1
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Grinde NA, Kehoe ZR, Vang HG, Mancheski LJ, Bosch E, Southern SA, Bryce DL, Bowling NP. Rapid Access to Encapsulated Molecular Rotors via Coordination-Driven Macrocycle Formation. Chemistry 2023; 29:e202301745. [PMID: 37308699 DOI: 10.1002/chem.202301745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 06/07/2023] [Accepted: 06/09/2023] [Indexed: 06/14/2023]
Abstract
Macrocycle formation that relies upon trans metal coordination of appropriately placed pyridine ligands within an arylene ethynylene construct provides rapid and reliable access to molecular rotators encapsulated within macrocyclic stators. Showing no significant close contacts to the central rotators, X-ray crystallography of AgI -coordinated macrocycles provides plausibility for unobstructed rotation or wobbling of rotators within the central cavity. Solid-state 13 C NMR of PdII -coordinated macrocycles supports the notion of unobstructed movement of simple arenes in the crystal lattice. Solution 1 H NMR studies indicate complete and immediate macrocycle formation upon the introduction of PdII to the pyridyl-based ligand at room temperature. Moreover, the formed macrocycle is stable in solution; a lack of significant changes in the 1 H NMR spectrum upon cooling to -50 °C is consistent with the absence of dynamic behavior. The synthetic route to these macrocycles is expedient and modular, providing access to rather complex constructs in four simple steps involving Sonogashira coupling and deprotection reactions.
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Affiliation(s)
- Noah A Grinde
- Chemistry Department, University of Wisconsin-Stevens Point, 2101 Fourth Avenue, Stevens Point, WI, 54481, USA
| | - Zachary R Kehoe
- Chemistry Department, University of Wisconsin-Stevens Point, 2101 Fourth Avenue, Stevens Point, WI, 54481, USA
| | - Herh G Vang
- Chemistry Department, University of Wisconsin-Stevens Point, 2101 Fourth Avenue, Stevens Point, WI, 54481, USA
| | - Lucas J Mancheski
- Chemistry Department, University of Wisconsin-Stevens Point, 2101 Fourth Avenue, Stevens Point, WI, 54481, USA
| | - Eric Bosch
- Chemistry and Biochemistry Department, Missouri State University, 901 South National Avenue, Springfield, MO, 65897, USA
| | - Scott A Southern
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario, K1N 6N5, Canada
| | - David L Bryce
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario, K1N 6N5, Canada
| | - Nathan P Bowling
- Chemistry Department, University of Wisconsin-Stevens Point, 2101 Fourth Avenue, Stevens Point, WI, 54481, USA
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2
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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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3
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Liu Y, Liao SH, Dai WT, Bai Q, Lu S, Wang H, Li X, Zhang Z, Wang P, Lu W, Zhang Q. Controlled Construction of Heteroleptic [Pd 2 (L A ) 2 (L B )(L C )] 4+ Cages: A Facile Approach for Site-Selective endo-Functionalization of Supramolecular Cavities. Angew Chem Int Ed Engl 2023; 62:e202217215. [PMID: 36495225 DOI: 10.1002/anie.202217215] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 12/08/2022] [Accepted: 12/09/2022] [Indexed: 12/14/2022]
Abstract
Construction of supramolecular structures with internal functionalities is a promising approach to build enzyme-like cavities. The endo-functionalized [Pd12 L24 ] and [Pd2 L4 ] coordination cages represent the most successful systems in this regard. However, these systems mainly contain one type of endo-moiety. We herein provide a solution for the controlled endo-functionalization of [Pd2 L4 ] cages. Site-selective introduction of the endo-functional group was achieved through the formation of heteroleptic [Pd2 (LA )2 (LB )(LC )] cages. Using two orthogonal steric control elements is the key for the selective formation of the hetero-assemblies. We demonstrated the construction of two hetero-cages with a single internal functional group as well as a hetero-cage with two distinct endohedral functionalities. The endo-functionalized hetero-cages bound sulfonate guests with fast-exchange dynamics. This strategy provides a new solution for the controlled endo-functionalization of supramolecular cavities.
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Affiliation(s)
- Yan Liu
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Shou-Heng Liao
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Wen-Tao Dai
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Qixia Bai
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou, 510006, P. R. China
| | - Shuai Lu
- College of Chemistry and Environmental Engineering, Shenzhen University, 3688 Nanhai Ave., Experimental Building, P112, Shenzhen, Guangdong 518060, P. R. China
| | - Heng Wang
- College of Chemistry and Environmental Engineering, Shenzhen University, 3688 Nanhai Ave., Experimental Building, P112, Shenzhen, Guangdong 518060, P. R. China
| | - Xiaopeng Li
- College of Chemistry and Environmental Engineering, Shenzhen University, 3688 Nanhai Ave., Experimental Building, P112, Shenzhen, Guangdong 518060, P. R. China
| | - Zhe Zhang
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou, 510006, P. R. China
| | - Pingshan Wang
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou, 510006, P. R. China
| | - Wei Lu
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Qi Zhang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
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4
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Huang X, Zhang Q. A Gourd-shaped Organometallic Coordination Cage: Synthesis and Selective Binding of Two Drug Molecules. ACTA CHIMICA SINICA 2023. [DOI: 10.6023/a22120511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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5
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6
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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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7
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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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8
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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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9
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Li C, Zhang B, Dong Y, Li Y, Wang P, Yu Y, Cheng L, Cao L. A tetraphenylethene-based Pd 2L 4 metallacage with aggregation-induced emission and stimuli-responsive behavior. Dalton Trans 2020; 49:8051-8055. [PMID: 32530004 DOI: 10.1039/d0dt00469c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A tetraphenylethene-based Pd2L4 metallacage was self-assembled from four TPE-pyridine ligands with two Pd2+ ions. This metallacage with D4 symmetry exhibited a classical aggregation-induced emission property in different solvents and reversible stimuli-responsive behaviour with chloride ions and silver ions, successively.
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Affiliation(s)
- Chenyang Li
- National Demonstration Center for Experimental Chemistry Education, Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710127, P. R. China.
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10
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Hooley RJ. No, Not That Way, the Other Way: Creating Active Sites in Self-Assembled Host Molecules. Synlett 2020. [DOI: 10.1055/s-0040-1707125] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
This Account describes our efforts over the last decade to synthesize self-assembled metal–ligand cage complexes that display reactive functional groups on their interiors. This journey has taken us down a variety of research avenues, including studying the mechanism of reversible self-assembly, analyzing ligand self-sorting properties, post-assembly reactivity, molecular recognition, and binding studies, and finally reactivity and catalysis. Each of these individual topics are discussed here, as are the lessons learned along the way and the future research outlook. These self-assembled hosts are the closest mimics of enzymes to date, as they are capable of size- and shape-selective molecular recognition, substrate activation and turnover, as well as showing less common ‘biomimetic’ properties such as the ability to employ cofactors in reactivity, and alter the prevailing mechanism of the catalyzed reactions.1 Introduction2 Paddlewheels and Self-Sorting Behavior3 First-Row Transition-Metal-Mediated Assembly: Sorting and Stereochemical Control4 Post-Assembly Reactivity5 Molecular Recognition and Catalysis6 Conclusions and Outlook
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11
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Lisboa LS, Findlay JA, Wright LJ, Hartinger CG, Crowley JD. A Reduced‐Symmetry Heterobimetallic [PdPtL
4
]
4+
Cage: Assembly, Guest Binding, and Stimulus‐Induced Switching. Angew Chem Int Ed Engl 2020; 59:11101-11107. [DOI: 10.1002/anie.202003220] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Indexed: 12/16/2022]
Affiliation(s)
- Lynn S. Lisboa
- Department of ChemistryUniversity of Otago PO Box 56 Dunedin 9054 New Zealand
| | - James A. Findlay
- Department of ChemistryUniversity of Otago PO Box 56 Dunedin 9054 New Zealand
| | - L. James Wright
- School of Chemical SciencesUniversity of Auckland Private Bag 92019 Auckland 1142 New Zealand
| | - Christian G. Hartinger
- School of Chemical SciencesUniversity of Auckland Private Bag 92019 Auckland 1142 New Zealand
| | - James D. Crowley
- Department of ChemistryUniversity of Otago PO Box 56 Dunedin 9054 New Zealand
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12
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Lisboa LS, Findlay JA, Wright LJ, Hartinger CG, Crowley JD. A Reduced‐Symmetry Heterobimetallic [PdPtL
4
]
4+
Cage: Assembly, Guest Binding, and Stimulus‐Induced Switching. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202003220] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Lynn S. Lisboa
- Department of ChemistryUniversity of Otago PO Box 56 Dunedin 9054 New Zealand
| | - James A. Findlay
- Department of ChemistryUniversity of Otago PO Box 56 Dunedin 9054 New Zealand
| | - L. James Wright
- School of Chemical SciencesUniversity of Auckland Private Bag 92019 Auckland 1142 New Zealand
| | - Christian G. Hartinger
- School of Chemical SciencesUniversity of Auckland Private Bag 92019 Auckland 1142 New Zealand
| | - James D. Crowley
- Department of ChemistryUniversity of Otago PO Box 56 Dunedin 9054 New Zealand
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13
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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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14
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Kumar A, Zangrando E, Mukherjee PS. Self-assembled Pd3L2 cages having flexible tri-imidazole donors. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.03.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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15
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Woods B, Döllerer D, Aikman B, Wenzel MN, Sayers EJ, Kühn FE, Jones AT, Casini A. Highly luminescent metallacages featuring bispyridyl ligands functionalised with BODIPY for imaging in cancer cells. J Inorg Biochem 2019; 199:110781. [PMID: 31357067 DOI: 10.1016/j.jinorgbio.2019.110781] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 07/12/2019] [Accepted: 07/14/2019] [Indexed: 01/28/2023]
Abstract
Recently, 3-dimensional supramolecular coordination complexes of the metallacage type have been shown to hold promise as drug delivery systems for different cytotoxic agents, including the anticancer drug cisplatin. However, so far only limited information is available on their uptake and sub-cellular localisation in cancer cells. With the aim of understanding the fate of metallacages in cells by fluorescence microscopy, three fluorescent Pd2L4 metallacages were designed and synthesised by self-assembly of two types of bispyridyl ligands (L), exo-functionalised with boron dipyrromethene (BODIPY) moieties, with Pd(II) ions. The cages show high quantum yields and are moderately stable in the presence of physiologically relevant concentration of glutathione. Furthermore, the cages are able to encapsulate the anticancer drug cisplatin, as demonstrated by NMR spectroscopy. Preliminary cytotoxicity studies in a small panel of human cancer cells showed that the metallacages are scarcely toxic in vitro. The marked fluorescence due to BODIPY allowed us to visualise the cages' uptake and sub-cellular localisation inside melanoma cells using fluorescence microscopy, highlighting uptake via active transport mechanisms and accumulation in cytoplasmic vesicles.
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Affiliation(s)
- Ben Woods
- School of Chemistry, Cardiff University, Park Place, CF10 3AT Cardiff, Wales, United Kingdom
| | - Daniel Döllerer
- School of Chemistry, Cardiff University, Park Place, CF10 3AT Cardiff, Wales, United Kingdom; Molecular Catalysis, Department of Chemistry, Catalysis Research Center, Technische Universität München, Lichtenbergstr. 4, 85747 Garching bei München, Germany
| | - Brech Aikman
- School of Chemistry, Cardiff University, Park Place, CF10 3AT Cardiff, Wales, United Kingdom
| | - Margot N Wenzel
- School of Chemistry, Cardiff University, Park Place, CF10 3AT Cardiff, Wales, United Kingdom
| | - Edward J Sayers
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University, CF10 3NB Cardiff, Wales, United Kingdom
| | - Fritz E Kühn
- Molecular Catalysis, Department of Chemistry, Catalysis Research Center, Technische Universität München, Lichtenbergstr. 4, 85747 Garching bei München, Germany
| | - Arwyn T Jones
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University, CF10 3NB Cardiff, Wales, United Kingdom
| | - Angela Casini
- School of Chemistry, Cardiff University, Park Place, CF10 3AT Cardiff, Wales, United Kingdom.
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16
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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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17
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Bogie PM, Miller TF, Hooley RJ. Synthesis and Applications of Endohedrally Functionalized Metal‐Ligand Cage Complexes. Isr J Chem 2018. [DOI: 10.1002/ijch.201800067] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Paul M. Bogie
- Department of Chemistry University of California – Riverside Riverside, CA 92521 U.S.A
| | - Tabitha F. Miller
- Department of Chemistry University of California – Riverside Riverside, CA 92521 U.S.A
| | - Richard J. Hooley
- Department of Chemistry University of California – Riverside Riverside, CA 92521 U.S.A
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18
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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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19
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Krick M, Holstein J, Würtele C, Clever GH. Endohedral dynamics of push-pull rotor-functionalized cages. Chem Commun (Camb) 2018; 52:10411-4. [PMID: 27484435 DOI: 10.1039/c6cc04155h] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of [Pd2L4] coordination cages featuring endohedral functionalities in central backbone positions was synthesized. Although attached via C[double bond, length as m-dash]C double bonds, the substituents behave as molecular rotors. This is explained by their pronounced donor-acceptor character which lowers rotational barriers and allows for electronic control over the spinning rates inside the cage. The dynamic behaviour of the free ligands, assembled cages and host-guest complexes is compared with the aid of NMR experiments, X-ray structure analysis and molecular modelling.
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Affiliation(s)
- Marcel Krick
- Faculty for Chemistry and Chemical Biology, TU Dortmund University, Otto-Hahn Str. 6, 44227 Dortmund, Germany.
| | - Julian Holstein
- Faculty for Chemistry and Chemical Biology, TU Dortmund University, Otto-Hahn Str. 6, 44227 Dortmund, Germany.
| | - Christian Würtele
- Institute for Inorganic Chemistry, Georg-August-University Göttingen, Tammannstr. 4, 37077 Göttingen, Germany
| | - Guido H Clever
- Faculty for Chemistry and Chemical Biology, TU Dortmund University, Otto-Hahn Str. 6, 44227 Dortmund, Germany.
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20
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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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21
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Das P, Kumar A, Howlader P, Mukherjee PS. A Self-Assembled Trigonal Prismatic Molecular Vessel for Catalytic Dehydration Reactions in Water. Chemistry 2017. [DOI: 10.1002/chem.201702263] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Paramita Das
- Inorganic and Physical Chemistry Department; Indian Institute of Science; Bangalore 560012 India
| | - Atul Kumar
- Inorganic and Physical Chemistry Department; Indian Institute of Science; Bangalore 560012 India
| | - Prodip Howlader
- Inorganic and Physical Chemistry Department; Indian Institute of Science; Bangalore 560012 India
| | - Partha Sarathi Mukherjee
- Inorganic and Physical Chemistry Department; Indian Institute of Science; Bangalore 560012 India
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Saha R, Samanta D, Bhattacharyya AJ, Mukherjee PS. Stepwise Construction of Self-Assembled Heterometallic Cages Showing High Proton Conductivity. Chemistry 2017; 23:8980-8986. [DOI: 10.1002/chem.201701596] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Indexed: 01/01/2023]
Affiliation(s)
- Rupak Saha
- Inorganic and Physical Chemistry Department; Indian Institute of Science; Bangalore- 560012 India
| | - Dipak Samanta
- Inorganic and Physical Chemistry Department; Indian Institute of Science; Bangalore- 560012 India
| | | | - Partha Sarathi Mukherjee
- Inorganic and Physical Chemistry Department; Indian Institute of Science; Bangalore- 560012 India
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23
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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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24
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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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25
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Wiley CA, Holloway LR, Miller TF, Lyon Y, Julian RR, Hooley RJ. Electronic Effects on Narcissistic Self-Sorting in Multicomponent Self-Assembly of Fe-Iminopyridine meso-Helicates. Inorg Chem 2016; 55:9805-9815. [DOI: 10.1021/acs.inorgchem.6b01644] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Calvin A. Wiley
- Department of Chemistry, University of California—Riverside, Riverside, California 92521 United States
| | - Lauren R. Holloway
- Department of Chemistry, University of California—Riverside, Riverside, California 92521 United States
| | - Tabitha F. Miller
- Department of Chemistry, University of California—Riverside, Riverside, California 92521 United States
| | - Yana Lyon
- Department of Chemistry, University of California—Riverside, Riverside, California 92521 United States
| | - Ryan. R. Julian
- Department of Chemistry, University of California—Riverside, Riverside, California 92521 United States
| | - Richard J. Hooley
- Department of Chemistry, University of California—Riverside, Riverside, California 92521 United States
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26
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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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27
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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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28
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Samanta D, Chowdhury A, Mukherjee PS. Covalent Postassembly Modification and Water Adsorption of Pd3 Self-Assembled Trinuclear Barrels. Inorg Chem 2016; 55:1562-8. [DOI: 10.1021/acs.inorgchem.5b02464] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Dipak Samanta
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - Aniket Chowdhury
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - Partha Sarathi Mukherjee
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India
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29
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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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30
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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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31
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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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32
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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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33
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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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34
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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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35
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Johnson AM, Wiley CA, Young MC, Zhang X, Lyon Y, Julian RR, Hooley RJ. Narcissistic Self-Sorting in Self-Assembled Cages of Rare Earth Metals and Rigid Ligands. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201500400] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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36
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Johnson AM, Wiley CA, Young MC, Zhang X, Lyon Y, Julian RR, Hooley RJ. Narcissistic self-sorting in self-assembled cages of rare Earth metals and rigid ligands. Angew Chem Int Ed Engl 2015; 54:5641-5. [PMID: 25784462 DOI: 10.1002/anie.201500400] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Revised: 02/23/2015] [Indexed: 11/11/2022]
Abstract
Highly selective, narcissistic self-sorting can be achieved in the formation of self-assembled cages of rare earth metals with multianionic salicylhydrazone ligands. The assembly process is highly sensitive to the length of the ligand and the coordination geometry. Most surprisingly, high-fidelity sorting is possible between ligands of identical coordination angle and geometry, differing only in a single functional group on the ligand core, which is not involved in the coordination. Supramolecular effects allow discrimination between pendant functions as similar as carbonyl or methylene groups in a complex assembly process.
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Affiliation(s)
- Amber M Johnson
- University of California Riverside, Department of Chemistry, Riverside, CA, 92521 (USA)
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37
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Brega V, Zeller M, He Y, Peter Lu H, Klosterman JK. Multi-responsive metal–organic lantern cages in solution. Chem Commun (Camb) 2015; 51:5077-80. [DOI: 10.1039/c5cc00698h] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Multi-responsive metal–organic cages bearing internal amines groups formed 1D supramolecular coordination polymers or covalent host–guest complexes from solutions of pre-assembled cages.
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Affiliation(s)
- Valentina Brega
- Center for Photochemical Sciences
- Department of Chemistry
- Bowling Green State University
- Bowling Green
- USA
| | - Matthias Zeller
- STaRBURSTT CyberInstrumentation Consortium
- Youngstown State University
- Youngstown
- USA
| | - Yufan He
- Center for Photochemical Sciences
- Department of Chemistry
- Bowling Green State University
- Bowling Green
- USA
| | - H. Peter Lu
- Center for Photochemical Sciences
- Department of Chemistry
- Bowling Green State University
- Bowling Green
- USA
| | - Jeremy K. Klosterman
- Center for Photochemical Sciences
- Department of Chemistry
- Bowling Green State University
- Bowling Green
- USA
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38
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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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39
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Browne C, Ronson TK, Nitschke JR. Palladium-Templated Subcomponent Self-Assembly of Macrocycles, Catenanes, and Rotaxanes. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201406164] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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40
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Browne C, Ronson TK, Nitschke JR. Palladium-Templated Subcomponent Self-Assembly of Macrocycles, Catenanes, and Rotaxanes. Angew Chem Int Ed Engl 2014; 53:10701-5. [DOI: 10.1002/anie.201406164] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2014] [Indexed: 11/11/2022]
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41
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Lewis JEM, Elliott ABS, McAdam CJ, Gordon KC, Crowley JD. ‘Click’ to functionalise: synthesis, characterisation and enhancement of the physical properties of a series of exo- and endo-functionalised Pd2L4nanocages. Chem Sci 2014. [DOI: 10.1039/c4sc00434e] [Citation(s) in RCA: 100] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Facile CuAAC ‘click’ chemistry has been utilised toexo-functionalise Pd2L4host nanocages with electrochemically active, emissive and solubilising groups.
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Affiliation(s)
| | - Anastasia B. S. Elliott
- Department of Chemistry
- University of Otago
- Dunedin, New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology
- New Zealand
| | - C. John McAdam
- Department of Chemistry
- University of Otago
- Dunedin, New Zealand
| | - Keith C. Gordon
- Department of Chemistry
- University of Otago
- Dunedin, New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology
- New Zealand
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42
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Neelakandan PP, Jiménez A, Nitschke JR. Fluorophore incorporation allows nanomolar guest sensing and white-light emission in M4L6 cage complexes. Chem Sci 2014. [DOI: 10.1039/c3sc53172d] [Citation(s) in RCA: 113] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
M4L6 cages built from BODIPY- and pyrene-containing subcomponents perform multiple functions: sensing anions and amino acids, and forming a white-light emitting complex with perylene.
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Affiliation(s)
| | - Azucena Jiménez
- Department of Chemistry
- University of Cambridge
- Cambridge CB2 1EW, UK
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43
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Chatelet B, Gornitzka H, Dufaud V, Jeanneau E, Dutasta JP, Martinez A. Superbases in Confined Space: Control of the Basicity and Reactivity of the Proton Transfer. J Am Chem Soc 2013; 135:18659-64. [DOI: 10.1021/ja409444s] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Bastien Chatelet
- Laboratoire
de Chimie, École Normale Supérieure de
Lyon, CNRS, UCBL, 46 Allée d’Italie, F-69364 Lyon, France
| | - Heinz Gornitzka
- Laboratoire de
Chimie de Coordination du CNRS, 205
Route de Narbonne, BP 44099, F-31077 Toulouse Cedex 4, France
- Université
de Toulouse, UPS, INPT, F-31077 Toulouse Cedex 4, France
| | - Véronique Dufaud
- Laboratoire de
Chimie, Catalyse, Polymère, Procédés (C2P2),
Université de Lyon, CNRS, Université Claude Bernard
Lyon1, CPE Lyon, 43 Boulevard du 11
Novembre 1918, F-69616 Villeurbanne Cedex, France
| | - Erwann Jeanneau
- Centre de Diffractométrie
Henri Longchambon, Universite Claude Bernard Lyon 1, Site CLEA—Bâtiment ISA, 5 Rue de
La Doua, F-69100 Villeurbanne, France
| | - Jean-Pierre Dutasta
- Laboratoire
de Chimie, École Normale Supérieure de
Lyon, CNRS, UCBL, 46 Allée d’Italie, F-69364 Lyon, France
| | - Alexandre Martinez
- Laboratoire
de Chimie, École Normale Supérieure de
Lyon, CNRS, UCBL, 46 Allée d’Italie, F-69364 Lyon, France
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44
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Uehara K, Oishi T, Hirose T, Mizuno N. Synthesis and characterization of molecular hexagons and rhomboids and subsequent encapsulation of Keggin-type polyoxometalates by molecular hexagons. Inorg Chem 2013; 52:11200-9. [PMID: 24050509 DOI: 10.1021/ic401428v] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Structural control among hexagonal (trimer), rhomboidal (dimer), and infinite-chain supramolecular complexes with three different supporting ligands of ethylenediamine (en), N,N,N',N'-tetramethylethylenediamine (en*), and 1,2-bis(diphenyl)phosphinoethane (dppe) [(en)Pd(L)]3(OTf)6 1t·OTf, [(en*)Pd(L)]2(PF6)4 2d·PF6, and [(dppe)Pd(L)(OTf)2]∞ 3·OTf (OTf = trifluoromethane sulfonate; L = 1,3-bis(4-pyridylethynyl)benzene) in the solid and solution states was investigated. The encapsulation of a large Keggin-type polyoxometalate [α-PW12O40](3-) by these complexes was also examined. As the steric bulkiness of the supporting ligands increased in the order of en < en* < dppe, the hexagonal, rhomboidal, and infinite-chain structures were obtained, as confirmed by X-ray crystallography. In solution, equilibrium between the molecular hexagon (1t·OTf/2t·PF6) and the molecular rhomboid (1d·OTf/2d·PF6) was observed in the en/en* ligand systems, whereas 3·OTf with the dppe ligand did not exhibit equilibrium and instead existed as a single species. These phenomena were established by cold-spray ionization mass spectroscopy (CSI-MS) and (1)H diffusion ordered NMR spectroscopy (DOSY). The addition of the highly negatively charged Keggin-type phosphododecatungstate [α-PW12O40](3-) to a solution of 2t/2d·PF6 resulted in the encapsulation of the tungstate species in the cavity of the molecular hexagon to form {[(en*)Pd(L)]3[⊃α-PW12O40]}(PF6)3 2t·[α-PW12O40](3-), as confirmed by a combination of (1)H and (31)P DOSY and CSI-MS spectral data.
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Affiliation(s)
- Kazuhiro Uehara
- Department of Applied Chemistry, School of Engineering, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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Pollock JB, Cook TR, Schneider GL, Lutterman DA, Davies AS, Stang PJ. Photophysical Properties of Endohedral Amine-Functionalized Bis(phosphine) Pt(II) Complexes as Models for Emissive Metallacycles. Inorg Chem 2013; 52:9254-65. [DOI: 10.1021/ic400491q] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- J. Bryant Pollock
- Department
of Chemistry, University of Utah, 315 South
1400 East, RM 2020, Salt Lake City, Utah 84412, United States
| | - Timothy R. Cook
- Department
of Chemistry, University of Utah, 315 South
1400 East, RM 2020, Salt Lake City, Utah 84412, United States
| | - Gregory L. Schneider
- Department
of Chemistry, University of Utah, 315 South
1400 East, RM 2020, Salt Lake City, Utah 84412, United States
| | - Daniel A. Lutterman
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee
37831, United States
| | - Andrew S. Davies
- Department
of Chemistry, University of Utah, 315 South
1400 East, RM 2020, Salt Lake City, Utah 84412, United States
| | - Peter J. Stang
- Department
of Chemistry, University of Utah, 315 South
1400 East, RM 2020, Salt Lake City, Utah 84412, United States
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Young MC, Johnson AM, Gamboa AS, Hooley RJ. Achiral endohedral functionality provides stereochemical control in Fe(II)-based self-assemblies. Chem Commun (Camb) 2013; 49:1627-9. [PMID: 23337949 DOI: 10.1039/c3cc37912d] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Multicomponent Fe(II)-iminopyridine-based self-assemblies have been synthesized with variably sized internal functionality. Larger internal functions provide increased strain to the complex and confer diastereocontrol upon the assembly process. Complete diastereocontrol is possible upon the introduction of large achiral groups on the cavity interior.
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Affiliation(s)
- Michael C Young
- Department of Chemistry, University of California - Riverside, Riverside, California 92521, USA
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Riddell IA, Hristova YR, Clegg JK, Wood CS, Breiner B, Nitschke JR. Five Discrete Multinuclear Metal-Organic Assemblies from One Ligand: Deciphering the Effects of Different Templates. J Am Chem Soc 2013; 135:2723-33. [DOI: 10.1021/ja311285b] [Citation(s) in RCA: 136] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Imogen A. Riddell
- Department of Chemistry, University of Cambridge, Lensfield Road,
Cambridge CB2 1EW, U.K
| | - Yana R. Hristova
- Department of Chemistry, University of Cambridge, Lensfield Road,
Cambridge CB2 1EW, U.K
| | - Jack K. Clegg
- Department of Chemistry, University of Cambridge, Lensfield Road,
Cambridge CB2 1EW, U.K
| | - Christopher S. Wood
- Department of Chemistry, University of Cambridge, Lensfield Road,
Cambridge CB2 1EW, U.K
| | - Boris Breiner
- Department of Chemistry, University of Cambridge, Lensfield Road,
Cambridge CB2 1EW, U.K
| | - Jonathan R. Nitschke
- Department of Chemistry, University of Cambridge, Lensfield Road,
Cambridge CB2 1EW, U.K
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Johnson AM, Young MC, Hooley RJ. Reversible multicomponent self-assembly mediated by bismuth ions. Dalton Trans 2013; 42:8394-401. [DOI: 10.1039/c3dt50578b] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Lewis JEM, John McAdam C, Gardiner MG, Crowley JD. A facile “click” approach to functionalised metallosupramolecular architectures. Chem Commun (Camb) 2013; 49:3398-400. [DOI: 10.1039/c3cc41209a] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Pollock JB, Cook TR, Stang PJ. Photophysical and computational investigations of bis(phosphine) organoplatinum(II) metallacycles. J Am Chem Soc 2012; 134:10607-20. [PMID: 22691193 DOI: 10.1021/ja3036515] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
A series of endohedral and exohedral amine-functionalized ligands were synthesized and used in the construction of supramolecular D(2h) rhomboids and a D(6h) hexagon. These supramolecular polygons were obtained via self-assembly of 120° dipyridyl donors with 180° or 120° diplatinum precursors when combined in 1:1 ratios. Steady-state absorption and emission spectra were collected for each ligand and metallacycle. Density functional theory (DFT) and time-dependent DFT calculations were employed to probe the nature of the observed optical transitions for the rhomboids. The emissive properties of these bis(phosphine) organoplatinum metallacycles arise from ligand-centered transitions involving π-type molecular orbitals with modest contributions from metal-based atomic orbitals. The D(2h) rhomboid self-assembled from 2,6-bis(4-pyridylethynyl)aniline and a 60° organoplatinum(II) acceptor has a low-energy excited state in the visible region and emits above 500 nm, properties which greatly differ from those of the parent 2,6-bis(4-pyridylethynyl)aniline ligand.
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Affiliation(s)
- J Bryant Pollock
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112, USA
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