1
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Sumida R, Catti L, Yoshizawa M. Bioinspired Binding and Conversion of Linear Monoterpenes by Polyaromatic Coordination Capsules. ACS ORGANIC & INORGANIC AU 2024; 4:410-417. [PMID: 39132015 PMCID: PMC11311458 DOI: 10.1021/acsorginorgau.4c00013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 05/05/2024] [Accepted: 05/06/2024] [Indexed: 08/13/2024]
Abstract
Linear monoterpenes, versatile reaction biosubstrates, are bound and subsequently converted to various cyclic monomers and oligomers with excellent selectivity and efficiency, only in natural enzymes. We herein report bioinspired functions of synthetic polyaromatic cavities toward linear monoterpenes in the solution and solid states. The cavities are provided by polyaromatic coordination capsules, formed by the assembly of Pt(II) ions and bent bispyridine ligands with two anthracene panels. By using the capsule cavities, the selective binding of citronellal from mixtures with other monoterpenes and its preferential vapor binding over its derivatives are demonstrated in water and in the solid state, respectively. The capsule furthermore extracts p-menthane-3,8-diol, with high product- and stereoselectivity, from a reaction mixture obtained by the acid-catalyzed cyclization of citronellal in water. Thanks to the inner and outer polyaromatic cavities, the catalytic cyclization-dimerization of vaporized citronellal efficiently proceeds in the acid-loaded capsule solid and product/stereoselectively affords p-menthane-3,8-diol citronellal acetal (∼330% yield based on the capsule) under ambient conditions. The solid capsule reactor can be reused at least 5 times with enhanced conversion. The present study opens up a new approach toward mimicking terpene biosynthesis via synthetic polyaromatic cavities.
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Affiliation(s)
- Ryuki Sumida
- Laboratory for Chemistry
and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Lorenzo Catti
- Laboratory for Chemistry
and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Michito Yoshizawa
- Laboratory for Chemistry
and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
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2
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van Hilst QVC, Pearcy AC, Preston D, Wright LJ, Hartinger CG, Brooks HJL, Crowley JD. A dynamic covalent approach to [Pt nL 2n] 2n+ cages. Chem Commun (Camb) 2024; 60:4302-4305. [PMID: 38530770 DOI: 10.1039/d4cc00323c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/28/2024]
Abstract
A dynamic covalent approach was exploited to generate a family of homometallic [PtnL2n]2n+ cage (predominantly [Pt2L4]4+ systems) architectures. The family of platinum(II) architectures were characterized using 1H nuclear magnetic resonance (NMR) and diffusion ordered spectroscopy (DOSY), electrospray ionization mass spectrometry (ESI-MS) and the molecular structures of two cages were determined by X-ray crystallography.
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Affiliation(s)
- Quinn V C van Hilst
- Department of Chemistry, University of Otago, PO Box 56, Dunedin 9054, New Zealand.
- The MacDiarmid Institute, Wellington 6140, New Zealand
| | - Aston C Pearcy
- Department of Chemistry, University of Otago, PO Box 56, Dunedin 9054, New Zealand.
- The MacDiarmid Institute, Wellington 6140, New Zealand
| | - Dan Preston
- Research School of Chemistry, Australian National University, Canberra ACT 0200, Australia
| | - L James Wright
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Christian G Hartinger
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Heather J L Brooks
- Department of Pathology, University of Otago, PO Box 56, Dunedin 9054, New Zealand
| | - James D Crowley
- Department of Chemistry, University of Otago, PO Box 56, Dunedin 9054, New Zealand.
- The MacDiarmid Institute, Wellington 6140, New Zealand
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3
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Ghanbari B, Asadi Mofarrah L, Clegg JK. Selective Supramolecular Recognition of Nitroaromatics by a Fluorescent Metal-Organic Cage Based on a Pyridine-Decorated Dibenzodiaza-Crown Macrocyclic Co(II) Complex. Inorg Chem 2023; 62:7434-7445. [PMID: 37134276 DOI: 10.1021/acs.inorgchem.3c00693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Two isomorphous fluorescent (FL) lantern-shaped metal-organic cages 1 and 2 were prepared by coordination-directed self-assembly of Co(II) centers with a new aza-crown macrocyclic ligand bearing pyridine pendant arms (Lpy). The cage structures were determined using single-crystal X-ray diffraction analysis, thermogravimetric, elemental microanalysis, FT-IR spectroscopy, and powder X-ray diffraction. The crystal structures of 1 and 2 show that anions (Cl- in 1 and Br- in 2) are encapsulated within the cage cavity. 1 and 2 bear two coordinated water molecules that are directed inside the cages, surrounded by the eight pyridine rings at the "bottom" and the "roof" of the cage. These hydrogen bond donors, π systems, and the cationic nature of the cages enable 1 and 2 to encapsulate the anions. FL experiments revealed that 1 could detect nitroaromatic compounds by exhibiting selective and sensitive fluorescence quenching toward p-nitroaniline (PNA), recommending a limit of detection of 4.24 ppm. Moreover, the addition of 50 μL of PNA and o-nitrophenol to the ethanolic suspension of 1 led to a significant large FL red shift, namely, 87 and 24 nm, respectively, which were significantly higher than the corresponding values observed in the presence of other nitroaromatic compounds. The titration of the ethanolic suspension of 1, with various concentrations of PNA (>12 μM) demonstrated a concentration-dependent emission red shift. Hence, the efficient FL quenching of 1 was capable of distinguishing the dinitrobenzene isomers. Meanwhile, the observed red shift (10 nm) and quenching of this emission band under the influence of a trace amount of o- and p-nitrophenol isomers also showed that 1 could discriminate between o- and p-nitrophenol. Replacement of the chlorido with a bromido ligand in 1 generated cage 2 which was a more electron-donating cage than 1. The FL experiments showed that 2 was partially more sensitive and less selective toward NACs than 1.
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Affiliation(s)
- Bahram Ghanbari
- Department of Chemistry, Sharif University of Technology, P.O. Box 11155-3516, Tehran, Iran
| | - Leila Asadi Mofarrah
- Department of Chemistry, Sharif University of Technology, P.O. Box 11155-3516, Tehran, Iran
| | - Jack K Clegg
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Queensland 4072, Australia
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4
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Vasdev RAS, Preston D, Casey-Stevens CA, Martí-Centelles V, Lusby PJ, Garden AL, Crowley JD. Exploiting Supramolecular Interactions to Control Isomer Distributions in Reduced-Symmetry [Pd 2L 4] 4+ Cages. Inorg Chem 2023; 62:1833-1844. [PMID: 35604785 DOI: 10.1021/acs.inorgchem.2c00937] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
High-symmetry metallosupramolecular architectures (MSAs) have been exploited for a range of applications including molecular recognition, catalysis, and drug delivery. Recently, there have been increasing efforts to enhance those applications by generating reduced-symmetry MSAs. Here we report our attempts to use supramolecular (dispersion and hydrogen-bonding) forces and solvophobic effects to generate isomerically pure [Pd2(L)4]4+ cage architectures from a family of new reduced-symmetry ditopic tripyridyl ligands. The reduced-symmetry tripyridyl ligands featured either solvophilic polyether chains, solvophobic alkyl chains, or amino substituents. We show using NMR spectroscopy, high-performance liquid chromatography, X-ray diffraction data, and density functional theory calculations that the combination of dispersion forces and solvophobic effects does not provide any control of the [Pd2(L)4]4+ isomer distribution with mixtures of all four cage isomers (HHHH, HHHT, cis-HHTT, or trans-HTHT, where H = head and T = tail) obtained in each case. More control was obtained by exploiting hydrogen-bonding interactions between amino units. While the cage assembly with a 3-amino-substituted tripyridyl ligand leads to a mixture of all four possible isomers, the related 2-amino-substituted tripyridyl ligand generated a cis-HHTT cage architecture. Formation of the cis-HHTT [Pd2(L)4]4+ cage was confirmed using NMR studies and X-ray crystallography.
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Affiliation(s)
- Roan A S Vasdev
- Department of Chemistry, University of Otago, P.O. Box 56, Dunedin 9054, New Zealand.,MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington 6012, New Zealand
| | - Dan Preston
- Department of Chemistry, University of Otago, P.O. Box 56, Dunedin 9054, New Zealand.,MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington 6012, New Zealand
| | - Caitlin A Casey-Stevens
- Department of Chemistry, University of Otago, P.O. Box 56, Dunedin 9054, New Zealand.,MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington 6012, New Zealand
| | - Vicente Martí-Centelles
- EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh EH9 3FJ, Scotland
| | - Paul J Lusby
- EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh EH9 3FJ, Scotland
| | - Anna L Garden
- Department of Chemistry, University of Otago, P.O. Box 56, Dunedin 9054, New Zealand.,MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington 6012, New Zealand
| | - James D Crowley
- Department of Chemistry, University of Otago, P.O. Box 56, Dunedin 9054, New Zealand.,MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington 6012, New Zealand
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5
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Sumida R, Matsumoto T, Yokoi T, Yoshizawa M. A Porous Polyaromatic Solid for Vapor Adsorption of Xylene with High Efficiency, Selectivity, and Reusability. Chemistry 2022; 28:e202202825. [PMID: 36129172 PMCID: PMC10092481 DOI: 10.1002/chem.202202825] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Indexed: 12/29/2022]
Abstract
Development of porous materials capable of capturing volatile organic compounds (VOCs), such as benzene and its derivatives, with high efficiency, selectivity, and reusability is highly demanded. Here we report unusual vapor adsorption behavior toward VOCs by a new porous solid, composed of a polyaromatic capsule bearing a spherical nanocavity with subnano-sized windows. Without prior crystallization and high-temperature vacuum drying, the porous polyaromatic solid exhibits the following five features: vapor adsorption of benzene over cyclohexane with 90 % selectivity, high affinity toward o-xylene over benzene and toluene with >80 % selectivity, ortho-selective adsorption ability (>50 %) from mixed xylene isomers, tight VOCs storage even under high temperature and vacuum conditions, and at least 5 times reusability for xylene adsorption. The observed adsorption abilities are accomplished at ambient temperature and pressure within 1 h, which has not been demonstrated by organic/inorganic porous materials reported previously.
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Affiliation(s)
- Ryuki Sumida
- Laboratory for Chemistry and Life Science, Institute of Innovative Research Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, 226-8503, Japan
| | - Takeshi Matsumoto
- Nanospace Catalysis Unit Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, 226-8503, Japan
| | - Toshiyuki Yokoi
- Nanospace Catalysis Unit Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, 226-8503, Japan
| | - Michito Yoshizawa
- Laboratory for Chemistry and Life Science, Institute of Innovative Research Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, 226-8503, Japan
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7
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Bobylev EO, Poole DA, de Bruin B, Reek JNH. M 6L 12 Nanospheres with Multiple C 70 Binding Sites for 1O 2 Formation in Organic and Aqueous Media. J Am Chem Soc 2022; 144:15633-15642. [PMID: 35977385 PMCID: PMC9437924 DOI: 10.1021/jacs.2c05507] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
![]()
Singlet oxygen is a potent oxidant with major applications
in organic
synthesis and medicinal treatment. An efficient way to produce singlet
oxygen is the photochemical generation by fullerenes which exhibit
ideal thermal and photochemical stability. In this contribution we
describe readily accessible M6L12 nanospheres
with unique binding sites for fullerenes located at the windows of
the nanospheres. Up to four C70 can be associated with
a single nanosphere, presenting an efficient method for fullerene
extraction and application. Depending on the functionality located
on the outside of the sphere, they act as vehicles for 1O2 generation in organic or in aqueous media using white
LED light. Excellent productivity in 1O2 generation
and consecutive oxidation of 1O2 acceptors using
C70⊂[Pd6L12], C60⊂[Pd6L12] or fullerene soot extract
was observed. The methodological design principles allow preparation
and application of highly effective multifullerene binding spheres.
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Affiliation(s)
- Eduard O Bobylev
- van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam The Netherlands
| | - David A Poole
- van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam The Netherlands
| | - Bas de Bruin
- van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam The Netherlands
| | - Joost N H Reek
- van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam The Netherlands
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Brechin EK, Singh M, Etcheverry-Berríos A, Vallejo J, Sanz S, Martínez-Lillo J, Nichol GS, Lusby P. Guest-induced magnetic exchange in paramagnetic [M 2L 4] 4+ coordination cages. Dalton Trans 2022; 51:8377-8381. [DOI: 10.1039/d2dt01385a] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Paramagnetic complexes that show magnetically switchable properties show promise in a number of applications. A significantly underdeveloped approach is the use of metallocages, whose magnetic properties can be modulated through...
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9
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Wang C, Shang J, Tian L, Zhao H, Wang P, Feng K, He G, Liu JZ, Zhu W, Li G. Direct identification of HMX via guest-induced fluorescence turn-on of molecular cage. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.05.051] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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10
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Antipin IS, Alfimov MV, Arslanov VV, Burilov VA, Vatsadze SZ, Voloshin YZ, Volcho KP, Gorbatchuk VV, Gorbunova YG, Gromov SP, Dudkin SV, Zaitsev SY, Zakharova LY, Ziganshin MA, Zolotukhina AV, Kalinina MA, Karakhanov EA, Kashapov RR, Koifman OI, Konovalov AI, Korenev VS, Maksimov AL, Mamardashvili NZ, Mamardashvili GM, Martynov AG, Mustafina AR, Nugmanov RI, Ovsyannikov AS, Padnya PL, Potapov AS, Selektor SL, Sokolov MN, Solovieva SE, Stoikov II, Stuzhin PA, Suslov EV, Ushakov EN, Fedin VP, Fedorenko SV, Fedorova OA, Fedorov YV, Chvalun SN, Tsivadze AY, Shtykov SN, Shurpik DN, Shcherbina MA, Yakimova LS. Functional supramolecular systems: design and applications. RUSSIAN CHEMICAL REVIEWS 2021. [DOI: 10.1070/rcr5011] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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11
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Bobylev E, de Bruin B, Reek JNH. Catalytic Formation of Coordination-Based Self-Assemblies by Halide Impurities. Inorg Chem 2021; 60:12498-12505. [PMID: 34327986 PMCID: PMC8397307 DOI: 10.1021/acs.inorgchem.1c01714] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Indexed: 11/29/2022]
Abstract
The dynamics of metal organic polyhedra (MOP) play a crucial role for their application in catalysis and host-guest chemistry and as functional materials. In this contribution, we study the influence of possible contaminations of different metal precursors on the kinetic properties of MOP. Exemplary five different MOP are studied with metal precursors of varying quality. The metal precursors are either obtained from commercial sources or prepared by various literature procedures. Studies into the self-assembly process using 1H NMR and MS analyses were performed on Pt2L4, Pd2L4, Pd6L12, Pd12L24, and Ni4L6 assemblies. Commonly found impurities are shown to play a prominent role guiding selective formation of MOP, as they allow for an escape from otherwise kinetically trapped intermediates. The energy requirement for selective sphere formation is significantly lowered in many examples providing evidence for a catalytic role of halide impurities/additives in the self-assembly process. Furthermore, even though most analytical features such as 1H NMR and MS analyses show identical results for assemblies with different types of metal precursors, the dynamics of formed assemblies differs significantly if slightly less pure starting materials are used. Tiny amounts of halide contaminations make the MOP more dynamic, which can play an important role for substrate diffusion especially if bulky substrates are used. We believe that this study on the influence of impurities (which were shown to be present in some commercial sources) on the kinetic properties of MOP together with procedures of obtaining high purity metal precursors provides important information for future material preparation and provides a better understanding of already known examples.
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Affiliation(s)
- Eduard.
O. Bobylev
- van ’t Hoff Institute for Molecular
Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Bas de Bruin
- van ’t Hoff Institute for Molecular
Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Joost N. H. Reek
- van ’t Hoff Institute for Molecular
Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
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12
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Timmer BJJ, Bobylev EO, Mooibroek TJ. Comparison of [Pd 2L 4][BF 4] 4 cages for binding of n-octyl glycosides and nitrate (L = isophthalamide or dipicolinamide linked dipyridyl ligand). Org Biomol Chem 2021; 19:6633-6637. [PMID: 34286795 DOI: 10.1039/d1ob01185e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Two dipyridyl ligands were synthesized, where the pyridyl donor fragments were separated by an isophthalamide (1) or a dipicolinamide moiety (2). Both ligands formed [Pd2(Ligand)4][BF4]4 complexes in CD2Cl2 containing 5% dmso-d6. It was found that while [Pd2(1)4][BF4]4 readily binds to n-octyl glycosides and to nitrate anions, [Pd2(2)4][BF4]4 did not. The difference in binding properties could be rationalized based on the reduced flexibility and size of the [Pd2(2)4]2+ cage and/or stronger interior binding of a BF4- counter anion.
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Affiliation(s)
- Brian J J Timmer
- Van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH, Amsterdam, The Netherlands.
| | - Eduard O Bobylev
- Van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH, Amsterdam, The Netherlands.
| | - Tiddo J Mooibroek
- Van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH, Amsterdam, The Netherlands.
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13
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Yan MJ, Liu TF, Huang SL, Yang GY. Bis(β-diketone)-based metallacycles with haloalkane-induced fluorescence enhancement. Dalton Trans 2021; 50:8680-8684. [PMID: 34152331 DOI: 10.1039/d1dt01580j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A series of metallarectangles 1-5 were synthesized by the selective combination of (p-cymene)Ru-corner, bis(β-diketone) arms and bifunctional pyridyl linkers. They exhibited a very rare phenomenon of haloalkane-induced fluorescence enhancement.
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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.
| | - Tian-Fu Liu
- 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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14
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Bobylev EO, Poole Iii DA, de Bruin B, Reek JNH. Selective formation of Pt 12L 24 nanospheres by ligand design. Chem Sci 2021; 12:7696-7705. [PMID: 34168821 PMCID: PMC8188466 DOI: 10.1039/d1sc01295a] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 04/22/2021] [Indexed: 11/29/2022] Open
Abstract
Supramolecular self-assemblies are used across various fields for different applications including their use as containers for catalysts, drugs and fluorophores. M12L24 spheres are among the most studied, as they offer plenty of space for functionalization, yielding systems with unique properties in comparison to their single components. Detailed studies on the formation of M12L24 structures using palladium cornerstones (that have generally dynamic coordination chemistry) aided in the development of synthetic protocols. The more robust platinum-based systems received thus far much less attention. The general use of platinum-based assemblies remains elusive as parameters and design principles of the ligand building blocks are not fully established. As platinum-based nanospheres are more robust due to the kinetically more stable nitrogen-platinum bond, we studied the sphere formation process in detail in order to develop descriptors for the formation of platinum-based nanospheres. In a systematic study, using time-dependent mass spectrometry, 1H-NMR and DOSY NMR, we identified new kinetically trapped intermediates during the formation of Pt12L24 spheres and we developed key parameters for selective formation of Pt12L24 spheres. Molecular mechanics calculations and experimental result support the importance of charge and steric bulk placed at the endo-site of the ditopic linker for selective sphere formation. Applicability of these principles is demonstrated by employing various ditopic ligands with different bend-angles for the synthesis of a range of Pt2L4, Pt3L6, Pt4L8 and Pt12L24 polyhedra with platinum cornerstones in excellent yields, thus paving the way for future applications of well-defined robust platinum nanospheres of different shapes and sizes with the general composition Pt n L2n .
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Affiliation(s)
- Eduard O Bobylev
- Van 't Hoff Institute for Molecular Sciences, University of Amsterdam Science Park 904 1098 XH Amsterdam The Netherlands
| | - David A Poole Iii
- Van 't Hoff Institute for Molecular Sciences, University of Amsterdam Science Park 904 1098 XH Amsterdam The Netherlands
| | - Bas de Bruin
- Van 't Hoff Institute for Molecular Sciences, University of Amsterdam Science Park 904 1098 XH Amsterdam The Netherlands
| | - Joost N H Reek
- Van 't Hoff Institute for Molecular Sciences, University of Amsterdam Science Park 904 1098 XH Amsterdam The Netherlands
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15
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Ahmedova A, Mihaylova R, Stoykova S, Mihaylova V, Paunova-Krasteva T, Mihaylov L, Stoitsova S, Nihtianova D, Momekov G, Momekova D, Yoshizawa M. Enhanced cellular uptake of platinum by a tetracationic Pt(II) nanocapsule and its implications to cancer treatment. Eur J Pharm Sci 2020; 155:105545. [PMID: 32927069 DOI: 10.1016/j.ejps.2020.105545] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 08/09/2020] [Accepted: 09/06/2020] [Indexed: 12/20/2022]
Abstract
Despite the known limitations of cisplatin chemotherapy, the treatment of cancer by platinum-based drugs remains the method of choice for many oncologists. The advancement in drug delivery formulations and protocols of combined treatments provided effective tools to ameliorate the side effects of platinum-based therapies. Another approach to improve the pharmacological profiles of anticancer platinum drugs is to properly modify their structure and composition, which has produced numerous platinum complexes with improved therapeutic effect. Recently, we have demonstrated the strong anticancer potency of supramolecular nanocapsules that form by self-assembly of four bis-anthracene ligands with two metal ions, either Pt(II) or Pd(II). Herein, we focus our study on the Pt(II) nanocapsule and its uptake by two types of cancer cells, suspension cultures of HL-60 cells and the adherent cancer cells HT-29. Comparison of the platinum uptake by cancer cells treated with the nanocapsule and with cisplatin evidenced superior uptake of platinum caused by the nanocapsule, which in HT-29 and HL-60 cells prevails by 21 and 31 times, respectively. Morphological changes in the HL-60 cells induced by the Pt(II) nanocapsule were studied by transmission electron microscopy (TEM) which provided plausible explanation of the uptake results. These data corroborate also with the known nanocapsule's very high cytotoxicity, better selectivity, and lack of cross-resistance with cisplatin. Additionally, our estimations of the drug-drug interactions in combined treatments established the propensity of the nanocapsule to exert supra-additive cytotoxicity in combination with cisplatin against the bladder cancer T-24 cells. All these findings define the scope for more detailed pharmacological characterization of the presented Pt(II) nanocapsule.
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Affiliation(s)
- Anife Ahmedova
- Faculty of Chemistry and Pharmacy, Sofia University, 1, J. Bourchier blvd., Sofia 1164, Bulgaria.
| | - Rositsa Mihaylova
- Faculty of Pharmacy, Medical University - Sofia, 2 Dunav Street, Sofia 1000, Bulgaria
| | - Silviya Stoykova
- Faculty of Chemistry and Pharmacy, Sofia University, 1, J. Bourchier blvd., Sofia 1164, Bulgaria
| | - Veronika Mihaylova
- Faculty of Chemistry and Pharmacy, Sofia University, 1, J. Bourchier blvd., Sofia 1164, Bulgaria
| | - Tsvetelina Paunova-Krasteva
- Department of General Microbiology, The Stefan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, Sofia 1113, Bulgaria
| | - Lyuben Mihaylov
- Faculty of Chemistry and Pharmacy, Sofia University, 1, J. Bourchier blvd., Sofia 1164, Bulgaria
| | - Stoyanka Stoitsova
- Department of General Microbiology, The Stefan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, Sofia 1113, Bulgaria
| | - Diana Nihtianova
- Institute of Mineralogy and Crystallography, Bulgarian Academy of Sciences, Sofia 1113, Bulgaria; Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Sofia 1113, Bulgaria
| | - Georgi Momekov
- Faculty of Pharmacy, Medical University - Sofia, 2 Dunav Street, Sofia 1000, Bulgaria
| | - Denitsa Momekova
- Faculty of Pharmacy, Medical University - Sofia, 2 Dunav Street, Sofia 1000, Bulgaria
| | - Michito Yoshizawa
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
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Yadav S, Kannan P, Qiu G. Cavity-based applications of metallo-supramolecular coordination cages (MSCCs). Org Chem Front 2020. [DOI: 10.1039/d0qo00681e] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
This review describes cavity-based applications of cage-like SCCs such as molecular recognition and separation, stabilization of reactive species by encapsulation, as drug delivery systems and as molecular flasks.
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Affiliation(s)
- Sarita Yadav
- College of Biological
- Chemical Science and Engineering
- Jiaxing University
- Jiaxing 314001
- P. R. China
| | - Palanisamy Kannan
- College of Biological
- Chemical Science and Engineering
- Jiaxing University
- Jiaxing 314001
- P. R. China
| | - Guanyinsheng Qiu
- College of Biological
- Chemical Science and Engineering
- Jiaxing University
- Jiaxing 314001
- P. R. China
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17
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Egger CM, Jakob CHG, Kaiser F, Rindle O, Altmann PJ, Reich RM, Kühn FE. Reactivity Studies of a Dipyridine Ethinyl Ligand with Zinc(II). Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900984] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Christiane M. Egger
- Catalysis Research Center and Department of Chemistry Technische Universität München Lichtenbergstraße 4 85747 Garching bei München Germany
| | - Christian H. G. Jakob
- Catalysis Research Center and Department of Chemistry Technische Universität München Lichtenbergstraße 4 85747 Garching bei München Germany
| | - Felix Kaiser
- Catalysis Research Center and Department of Chemistry Technische Universität München Lichtenbergstraße 4 85747 Garching bei München Germany
| | - Olivia Rindle
- Catalysis Research Center and Department of Chemistry Technische Universität München Lichtenbergstraße 4 85747 Garching bei München Germany
| | - Philipp J. Altmann
- Catalysis Research Center and Department of Chemistry Technische Universität München Lichtenbergstraße 4 85747 Garching bei München Germany
| | - Robert M. Reich
- Catalysis Research Center and Department of Chemistry Technische Universität München Lichtenbergstraße 4 85747 Garching bei München Germany
| | - Fritz E. Kühn
- Catalysis Research Center and Department of Chemistry Technische Universität München Lichtenbergstraße 4 85747 Garching bei München Germany
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18
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Zhu JL, Xu L, Ren YY, Zhang Y, Liu X, Yin GQ, Sun B, Cao X, Chen Z, Zhao XL, Tan H, Chen J, Li X, Yang HB. Switchable organoplatinum metallacycles with high quantum yields and tunable fluorescence wavelengths. Nat Commun 2019; 10:4285. [PMID: 31537803 PMCID: PMC6753206 DOI: 10.1038/s41467-019-12204-7] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Accepted: 08/27/2019] [Indexed: 01/14/2023] Open
Abstract
The preparation of fluorescent discrete supramolecular coordination complexes (SCCs) has attracted considerable attention within the fields of supramolecular chemistry, materials science, and biological sciences. However, many challenges remain. For instance, fluorescence quenching often occurs due to the heavy-atom effect arising from the Pt(II)-based building block in Pt-based SCCs. Moreover, relatively few methods exist for tuning of the emission wavelength of discrete SCCs. Thus, it is still challenging to construct discrete SCCs with high fluorescence quantum yields and tunable fluorescence wavelengths. Here we report nine organoplatinum fluorescent metallacycles that exhibit high fluorescence quantum yields and tunable fluorescence wavelengths through simple regulation of their photoinduced electron transfer (PET) and intramolecular charge transfer (ICT) properties. Moreover, 3D fluorescent films and fluorescent inks for inkjet printing were fabricated using these metallacycles. This work provides a strategy to solve the fluorescence quenching problem arising from the heavy-atom effect of Pt(II), and offers an alternative approach to tune the emission wavelengths of discrete SCCs in the same solvent. Fluorescent supramolecular coordination complexes are of interest for chemical sensing and optical devices. Here the authors synthesize nine organoplatinum metallacycles with high quantum yields, whose fluorescence wavelengths are tuned through manipulation of their photoinduced electron transfer and intramolecular charge transfer properties.
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Affiliation(s)
- Jun-Long Zhu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663N. Zhongshan Road, Shanghai, 200062, China
| | - Lin Xu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663N. Zhongshan Road, Shanghai, 200062, China.
| | - Yuan-Yuan Ren
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663N. Zhongshan Road, Shanghai, 200062, China
| | - Ying Zhang
- College of Chemistry, Beijing Normal University, Beijing, 100050, China
| | - Xi Liu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663N. Zhongshan Road, Shanghai, 200062, China
| | - Guang-Qiang Yin
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663N. Zhongshan Road, Shanghai, 200062, China.,Department of Chemistry, University of South Florida, Tampa, FL, 33620, USA
| | - Bin Sun
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663N. Zhongshan Road, Shanghai, 200062, China
| | - Xiaodan Cao
- State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai, 200062, China
| | - Zhuang Chen
- State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai, 200062, China
| | - Xiao-Li Zhao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663N. Zhongshan Road, Shanghai, 200062, China
| | - Hongwei Tan
- College of Chemistry, Beijing Normal University, Beijing, 100050, China
| | - Jinquan Chen
- State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai, 200062, China
| | - Xiaopeng Li
- Department of Chemistry, University of South Florida, Tampa, FL, 33620, USA
| | - Hai-Bo Yang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663N. Zhongshan Road, Shanghai, 200062, China.
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19
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Yoshizawa M, Catti L. Bent Anthracene Dimers as Versatile Building Blocks for Supramolecular Capsules. Acc Chem Res 2019; 52:2392-2404. [PMID: 31347840 DOI: 10.1021/acs.accounts.9b00301] [Citation(s) in RCA: 145] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
This Account provides a comprehensive summary of our 1-decade-long investigations into bent anthracene dimers as versatile building blocks for supramolecular capsules. The investigations initiated in 2008 with the design of an anthracene dimer with a meta-phenylene spacer bearing two substituents on the convex side. Using the bent polyaromatic building block, we began to develop novel supramolecular capsules from two different synthetic approaches. One is a coordination approach, which was pursued by converting the building block into a bent ligand with two pyridine units at the terminal positions. The ligands quantitatively assemble into an M2L4-type capsule through coordination bonding with metal ions. The other is a π-stacking approach, which was followed by utilizing the block as a bent amphiphilic molecule with two trimethylammonium groups at the spacer. In water, the amphiphiles spontaneously assemble into a micelle-type capsule through the hydrophobic effect and π-stacking interactions. Simple modification of the building block allowed us to prepare a wide variety of coordination capsules as well as π-stacking capsules, bearing different hydrophilic side-chains, terminal substitutions, connecting units, polyaromatic panels, or spacer units. The coordination capsule possesses a rigid cavity, with a diameter of ∼1 nm, surrounded by multiple anthracene panels. The spherical polyaromatic cavity binds various synthetic molecules (e.g., paracyclophanes, corannulene, BODIPY, and fullerene C60) in aqueous solutions. With the aid of the polyaromatic shell, photochemically and thermally reactive radical initiators and oligosulfurs are greatly stabilized in the cavity. Biomolecules such as hydrophilic sucrose and oligo(lactic acid)s as well as hydrophobic androgenic hormones are bound by the capsule with high selectivity. In addition, long amphiphilic poly(ethylene oxide)s are threaded into the closed shell of the capsule(s) to generate unusual pseudorotaxane-shaped host-guest complexes in water. In contrast, the π-stacking capsule furnishes a flexible cavity, adaptable to the size and shape of guest molecules, encircled by multiple anthracene panels. In water, the capsule binds hydrophobic fluorescent dyes (e.g., Nile red and DCM) in the cavity. Simple grinding of the bent amphiphile with highly hydrophobic nanocarbons such as fullerenes, nanographenes, and carbon nanotubes (followed by sonication) as well as metal-complexes such as Cu(II)-phthalocyanines and Mn(III)-tetraphenylporphyrins leads to the efficient formation of water-soluble host-guest complexes upon encapsulation. Red emission from otherwise water-deactivated Eu(III)-complexes is largely enhanced in water through encapsulation. Moreover, the incorporation of pH- and photoswitches into the amphiphile affords stimuli-responsive π-stacking capsules, capable of releasing bound guests by the addition of acid and light irradiation, respectively, in water. The host functions of the coordination and π-stacking capsules are complementary to each other, which enables selection of the capsule-type depending on the envisioned target. We are convinced that continued investigation of the present supramolecular capsules featuring the bent anthracene dimer and its derivatives will further increase their value as advanced molecular tools for synthetic, analytical, material, biological, and/or medical applications.
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Affiliation(s)
- Michito Yoshizawa
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Lorenzo Catti
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
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20
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Ahmedova A. Biomedical Applications of Metallosupramolecular Assemblies-Structural Aspects of the Anticancer Activity. Front Chem 2018; 6:620. [PMID: 30619828 PMCID: PMC6302020 DOI: 10.3389/fchem.2018.00620] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Accepted: 11/30/2018] [Indexed: 01/25/2023] Open
Abstract
The design and development of metallosupramolecular systems has resulted in construction of a myriad of fascinating structures with highly diverse properties and potential applications. Assessment of the biomedical applications of metallosupramolecular assemblies is an emerging field of research that stems from the recently demonstrated promising results on such systems. After the pioneering works of Therrien and coworkers on organometallic Ru-cages with promising anticancer properties, this topic has evolved to the more recent studies on bioactivity of supramolecular coordination complexes built from different metal ions and various multidentate ligands. Sufficient amount of data on the anticancer activity of metallosupramolecules has already been reported and allows outlining some general tendencies in the structural aspects of the biological activity. The main structural properties of the complexes that can be readily modified to enhance their activity are the size, the shape and charge of the formed complexes. Moreover, the intrinsic properties of the building components could predetermine some of the main characteristics of the overall supramolecular complex, such as its optical properties, chemical reactivity, solubility, etc., and could, thereby, define the areas of its biomedical applications. The unique structural property of most of the metallosupramolecular assemblies, however, is the presence of a discrete cavity that renders a whole range of additional applications resulting from specific host-guest interactions. The encapsulations of small bioactive or fluorescent molecules have been employed for delivery or recognition purposes in many examples. On the other hand, metallosupramolecules have been imbedded into target-specific polymeric nanoparticles that resulted in a successful combination of their therapeutic and diagnostic properties, making them promising for theranostic application in cancer treatment. The aim of this review paper is to mark out some key tendencies in the reported metallosupramolecular structures in relation with their biological activity and potential areas of biomedical application. In this way, a useful set of guidelines can be delineated to help synthetic chemists broaden the application areas of their supramolecular systems by few structural changes.
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Affiliation(s)
- Anife Ahmedova
- Laboratory of Biocoordination and Bioanalytical Chemistry, Faculty of Chemistry and Pharmacy, Sofia University, Sofia, Bulgaria
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21
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Steel PJ, McMorran DA. Selective Anion Recognition by a Dynamic Quadruple Helicate. Chem Asian J 2018; 14:1098-1101. [PMID: 30209886 DOI: 10.1002/asia.201801262] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2018] [Revised: 09/04/2018] [Indexed: 01/06/2023]
Abstract
An M2 L4 quadruple helicate, formed by wrapping four molecules of 1,4-bis(3-pyridyloxy)benzene (L1 ) about two palladium(II) centers, is shown to bind anions within its internal cavity. 1 H NMR exchange experiments provide a quantitative measure of anion selectivity and reveal a preference for ClO4 - over the other tetrahedral anions BF4 - and ReO4 - and the octahedral anion PF6 - . X-ray crystal structures of [Pd2 (L1 )4 ]4+ helicates containing ClO4 , BF4 - and I- reveal that the cavity size can dynamically change in response to the size of the guest.
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Affiliation(s)
- Peter J Steel
- Department of Chemistry, University of Canterbury, Christchurch, 8140, New Zealand
| | - David A McMorran
- Department of Chemistry Te Tari Matauranga Mata, University of Otago, PO Box 56, Dunedin, 9054, New Zealand
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22
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Yazaki K, Catti L, Yoshizawa M. Polyaromatic molecular tubes: from strategic synthesis to host functions. Chem Commun (Camb) 2018; 54:3195-3206. [PMID: 29504004 DOI: 10.1039/c8cc00799c] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Ring- and tube-shaped molecules like crown ethers and cyclodextrins play a fundamental role in supramolecular chemistry since their initial discovery. To date, numerous intriguing properties and reactivities have been reported based on their unique inner microenvironments. While inner spaces encircled by aliphatic and/or small aromatic frameworks have been heavily investigated, tubular structures that feature polyaromatic frameworks remained largely unexplored until 2010, despite their undisputable potential. Polyaromatic rings provide appealing photophysical and electrochemical properties and thus allow for the construction of new functional cylindrical nanospaces. This feature article describes the recent progress in the synthesis and application of short tubular molecules bearing multiple (≥3) polyaromatic rings (e.g., anthracene, pyrene, chrysene, and HBC). The polyaromatic tubes reported herein display characteristic properties such as strong fluorescent emission, a selective molecular binding ability, efficient host-guest energy transfer and open-closed structural transformations.
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Affiliation(s)
- Kohei Yazaki
- Faculty of Engineering, University of Yamanashi, 4-3-11 Takeda, Kofu 400-8511, Japan
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23
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Wu JY, Zhong MS, Chiang MH. Anion-Directed Metallocages: A Study on the Tendency of Anion Templation. Chemistry 2017; 23:15957-15965. [PMID: 28895232 DOI: 10.1002/chem.201702848] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Indexed: 11/08/2022]
Abstract
Self-assembly of Cu(NO3 )2 ⋅3 H2 O and di(3-pyridylmethyl)amine (dpma) with addition of different acids (HNO3 , HOAc, HCl, HClO4 , HOTf, HPF6 , HBF4 , and H2 SO4 ) afforded a family of anion-templated tetragonal metallocages with a cationic prismatic structure of [(Gn- )⊂{Cu2 (Hdpma)4 }](8-n)+ (Gn- =NO3- , PF6- , SiF62- ) with different ligating anions/solvents (NO3- , Cl- , ClO4- , OTf- , H2 O) outside the cage. Systematic competitive experiments have rationalized the tendency of anion templation towards the formation of metallocages [(Gn- )⊂{Cu2 (Hdpma)4 }](8-n)+ as occurring in the order SiF62- ≈PF6- >NO3- >SO42- ≈ClO4- ≈BF4- . This sequence is mostly elucidated by shape control over size selectivity and electrostatic attraction between the cationic {Cu2 (Hdpma)4 }8+ host and the anionic guests. In addition, these results have also roughly ranked the anion coordination ability in the order Cl- , ClO4- , OTf- >NO3- >BF4- , CH3 SO4- . Magnetic studies of metallocages 1 t and 2-4 suggest that the fitted magnetic interaction, being weakly magnetically coupled overall, is interpreted as a result of the combination of intracage ferromagnetic coupling integrals and intercage antiferromagnetic exchange; both contributions are very weak and comparable in strength.
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Affiliation(s)
- Jing-Yun Wu
- Department of Applied Chemistry, National Chi Nan University, Nantou, 545, Taiwan
| | - Ming-Shiou Zhong
- Department of Applied Chemistry, National Chi Nan University, Nantou, 545, Taiwan
| | - Ming-Hsi Chiang
- Institute of Chemistry, Academia Sinica, Taipei, 115, Taiwan
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24
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Ganta S, Chand DK. Multi-Stimuli-Responsive Metallogel Molded from a Pd2L4-Type Coordination Cage: Selective Removal of Anionic Dyes. Inorg Chem 2017; 57:3634-3645. [DOI: 10.1021/acs.inorgchem.7b02239] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Sudhakar Ganta
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Dillip K. Chand
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
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25
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Kim TY, Digal L, Gardiner MG, Lucas NT, Crowley JD. Octahedral [Pd6
L8
]12+
Metallosupramolecular Cages: Synthesis, Structures and Guest-Encapsulation Studies. Chemistry 2017; 23:15089-15097. [DOI: 10.1002/chem.201702518] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 08/17/2017] [Indexed: 01/09/2023]
Affiliation(s)
- Tae Y. Kim
- Department of Chemistry; University of Otago; PO Box 56 Dunedin New Zealand
| | - Lori Digal
- Department of Chemistry; University of Otago; PO Box 56 Dunedin New Zealand
| | - Michael G. Gardiner
- School of Physical Sciences (Chemistry); University of Tasmania; Hobart Australia
| | - Nigel T. Lucas
- Department of Chemistry; University of Otago; PO Box 56 Dunedin New Zealand
| | - James D. Crowley
- Department of Chemistry; University of Otago; PO Box 56 Dunedin New Zealand
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26
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Yazaki K, Akita M, Prusty S, Chand DK, Kikuchi T, Sato H, Yoshizawa M. Polyaromatic molecular peanuts. Nat Commun 2017; 8:15914. [PMID: 28656977 PMCID: PMC5493752 DOI: 10.1038/ncomms15914] [Citation(s) in RCA: 85] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Accepted: 05/12/2017] [Indexed: 12/24/2022] Open
Abstract
Mimicking biological structures such as fruits and seeds using molecules and molecular assemblies is a great synthetic challenge. Here we report peanut-shaped nanostructures comprising two fullerene molecules fully surrounded by a dumbbell-like polyaromatic shell. The shell derives from a molecular double capsule composed of four W-shaped polyaromatic ligands and three metal ions. Mixing the double capsule with various fullerenes (that is, C60, C70 and Sc3N@C80) gives rise to the artificial peanuts with lengths of ∼3 nm in quantitative yields through the release of the single metal ion. The rational use of both metal-ligand coordination bonds and aromatic-aromatic π-stacking interactions as orthogonal chemical glue is essential for the facile preparation of the multicomponent, biomimetic nanoarchitectures.
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Affiliation(s)
- Kohei Yazaki
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Munetaka Akita
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Soumyakanta Prusty
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Dillip Kumar Chand
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Takashi Kikuchi
- Rigaku Corporation, 3-9-12 Matsubaracho, Akishima, Tokyo 196-8666, Japan
| | - Hiroyasu Sato
- Rigaku Corporation, 3-9-12 Matsubaracho, Akishima, Tokyo 196-8666, Japan
| | - Michito Yoshizawa
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
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27
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Pritchard VE, Rota Martir D, Oldknow S, Kai S, Hiraoka S, Cookson NJ, Zysman‐Colman E, Hardie MJ. Homochiral Self-Sorted and Emissive Ir III Metallo-Cryptophanes. Chemistry 2017; 23:6290-6294. [PMID: 28370620 PMCID: PMC5499720 DOI: 10.1002/chem.201701348] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Indexed: 12/30/2022]
Abstract
The racemic ligands (±)-tris(isonicotinoyl)-cyclotriguaiacylene (L1), or (±)-tris(4-pyridyl-methyl)-cyclotriguaiacylene (L2) assemble with racemic (Λ,Δ)-[Ir(ppy)2 (MeCN)2 ]+ , in which ppy=2-phenylpyridinato, to form [{Ir(ppy)2 }3 (L)2 ]3+ metallo-cryptophane cages. The crystal structure of [{Ir(ppy)2 }3 (L1)2 ]⋅3BF4 has MM-ΛΛΛ and PP-ΔΔΔ isomers, and homochiral self-sorting occurs in solution, a process accelerated by a chiral guest. Self-recognition between L1 and L2 within cages does not occur, and cages show very slow ligand exchange. Both cages are phosphorescent, with [{Ir(ppy)2 }3 (L2)2 ]3+ having enhanced and blue-shifted emission when compared with [{Ir(ppy)2 }3 (L1)2 ]3+ .
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Affiliation(s)
| | - Diego Rota Martir
- Organic Semiconductor CentreEaSTCHEM School of ChemistryUniversity of St AndrewsSt Andrews, FifeKY16 9STUK
| | - Samuel Oldknow
- School of ChemistryUniversity of LeedsWoodhouse LaneLeedsLS2 9JTUK
| | - Shumpei Kai
- Department of Basic ScienceGraduate School of Arts and SciencesThe University of Tokyo3–8-1 Komaba, Meguro-kuTokyo153-8902Japan
| | - Shuichi Hiraoka
- Department of Basic ScienceGraduate School of Arts and SciencesThe University of Tokyo3–8-1 Komaba, Meguro-kuTokyo153-8902Japan
| | - Nikki J. Cookson
- School of ChemistryUniversity of LeedsWoodhouse LaneLeedsLS2 9JTUK
| | - Eli Zysman‐Colman
- Organic Semiconductor CentreEaSTCHEM School of ChemistryUniversity of St AndrewsSt Andrews, FifeKY16 9STUK
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28
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Jiang Y, Zhang H, Cui Z, Tan T. Modeling Coordination-Directed Self-Assembly of M 2L 4 Nanocapsule Featuring Competitive Guest Encapsulation. J Phys Chem Lett 2017; 8:2082-2086. [PMID: 28434224 DOI: 10.1021/acs.jpclett.7b00773] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Exploring the mechanism of self-assembly and guest encapsulation of nanocapsules is highly imperative for the design of sophisticated molecular containers and multistimuli-responsive functional materials. Here we present a molecular dynamics simulation protocol with implicit solvent and simulated annealing techniques to investigate the self-assembly and competitive guest (C60 and C70 fullerenes) encapsulation of a M2L4 nanocapsule that is self-assembled by the coordination of mercury cations and bent bidentate ligands. Stepwise formation of the nanocapsule and competitive fullerene encapsulation during dynamic structural changes in the self-assembly were detected successfully. Such processes were driven by coordination bonding and π-π stacking and obey the minimum total potential energy principle. Potential of mean force calculations for guest binding to the M2L4 nanocapsule explained the mechanism underlying the competitive encapsulations of C60 and C70. This work helps design new functional nanomaterials capable of guest encapsulation and release.
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Affiliation(s)
- Yang Jiang
- Beijing Key Lab of Bioprocess, College of Life Science and Technology, Beijing University of Chemical Technology , Beijing 100029, China
| | - Haiyang Zhang
- Department of Biological Science and Engineering, School of Chemistry and Biological Engineering, University of Science and Technology Beijing , 100083 Beijing, China
| | - Ziheng Cui
- Beijing Key Lab of Bioprocess, College of Life Science and Technology, Beijing University of Chemical Technology , Beijing 100029, China
| | - Tianwei Tan
- Beijing Key Lab of Bioprocess, College of Life Science and Technology, Beijing University of Chemical Technology , Beijing 100029, China
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29
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30
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Yazaki K, Noda S, Tanaka Y, Sei Y, Akita M, Yoshizawa M. An M2L4Molecular Capsule with a Redox Switchable Polyradical Shell. Angew Chem Int Ed Engl 2016; 55:15031-15034. [DOI: 10.1002/anie.201608350] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Kohei Yazaki
- Laboratory for Chemistry and Life Science; Institute of Innovative Research; Tokyo Institute of Technology; 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Shogo Noda
- Laboratory for Chemistry and Life Science; Institute of Innovative Research; Tokyo Institute of Technology; 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Yuya Tanaka
- Laboratory for Chemistry and Life Science; Institute of Innovative Research; Tokyo Institute of Technology; 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Yoshihisa Sei
- Laboratory for Chemistry and Life Science; Institute of Innovative Research; Tokyo Institute of Technology; 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Munetaka Akita
- Laboratory for Chemistry and Life Science; Institute of Innovative Research; Tokyo Institute of Technology; 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Michito Yoshizawa
- Laboratory for Chemistry and Life Science; Institute of Innovative Research; Tokyo Institute of Technology; 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
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31
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Yazaki K, Noda S, Tanaka Y, Sei Y, Akita M, Yoshizawa M. An M2L4Molecular Capsule with a Redox Switchable Polyradical Shell. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201608350] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Kohei Yazaki
- Laboratory for Chemistry and Life Science; Institute of Innovative Research; Tokyo Institute of Technology; 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Shogo Noda
- Laboratory for Chemistry and Life Science; Institute of Innovative Research; Tokyo Institute of Technology; 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Yuya Tanaka
- Laboratory for Chemistry and Life Science; Institute of Innovative Research; Tokyo Institute of Technology; 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Yoshihisa Sei
- Laboratory for Chemistry and Life Science; Institute of Innovative Research; Tokyo Institute of Technology; 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Munetaka Akita
- Laboratory for Chemistry and Life Science; Institute of Innovative Research; Tokyo Institute of Technology; 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Michito Yoshizawa
- Laboratory for Chemistry and Life Science; Institute of Innovative Research; Tokyo Institute of Technology; 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
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32
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Yazaki K, Sei Y, Akita M, Yoshizawa M. Polycationic-Shelled Capsular and Tubular Nanostructures and Their Anionic-Guest Binding Properties. Chemistry 2016; 22:17557-17561. [DOI: 10.1002/chem.201604384] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Indexed: 12/14/2022]
Affiliation(s)
- Kohei Yazaki
- Laboratory for Chemistry and Life Science; Institute of Innovative Research; Tokyo Institute of Technology; 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Yoshihisa Sei
- Laboratory for Chemistry and Life Science; Institute of Innovative Research; Tokyo Institute of Technology; 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Munetaka Akita
- Laboratory for Chemistry and Life Science; Institute of Innovative Research; Tokyo Institute of Technology; 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Michito Yoshizawa
- Laboratory for Chemistry and Life Science; Institute of Innovative Research; Tokyo Institute of Technology; 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
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33
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Self-Assembled Palladium and Platinum Coordination Cages: Photophysical Studies and Anticancer Activity. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201600811] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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34
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Yamashina M, Matsuno S, Sei Y, Akita M, Yoshizawa M. Recognition of Multiple Methyl Groups on Aromatic Rings by a Polyaromatic Cavity. Chemistry 2016; 22:14147-50. [DOI: 10.1002/chem.201603032] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2016] [Indexed: 12/31/2022]
Affiliation(s)
- Masahiro Yamashina
- Laboratory for Chemistry and Life Science; Institute of Innovative Research; Tokyo Institute of Technology; 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Sho Matsuno
- Laboratory for Chemistry and Life Science; Institute of Innovative Research; Tokyo Institute of Technology; 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Yoshihisa Sei
- Laboratory for Chemistry and Life Science; Institute of Innovative Research; Tokyo Institute of Technology; 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Munetaka Akita
- Laboratory for Chemistry and Life Science; Institute of Innovative Research; Tokyo Institute of Technology; 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Michito Yoshizawa
- Laboratory for Chemistry and Life Science; Institute of Innovative Research; Tokyo Institute of Technology; 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
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35
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Suzuki A, Kondo K, Sei Y, Akita M, Yoshizawa M. A fluorescent molecular capsule with a flexible polyaromatic shell for the detection of monoterpene compounds in water. Chem Commun (Camb) 2016; 52:3151-4. [PMID: 26804491 DOI: 10.1039/c5cc09647b] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new molecular capsule with a flexible fluorescent shell was formed by the quantitative self-complementary assembly of amphiphilic, U-shaped polyaromatic subunits in water. The capsule can fully encapsulate a variety of non-fluorescent monoterpene compounds (e.g., menthone, menthol, and p-menthane) in the hydrophobic cavity and act as a fluorescent supramolecular probe for recognizing the structural identity of the analytes by emissive signals in water at room temperature.
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Affiliation(s)
- Akira Suzuki
- Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan.
| | - Kei Kondo
- Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan.
| | - Yoshihisa Sei
- Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan.
| | - Munetaka Akita
- Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan.
| | - Michito Yoshizawa
- Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan.
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36
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Elliott ABS, Lewis JEM, van der Salm H, McAdam CJ, Crowley JD, Gordon KC. Luminescent Cages: Pendant Emissive Units on [Pd2L4]4+ “Click” Cages. Inorg Chem 2016; 55:3440-7. [DOI: 10.1021/acs.inorgchem.5b02843] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
| | - James E. M. Lewis
- Department of Chemistry, University of Otago,
P.O. Box 56, Dunedin, New Zealand
| | - Holly van der Salm
- Department of Chemistry, University of Otago,
P.O. Box 56, Dunedin, New Zealand
| | - C. John McAdam
- Department of Chemistry, University of Otago,
P.O. Box 56, Dunedin, New Zealand
| | - James D. Crowley
- Department of Chemistry, University of Otago,
P.O. Box 56, Dunedin, New Zealand
| | - Keith C. Gordon
- Department of Chemistry, University of Otago,
P.O. Box 56, Dunedin, New Zealand
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37
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Ahmedova A, Mihaylova R, Momekova D, Shestakova P, Stoykova S, Zaharieva J, Yamashina M, Momekov G, Akita M, Yoshizawa M. M2L4 coordination capsules with tunable anticancer activity upon guest encapsulation. Dalton Trans 2016; 45:13214-21. [DOI: 10.1039/c6dt01801g] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Guest encapsulation can modulate the cytotoxicity of anthracene-based nano-capsules and broaden their applications from metallodrugs to biocompatible delivery systems.
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Affiliation(s)
- Anife Ahmedova
- Faculty of Chemistry and Pharmacy
- University of Sofia
- Sofia 1164
- Bulgaria
| | | | - Denitsa Momekova
- Faculty of Pharmacy
- Medical University of Sofia
- Sofia 1000
- Bulgaria
| | - Pavletta Shestakova
- NMR Laboratory
- Institute of Organic Chemistry with Centre of Phytochemistry
- Bulgarian Academy of Sciences
- Sofia 1113
- Bulgaria
| | - Silviya Stoykova
- Faculty of Chemistry and Pharmacy
- University of Sofia
- Sofia 1164
- Bulgaria
| | - Joana Zaharieva
- Faculty of Chemistry and Pharmacy
- University of Sofia
- Sofia 1164
- Bulgaria
| | - Masahiro Yamashina
- Laboratory for Chemistry and Life Science
- Institute of Innovative Research
- Tokyo Institute of Technology
- Yokohama 226-8503
- Japan
| | - Georgi Momekov
- Faculty of Pharmacy
- Medical University of Sofia
- Sofia 1000
- Bulgaria
| | - Munetaka Akita
- Laboratory for Chemistry and Life Science
- Institute of Innovative Research
- Tokyo Institute of Technology
- Yokohama 226-8503
- Japan
| | - Michito Yoshizawa
- Laboratory for Chemistry and Life Science
- Institute of Innovative Research
- Tokyo Institute of Technology
- Yokohama 226-8503
- Japan
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38
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Schmidt A, Hollering M, Han J, Casini A, Kühn FE. Self-assembly of highly luminescent heteronuclear coordination cages. Dalton Trans 2016; 45:12297-300. [DOI: 10.1039/c6dt02708c] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A promising approach is described to enhance the luminescence of palladium(ii) cages resulting in one of the highest fluorescence qunatum yields for metallosupramolecular complexes.
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Affiliation(s)
- Andrea Schmidt
- Molecular Catalysis
- Catalysis Research Center and Department of Chemistry
- Technische Universität München
- 85747 Garching bei München
- Germany
| | - Manuela Hollering
- Molecular Catalysis
- Catalysis Research Center and Department of Chemistry
- Technische Universität München
- 85747 Garching bei München
- Germany
| | - Jiaying Han
- Groningen Research Institute of Pharmacy
- University of Groningen
- 9713 AV Groningen
- The Netherlands
| | - Angela Casini
- Medicinal and Bioinorganic Chemistry
- School of Chemistry
- Cardiff University
- CF103AT Cardiff
- UK
| | - Fritz E. Kühn
- Molecular Catalysis
- Catalysis Research Center and Department of Chemistry
- Technische Universität München
- 85747 Garching bei München
- Germany
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39
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Ling I, Sobolev AN, Raston CL. Gadolinium(iii)-mediated multi-component confinement of imidazolium cations in p-sulfonated calix[4]arene. CrystEngComm 2016. [DOI: 10.1039/c5ce01920f] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Multi-component materials having supermolecules made up of mono- or bis-imidazolium cations shrouded by two p-sulfonated calix[4]arenes essentially form molecular capsules as part of the extended structure, with their formation mediated by Gd(iii), which is incorporated only in complex I.
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Affiliation(s)
- Irene Ling
- Centre for NanoScale Science and Technology
- School of Chemical and Physical Sciences
- Flinders University
- , Australia
- Department of Chemistry
| | - Alexandre N. Sobolev
- School of Chemistry and Biochemistry
- The University of Western Australia
- Perth, Australia
| | - Colin L. Raston
- Centre for NanoScale Science and Technology
- School of Chemical and Physical Sciences
- Flinders University
- , Australia
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40
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Ahmedova A, Momekova D, Yamashina M, Shestakova P, Momekov G, Akita M, Yoshizawa M. Anticancer Potencies of PtII
- and PdII
-linked M2
L4
Coordination Capsules with Improved Selectivity. Chem Asian J 2015; 11:474-7. [DOI: 10.1002/asia.201501238] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Indexed: 12/18/2022]
Affiliation(s)
- Anife Ahmedova
- Faculty of Chemistry and Pharmacy; Sofia University, 1; J. Bourchier blvd. Sofia 1164 Bulgaria
| | - Denitsa Momekova
- Faculty of Pharmacy; Medical University of Sofia; 2 Dunav Street Sofia 1000 Bulgaria
| | - Masahiro Yamashina
- Chemical Resources Laboratory; Tokyo Institute of Technology; 4259 Nagatsuta Midori-ku Yokohama 226-8503 Japan
| | - Pavletta Shestakova
- NMR Laboratory; Institute of Organic Chemistry with Centre of Phytochemistry; Bulgarian Academy of Sciences; Acad. G. Bonchev Str., Bl. 9 Sofia 1113 Bulgaria
| | - Georgi Momekov
- Faculty of Pharmacy; Medical University of Sofia; 2 Dunav Street Sofia 1000 Bulgaria
| | - Munetaka Akita
- Chemical Resources Laboratory; Tokyo Institute of Technology; 4259 Nagatsuta Midori-ku Yokohama 226-8503 Japan
| | - Michito Yoshizawa
- Chemical Resources Laboratory; Tokyo Institute of Technology; 4259 Nagatsuta Midori-ku Yokohama 226-8503 Japan
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41
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Yamashina M, Sartin MM, Sei Y, Akita M, Takeuchi S, Tahara T, Yoshizawa M. Preparation of Highly Fluorescent Host-Guest Complexes with Tunable Color upon Encapsulation. J Am Chem Soc 2015; 137:9266-9. [PMID: 26166243 DOI: 10.1021/jacs.5b06195] [Citation(s) in RCA: 160] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Unlike previous coordinative host-guest systems, highly emissive host-guest complexes (up to Φ(F) = 0.5) were successfully prepared upon encapsulation of various fluorescent dyes (e.g., BODIPY and coumarin derivatives) by a Pt(II)-linked coordination capsule in water. Picosecond time-resolved spectroscopy elucidates the photophysical behaviors of the obtained complexes. Notably, the emission color of the fluorescent guest within the capsule can be readily modulated upon pairwise encapsulation with planar aromatic molecules.
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Affiliation(s)
- Masahiro Yamashina
- †Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Matthew M Sartin
- ‡Molecular Spectroscopy Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Yoshihisa Sei
- †Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Munetaka Akita
- †Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Satoshi Takeuchi
- ‡Molecular Spectroscopy Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.,§Ultrafast Spectroscopy Research Team, RIKEN Center for Advanced Photonics, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Tahei Tahara
- ‡Molecular Spectroscopy Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.,§Ultrafast Spectroscopy Research Team, RIKEN Center for Advanced Photonics, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Michito Yoshizawa
- †Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
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42
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Xu L, Wang YX, Yang HB. Recent advances in the construction of fluorescent metallocycles and metallocages via coordination-driven self-assembly. Dalton Trans 2015; 44:867-90. [PMID: 25429665 DOI: 10.1039/c4dt02996h] [Citation(s) in RCA: 126] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
During the last few years, the construction of fluorescent metallocycles and metallocages has attracted considerable attention because of their wide applications in fluorescence detection of metal ions, anions, or small molecules, mimicking complicated natural photo-processes, and preparing photoelectric devices, etc. This perspective focuses on the recent advances in the construction of a variety of fluorescent metallocycles and metallocages via coordination-driven self-assembly. In addition, the fluorescence properties and the applications of these organometallic architectures have also been discussed.
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Affiliation(s)
- Lin Xu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, 3663 N. Zhongshan Road, Shanghai, 200062, People's Republic of China.
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43
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Bright Fluorescence and Host-Guest Sensing with a Nanoscale M4L6Tetrahedron Accessed by Self-Assembly of Zinc-Imine Chelate Vertices and Perylene Bisimide Edges. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201501670] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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44
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Frischmann PD, Kunz V, Würthner F. Bright Fluorescence and Host-Guest Sensing with a Nanoscale M4L6Tetrahedron Accessed by Self-Assembly of Zinc-Imine Chelate Vertices and Perylene Bisimide Edges. Angew Chem Int Ed Engl 2015; 54:7285-9. [DOI: 10.1002/anie.201501670] [Citation(s) in RCA: 94] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Indexed: 11/11/2022]
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45
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Yamashina M, Yuki T, Sei Y, Akita M, Yoshizawa M. Anisotropic expansion of an M2L4 coordination capsule: host capability and frame rearrangement. Chemistry 2015; 21:4200-4. [PMID: 25677602 DOI: 10.1002/chem.201406445] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Indexed: 12/27/2022]
Abstract
Anisotropic expansion of a spherical M2L4 coordination capsule through the elongation of the ligand led to a new M2L'4 capsule. The expanded capsule provides an elliptical cavity encircled by polyaromatic frameworks with large openings and thereby can encapsulate elliptical fullerene C70 and monofunctionalized fullerene C60 in high yields. In addition, selective formation of a new M2L2L'2 capsule occurs by mixing the original M2L4 and expanded M2L'4 capsules in a 1:1 ratio upon addition of C60 or monofunctionalized C60 as a template molecule.
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Affiliation(s)
- Masahiro Yamashina
- Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503 (Japan), Fax: (+81) 45-924-5230
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46
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Guzmán-Percástegui E, Vonlanthen M, Quiroz-García B, Flores-Alamo M, Rivera E, Castillo I. Supramolecular fluorescence enhancement via coordination-driven self-assembly in bis-picolylcalixarene blue-emitting M2L2Xn macrocycles. Dalton Trans 2015; 44:15966-75. [DOI: 10.1039/c5dt02058a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Photoactive macrocycles are obtained through coordination-driven self-assembly between calixarene L and Zn2+, Pd2+, Ag+, and Cd2+. Blue emission enhancement of L is observed upon assembly. M2L2Xn act as turn-off sensors for picric acid.
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Affiliation(s)
- Edmundo Guzmán-Percástegui
- Instituto de Química
- Universidad Nacional Autónoma de México
- Circuito Exterior
- Ciudad Universitaria
- México D.F. 04510
| | - Mireille Vonlanthen
- Instituto de Investigaciones en Materiales
- Universidad Nacional Autónoma de México
- Circuito Exterior
- Ciudad Universitaria
- México D.F. 04510
| | - Beatriz Quiroz-García
- Instituto de Química
- Universidad Nacional Autónoma de México
- Circuito Exterior
- Ciudad Universitaria
- México D.F. 04510
| | - Marcos Flores-Alamo
- Facultad de Química
- Universidad Nacional Autónoma de México
- Ciudad Universitaria
- México D. F. 04510
- México
| | - Ernesto Rivera
- Instituto de Investigaciones en Materiales
- Universidad Nacional Autónoma de México
- Circuito Exterior
- Ciudad Universitaria
- México D.F. 04510
| | - Ivan Castillo
- Instituto de Química
- Universidad Nacional Autónoma de México
- Circuito Exterior
- Ciudad Universitaria
- México D.F. 04510
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47
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Hagiwara K, Otsuki M, Akita M, Yoshizawa M. Polyaromatic molecular tubes with a subnanometer pore and the guest-induced emission enhancement behavior. Chem Commun (Camb) 2015; 51:10451-4. [DOI: 10.1039/c5cc02931g] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
New polyaromatic molecular tubes with a subnanometer pore (0.8 nm) can bind one molecule of hydrocarbon guests in water with accompanying guest-induced emission enhancement (up to ∼3 times).
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Affiliation(s)
- Keita Hagiwara
- Chemical Resources Laboratory
- Tokyo Institute of Technology
- Yokohama 226-8503
- Japan
| | - Masafumi Otsuki
- Chemical Resources Laboratory
- Tokyo Institute of Technology
- Yokohama 226-8503
- Japan
| | - Munetaka Akita
- Chemical Resources Laboratory
- Tokyo Institute of Technology
- Yokohama 226-8503
- Japan
| | - Michito Yoshizawa
- Chemical Resources Laboratory
- Tokyo Institute of Technology
- Yokohama 226-8503
- Japan
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48
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Okazawa Y, Kondo K, Akita M, Yoshizawa M. Polyaromatic nanocapsules displaying aggregation-induced enhanced emissions in water. J Am Chem Soc 2014; 137:98-101. [PMID: 25534021 DOI: 10.1021/ja511463k] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
V-shaped polyaromatic amphiphiles with phenanthrene or naphthalene rings spontaneously and quantitatively formed micelle-like nanocapsules in water at room temperature. In contrast to usual polyaromatic aggregates with weak fluorescent properties, the new capsules providing spherical polyaromatic shells with diameters of ∼2 nm show strong fluorescent emissions due to an aggregation-induced enhanced emission (AIEE) effect and moreover encapsulate a fluorescent coumarin dye to generate highly emissive host-guest composites.
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Affiliation(s)
- Yusuke Okazawa
- Chemical Resources Laboratory, Tokyo Institute of Technology , 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
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49
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Yazaki K, Sei Y, Akita M, Yoshizawa M. A polyaromatic molecular tube that binds long hydrocarbons with high selectivity. Nat Commun 2014; 5:5179. [PMID: 25322998 DOI: 10.1038/ncomms6179] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2014] [Accepted: 09/08/2014] [Indexed: 11/09/2022] Open
Abstract
Long hydrocarbon chains are essential components of biomolecules used for structure and function in living organisms. The selective recognition and effective binding of hydrocarbons within synthetic host compounds are problematic owing to their conformational flexibility and the lack of specific binding sites. Here we report a molecular tube with polyaromatic frameworks prepared by the Zincke cross-coupling reaction. The tube has a well-defined cylindrical cavity with a diameter and length of ~1 nm encircled by multiple anthracene panels and thereby binds long hydrocarbons containing branched methyl groups and/or unsaturated carbon-carbon double bonds (for example, heptamethylnonane, nervonic acid ester and squalene) with high selectivity in aqueous solutions.
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Affiliation(s)
- Kohei Yazaki
- Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Yoshihisa Sei
- Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Munetaka Akita
- Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Michito Yoshizawa
- Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
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50
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Yoshizawa M, Klosterman JK. Molecular architectures of multi-anthracene assemblies. Chem Soc Rev 2014; 43:1885-98. [PMID: 24169958 DOI: 10.1039/c3cs60315f] [Citation(s) in RCA: 257] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Anthracene, with its molecular panel-like shape and robust photophysical behaviour, is a versatile building block that is widely used to construct attractive and functional molecules and molecular assemblies through covalent and non-covalent linkages. The intrinsic photophysical, photochemical and chemical properties of the embedded anthracenes often interact to engender desirable chemical behaviours and properties in multi-anthracene assemblies. This review article focuses on molecular architectures with linear, cyclic, cage, and capsule shapes, each containing three or more anthracene subunits.
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Affiliation(s)
- Michito Yoshizawa
- Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan.
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