rapid method to achieve this aim has attracted a great deal of interest. In this work, a novel carbon dot-decorated chiral porous organic cage hybrid nanocomposite (CD@RCC3) was prepared and used to fabricate fluorescent sensor. The resultant CD@RCC3 was characterized by using a range of techniques, finding that CD@RCC3 possesses strong and stable fluorescent property in common organic solvents, especially it exhibits chiral property. The potential application of CD@RCC3 in fluorescence sensing was demonstrated by isomers discrimination. The designed sensor was successfully used to rapid discriminate nitrophenol isomers. Meanwhile, it exhibited differentiation ability towards phenylalaninol and phenylethanol enantiomers. Our work enriches the type of synthetic materials for fluorescence sensing, and provides a simple method for distinguishing structural isomers and chiral isomers.
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Affiliation(s)
- Zhenyu Lu
- School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China
| | - Xiaotian Lu
- School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China
| | - Yanhui Zhong
- School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China
| | - Yufei Hu
- School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China
| | - Gongke Li
- School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China.
| | - Runkun Zhang
- School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China.
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44
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Tian Y, Wang G, Ma Z, Xu L, Wang H. Homochiral Double Helicates Based on Cyclooctatetrathiophene: Chiral Self-Sorting with the Intramolecular S⋅⋅⋅N Interaction. Chemistry 2018; 24:15993-15997. [DOI: 10.1002/chem.201803948] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Indexed: 01/31/2023]
Affiliation(s)
- Yu Tian
- Engineering Research Center for Nanomaterials; Henan University; Kaifeng 475004 P. R. China
| | - Guangxia Wang
- Engineering Research Center for Nanomaterials; Henan University; Kaifeng 475004 P. R. China
| | - Zhiying Ma
- Engineering Research Center for Nanomaterials; Henan University; Kaifeng 475004 P. R. China
| | - Li Xu
- College of Chemistry and Chemical Engineering; Henan University; Kaifeng 475004 P. R. China
| | - Hua Wang
- Engineering Research Center for Nanomaterials; Henan University; Kaifeng 475004 P. R. China
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45
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Li LP, Peng HL, Ye BH. Chiral sensor for enantiomeric purity of amines, amino alcohols and amino esters based on bis-cyclometalated Ir(III) complex using 1H NMR spectroscopy. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2018.07.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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46
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Xie SM, Fu N, Li L, Yuan BY, Zhang JH, Li YX, Yuan LM. Homochiral Metal–Organic Cage for Gas Chromatographic Separations. Anal Chem 2018; 90:9182-9188. [DOI: 10.1021/acs.analchem.8b01670] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Sheng-Ming Xie
- Department of Chemistry, Yunnan Normal University, Kunming 650500, People’s Republic of China
| | - Nan Fu
- Department of Chemistry, Yunnan Normal University, Kunming 650500, People’s Republic of China
| | - Li Li
- Department of Chemistry, Yunnan Normal University, Kunming 650500, People’s Republic of China
| | - Bao-Yan Yuan
- Department of Chemistry, Yunnan Normal University, Kunming 650500, People’s Republic of China
| | - Jun-Hui Zhang
- Department of Chemistry, Yunnan Normal University, Kunming 650500, People’s Republic of China
| | - Yan-Xia Li
- Department of Chemistry, Yunnan Normal University, Kunming 650500, People’s Republic of China
| | - Li-Ming Yuan
- Department of Chemistry, Yunnan Normal University, Kunming 650500, People’s Republic of China
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47
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Govindarajan R, Divya D, Nagarajaprakash R, Manimaran B. Synthesis and Characterization of Aminoquinonato Bridged Re(I)-Based Amide Functionalized Dinuclear Metallastirrups and Tetranuclear Lemniscate Metallacycles. ChemistrySelect 2018. [DOI: 10.1002/slct.201800296] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
| | - Dhanaraj Divya
- Department of Chemistry; Pondicherry University; Puducherry 605014 India
| | | | - Bala. Manimaran
- Department of Chemistry; Pondicherry University; Puducherry 605014 India
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48
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Abstract
Over the past few decades, supramolecular chirality in discrete metallosupramolecular architectures has received considerable attention. In this review, a comprehensive summary of discrete, chiral coordination-driven structures, including helices, metallacycles, metallocages, etc., is presented. Although chirality can be introduced prior to, during or even after the coordination self-assembly process, this review puts major emphasis on the more recent development of metallosupramolecular architectures from chiral components, where chirality arises from the enantiopure or racemic scaffolds (bridging or auxiliary ligand). Special attention will be paid to homochiral metallo-assemblies using achiral components where chirality is obtained as a consequence of the twisting of the ligands. Additionally, the potential applications of homochiral metallosupramolecular architectures are also discussed. We hope that this review will be of interest to researchers attempting to design new elaborate homochiral metallosupramolecular architectures with even greater complexity and potential for functions such as chiral recognition, enantiomer separation, asymmetric catalysis, nonlinear sensors, and devices.
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Affiliation(s)
- Li-Jun Chen
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, Shanghai 200062, P. R. China.
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49
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Dong J, Li X, Zhang K, Di Yuan Y, Wang Y, Zhai L, Liu G, Yuan D, Jiang J, Zhao D. Confinement of Aggregation-Induced Emission Molecular Rotors in Ultrathin Two-Dimensional Porous Organic Nanosheets for Enhanced Molecular Recognition. J Am Chem Soc 2018; 140:4035-4046. [DOI: 10.1021/jacs.7b13069] [Citation(s) in RCA: 97] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Jinqiao Dong
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore
| | - Xu Li
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore
| | - Kang Zhang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore
| | - Yi Di Yuan
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore
| | - Yuxiang Wang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore
| | - Linzhi Zhai
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore
| | - Guoliang Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore
| | - Daqiang Yuan
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Jianwen Jiang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore
| | - Dan Zhao
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore
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50
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Rajasekar P, Pandey S, Paithankar H, Chugh J, Steiner A, Boomishankar R. Imido-P(v) trianion supported enantiopure neutral tetrahedral Pd(ii) cages. Chem Commun (Camb) 2018; 54:1873-1876. [PMID: 29389000 DOI: 10.1039/c8cc00207j] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Charge-neutral chiral hosts are attractive due to their ability to recognize a wide range of guest functionalities and support enantioselective processes. However, reports on such charge-neutral cages are very scarce in the literature. Here, we report an enantiomeric pair of tetrahedral Pd(ii) cages built from chiral tris(imido)phosphate trianions and oxalate linkers, which exhibit enantioselective separation capabilities for epichlorohydrin, β-butyrolactone, and 3-methyl- and 3-ethyl cyclopentanone.
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Affiliation(s)
- Prabhakaran Rajasekar
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Pune, Dr HomiBhabha Road, Pune - 411008, India.
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