251
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Domoto Y, Abe M, Kikuchi T, Fujita M. Self‐Assembly of Coordination Polyhedra with Highly Entangled Faces Induced by Metal–Acetylene Interactions. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201913142] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Yuya Domoto
- Department of Applied ChemistrySchool of EngineeringThe University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
| | - Masahiro Abe
- Department of Applied ChemistrySchool of EngineeringThe University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
| | - Takashi Kikuchi
- Rigaku Corporation 3-9-12 Matsubaracho, Akishima Tokyo 196-8666 Japan
| | - Makoto Fujita
- Department of Applied ChemistrySchool of EngineeringThe University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
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252
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Mongin C, Ardoy AM, Méreau R, Bassani DM, Bibal B. Singlet oxygen stimulus for switchable functional organic cages. Chem Sci 2020; 11:1478-1484. [PMID: 34094497 PMCID: PMC8150101 DOI: 10.1039/c9sc05354a] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Molecular cages 1a and 2a incorporating a 9,10-diphenylanthracene (DPA) chromophore were synthesized through a templated ring-closure metathesis approach that allows variation in cavity size through the introduction of up to three different pillars. Reversible Diels–Alder reaction between the DPA moiety and photogenerated singlet oxygen smoothly converted 1a and 2a to the corresponding endoperoxide cages 1b and 2b, which are converted back to 1a and 2a upon heating. Endoperoxide formation constitutes a reversible covalent signal that combines structural changes in the interior of the cage with introduction of two additional coordination sites. This results in a large modulation of the binding ability of the receptors attributed to a change in the location of the preferred binding site owing to the added coordination by the endoperoxide oxygen lone pairs. Cages 1a and 2a form complexes with sodium and cesium whose association constants are modified by 4–20 fold for Na+ and 200–450 fold for Cs+ upon conversion to 1b and 2b. DFT calculations show that in the anthracene form, cages 1a and 2a can bind 2 metal cations in their periphery so that each cation is coordinated by 4 oxygens and one amine nitrogen, whereas the endoperoxide cages 1b and 2b bind cations centrally in a geometry that favors coordination to the endoperoxide oxygens. Allosteric switchable organic cages allow variability in cation recognition.![]()
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Affiliation(s)
- Cédric Mongin
- Université de Bordeaux, CNRS, Bordeaux INP, ISM UMR 5255 351 cours de la Libération 33400 Talence France
| | - Alejandro Mendez Ardoy
- Université de Bordeaux, CNRS, Bordeaux INP, ISM UMR 5255 351 cours de la Libération 33400 Talence France
| | - Raphaël Méreau
- Université de Bordeaux, CNRS, Bordeaux INP, ISM UMR 5255 351 cours de la Libération 33400 Talence France
| | - Dario M Bassani
- Université de Bordeaux, CNRS, Bordeaux INP, ISM UMR 5255 351 cours de la Libération 33400 Talence France
| | - Brigitte Bibal
- Université de Bordeaux, CNRS, Bordeaux INP, ISM UMR 5255 351 cours de la Libération 33400 Talence France
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253
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Bierschenk SM, Bergman RG, Raymond KN, Toste FD. A Nanovessel-Catalyzed Three-Component Aza-Darzens Reaction. J Am Chem Soc 2020; 142:733-737. [DOI: 10.1021/jacs.9b13177] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Stephen M. Bierschenk
- Chemical Sciences Division, Lawrence Berkeley National Laboratory and Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Robert G. Bergman
- Chemical Sciences Division, Lawrence Berkeley National Laboratory and Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Kenneth N. Raymond
- Chemical Sciences Division, Lawrence Berkeley National Laboratory and Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - F. Dean Toste
- Chemical Sciences Division, Lawrence Berkeley National Laboratory and Department of Chemistry, University of California, Berkeley, California 94720, United States
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254
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Lai YL, Wang XZ, Dai RR, Huang YL, Zhou XC, Zhou XP, Li D. Self-assembly of mixed-valence and heterometallic metallocycles: efficient catalysts for the oxidation of alcohols to aldehydes in ambient air. Dalton Trans 2020; 49:7304-7308. [DOI: 10.1039/d0dt01340d] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two mixed-valence CuII/CuI and two heterometallic CuII/AgI metallocycles have been synthesized by the assembly of designed metalloligands and CuI/AgI ions, respectively.
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Affiliation(s)
- Ya-Liang Lai
- College of Chemistry and Materials Science
- Jinan University
- Guangzhou
- P. R. China
| | - Xue-Zhi Wang
- College of Chemistry and Materials Science
- Jinan University
- Guangzhou
- P. R. China
| | - Rui-Rong Dai
- College of Chemistry and Materials Science
- Jinan University
- Guangzhou
- P. R. China
| | - Yong-Liang Huang
- College of Chemistry and Materials Science
- Jinan University
- Guangzhou
- P. R. China
| | - Xian-Chao Zhou
- College of Chemistry and Materials Science
- Jinan University
- Guangzhou
- P. R. China
| | - Xiao-Ping Zhou
- College of Chemistry and Materials Science
- Jinan University
- Guangzhou
- P. R. China
| | - Dan Li
- College of Chemistry and Materials Science
- Jinan University
- Guangzhou
- P. R. China
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255
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256
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Mayans J, Font-Bardia M, Escuer A. Lithium cations in a self-assembled electrostatic nanocapsule. Dalton Trans 2019; 48:16158-16161. [PMID: 31624820 DOI: 10.1039/c9dt03600h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cascade self-assembly of small components, without the employment of preformed hosts, yielded a {Ni12Li2} nanometric capsule with multiple endo- and exo-guests (water molecules, Li+, and Et3NH+ cations) linked to selective hydrophilic and hydrophobic binding sites of NiII hexanuclear metallamacrocycles. The synthesis was achieved by using (Bu4N)N3 as a starting reagent instead of the conventional sodium azide to selectively introduce the Li+ cations.
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Affiliation(s)
- Júlia Mayans
- Departament de Química Inorgànica i Orgànica, SeccióInorgànica and Institute of Nanoscience and Nanotechnology (IN2UB), Universitat de Barcelona, Martí i Franquès 1-11, Barcelona-08028, Spain.
| | - Mercé Font-Bardia
- Departament de Mineralogia, Cristal·lografia i DipòsitsMinerals and Unitat de Difracció de R-X, Centre Científic i Tecnològic de la Universitat de Barcelona (CCiTUB), Universitat de Barcelona, Solé i Sabarís 1-3, 08028 Barcelona, Spain
| | - Albert Escuer
- Departament de Química Inorgànica i Orgànica, SeccióInorgànica and Institute of Nanoscience and Nanotechnology (IN2UB), Universitat de Barcelona, Martí i Franquès 1-11, Barcelona-08028, Spain.
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257
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Ma L, Yang T, Zhang Z, Yin S, Song Z, Shi W, Chu D, Zhang Y, Zhang M. Cyanostilbene-based near-infrared emissive platinum(II) metallacycles for cancer theranostics. CHINESE CHEM LETT 2019. [DOI: 10.1016/j.cclet.2019.07.043] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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258
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Tang JH, Ni R, He YQ, Vanderlinden RT, Li Y, Shi B, Li ZY, Wang H, Li X, Sun Y, Zhong YW, Stang PJ. Metal-Organic Pt(II) Hexagonal-Prism Macrocycles and Their Photophysical Properties. Inorg Chem 2019; 58:13376-13381. [PMID: 31532649 PMCID: PMC6988834 DOI: 10.1021/acs.inorgchem.9b02267] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In this work, we present the formation of two open-ended hexagonal-prism tubular macrocycles by the [6 + 12] self-assembly of the symmetric ∼120° organic ligand donor with ∼90° Pt(II) acceptor in a 1:2 ratio. The assembled structures were characterized by multinuclear NMR (1H NMR, 31P{1H} NMR, and 1H-1H COSY NMR), electrospray ionization mass spectrometry (ESI-TOF-MS), traveling wave ion mobility-mass spectrometry (TWIM-MS), and transmission electron microscopy. Molecular modeling was further conducted to get insight into their structured characteristics. We also examined their photophysical properties.
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Affiliation(s)
- Jian-Hong Tang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Photochemistry, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112, United States
| | - Ruidong Ni
- Department of Chemistry, University of South Florida, 4202 East Fowler Avenue, Tampa, Florida 33620, United States
| | - Yan-Qin He
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112, United States
- Institute of BioPharmaceutical Research, Liaocheng University, 1 Hunan Road, Liaocheng, Shandong 252000, China
| | - Ryan T. Vanderlinden
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112, United States
| | - Yanrong Li
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112, United States
| | - Bingbing Shi
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112, United States
| | - Zhong-Yu Li
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112, United States
| | - Heng Wang
- Department of Chemistry, University of South Florida, 4202 East Fowler Avenue, Tampa, Florida 33620, United States
| | - Xiaopeng Li
- Department of Chemistry, University of South Florida, 4202 East Fowler Avenue, Tampa, Florida 33620, United States
| | - Yue Sun
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112, United States
| | - Yu-Wu Zhong
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Photochemistry, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Peter J. Stang
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112, United States
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259
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Huang J, Liu L, Yang Y, Li Y, Wang L, Xiang S, Yao Z, Zhang Z. A metal organic cage with semi-rigid ligand for heterogeneous alcoholysis of epoxides. INORG CHEM COMMUN 2019. [DOI: 10.1016/j.inoche.2019.107540] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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260
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Triphenylene based metal-pyridine cages. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.151202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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261
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Guest Exchange Mechanisms in Mono‐Metallic Pd
II
/Pt
II
‐Cages Based on a Tetra‐Pyridyl Calix[4]pyrrole Ligand. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201909685] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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262
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Escobar L, Escudero‐Adán EC, Ballester P. Guest Exchange Mechanisms in Mono‐Metallic Pd
II
/Pt
II
‐Cages Based on a Tetra‐Pyridyl Calix[4]pyrrole Ligand. Angew Chem Int Ed Engl 2019; 58:16105-16109. [DOI: 10.1002/anie.201909685] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Indexed: 12/14/2022]
Affiliation(s)
- Luis Escobar
- Institute of Chemical Research of Catalonia (ICIQ) The Barcelona Institute of Science and Technology (BIST) Av. Països Catalans 16, 43007 Tarragona Spain
- Universitat Rovira i Virgili Departament de Química Analítica i Química Orgánica c/Marcel⋅lí Domingo, 1 43007 Tarragona Spain
| | - Eduardo C. Escudero‐Adán
- Institute of Chemical Research of Catalonia (ICIQ) The Barcelona Institute of Science and Technology (BIST) Av. Països Catalans 16, 43007 Tarragona Spain
| | - Pablo Ballester
- Institute of Chemical Research of Catalonia (ICIQ) The Barcelona Institute of Science and Technology (BIST) Av. Països Catalans 16, 43007 Tarragona Spain
- ICREA, Passeig Lluís Companys, 23 08010 Barcelona Spain
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263
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Ngai C, Bogie PM, Holloway LR, Dietz PC, Mueller LJ, Hooley RJ. Cofactor-Mediated Nucleophilic Substitution Catalyzed by a Self-Assembled Holoenzyme Mimic. J Org Chem 2019; 84:12000-12008. [PMID: 31449754 DOI: 10.1021/acs.joc.9b01880] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A self-assembled Fe4L6 cage is capable of co-encapsulating multiple carboxylic acid containing guests in its cavity, and these acids can act as cofactors for cage-catalyzed nucleophilic substitutions. The kinetics of the substitution reaction depend on the size, shape, and binding affinity of each of the components, and small structural changes in guest size can have large effects on the reaction. The host is quite promiscuous and is capable of binding multiple guests with micromolar binding affinities while retaining the ability to effect turnover and catalysis. Substrate binding modes vary widely, from simple 1:1 complexes to 1:2 complexes that can show either negative or positive cooperativity, depending on the guest. The molecularity of the dissociative substitution reaction varies, depending on the electrophile leaving group, acid cofactor, and nucleophile size: small changes in the nature of substrate can have large effects on reaction kinetics, all controlled by selective molecular recognition in the cage interior.
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Affiliation(s)
- Courtney Ngai
- Department of Chemistry , University of California-Riverside , Riverside , California 92521 , United States
| | - Paul M Bogie
- 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
| | - Phillip C Dietz
- Department of Chemistry , University of California-Riverside , Riverside , California 92521 , United States
| | - Leonard J Mueller
- 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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264
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Yoshizawa M, Catti L. Bent Anthracene Dimers as Versatile Building Blocks for Supramolecular Capsules. Acc Chem Res 2019; 52:2392-2404. [PMID: 31347840 DOI: 10.1021/acs.accounts.9b00301] [Citation(s) in RCA: 145] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
This Account provides a comprehensive summary of our 1-decade-long investigations into bent anthracene dimers as versatile building blocks for supramolecular capsules. The investigations initiated in 2008 with the design of an anthracene dimer with a meta-phenylene spacer bearing two substituents on the convex side. Using the bent polyaromatic building block, we began to develop novel supramolecular capsules from two different synthetic approaches. One is a coordination approach, which was pursued by converting the building block into a bent ligand with two pyridine units at the terminal positions. The ligands quantitatively assemble into an M2L4-type capsule through coordination bonding with metal ions. The other is a π-stacking approach, which was followed by utilizing the block as a bent amphiphilic molecule with two trimethylammonium groups at the spacer. In water, the amphiphiles spontaneously assemble into a micelle-type capsule through the hydrophobic effect and π-stacking interactions. Simple modification of the building block allowed us to prepare a wide variety of coordination capsules as well as π-stacking capsules, bearing different hydrophilic side-chains, terminal substitutions, connecting units, polyaromatic panels, or spacer units. The coordination capsule possesses a rigid cavity, with a diameter of ∼1 nm, surrounded by multiple anthracene panels. The spherical polyaromatic cavity binds various synthetic molecules (e.g., paracyclophanes, corannulene, BODIPY, and fullerene C60) in aqueous solutions. With the aid of the polyaromatic shell, photochemically and thermally reactive radical initiators and oligosulfurs are greatly stabilized in the cavity. Biomolecules such as hydrophilic sucrose and oligo(lactic acid)s as well as hydrophobic androgenic hormones are bound by the capsule with high selectivity. In addition, long amphiphilic poly(ethylene oxide)s are threaded into the closed shell of the capsule(s) to generate unusual pseudorotaxane-shaped host-guest complexes in water. In contrast, the π-stacking capsule furnishes a flexible cavity, adaptable to the size and shape of guest molecules, encircled by multiple anthracene panels. In water, the capsule binds hydrophobic fluorescent dyes (e.g., Nile red and DCM) in the cavity. Simple grinding of the bent amphiphile with highly hydrophobic nanocarbons such as fullerenes, nanographenes, and carbon nanotubes (followed by sonication) as well as metal-complexes such as Cu(II)-phthalocyanines and Mn(III)-tetraphenylporphyrins leads to the efficient formation of water-soluble host-guest complexes upon encapsulation. Red emission from otherwise water-deactivated Eu(III)-complexes is largely enhanced in water through encapsulation. Moreover, the incorporation of pH- and photoswitches into the amphiphile affords stimuli-responsive π-stacking capsules, capable of releasing bound guests by the addition of acid and light irradiation, respectively, in water. The host functions of the coordination and π-stacking capsules are complementary to each other, which enables selection of the capsule-type depending on the envisioned target. We are convinced that continued investigation of the present supramolecular capsules featuring the bent anthracene dimer and its derivatives will further increase their value as advanced molecular tools for synthetic, analytical, material, biological, and/or medical applications.
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Affiliation(s)
- Michito Yoshizawa
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Lorenzo Catti
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
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265
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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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266
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Rizzuto FJ, Carpenter JP, Nitschke JR. Multisite Binding of Drugs and Natural Products in an Entropically Favorable, Heteroleptic Receptor. J Am Chem Soc 2019; 141:9087-9095. [PMID: 31079455 DOI: 10.1021/jacs.9b03776] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The cavities of artificial receptors are defined by how their components fit together. The encapsulation of specific molecules can thus be engineered by considering geometric principles; however, intermolecular interactions and steric fit scale with receptor size, such that the ability to bind multiple guests from a specific class of compounds remains a current challenge. By employing metal-organic self-assembly, we have prepared a triangular prism from two different ligands that is capable of binding more than 20 different natural products, drugs, and steroid derivatives within its prolate cavity. Encapsulation inflates the host, enhancing its ability to bind other guests in peripheral pockets and thus enabling our system to bind combinations of different drug and natural product cargoes in different locations simultaneously. This new mode of entropically favorable self-assembly thus enables central encapsulation to amplify guest-binding events around the periphery of an artificial receptor.
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Affiliation(s)
- Felix J Rizzuto
- Department of Chemistry , University of Cambridge , Cambridge CB2 1EW , United Kingdom
| | - John P Carpenter
- Department of Chemistry , University of Cambridge , Cambridge CB2 1EW , United Kingdom
| | - Jonathan R Nitschke
- Department of Chemistry , University of Cambridge , Cambridge CB2 1EW , United Kingdom
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267
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268
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Li F, Lindoy LF. Metalloligand Strategies for Assembling Heteronuclear Nanocages – Recent Developments. Aust J Chem 2019. [DOI: 10.1071/ch19279] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The use of metalloligands as building blocks for the assembly of metallo-organic cages has received increasing attention over the past two decades or so. In part, the popularity of this approach reflects its stepwise nature that lends itself to the predesigned construction of metallocages and especially heteronuclear metallocages. The focus of the present discussion is on the use of metalloligands for the construction of discrete polyhedral cages, very often incorporating heterometal ions as structural elements. The metalloligand approach uses metal-bound multifunctional ligand building blocks that display predesigned structural properties for coordination to a second metal ion such that the rational design and construction of both homo- and heteronuclear metal–organic cages are facilitated. The present review covers published literature in the area from early 2015 to early 2019.
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269
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Martínez-Agramunt V, Peris E. A palladium-hinged organometallic square with a perfect-sized cavity for the encapsulation of three heteroguests. Chem Commun (Camb) 2019; 55:14972-14975. [DOI: 10.1039/c9cc08595e] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A nanometer-sized tetrapalladium metallosquare with a pyrene-bisimidazolylidene ligand was found to display a perfect-sized cavity for the encapsulation of three heteroguests, enabling the formation of quintuple D–A–D–A–D stacks.
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Affiliation(s)
| | - Eduardo Peris
- Institute of Advanced Materials (INAM)
- Universitat Jaume I
- 12071-Castellón
- Spain
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