1
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Lewis JEM. Molecular engineering of confined space in metal–organic cages. Chem Commun (Camb) 2022; 58:13873-13886. [DOI: 10.1039/d2cc05560k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Abstract
The host–guest chemistry of metal–organic cages can be modified through tailoring of structural aspects such as size, shape and functionality. In this review, strategies, opportunities and challenges of such molecular engineering are discussed.
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Affiliation(s)
- James E. M. Lewis
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
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2
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Abstract
Although many impressive metallo-supramolecular architectures have been reported, they tend towards high symmetry structures and avoid extraneous functionality to ensure high fidelity in the self-assembly process. This minimalist approach, however, limits the range of accessible structures and thus their potential applications. Herein is described the synthesis of a family of ditopic ligands wherein the ligand scaffolds are both low symmetry and incorporate exohedral functional moieties. Key to this design is the use of CuI -catalysed azide-alkyne cycloaddition (CuAAC) chemistry, as the triazole is capable of acting as both a coordinating heterocycle and a tether between the ligand framework and functional unit simultaneously. A common precursor was used to generate ligands with various functionalities, allowing control of electronic properties whilst maintaining the core structure of the resultant cis-Pd2 L4 nanocage assemblies. The isostructural nature of the scaffold frameworks enabled formation of combinatorial libraries from the self-assembly of ligand mixtures, generating a statistical mixture of multi-functional, low symmetry architectures.
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Affiliation(s)
- James E. M. Lewis
- Department of ChemistryImperial College LondonMolecular Sciences Research Hub, 82 Wood LaneLondonW12 0BZUK
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3
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Hiraoka S, Takahashi S, Sato H. Coordination Self-Assembly Processes Revealed by Collaboration of Experiment and Theory: Toward Kinetic Control of Molecular Self-Assembly. CHEM REC 2020; 21:443-459. [PMID: 33241912 DOI: 10.1002/tcr.202000124] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 11/11/2020] [Accepted: 11/11/2020] [Indexed: 12/16/2022]
Abstract
The importance of the collaboration of experiment and theory has been proven in many examples in science and technology. Here, such a new example is shown in the investigation of molecular self-assembly process, which is a complicated multi-step chemical reaction occurring in the reaction network composed of a huge number of intermediates. An experimental method, QASAP (quantitative analysis of self-assembly process), developed by us and a numerical approach, NASAP (numerical analysis of self-assembly process), that analyzes the experimental data obtained by QASAP to draw detail molecular self-assembly pathways, which was also developed by us, are introduced, and their application to the investigation of Pd(II)-mediated coordination assemblies are presented. Further, the possibility of the prediction of the outcomes of molecular self-assembly by varying the reaction conditions is also demonstrated. Finally, a future direction in the field of artificial molecular self-assembly based on pathway-dependent self-assembly, that is, kinetic control of molecular self-assembly is discussed.
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Affiliation(s)
- Shuichi Hiraoka
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo, 153-8902, Japan
| | - Satoshi Takahashi
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo, 153-8902, Japan
| | - Hirofumi Sato
- Department of Molecular Engineering, Kyoto University, Kyoto, 615-8510, Japan.,Elements Strategy Initiative for Catalyst and Batteries, Kyoto University, Kyoto, 615-8510, Japan.,Fukui Institute for Fundamental Chemistry, Kyoto University, Kyoto, 606-8103, Japan
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4
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Banday AH, Hruby VJ. Ionic Liquid Catalyzed Efficient Regioselective Synthesis of 1,4- Disubstituted 1,2,3-Triazoles under Metal and Solvent free Conditions. CURRENT ORGANOCATALYSIS 2020. [DOI: 10.2174/2213337207999200831105105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Unprecedented, one-pot regioselective synthesis of 1,4-disubstituted 1,2,3-triazoles through azide-
aldehyde (3+2) organo-click cycloaddition under metal and solvent-free conditions, is described.
Objective:
Solvent and metal free synthesis of biologically and industrially important triazoles.
Methods:
Efficient and high yielding synthesis of products avoiding the tedious high solvent workups and chromatographic
separations. The synthesis doesn’t involve the routine acetylenes which are very costly but instead cheaper starting
materials like aldehydes and organic azides are used.
Results:
Green protocol based on the catalysis through Ionic Liquids which simultaneously act as solvents. The products
are obtained in good to excellent yields in hassle free synthesis.
Conclusion:
Efficient and green synthesis of structurally and biologically important triazoles.
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Affiliation(s)
- Abid H. Banday
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama, United States
| | - Victor J. Hruby
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, Arizona, United States
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5
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Wong KKG, Hoyas Pérez N, White AJP, Lewis JEM. Self-assembly of a porous metallo-[5]rotaxane. Chem Commun (Camb) 2020; 56:10453-10456. [DOI: 10.1039/d0cc04780e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A dynamic rotaxane ligand self-assembles with palladium(ii) ions to form a metallo-[5]rotaxane with a porous cage at its core.
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Affiliation(s)
- Kevin Kei Gwan Wong
- Department of Chemistry
- Imperial College London
- Molecular Sciences Research Hub
- London W12 0BZ
- UK
| | - Nadia Hoyas Pérez
- Department of Chemistry
- Imperial College London
- Molecular Sciences Research Hub
- London W12 0BZ
- UK
| | - Andrew J. P. White
- Department of Chemistry
- Imperial College London
- Molecular Sciences Research Hub
- London W12 0BZ
- UK
| | - James E. M. Lewis
- Department of Chemistry
- Imperial College London
- Molecular Sciences Research Hub
- London W12 0BZ
- UK
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6
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Singh J, Park DW, Kim DH, Singh N, Kang SC, Chi KW. Coordination-Driven Self-Assembly of Triazole-Based Apoptosis-Inducible Metallomacrocycles. ACS OMEGA 2019; 4:10810-10817. [PMID: 31460178 PMCID: PMC6649141 DOI: 10.1021/acsomega.9b00093] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Accepted: 06/10/2019] [Indexed: 06/10/2023]
Abstract
Ru(II)-metallomacrocycles containing 4-pyridyl-1,2,3-triazole moiety were realized by coordination-driven self-assembly. All new compounds were characterized by electrospray ionisation mass spectrometry, elemental analysis, and 1H and 13C NMR spectroscopic techniques. The molecular structure of metallomacrocycle 8 was determined by single-crystal X-ray crystallography. The anticancer activities of metallomacrocycles 5-8 were evaluated by cytotoxicity, cell cycle analysis, and related protein expression. Metallomacrocycle 7 showed the highest cytotoxicity in HepG2 human hepatocellular carcinoma cells. In addition, apoptotic HepG2 cells were analyzed when metallomacrocycle 7 was treated. Our results suggest that metallomacrocycle 7 induces liver cancer cell death by increasing apoptosis and cell cycle arrest and that it has potential use as an agent for the treatment of human hepatocellular carcinoma.
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Affiliation(s)
- Jatinder Singh
- Department
of Chemistry, University of Ulsan, Ulsan 44776, Republic of Korea
| | - Dae Won Park
- Department
of Oriental Medicine Biotechnology, College of Life Sciences, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Dong Hwan Kim
- Department
of Chemistry, University of Ulsan, Ulsan 44776, Republic of Korea
| | - Nem Singh
- Department
of Chemistry, University of Ulsan, Ulsan 44776, Republic of Korea
| | - Se Chan Kang
- Department
of Oriental Medicine Biotechnology, College of Life Sciences, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Ki-Whan Chi
- Department
of Chemistry, University of Ulsan, Ulsan 44776, Republic of Korea
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7
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Vasdev RAS, Findlay JA, Garden AL, Crowley JD. Redox active [Pd 2L 4] 4+ cages constructed from rotationally flexible 1,1'-disubstituted ferrocene ligands. Chem Commun (Camb) 2019; 55:7506-7509. [PMID: 31187814 DOI: 10.1039/c9cc03321a] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Two new ferrocene-containing [Pd2(LFc)4]4+(X-)4 (where X- = BF4- or SbF6-) self-assembled cages (C·BF4 and C·SbF6) were synthesised from the known, rotationally flexible, 1,1'-bis(3-pyridylethynyl)ferrocene ligand (LFc), and characterised by 1H, 13C and diffusion ordered (DOSY) NMR and UV-visible absorption spectroscopies, high resolution electrospray ionisation mass spectrometry (HR-ESI-MS), elemental analysis, X-ray crystallography and cyclic voltammetry (CV). The molecular structures confirmed that cage-like systems (C·BF4 and C·SbF6) were generated. Similar to related [Pd2L4]4+(X-)4, C·SbF6 was able to interact with a range of neutral and anionic guests, with p-toluenesulfonate showing the strongest association constant. Cyclic voltammetry studies revealed that the cage systems were redox active. However, the redox potential of the cage was unperturbed upon the addition of guests.
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Affiliation(s)
- Roan A S Vasdev
- Department of Chemistry, University of Otago, PO Box 56, Dunedin 9054, New Zealand. and MacDiarmid Institute for Advanced Materials and Nanotechnology, New Zealand
| | - James A Findlay
- Department of Chemistry, University of Otago, PO Box 56, Dunedin 9054, New Zealand. and MacDiarmid Institute for Advanced Materials and Nanotechnology, New Zealand
| | - Anna L Garden
- Department of Chemistry, University of Otago, PO Box 56, Dunedin 9054, New Zealand. and MacDiarmid Institute for Advanced Materials and Nanotechnology, New Zealand
| | - James D Crowley
- Department of Chemistry, University of Otago, PO Box 56, Dunedin 9054, New Zealand. and MacDiarmid Institute for Advanced Materials and Nanotechnology, New Zealand
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8
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McTernan CT, Ronson TK, Nitschke JR. Post-assembly Modification of Phosphine Cages Controls Host–Guest Behavior. J Am Chem Soc 2019; 141:6837-6842. [DOI: 10.1021/jacs.9b02604] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Charlie T. McTernan
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Tanya K. Ronson
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Jonathan R. Nitschke
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
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9
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Woods B, Wenzel MN, Williams T, Thomas SR, Jenkins RL, Casini A. Exo-Functionalized Metallacages as Host-Guest Systems for the Anticancer Drug Cisplatin. Front Chem 2019; 7:68. [PMID: 30834242 PMCID: PMC6387950 DOI: 10.3389/fchem.2019.00068] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 01/24/2019] [Indexed: 12/19/2022] Open
Abstract
Within the framework of designing new self-assembled metallosupramolecular architectures for drug delivery, seven [Pd2L4]4+ metallacages (L = 2,6-bis(pyridine-3-ylethynyl)pyridine) featuring different groups in exo-position, selected to enhance the cage solubility in aqueous environment, were synthesized. Thus, carboxylic acids, sugars, and PEG groups were tethered to the bispyridyl ligands directly or via disulfide bond formation, as well as via click chemistry. The ligands and respective cages were characterized by different methods, including NMR spectroscopy and high-resolution electrospray mass spectrometry (HR-ESI-MS). While the two ligands featuring carboxylic acid-functionalized groups showed improved solubility in water, the other ligands were soluble only in organic solvents. Unfortunately, all the respective self-assembled cages were also insoluble in water. Afterwards, the encapsulation properties of the anticancer drug cisplatin in selected [Pd2L4]X4 cages (X =NO 3 - ,BF 4 - ) were studied by 1H, 1H DOSY, and 195Pt NMR spectroscopy. The effect of the counter ions as well as of the polarity of the solvent in the drug encapsulation process were also investigated, and provided useful information on the host-guest properties of these experimental drug delivery systems. Our results provide further experimental support for previous studies that suggest the desolvation of guests from surrounding solvent molecules and the resulting solvent rearrangement may actually be the primary driving force for determining guest binding affinities in metallacages, in the absence of specific functional group interactions.
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Affiliation(s)
| | | | | | | | | | - Angela Casini
- School of Chemistry, Cardiff University, Cardiff, United Kingdom
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10
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Li PZ, Wang XJ, Zhao Y. Click chemistry as a versatile reaction for construction and modification of metal-organic frameworks. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2018.11.006] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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11
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Rota Martir D, Zysman-Colman E. Photoactive supramolecular cages incorporating Ru(ii) and Ir(iii) metal complexes. Chem Commun (Camb) 2019; 55:139-158. [DOI: 10.1039/c8cc08327d] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Cage compounds incorporating phosphorescent Ru(ii) and Ir(iii) metal complexes possess a highly desirable set of optoelectronic and physical properties. This feature article summarizes the recent work on cage assemblies containing these metal complexes as photoactive units, highlighting our contribution to this growing field.
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Affiliation(s)
- Diego Rota Martir
- Organic Semiconductor Centre
- EaStCHEM School of Chemistry
- University of St Andrews
- St Andrews
- UK
| | - Eli Zysman-Colman
- Organic Semiconductor Centre
- EaStCHEM School of Chemistry
- University of St Andrews
- St Andrews
- UK
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12
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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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13
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Vasdev RAS, Gaudin LF, Preston D, Jogy JP, Giles GI, Crowley JD. Anticancer Activity and Cisplatin Binding Ability of Bis-Quinoline and Bis-Isoquinoline Derived [Pd 2L 4] 4+ Metallosupramolecular Cages. Front Chem 2018; 6:563. [PMID: 30525025 PMCID: PMC6262750 DOI: 10.3389/fchem.2018.00563] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Accepted: 10/31/2018] [Indexed: 11/29/2022] Open
Abstract
New bis-quinoline (L q) and bis-isoquinoline-based (L iq) ligands have been synthesized, along with their respective homoleptic [Pd2(L q or L iq)4]4+ cages (C q and C iq). The ligands and cages were characterized by 1H, 13C and diffusion ordered (DOSY) NMR spectroscopies, high resolution electrospray ionization mass spectrometry (HR-ESIMS) and in the case of the bis-quinoline cage, X-ray crystallography. The crystal structure of the C q architecture showed that the [Pd2(L q)4]4+ cage formed a twisted meso isomer where the [Pd(quinoline)4]2+ units at either end of the cage architecture adopt the opposite twists (left and right handed). Conversely, Density Functional Theory (DFT) calculations on the C iq cage architecture indicated that a lantern shaped conformation, similar to what has been observed before for related [Pd2(L tripy)4]4+ systems (where L tripy = 2,6-bis(pyridin-3-ylethynyl)pyridine), was generated. The different cage conformations manifest different properties for the isomeric cages. The C iq cage is able to bind, weakly in acetonitrile, the anticancer drug cisplatin whereas the C q architecture shows no interaction with the guest under the same conditions. The kinetic robustness of the two cages in the presence of Cl- nucleophiles was also different. The C iq cage was completely decomposed into free L iq and [Pd(Cl)4]2- within 1 h. However, the C q cage was more long lived and was only fully decomposed after 7 h. The new ligands (L iq and L q) and the Pd(II) cage architectures (C iq and C q) were assessed for their cytotoxic properties against two cancerous cell lines (A549 lung cancer and MDA-MB-231 breast cancer) and one non-cancerous cell line (HDFa skin cells). It was found that L q and C q were both reasonably cytotoxic (IC50S ≈ 0.5 μM) against A549, while C iq was slightly less active (IC50 = 7.4 μM). L iq was not soluble enough to allow the IC50 to be determined against either of the two cancerous cell lines. However, none of the molecules showed any selectivity for the cancer cells, as they were all found to have similar cytotoxicities against HDFa skin cells (IC50 values ranged from 2.6 to 3.0 μM).
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Affiliation(s)
- Roan A. S. Vasdev
- Department of Chemistry, University of Otago, Dunedin, New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington, New Zealand
- Department of Pharmacology and Toxicology, University of Otago, Dunedin, New Zealand
| | | | - Dan Preston
- Department of Chemistry, University of Otago, Dunedin, New Zealand
| | - Jackmil P. Jogy
- Department of Pharmacology and Toxicology, University of Otago, Dunedin, New Zealand
| | - Gregory I. Giles
- Department of Pharmacology and Toxicology, University of Otago, Dunedin, New Zealand
| | - James D. Crowley
- Department of Chemistry, University of Otago, Dunedin, New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington, New Zealand
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14
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Hiraoka S. Unresolved Issues that Remain in Molecular Self-Assembly. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2018. [DOI: 10.1246/bcsj.20180008] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Shuichi Hiraoka
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902, Japan
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15
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Kai S, Martí-Centelles V, Sakuma Y, Mashiko T, Kojima T, Nagashima U, Tachikawa M, Lusby PJ, Hiraoka S. Quantitative Analysis of Self-Assembly Process of a Pd 2 L 4 Cage Consisting of Rigid Ditopic Ligands. Chemistry 2017; 24:663-671. [PMID: 29044811 DOI: 10.1002/chem.201704285] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Indexed: 12/20/2022]
Abstract
The self-assembly process of a Pd2 L4 cage complex consisting of rigid ditopic ligands, in which two 3-pyridyl groups are connected to a benzene ring through acetylene bonds and PdII ions was revealed by a recently developed quantitative analysis of self-assembly process (QASAP), with which the self-assembly process of coordination assemblies can be investigated by monitoring the evolution with time of the average composition of all the intermediates. QASAP revealed that the rate-determining steps of the cage formation are the intramolecular ligand exchanges in the final stage of the self-assembly: [Pd2 L4 Py*2 ]4+ →[Pd2 L4 Py*1 ]4+ +Py* and [Pd2 L4 Py*1 ]4+ →[Pd2 L4 ]4+ +Py* (Py*: 3-chloropyridine, which was used as a leaving ligand on the metal source). The energy barriers for the two reactions were determined to be 22.3 and 21.9 kcal mol-1 , respectively. DFT calculations of the transition-state (TS) structures for the two steps indicated that the distortion of the trigonal-bipyramidal PdII center at the TS geometries increases the activation free energy of the two steps.
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Affiliation(s)
- Shumpei Kai
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo, 153-8902, Japan
| | - Vicente Martí-Centelles
- EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh, Scotland, EH9 3FJ, UK
| | - Yui Sakuma
- Quantum Chemistry Division, Graduate School of Science, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama-city, Kanagawa, 236-0027, Japan
| | - Takako Mashiko
- Quantum Chemistry Division, Graduate School of Science, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama-city, Kanagawa, 236-0027, Japan
| | - Tatsuo Kojima
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo, 153-8902, Japan
| | - Umpei Nagashima
- Foundation for Computational Science (FOCUS), 7-1-28, Minatojimaminatomachi, Chuo-ku, Kobe, 650-0047, Japan
| | - Masanori Tachikawa
- Quantum Chemistry Division, Graduate School of Science, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama-city, Kanagawa, 236-0027, Japan
| | - Paul J Lusby
- EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh, Scotland, EH9 3FJ, UK
| | - Shuichi Hiraoka
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo, 153-8902, Japan
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16
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Wang C, Tian L, Zhu W, Wang S, Gao N, Zhou K, Yin X, Zhang W, Zhao L, Li G. Molecular cage-bridged plasmonic structures with well-defined nanogaps as well as the capability of reversible and selective guest trapping. Chem Sci 2017; 9:889-895. [PMID: 29629155 PMCID: PMC5873215 DOI: 10.1039/c7sc03536e] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2017] [Accepted: 11/17/2017] [Indexed: 12/14/2022] Open
Abstract
Creating well-defined plasmonic hotspots with enormous field enhancements as well as the capability of selectively trapping targeted molecules into hotspots is of critical importance and a prerequisite for numerous plasmon-assisted applications, but it represents a great challenge. In this work, a robust molecular cage decorated with thioether moieties at the periphery was designed and synthesized. By using the synthesized cage as a linker, a series of molecular cage-bridged plasmonic structures with well-defined nanogaps (hotspots) were fabricated in an efficient and controllable fashion. It was found both experimentally and theoretically that the nanogaps of about 1.2 nm created by the molecular cage in the resultant plasmonic structures led to a strong plasmon coupling, thus inducing great field enhancement inside the nanogaps. More importantly, the embedded molecular cages endowed the formed hotspots with the capability of selectively trapping targeted molecules, offering huge opportunities for many emergent applications. As a demonstration, the hotspots constructed were used as a unique nanoreactor, and under mild conditions two types of plasmon-driven chemical transformation were successfully performed. All the results clearly indicate that the integration of the host-guest chemistry of the molecular cage with the plasmon-coupling effect of metal particles afforded a new class of plasmonic structures, showing great potential for facilitating a broad variety of plasmon-based applications.
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Affiliation(s)
- Chen Wang
- Department of Chemistry , Key Lab of Organic Optoelectronics & Molecular Engineering , Tsinghua University , Beijing 100084 , China .
| | - Li Tian
- Department of Chemistry , Key Lab of Organic Optoelectronics & Molecular Engineering , Tsinghua University , Beijing 100084 , China .
| | - Wei Zhu
- Advanced Materials Laboratory , Sandia National Laboratories Albuquerque , New Mexico 87185 , USA
| | - Shiqiang Wang
- Department of Chemistry , Key Lab of Organic Optoelectronics & Molecular Engineering , Tsinghua University , Beijing 100084 , China .
| | - Ning Gao
- Department of Chemistry , Key Lab of Organic Optoelectronics & Molecular Engineering , Tsinghua University , Beijing 100084 , China .
| | - Kang Zhou
- Department of Chemistry , Key Lab of Organic Optoelectronics & Molecular Engineering , Tsinghua University , Beijing 100084 , China .
| | - Xianpeng Yin
- Department of Chemistry , Key Lab of Organic Optoelectronics & Molecular Engineering , Tsinghua University , Beijing 100084 , China .
| | - Wanlin Zhang
- Department of Chemistry , Key Lab of Organic Optoelectronics & Molecular Engineering , Tsinghua University , Beijing 100084 , China .
| | - Liang Zhao
- Department of Chemistry , Key Lab of Organic Optoelectronics & Molecular Engineering , Tsinghua University , Beijing 100084 , China .
| | - Guangtao Li
- Department of Chemistry , Key Lab of Organic Optoelectronics & Molecular Engineering , Tsinghua University , Beijing 100084 , China .
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17
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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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18
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Rota Martir D, Escudero D, Jacquemin D, Cordes DB, Slawin AMZ, Fruchtl HA, Warriner SL, Zysman‐Colman E. Homochiral Emissive Λ 8 - and Δ 8 -[Ir 8 Pd 4 ] 16+ Supramolecular Cages. Chemistry 2017; 23:14358-14366. [PMID: 28783869 PMCID: PMC5656816 DOI: 10.1002/chem.201703273] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Indexed: 12/24/2022]
Abstract
Synthetic self-assembly is a powerful technique for the bottom-up construction of discrete and well-defined polyhedral nanostructures resembling the spherical shape of large biological systems. In recent years, numerous Archimedean-shaped coordination cages have been reported based on the assembly of bent monodentate organic ligands containing two or more distal pyridyl rings and square-planar PdII ions. The formation of photoactive PdII metallamacrocycles and cages, however, remain rare. Here we report the first examples of emissive and homochiral supramolecular cages of the form [Ir8 Pd4 ]16+ . These cages provide a suitably sized cavity to host large guest molecules. Importantly, encapsulation and energy transfer have been observed between the blue-emitting NBu4 [Ir(dFppy)2 (CN)2 ] guest and the red-emitting Δ8 -[Ir8 Pd4 ]16+ cage.
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Affiliation(s)
- Diego Rota Martir
- Organic Semiconductor CentreEaStCHEM School of ChemistryUniversity of St AndrewsSt Andrews, FifeKY16 9STUK
| | - Daniel Escudero
- CEISAM UMR CNRS 6230Université de Nantes2 rue de la Houssinière, BP 9220844322Nantes Cedex 3France
| | - Denis Jacquemin
- CEISAM UMR CNRS 6230Université de Nantes2 rue de la Houssinière, BP 9220844322Nantes Cedex 3France
- Institut Universitaire de France1, rue Descartes75005Paris Cedex 5France
| | - David B. Cordes
- Organic Semiconductor CentreEaStCHEM School of ChemistryUniversity of St AndrewsSt Andrews, FifeKY16 9STUK
| | - Alexandra M. Z. Slawin
- Organic Semiconductor CentreEaStCHEM School of ChemistryUniversity of St AndrewsSt Andrews, FifeKY16 9STUK
| | - Herbert A. Fruchtl
- Organic Semiconductor CentreEaStCHEM School of ChemistryUniversity of St AndrewsSt Andrews, FifeKY16 9STUK
| | | | - Eli Zysman‐Colman
- Organic Semiconductor CentreEaStCHEM School of ChemistryUniversity of St AndrewsSt Andrews, FifeKY16 9STUK
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19
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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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20
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Zhang YY, Gao WX, Lin L, Jin GX. Recent advances in the construction and applications of heterometallic macrocycles and cages. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2016.09.010] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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21
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Preston D, White KF, Lewis JEM, Vasdev RAS, Abrahams BF, Crowley JD. Solid-State Gas Adsorption Studies with Discrete Palladium(II) [Pd 2 (L) 4 ] 4+ Cages. Chemistry 2017; 23:10559-10567. [PMID: 28508442 DOI: 10.1002/chem.201701477] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Indexed: 01/03/2023]
Abstract
The need for effective CO2 capture systems remains high, and due to their tunability, metallosupramolecular architectures are an attractive option for gas sorption. While the use of extended metal organic frameworks for gas adsorption has been extensively explored, the exploitation of discrete metallocage architectures to bind gases remains in its infancy. Herein the solid state gas adsorption properties of a series of [Pd2 (L)4 ]4+ lantern shaped coordination cages (L = variants of 2,6-bis(pyridin-3-ylethynyl)pyridine), which had solvent accessible internal cavities suitable for gas binding, have been investigated. The cages showed little interaction with dinitrogen gas but were able to take up CO2 . The best performing cage reversibly sorbed 1.4 mol CO2 per mol cage at 298 K, and 2.3 mol CO2 per mol cage at 258 K (1 bar). The enthalpy of binding was calculated to be 25-35 kJ mol-1 , across the number of equivalents bound, while DFT calculations on the CO2 binding in the cage gave ΔE for the cage-CO2 interaction of 23-28 kJ mol-1 , across the same range. DFT modelling suggested that the binding mode is a hydrogen bond between the carbonyl oxygen of CO2 and the internally directed hydrogen atoms of the cage.
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Affiliation(s)
- Dan Preston
- Department of Chemistry, University of Otago, PO Box 56, Dunedin, New Zealand
| | - Keith F White
- School of Chemistry, University of Melbourne, Melbourne, Victoria, 3010, Australia
| | - James E M Lewis
- Department of Chemistry, University of Otago, PO Box 56, Dunedin, New Zealand
| | - Roan A S Vasdev
- Department of Chemistry, University of Otago, PO Box 56, Dunedin, New Zealand
| | - Brendan F Abrahams
- School of Chemistry, University of Melbourne, Melbourne, Victoria, 3010, Australia
| | - James D Crowley
- Department of Chemistry, University of Otago, PO Box 56, Dunedin, New Zealand
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22
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Preston D, Lewis JEM, Crowley JD. Multicavity [PdnL4]2n+ Cages with Controlled Segregated Binding of Different Guests. J Am Chem Soc 2017; 139:2379-2386. [DOI: 10.1021/jacs.6b11982] [Citation(s) in RCA: 103] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Dan Preston
- Department
of Chemistry, University of Otago, P.O. Box 56, Dunedin, New Zealand
| | - James E. M. Lewis
- 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
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23
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Vasdev RAS, Preston D, Crowley JD. Functional metallosupramolecular architectures using 1,2,3-triazole ligands: it's as easy as 1,2,3 “click”. Dalton Trans 2017; 46:2402-2414. [DOI: 10.1039/c6dt04702e] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Self-assembled metallosupramolecular architectures generated using “click” ligands have become an increasingly popular area of inorganic chemistry.
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Affiliation(s)
| | - Dan Preston
- Department of Chemistry
- University of Otago
- Dunedin 9054
- New Zealand
| | - James D. Crowley
- Department of Chemistry
- University of Otago
- Dunedin 9054
- New Zealand
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24
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Croué V, Krykun S, Allain M, Morille Y, Aubriet F, Carré V, Voitenko Z, Goeb S, Sallé M. A self-assembled M2L4 cage incorporating electron-rich 9-(1,3-dithiol-2-ylidene)fluorene units. NEW J CHEM 2017. [DOI: 10.1039/c7nj00062f] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
An electron-rich M2L4 cage is depicted, in which the four peripheral redox-active ligands (L) are 9-(1,3-dithiol-2-ylidene)fluorene units.
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Affiliation(s)
- V. Croué
- Laboratoire MOLTECH-Anjou
- Université d'Angers
- CNRS UMR 6200
- 49045 Angers Cedex
- France
| | - S. Krykun
- Laboratoire MOLTECH-Anjou
- Université d'Angers
- CNRS UMR 6200
- 49045 Angers Cedex
- France
| | - M. Allain
- Laboratoire MOLTECH-Anjou
- Université d'Angers
- CNRS UMR 6200
- 49045 Angers Cedex
- France
| | - Y. Morille
- Laboratoire MOLTECH-Anjou
- Université d'Angers
- CNRS UMR 6200
- 49045 Angers Cedex
- France
| | - F. Aubriet
- LCP-A2MC
- FR 2843 Institut Jean Barriol de Chimie et Physique Moléculaires et Biomoléculaires
- FR 3624 Réseau National de Spectrométrie de Masse FT-ICR à très haut champ
- Université de Lorraine
- ICPM
| | - V. Carré
- LCP-A2MC
- FR 2843 Institut Jean Barriol de Chimie et Physique Moléculaires et Biomoléculaires
- FR 3624 Réseau National de Spectrométrie de Masse FT-ICR à très haut champ
- Université de Lorraine
- ICPM
| | - Z. Voitenko
- Taras Shevchenko National University of Kyiv
- Kyiv 01033
- Ukraine
| | - S. Goeb
- Laboratoire MOLTECH-Anjou
- Université d'Angers
- CNRS UMR 6200
- 49045 Angers Cedex
- France
| | - M. Sallé
- Laboratoire MOLTECH-Anjou
- Université d'Angers
- CNRS UMR 6200
- 49045 Angers Cedex
- France
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25
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Manck S, Röger M, van der Meer M, Sarkar B. Heterotri‐ and Heteropentanuclear Copper(I)–Ferrocenyl Complexes Assembled through a “Click” Strategy: A Structural, Electrochemical, and Spectroelectrochemical Investigation. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201601075] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Sinja Manck
- Institut für Chemie und Biochemie, Anorganische ChemieFreie Universität BerlinFabeckstraße 34‐3614195BerlinGermany
| | - Marc Röger
- Institut für Chemie und Biochemie, Anorganische ChemieFreie Universität BerlinFabeckstraße 34‐3614195BerlinGermany
| | - Margarethe van der Meer
- Institut für Chemie und Biochemie, Anorganische ChemieFreie Universität BerlinFabeckstraße 34‐3614195BerlinGermany
| | - Biprajit Sarkar
- Institut für Chemie und Biochemie, Anorganische ChemieFreie Universität BerlinFabeckstraße 34‐3614195BerlinGermany
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26
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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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27
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Preston D, Barnsley JE, Gordon KC, Crowley JD. Controlled Formation of Heteroleptic [Pd2(La)2(Lb)2]4+ Cages. J Am Chem Soc 2016; 138:10578-85. [DOI: 10.1021/jacs.6b05629] [Citation(s) in RCA: 107] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Dan Preston
- Department
of Chemistry, University of Otago,
P.O. Box 56, Dunedin 9054, New Zealand
| | - Jonathan E. Barnsley
- Department
of Chemistry, University of Otago,
P.O. Box 56, Dunedin 9054, New Zealand
| | - Keith C. Gordon
- Department
of Chemistry, University of Otago,
P.O. Box 56, Dunedin 9054, New Zealand
| | - James D. Crowley
- Department
of Chemistry, University of Otago,
P.O. Box 56, Dunedin 9054, New Zealand
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28
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Johnstone MD, Schwarze EK, Ahrens J, Schwarzer D, Holstein JJ, Dittrich B, Pfeffer FM, Clever GH. Desymmetrization of an Octahedral Coordination Complex Inside a Self-Assembled Exoskeleton. Chemistry 2016; 22:10791-5. [DOI: 10.1002/chem.201602497] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Indexed: 01/04/2023]
Affiliation(s)
- Mark D. Johnstone
- Research Centre for Chemistry and Biotechnology, School of Life and Environmental Sciences; Deakin University; Geelong Victoria 3217 Australia
- Institute for Inorganic Chemistry; Georg-August University Göttingen; Tammannstr. 4 37077 Göttingen Germany
- Faculty of Chemistry and Chemical Biology; TU Dortmund; Otto-Hahn-Str. 6 44227 Dortmund Germany
| | - Eike K. Schwarze
- Institute for Inorganic Chemistry; Georg-August University Göttingen; Tammannstr. 4 37077 Göttingen Germany
| | - Jennifer Ahrens
- Max-Planck-Institute of Biophysical Chemistry; Am Faßberg 11 37077 Göttingen Germany
| | - Dirk Schwarzer
- Max-Planck-Institute of Biophysical Chemistry; Am Faßberg 11 37077 Göttingen Germany
| | - Julian J. Holstein
- Faculty of Chemistry and Chemical Biology; TU Dortmund; Otto-Hahn-Str. 6 44227 Dortmund Germany
| | - Birger Dittrich
- Institute for Inorganic and Structural Chemistry; Heinrich-Heine-Universität Düsseldorf; Universitätsstr. 1 40225 Düsseldorf Germany
| | - Frederick M. Pfeffer
- Research Centre for Chemistry and Biotechnology, School of Life and Environmental Sciences; Deakin University; Geelong Victoria 3217 Australia
| | - Guido H. Clever
- Institute for Inorganic Chemistry; Georg-August University Göttingen; Tammannstr. 4 37077 Göttingen Germany
- Faculty of Chemistry and Chemical Biology; TU Dortmund; Otto-Hahn-Str. 6 44227 Dortmund Germany
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29
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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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30
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Rama T, Alvariño C, Domarco O, Platas-Iglesias C, Blanco V, García MD, Peinador C, Quintela JM. Self-assembly of Pd2L2 Metallacycles Owning Diversely Functionalized Racemic Ligands. Inorg Chem 2016; 55:2290-8. [DOI: 10.1021/acs.inorgchem.5b02650] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Tamara Rama
- Departamento de Química Fundamental
and Centro de Investigacións Científicas Avanzadas,
Facultade de Ciencias, Universidade da Coruña, E-15071 A Coruña, Spain
| | - Cristina Alvariño
- Departamento de Química Fundamental
and Centro de Investigacións Científicas Avanzadas,
Facultade de Ciencias, Universidade da Coruña, E-15071 A Coruña, Spain
| | - Olaya Domarco
- Departamento de Química Fundamental
and Centro de Investigacións Científicas Avanzadas,
Facultade de Ciencias, Universidade da Coruña, E-15071 A Coruña, Spain
| | - Carlos Platas-Iglesias
- Departamento de Química Fundamental
and Centro de Investigacións Científicas Avanzadas,
Facultade de Ciencias, Universidade da Coruña, E-15071 A Coruña, Spain
| | - Víctor Blanco
- Departamento de Química Orgánica,
Facultad de Ciencias, Universidad de Granada, Campus Fuentenueva S/N, 18071 Granada, Spain
| | - Marcos D. García
- Departamento de Química Fundamental
and Centro de Investigacións Científicas Avanzadas,
Facultade de Ciencias, Universidade da Coruña, E-15071 A Coruña, Spain
| | - Carlos Peinador
- Departamento de Química Fundamental
and Centro de Investigacións Científicas Avanzadas,
Facultade de Ciencias, Universidade da Coruña, E-15071 A Coruña, Spain
| | - José M. Quintela
- Departamento de Química Fundamental
and Centro de Investigacións Científicas Avanzadas,
Facultade de Ciencias, Universidade da Coruña, E-15071 A Coruña, Spain
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31
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Schmidt A, Molano V, Hollering M, Pöthig A, Casini A, Kühn FE. Evaluation of New Palladium Cages as Potential Delivery Systems for the Anticancer Drug Cisplatin. Chemistry 2016; 22:2253-6. [DOI: 10.1002/chem.201504930] [Citation(s) in RCA: 97] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Indexed: 12/13/2022]
Affiliation(s)
- Andrea Schmidt
- Department of Chemistry; Catalysis Research Center; Technische Universität München; Lichtenbergstrasse 4 85747 Garching Germany
| | - Viviana Molano
- Dept. of Pharmacokinetics, Toxicology and Targeting; Research Institute of Pharmacy; University of Groningen; Antonius Deusinglaan 1 9713 AV Groningen The Netherlands
| | - Manuela Hollering
- Department of Chemistry; Catalysis Research Center; Technische Universität München; Lichtenbergstrasse 4 85747 Garching Germany
| | - Alexander Pöthig
- Department of Chemistry; Catalysis Research Center; Technische Universität München; Lichtenbergstrasse 4 85747 Garching Germany
| | - Angela Casini
- Dept. of Pharmacokinetics, Toxicology and Targeting; Research Institute of Pharmacy; University of Groningen; Antonius Deusinglaan 1 9713 AV Groningen The Netherlands
- School of Chemistry; Cardiff University; Park Place CF103AT Cardiff UK
| | - Fritz E. Kühn
- Department of Chemistry; Catalysis Research Center; Technische Universität München; Lichtenbergstrasse 4 85747 Garching Germany
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32
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Schmidt A, Hollering M, Drees M, Casini A, Kühn FE. Supramolecular exo-functionalized palladium cages: fluorescent properties and biological activity. Dalton Trans 2016; 45:8556-65. [DOI: 10.1039/c6dt00654j] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Self-assembled Pd(ii) coordination cages exhibit promising anticancer activities, while the emission properties studied by fluorescence spectroscopy and DFT calculations are limited.
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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
| | - Markus Drees
- Molecular Catalysis
- Catalysis Research Center and Department of Chemistry
- Technische Universität München
- 85747 Garching bei München
- Germany
| | - 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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33
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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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34
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Preston D, McNeill SM, Lewis JEM, Giles GI, Crowley JD. Enhanced kinetic stability of [Pd2L4]4+ cages through ligand substitution. Dalton Trans 2016; 45:8050-60. [DOI: 10.1039/c6dt00133e] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
[Pd2(tripy)4]4+ cage architectures (where tripy = 2,6-bis(pyridin-3-ylethynyl)pyridine) were made more kinetically robust in the presence of range of nucleophiles by the addition of amino groups in either the 2-(2A-tripy) or 3-(3A-tripy) positions of the tripy ligands' terminal pyridines, with the [Pd2(2A-tripy)4]4+ cage proving the most stable.
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Affiliation(s)
- Dan Preston
- Department of Chemistry
- University of Otago
- Dunedin
- New Zealand
| | - Samantha M. McNeill
- Department of Pharmacology and Toxicology
- University of Otago
- Dunedin
- New Zealand
| | | | - Gregory. I. Giles
- Department of Pharmacology and Toxicology
- University of Otago
- Dunedin
- New Zealand
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35
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Kim TY, Lucas NT, Crowley JD. A diaryl-linked [Pd2L4]4+ metallosupramolecular architecture: synthesis, structures and cisplatin binding studies. Supramol Chem 2015. [DOI: 10.1080/10610278.2015.1063633] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Tae Y. Kim
- Department of Chemistry, University of Otago, P.O. Box 56, Dunedin, New Zealand
| | - Nigel T. Lucas
- 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
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36
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Bruce MI, Burgun A, George J, Nicholson BK, Parker CR, Skelton BW, Scoleri N, Sumby CJ, Zaitseva NN. Some reactions of azides with diynyl-bis(phosphine)ruthenium-cyclopentadienyl complexes. J Organomet Chem 2015. [DOI: 10.1016/j.jorganchem.2015.08.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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37
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McNeill SM, Preston D, Lewis JEM, Robert A, Knerr-Rupp K, Graham DO, Wright JR, Giles GI, Crowley JD. Biologically active [Pd2L4](4+) quadruply-stranded helicates: stability and cytotoxicity. Dalton Trans 2015; 44:11129-36. [PMID: 25997516 DOI: 10.1039/c5dt01259g] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
There is emerging interest in the anti-proliferative effects of metallosupramolecular systems due to the different size and shape of these metallo-architectures compared to traditional small molecule drugs. Palladium(II)-containing systems are the most abundant class of metallosupramolecular complexes, yet their biological activity has hardly been examined. Here a small series of [Pd2(L)4](BF4)4 quadruply-stranded, dipalladium(II) architectures were screened for their cytotoxic effects against three cancer cell lines and one non-malignant line. The helicates exhibited a range of cytotoxic properties, with the most cytotoxic complex [Pd2(hextrz)4](BF4)4 possessing low micromolar IC50 values against all of the cell lines tested, while the other helicates displayed moderate or no cytotoxicity. Against the MDA-MB-231 cell line, which is resistant to platinum-based drugs, [Pd2(hextrz)4](BF4)4 was 7-fold more active than cisplatin. Preliminary mechanistic studies indicate that the [Pd2(hextrz)4](BF4)4 helicate does not induce cell death in the same way as clinically used metal complexes such as cisplatin. Rather than interacting with DNA, the helicate appears to disrupt the cell membrane. These studies represent the first biological characterisation of quadruply-stranded helicate architectures, and provide insight into the design requirements for the development of biologically active and stable palladium(II)-containing metallosupramolecular architectures.
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Affiliation(s)
- Samantha M McNeill
- Department of Pharmacology and Toxicology, University of Otago, P.O. Box 913, Dunedin, New Zealand.
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Cook TR, Stang PJ. Recent Developments in the Preparation and Chemistry of Metallacycles and Metallacages via Coordination. Chem Rev 2015; 115:7001-45. [DOI: 10.1021/cr5005666] [Citation(s) in RCA: 1299] [Impact Index Per Article: 144.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Timothy R. Cook
- Department
of Chemistry, University at Buffalo, State University of New York, 359 Natural Sciences Complex, Buffalo, New York 14260, United States
| | - Peter J. Stang
- Department
of Chemistry, University of Utah, 315 S. 1400 E. Room 2020, Salt Lake City, Utah 84112, United States
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Acharyya K, Mukherjee PS. Postsynthetic Exterior Decoration of an Organic Cage by Copper(I)-Catalysed A3-Coupling and Detection of Nitroaromatics. Chemistry 2015; 21:6823-31. [DOI: 10.1002/chem.201406581] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2014] [Indexed: 01/31/2023]
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Wang W, Sun B, Wang XQ, Ren YY, Chen LJ, Ma J, Zhang Y, Li X, Yu Y, Tan H, Yang HB. Discrete Stimuli-Responsive Multirotaxanes with Supramolecular Cores Constructed through a Modular Approach. Chemistry 2015; 21:6286-94. [DOI: 10.1002/chem.201500286] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Indexed: 01/03/2023]
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Wang JM, Yu SB, Li ZM, Wang QR, Li ZT. Mechanism of samarium-catalyzed 1,5-regioselective azide-alkyne [3 + 2]-cycloaddition: a quantum mechanical investigation. J Phys Chem A 2015; 119:1359-68. [PMID: 25642804 DOI: 10.1021/jp5104615] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The mechanism of the samarium-catalyzed 1,5-regioselective azide-alkyne [3 + 2]-cycloaddition (SmAAC) reaction has been examined with quantum mechanical calculations at the B3LYP/6-31+G(d,p) level of theory with ECP51MWB on Sm. Four stepwise pathways were located, with two leading to the 5-endocyclic 1,5-disubstituted 1,2,3-triazole product PSmL2 (paths 1 and 2) and the other two to the exocyclic product ExoPSmCl2 (path 3) as well as 1,4-disubstituted 1,2,3-triazole RegPSmL2 (path 4), respectively. Among them, path 2 (R-COM1-TS12-COM2-TS23-COM3-TS3P-PSmL2) is the most favored one both in the gas phase and in toluene solution, which is in good agreement with the experimental data. Moreover, 1,1-insertion forming COM2 in path 2 is the rate-determining step. The computational results also infer that the participation of samarium catalyst changes the distribution of the electrostatic potential on the reactants' surface, which determines the polarization direction of the reactants and formation of different intermediates (COM1 and RegCOM1), and finally affects the regioselectivity. When solvent corrections for toluene are considered, the 1,1-insertion process is discouraged, while the intramolecular [1,3]-shift reaction is facilitated.
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Affiliation(s)
- Jing-Mei Wang
- Research Centre for Analysis & Measurement and ‡Department of Chemistry, Fudan University , Shanghai 200433, China
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43
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Preston D, Fox-Charles A, Lo WKC, Crowley JD. Chloride triggered reversible switching from a metallosupramolecular [Pd2L4]4+ cage to a [Pd2L2Cl4] metallo-macrocycle with release of endo- and exo-hedrally bound guests. Chem Commun (Camb) 2015; 51:9042-5. [DOI: 10.1039/c5cc02226f] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
A metallosupramolecular [Pd2L4]4+ cage can be cleanly, and reversibly, converted into a [Pd2L2Cl4] metallo-macrocycle upon addition or removal of chloride ions.
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Affiliation(s)
- Dan Preston
- Department of Chemistry
- University of Otago
- Dunedin
- New Zealand
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Synthesis, structure, stability and antimicrobial activity of a ruthenium(II) helicate derived from a bis-bidentate “click” pyridyl-1,2,3-triazole ligand. Inorganica Chim Acta 2015. [DOI: 10.1016/j.ica.2014.10.011] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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45
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Hettmanczyk L, Manck S, Hoyer C, Hohloch S, Sarkar B. Heterobimetallic complexes with redox-active mesoionic carbenes as metalloligands: electrochemical properties, electronic structures and catalysis. Chem Commun (Camb) 2015; 51:10949-52. [DOI: 10.1039/c5cc01578b] [Citation(s) in RCA: 86] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Electronic structures and redox-induced catalysis are presented with the first example of heterobimetallic ferrocenyl–Au(i) complexes with mesoionic carbenes.
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Affiliation(s)
- Lara Hettmanczyk
- Institut für Chemie und Biochemie
- Freie Universität Berlin
- Berlin
- Germany
| | - Sinja Manck
- Institut für Chemie und Biochemie
- Freie Universität Berlin
- Berlin
- Germany
| | - Carolin Hoyer
- Institut für Chemie und Biochemie
- Freie Universität Berlin
- Berlin
- Germany
| | - Stephan Hohloch
- Institut für Chemie und Biochemie
- Freie Universität Berlin
- Berlin
- Germany
| | - Biprajit Sarkar
- Institut für Chemie und Biochemie
- Freie Universität Berlin
- Berlin
- Germany
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Croué V, Goeb S, Sallé M. Metal-driven self-assembly: the case of redox-active discrete architectures. Chem Commun (Camb) 2015; 51:7275-89. [DOI: 10.1039/c5cc00597c] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The growing family of redox-active rings and cages prepared using the coordination-driven self-assembly strategy is reviewed.
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Affiliation(s)
- V. Croué
- Université d'Angers
- CNRS UMR 6200
- Laboratoire MOLTECH-Anjou, 2 bd Lavoisier
- 49045 ANGERS cedex
- France
| | - S. Goeb
- Université d'Angers
- CNRS UMR 6200
- Laboratoire MOLTECH-Anjou, 2 bd Lavoisier
- 49045 ANGERS cedex
- France
| | - M. Sallé
- Université d'Angers
- CNRS UMR 6200
- Laboratoire MOLTECH-Anjou, 2 bd Lavoisier
- 49045 ANGERS cedex
- France
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Noor A, Maloney DL, Lewis JEM, Lo WKC, Crowley JD. Acid-Base Driven Ligand Exchange with Palladium(II) “Click” Complexes. ASIAN J ORG CHEM 2014. [DOI: 10.1002/ajoc.201402197] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Luo Q, Jia G, Sun J, Lin Z. Theoretical Studies on the Regioselectivity of Iridium-Catalyzed 1,3-Dipolar Azide–Alkyne Cycloaddition Reactions. J Org Chem 2014; 79:11970-80. [DOI: 10.1021/jo5018348] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Qiong Luo
- Department
of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, P. R. China
- MOE
Key Laboratory of Theoretical Environmental Chemistry, Center for
Computational Quantum Chemistry, South China Normal University, Guangzhou 510631, P. R. China
| | - Guochen Jia
- Department
of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, P. R. China
| | - Jianwei Sun
- Department
of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, P. R. China
| | - Zhenyang Lin
- Department
of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, P. R. China
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Noor A, Huff GS, Kumar SV, Lewis JEM, Paterson BM, Schieber C, Donnelly PS, Brooks HJL, Gordon KC, Moratti SC, Crowley JD. [Re(CO)3]+ Complexes of exo-Functionalized Tridentate “Click” Macrocycles: Synthesis, Stability, Photophysical Properties, Bioconjugation, and Antibacterial Activity. Organometallics 2014. [DOI: 10.1021/om500664v] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
| | | | | | | | - Brett M. Paterson
- School of Chemistry and Bio21 Molecular Science Biotechnology Institute, University of Melbourne, Melbourne 3010, Australia
| | - Christine Schieber
- School of Chemistry and Bio21 Molecular Science Biotechnology Institute, University of Melbourne, Melbourne 3010, Australia
| | - Paul S. Donnelly
- School of Chemistry and Bio21 Molecular Science Biotechnology Institute, University of Melbourne, Melbourne 3010, Australia
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Schmidt A, Casini A, Kühn FE. Self-assembled M2L4 coordination cages: Synthesis and potential applications. Coord Chem Rev 2014. [DOI: 10.1016/j.ccr.2014.03.037] [Citation(s) in RCA: 176] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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