1
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Pacini A, Nitti A, Vitale M, Pasini D. Polylactic-Containing Hyperbranched Polymers through the CuAAC Polymerization of Aromatic AB 2 Monomers. Int J Mol Sci 2023; 24:ijms24087620. [PMID: 37108783 PMCID: PMC10145021 DOI: 10.3390/ijms24087620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 04/16/2023] [Accepted: 04/18/2023] [Indexed: 04/29/2023] Open
Abstract
We report on the synthesis and characterization of a novel class of hyperbranched polymers, in which a copper(I)-catalyzed alkyne azide cycloaddition (CuAAC) reaction (the prototypical "click" reaction) is used as the polymerization step. The AB2 monomers bear two azide functionalities and one alkyne functionality, which have been installed onto a 1,3,5 trisubstituted benzene aromatic skeleton. This synthesis has been optimized in terms of its purification strategies, with an eye on its scalability for the potential industrial applications of hyperbranched polymers as viscosity modifiers. By taking advantage of the modularity of the synthesis, we have been able to install short polylactic acid fragments as the spacing units between the complementary reactive azide and alkyne functionalities, aiming to introduce elements of biodegradability into the final products. The hyperbranched polymers have been obtained with good molecular weights and degrees of polymerization and branching, testifying to the effectiveness of the synthetic design. Simple experiments on glass surfaces have highlighted the possibility of conducting the polymerizations and the formation of the hyperbranched polymers directly in thin films at room temperature.
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Affiliation(s)
- Aurora Pacini
- Department of Chemistry, INSTM Research Unit, University of Pavia, Viale Taramelli 10, 27100 Pavia, Italy
| | - Andrea Nitti
- Department of Chemistry, INSTM Research Unit, University of Pavia, Viale Taramelli 10, 27100 Pavia, Italy
| | - Marcello Vitale
- IVM Chemicals s.r.l., Viale della Stazione 3, 27020 Parona, Italy
| | - Dario Pasini
- Department of Chemistry, INSTM Research Unit, University of Pavia, Viale Taramelli 10, 27100 Pavia, Italy
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2
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Catenazzi M, Nitti A, Boiocchi M, Bianchi G, Po R, Pasini D. Supramolecular Weaving by Halogen-Bonding in Functionality-Rich Hexasubstituted Aromatic Synthons. MATERIALS (BASEL, SWITZERLAND) 2023; 16:1678. [PMID: 36837309 PMCID: PMC9967865 DOI: 10.3390/ma16041678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 02/08/2023] [Accepted: 02/15/2023] [Indexed: 06/18/2023]
Abstract
Hexasubstituted benzenes are interesting platforms for the generation of functional materials, whose applications span from supramolecular recognition to organic electronics. Their synthesis is difficult to achieve by controlling multiple substitution steps of all hydrogen atoms on the aromatic benzene skeleton, so, often, cycloaddition reactions from disubsituted alkynes are used. In this work, we report a novel, straightforward route to C3-symmetrical hexasubstituted aromatic synthons with a diverse and rich pattern of functionalities, and we report about their packing mode in the crystals, in which, unprecedentedly, directional, strong halogen bonding interactions are capable of forming bidimensional supramolecular weaving.
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Affiliation(s)
- Matteo Catenazzi
- Department of Chemistry and INSTM Research Unit, University of Pavia, Via Taramelli 12, 27100 Pavia, Italy
| | - Andrea Nitti
- Department of Chemistry and INSTM Research Unit, University of Pavia, Via Taramelli 12, 27100 Pavia, Italy
| | - Massimo Boiocchi
- Centro Grandi Strumenti, University of Pavia, Via Bassi 21, 27100 Pavia, Italy
| | - Gabriele Bianchi
- New Energies, Renewable Energies and Material Science Research Center, Eni SpA, Via Fauser 4, 28100 Novara, Italy
| | - Riccardo Po
- New Energies, Renewable Energies and Material Science Research Center, Eni SpA, Via Fauser 4, 28100 Novara, Italy
| | - Dario Pasini
- Department of Chemistry and INSTM Research Unit, University of Pavia, Via Taramelli 12, 27100 Pavia, Italy
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3
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Rothschild DA, Kopcha WP, Tran A, Zhang J, Lipke MC. Gram-scale synthesis of a covalent nanocage that preserves the redox properties of encapsulated fullerenes. Chem Sci 2022; 13:5325-5332. [PMID: 35655559 PMCID: PMC9093146 DOI: 10.1039/d2sc00445c] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 04/04/2022] [Indexed: 11/21/2022] Open
Abstract
Discrete nanocages provide a way to solubilize, separate, and tune the properties of fullerenes, but these 3D receptors cannot usually be synthesized easily from inexpensive starting materials, limiting their utility. Herein, we describe the first fullerene-binding nanocage (Cage4+) that can be made efficiently on a gram scale. Cage4+ was prepared in up to 57% yield by the formation of pyridinium linkages between complemantary porphyrin components that are themselves readily accessible. Cage4+ binds C60 and C70 with large association constants (>108 M−1), thereby solubilizing these fullerenes in polar solvents. Fullerene association and redox-properties were subsequently investigated across multiple charge states of the host-guest complexes. Remarkably, neutral and singly reduced fullerenes bind with similar strengths, leaving their 0/1− redox couples minimally perturbed and fully reversible, whereas other hosts substantially alter the redox properties of fullerenes. Thus, C60@Cage4+ and C70@Cage4+ may be useful as solubilized fullerene derivatives that preserve the inherent electron-accepting and electron-transfer capabilities of the fullerenes. Fulleride dianions were also found to bind strongly in Cage4+, while further reduction is centered on the host, leading to lowered association of the fulleride guest in the case of C602−. This report describes the first gram-scale synthesis of a nanocage that can host fullerenes (C60 and C70). The redox properties of the fullerenes are preserved in this host, enabling characterization of complexes with fulleride anions and dianions.![]()
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Affiliation(s)
- Daniel A Rothschild
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey 123 Bevier Rd Piscataway NJ 08854 USA
| | - William P Kopcha
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey 123 Bevier Rd Piscataway NJ 08854 USA
| | - Aaron Tran
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey 123 Bevier Rd Piscataway NJ 08854 USA
| | - Jianyuan Zhang
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey 123 Bevier Rd Piscataway NJ 08854 USA
| | - Mark C Lipke
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey 123 Bevier Rd Piscataway NJ 08854 USA
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4
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Song L, Zhou L, Li B, Zhang H. Fullerene-containing pillar[ n]arene hybrid composites. Org Biomol Chem 2022; 20:8176-8186. [DOI: 10.1039/d2ob01664h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The construction and application of fullerene-containing pillar[n]arene organic–inorganic hybrid composites/systems has been discussed and summarized.
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Affiliation(s)
- Leqian Song
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Le Zhou
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Bing Li
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Huacheng Zhang
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
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5
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Benedini S, Zheng Y, Nitti A, Mazza MMA, Dondi D, Raymo FM, Pasini D. Large polarization of push–pull “Cruciforms” via coordination with lanthanide ions. NEW J CHEM 2022. [DOI: 10.1039/d1nj04358g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
“Bent” or “cruciform” shaped conjugated push–pull compounds exhibit striking differences in their supramolecular recognition of lanthanide cations, with in an outstanding supramolecular polarization.
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Affiliation(s)
- Sara Benedini
- Department of Chemistry and INSTM Research Unit, University of Pavia, Via Taramelli 10 – 27100 Pavia, Italy
| | - Yeting Zheng
- Laboratory for Molecular Photonics, Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, Florida 33146-0431, USA
| | - Andrea Nitti
- Department of Chemistry and INSTM Research Unit, University of Pavia, Via Taramelli 10 – 27100 Pavia, Italy
| | - Mercedes M. A. Mazza
- Laboratory for Molecular Photonics, Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, Florida 33146-0431, USA
| | - Daniele Dondi
- Department of Chemistry and INSTM Research Unit, University of Pavia, Via Taramelli 10 – 27100 Pavia, Italy
| | - Françisco M. Raymo
- Laboratory for Molecular Photonics, Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, Florida 33146-0431, USA
| | - Dario Pasini
- Department of Chemistry and INSTM Research Unit, University of Pavia, Via Taramelli 10 – 27100 Pavia, Italy
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6
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Agnes M, Arabi A, Caricato M, Nitti A, Dondi D, Yannakopoulou K, Patrini M, Pasini D. Helical Nanofibers Formed by Palladium-Mediated Assembly of Organic Homochiral Macrocycles Containing Binaphthyl and Pyridyl Units. Chempluschem 2021; 86:270-274. [PMID: 33565730 DOI: 10.1002/cplu.202100039] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 02/04/2021] [Indexed: 11/05/2022]
Abstract
Herein, we report the synthesis and characterization of homochiral macrocycles, in which molecular rigidity, combined with the presence of multiple functional groups, allow for the assembly of helical nanostructures. 1,1'-bi-2-naphthol (Binol) units are used as robust chirality inducers, and pyridyl units embedded within the molecular frameworks allow the assembly, upon coordination with Pd(II) metal ions, of the macrocyclic building blocks. CD and NMR spectroscopies show the formation of ordered 1D assembly in solution. AFM studies indicate that the molecular systems are capable of forming nanoscale structures. The effective transfer of chiral information results in helical nanofibers, with lengths ranging from a few hundreds of nanometers to some micrometers. AFM line profiles reveal a helical longitudinal period of about 50 nm and a transverse width of 25 to 45 nm after deconvolution.
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Affiliation(s)
- Marco Agnes
- Department of Chemistry and INSTM Research Unit, University of Pavia, Via Taramelli 12, 27100, Pavia, Italy.,Institute of Nanoscience and Nanotechnology, National Center for Scientific Research "Demokritos", Patr. Grigoriou E' & 27 Neapoleos str., 15341, Agia Paraskevi, Greece
| | - Ameneh Arabi
- Department of Chemistry and INSTM Research Unit, University of Pavia, Via Taramelli 12, 27100, Pavia, Italy
| | - Marco Caricato
- Department of Chemistry and INSTM Research Unit, University of Pavia, Via Taramelli 12, 27100, Pavia, Italy
| | - Andrea Nitti
- Department of Chemistry and INSTM Research Unit, University of Pavia, Via Taramelli 12, 27100, Pavia, Italy
| | - Daniele Dondi
- Department of Chemistry and INSTM Research Unit, University of Pavia, Via Taramelli 12, 27100, Pavia, Italy
| | - Konstantina Yannakopoulou
- Institute of Nanoscience and Nanotechnology, National Center for Scientific Research "Demokritos", Patr. Grigoriou E' & 27 Neapoleos str., 15341, Agia Paraskevi, Greece
| | - Maddalena Patrini
- Department of Physics, University of Pavia, Via Bassi 6, 27100, Pavia, Italy
| | - Dario Pasini
- Department of Chemistry and INSTM Research Unit, University of Pavia, Via Taramelli 12, 27100, Pavia, Italy
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7
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Nitti A, Pasini D. Aggregation-Induced Circularly Polarized Luminescence: Chiral Organic Materials for Emerging Optical Technologies. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1908021. [PMID: 32173906 DOI: 10.1002/adma.201908021] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Revised: 02/05/2020] [Indexed: 05/27/2023]
Abstract
Chirality is becoming increasingly important in the design of organic materials with functional properties, when bulk anisotropy is needed. In the past decades, a plethora of chiral organic materials have been studied and developed. Nanostructures have brought substantial advancement to the realization of organic-molecule-based devices, and the possibilities for solid-state light emission are very promising in view of potential applications. Scientific approaches to the realization of chiral emissive materials are indeed growing exponentially. The chiral nanostructures discussed are related both to the way in which luminescence is generated and the way in which it is detected. As to the former, the focus will be on organic chromophores with aggregation-induced emission properties, so that emission is present, or at least largely amplified, when the molecules are in the aggregated state. As to the latter, the focus will be on the ability and a quantitative comparison of organic nanostructures capable of circularly polarized emission.
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Affiliation(s)
- Andrea Nitti
- Department of Chemistry and INSTM Research Unit, University of Pavia, Via Taramelli 12, Pavia, 27100, Italy
| | - Dario Pasini
- Department of Chemistry and INSTM Research Unit, University of Pavia, Via Taramelli 12, Pavia, 27100, Italy
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8
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Binaphthyl-Based Macrocycles as Optical Sensors for Aromatic Diphenols. Molecules 2020; 25:molecules25030514. [PMID: 31991660 PMCID: PMC7038072 DOI: 10.3390/molecules25030514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Revised: 01/19/2020] [Accepted: 01/20/2020] [Indexed: 11/16/2022] Open
Abstract
The synthesis of several rigid, homochiral organic macrocycles possessing, respectively, average molecular D2 and D3 symmetries, is described. They have been obtained from aromatic dicarboxylic acids, in combination with an axially-chiral, suitable dibenzylic alcohol, derived from 1,1'-binaphthyl-2,2'-diol (BINOL) using one-pot esterification reactions in good isolated yields. NMR and circular dichroism (CD) spectroscopies detect the structural and shape variability in the scaffolds, reflected both in terms of the changes in chemical shifts and the shape of selected proton resonances, and in terms of the variation of the CD signature related to the dihedral angle defined by the binaphthyl units embedded in the rigid cyclic skeleton. The D2 cyclic adducts are able to form stable complexes with aromatic diphenols, with binding strengths that are dependent on small variations in the spacing units, and therefore on the shapes of the internal cavities of the cyclic structures.
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9
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Kohlhaas M, Zähres M, Mayer C, Engeser M, Merten C, Niemeyer J. Chiral hydrogen-bonded supramolecular capsules: synthesis, characterization and complexation of C70. Chem Commun (Camb) 2019; 55:3298-3301. [DOI: 10.1039/c8cc10152c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Hydrogen-bonded nanocapsules were generated by multi-component self-assembly of phosphoric acids and amidines and could be used as hosts for C70.
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Affiliation(s)
- Martha Kohlhaas
- Institute of Organic Chemistry and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen
- 45141 Essen
- Germany
| | - Manfred Zähres
- Department of Physical Chemistry and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen
- 45141 Essen
- Germany
| | - Christian Mayer
- Department of Physical Chemistry and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen
- 45141 Essen
- Germany
| | - Marianne Engeser
- Kekulé-Institute for Organic Chemistry and Biochemistry, University of Bonn
- 53121 Bonn
- Germany
| | - Christian Merten
- Ruhr-Universität Bochum, Organische Chemie II
- 44801 Bochum
- Germany
| | - Jochen Niemeyer
- Institute of Organic Chemistry and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen
- 45141 Essen
- Germany
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10
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Sun W, Wang Y, Ma L, Zheng L, Fang W, Chen X, Jiang H. Self-Assembled Carcerand-like Cage with a Thermoregulated Selective Binding Preference for Purification of High-Purity C60 and C70. J Org Chem 2018; 83:14667-14675. [DOI: 10.1021/acs.joc.8b02674] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Weidong Sun
- Key Laboratory of Theoretical and Computational Photochemistry and Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Ying Wang
- Key Laboratory of Theoretical and Computational Photochemistry and Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Lishuang Ma
- Key Laboratory of Theoretical and Computational Photochemistry and Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Lu Zheng
- Key Laboratory of Theoretical and Computational Photochemistry and Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Weihai Fang
- Key Laboratory of Theoretical and Computational Photochemistry and Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Xuebo Chen
- Key Laboratory of Theoretical and Computational Photochemistry and Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Hua Jiang
- Key Laboratory of Theoretical and Computational Photochemistry and Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
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11
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Nitti A, Pacini A, Pasini D. Chiral Nanotubes. NANOMATERIALS (BASEL, SWITZERLAND) 2017; 7:E167. [PMID: 28677640 PMCID: PMC5535233 DOI: 10.3390/nano7070167] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 06/22/2017] [Accepted: 06/28/2017] [Indexed: 01/01/2023]
Abstract
Organic nanotubes, as assembled nanospaces, in which to carry out host-guest chemistry, reversible binding of smaller species for transport, sensing, storage or chemical transformation purposes, are currently attracting substantial interest, both as biological ion channel mimics, or for addressing tailored material properties. Nature's materials and machinery are universally asymmetric, and, for chemical entities, controlled asymmetry comes from chirality. Together with carbon nanotubes, conformationally stable molecular building blocks and macrocycles have been used for the realization of organic nanotubes, by means of their assembly in the third dimension. In both cases, chiral properties have started to be fully exploited to date. In this paper, we review recent exciting developments in the synthesis and assembly of chiral nanotubes, and of their functional properties. This review will include examples of either molecule-based or macrocycle-based systems, and will try and rationalize the supramolecular interactions at play for the three-dimensional (3D) assembly of the nanoscale architectures.
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Affiliation(s)
- Andrea Nitti
- Department of Chemistry, University of Pavia, Viale Taramelli, 12-27100 Pavia, Italy.
| | - Aurora Pacini
- Department of Chemistry, University of Pavia, Viale Taramelli, 12-27100 Pavia, Italy.
- INSTM Research Unit, University of Pavia, Viale Taramelli, 12-27100 Pavia, Italy.
| | - Dario Pasini
- Department of Chemistry, University of Pavia, Viale Taramelli, 12-27100 Pavia, Italy.
- INSTM Research Unit, University of Pavia, Viale Taramelli, 12-27100 Pavia, Italy.
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12
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Pasini D, Nitti A. Recent Advances in Sensing Using Atropoisomeric Molecular Receptors. Chirality 2015; 28:116-23. [DOI: 10.1002/chir.22556] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Revised: 10/28/2015] [Accepted: 10/29/2015] [Indexed: 02/06/2023]
Affiliation(s)
- Dario Pasini
- Department of Chemistry; University of Pavia; Pavia Italy
- INSTM Research Unit, Department of Chemistry; University of Pavia; Pavia Italy
| | - Andrea Nitti
- Department of Chemistry; University of Pavia; Pavia Italy
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13
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Caricato M, Delforge A, Bonifazi D, Dondi D, Mazzanti A, Pasini D. Chiral nanostructuring of multivalent macrocycles in solution and on surfaces. Org Biomol Chem 2015; 13:3593-601. [PMID: 25621466 DOI: 10.1039/c4ob02643h] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We describe the design and synthesis of a novel functionality-rich, homochiral macrocycle, possessing the overall molecular D2 symmetry, in which multivalency is introduced into the covalent framework by means of four suitably positioned pyridine moieties. The macrocycle synthesis is carried out with functionalized, enantiopure 1,1'-binaphthyl synthons as the source of chirality by means of a room temperature esterification reaction as the cyclization procedure. Upon addition of Pd(2+), coordination of the pyridine moieties occurs both intra and intermolecularly, to afford chiral ordered mono and dimeric macrocycles or multimeric aggregates depending on the solvents and conditions used. The metal binding event takes place in combination with a significant macrocyclic conformational rearrangement detected by circular dichroism spectroscopy. When in combination with a third component (C60), the macrocycle-Pd(2+) hybrid undergoes surface-confined nanostructuring into chiral nanofibres.
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Affiliation(s)
- Marco Caricato
- Department of Chemistry, University of Pavia, Viale Taramelli, 10, 27100, Pavia, Italy.
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14
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Deng CL, Xiong XD, Chik DTW, Cai Z, Peng XS, Wong HNC. 6,7-Bismethoxy-2,11-dihydroxytetraphenylene Derived Macrocycles: Synthesis, Structures, and Complexation with Fullerenes. Chem Asian J 2015. [DOI: 10.1002/asia.201500689] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Chun-Lin Deng
- Department of Chemistry, State Key Laboratory of Synthetic Chemistry, Center of Novel Functional Molecules, and Institute of Molecular Functional Materials; The Chinese University of Hong Kong, Shatin; New Territories Hong Kong SAR China
| | - Xiao-Dong Xiong
- Department of Chemistry, State Key Laboratory of Synthetic Chemistry, Center of Novel Functional Molecules, and Institute of Molecular Functional Materials; The Chinese University of Hong Kong, Shatin; New Territories Hong Kong SAR China
| | - David T. W. Chik
- Department of Chemistry; Hong Kong Baptist University, Kowloon Tong, Kowloon; Hong Kong SAR China
| | - Zongwei Cai
- Department of Chemistry; Hong Kong Baptist University, Kowloon Tong, Kowloon; Hong Kong SAR China
| | - Xiao-Shui Peng
- Department of Chemistry, State Key Laboratory of Synthetic Chemistry, Center of Novel Functional Molecules, and Institute of Molecular Functional Materials; The Chinese University of Hong Kong, Shatin; New Territories Hong Kong SAR China
- Shenzhen Center of Novel Functional Molecules & Shenzhen Municipal Key Laboratory of Chemical Synthesis of Medicinal Organic Molecules; Shenzhen Research Institute; The Chinese University of Hong Kong; No.10, Second Yuexing Road Shenzhen 518507 China
| | - Henry N. C. Wong
- Department of Chemistry, State Key Laboratory of Synthetic Chemistry, Center of Novel Functional Molecules, and Institute of Molecular Functional Materials; The Chinese University of Hong Kong, Shatin; New Territories Hong Kong SAR China
- Shenzhen Center of Novel Functional Molecules & Shenzhen Municipal Key Laboratory of Chemical Synthesis of Medicinal Organic Molecules; Shenzhen Research Institute; The Chinese University of Hong Kong; No.10, Second Yuexing Road Shenzhen 518507 China
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15
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Synthesis of Binaphthyl-Based Push-Pull Chromophores with Supramolecularly Polarizable Acceptor Ends. J CHEM-NY 2015. [DOI: 10.1155/2015/827592] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
We report on the design and synthesis of new enantiopure binaphthyl derivatives in which electron-donating and electron-withdrawing substituents are placed in direct conjugation, to create push-pull dyes potentially active for NLO applications. The dyes, unprecedentedly, extend theirπ-bridge from the 3,3′ positions of the binaphthyl units and incorporate as acceptors 1,3-dicarbonyl and tetrafluorobenzene units, useful for further supramolecular polarization of the chiral dyes.
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16
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Coluccini C, Caricato M, Cariati E, Righetto S, Forni A, Pasini D. Synthesis, chiroptical and SHG properties of polarizable push–pull dyes built on π-extended binaphthyls. RSC Adv 2015. [DOI: 10.1039/c4ra16876c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Novel binaphthyl push–pull dyes extend their π-bridge and incorporate as acceptors pyridine units, useful for further supramolecular polarization.
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Affiliation(s)
| | - Marco Caricato
- Department of Chemistry
- University of Pavia
- 27100 Pavia
- Italy
| | - Elena Cariati
- Dipartimento di Chimica dell'Università degli Studi di Milano
- UdR dell'INSTM
- 20133 Milano
- Italy
- Istituto di Scienze e Tecnologie Molecolari – Consiglio Nazionale delle Ricerche (ISTM-CNR)
| | - Stefania Righetto
- Dipartimento di Chimica dell'Università degli Studi di Milano
- UdR dell'INSTM
- 20133 Milano
- Italy
| | - Alessandra Forni
- Istituto di Scienze e Tecnologie Molecolari – Consiglio Nazionale delle Ricerche (ISTM-CNR)
- Università degli Studi di Milano
- UdR dell'INSTM
- 20133 Milano
- Italy
| | - Dario Pasini
- Department of Chemistry
- University of Pavia
- 27100 Pavia
- Italy
- INSTM Research Unit
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17
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Tzirakis MD, Alberti MN, Weissman H, Rybtchinski B, Diederich F. Enantiopure Laterally Functionalized Alleno-Acetylenic Macrocycles: Synthesis, Chiroptical Properties, and Self-Assembly in Aqueous Media. Chemistry 2014; 20:16070-3. [DOI: 10.1002/chem.201404941] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2014] [Indexed: 12/27/2022]
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18
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Sannicolò F, Mussini PR, Benincori T, Cirilli R, Abbate S, Arnaboldi S, Casolo S, Castiglioni E, Longhi G, Martinazzo R, Panigati M, Pappini M, Quartapelle Procopio E, Rizzo S. Inherently chiral macrocyclic oligothiophenes: easily accessible electrosensitive cavities with outstanding enantioselection performances. Chemistry 2014; 20:15298-302. [PMID: 25263106 PMCID: PMC4271670 DOI: 10.1002/chem.201404331] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Indexed: 11/18/2022]
Abstract
Linear conjugated oligothiophenes of variable length and different substitution pattern are ubiquitous in technologically advanced optoelectronic devices, though limitations in application derive from insolubility, scarce processability and chain-end effects. This study describes an easy access to chiral cyclic oligothiophenes constituted by 12 and 18 fully conjugated thiophene units. Chemical oxidation of an “inherently chiral” sexithiophene monomer, synthesized in two steps from commercially available materials, induces the formation of an elliptical dimer and a triangular trimer endowed with electrosensitive cavities of different tunable sizes. Combination of chirality with electroactivity makes these molecules unique in the current oligothiophenes literature. These macrocycles, which are stable and soluble in most organic solvents, show outstanding chiroptical properties, high circularly polarized luminescence effects and an exceptional enantiorecognition ability.
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Affiliation(s)
- Francesco Sannicolò
- Dipartimento di Chimica and C.I.Ma.I.Na, Università degli Studi di Milano, via Golgi 19, 20133 Milano (Italy).
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19
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Caricato M, Sharma AK, Coluccini C, Pasini D. Nanostructuring with chirality: binaphthyl-based synthons for the production of functional oriented nanomaterials. NANOSCALE 2014; 6:7165-7174. [PMID: 24848159 DOI: 10.1039/c4nr00801d] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Chirality is a powerful tool for the generation of order, directionality, and, as such, of function, in assembled nanoscale chemical devices. Axially chiral binaphthyls have been widely used in organic synthesis; the stability of the enantiomers enables their use as robust chirality inducers and catalysts in asymmetric reactions, and they are nowadays industrially applied in a variety of organic transformations. Applications of these compounds in the field of nanosciences are more recent, and not yet fully explored. The integration of such a robust class of chiral compounds, capable of efficient transfer of stereochemical information, into functional aggregates and nanoarchitectures is of great current interest. We will discuss preeminent examples of applications of these synthons in several fields of nanoscience, such as reticular chemistry, non-linear optical materials and imaging, and liquid crystals.
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Affiliation(s)
- Marco Caricato
- Department of Chemistry, University of Pavia, Viale Taramelli 10, 27100 Pavia, Italy.
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20
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Caricato M, González SD, Arandia Ariño I, Pasini D. Homochiral BINOL-based macrocycles with π-electron-rich, electron-withdrawing or extended spacing units as receptors for C60. Beilstein J Org Chem 2014; 10:1308-16. [PMID: 24991283 PMCID: PMC4077419 DOI: 10.3762/bjoc.10.132] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Accepted: 05/15/2014] [Indexed: 02/05/2023] Open
Abstract
The “one-pot” synthesis of several homochiral macrocycles has been achieved by using π-electron-rich, electron-deficient or extended aromatic dicarboxylic acids in combination with an axially-chiral dibenzylic alcohol, derived from enantiomerically-pure BINOL. Two series of cyclic adducts with average molecular D2 and D3 molecular symmetries, respectively, have been isolated in pure forms. Their yields and selectivities deviate substantially from statistical distributions. NMR and CD spectroscopic methods are efficient and functional in order to highlight the variability of shapes of the covalent macrocyclic frameworks. The larger D3 cyclic adducts exhibit recognition properties towards C60 in toluene solutions (up to log Ka = 3.2) with variable stoichiometries and variable intensities of the charge-tranfer band upon complexation.
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Affiliation(s)
- Marco Caricato
- Department of Chemistry, University of Pavia, Viale Taramelli 10, 27100 Pavia, Italy
| | - Silvia Díez González
- Department of Chemistry, University of Pavia, Viale Taramelli 10, 27100 Pavia, Italy
| | - Idoia Arandia Ariño
- Department of Chemistry, University of Pavia, Viale Taramelli 10, 27100 Pavia, Italy
| | - Dario Pasini
- Department of Chemistry, University of Pavia, Viale Taramelli 10, 27100 Pavia, Italy ; INSTM Research Unit, Department of Chemistry, University of Pavia, 27100 Pavia, Italy
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21
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Crespo Alonso M, Arca M, Isaia F, Lai R, Lippolis V, Callear SK, Caricato M, Pasini D, Coles SJ, Aragoni MC. Stereospecific generation of homochiral helices in coordination polymers built from enantiopure binaphthyl-based ligands. CrystEngComm 2014. [DOI: 10.1039/c4ce01101e] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The novel enantiopure spacer 2,2′-dimethoxy-1,1′-binaphthyl-3,3′-bis(4-pyridyl-amido) has been designed to prepare helical coordination polymers here investigated by means of experimental and theoretical data.
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Affiliation(s)
- M. Crespo Alonso
- Dipartimento di Scienze Chimiche e Geologiche
- Università degli Studi di Cagliari
- Cittadella Universitaria
- 09042 Monserrato Cagliari, Italy
| | - M. Arca
- Dipartimento di Scienze Chimiche e Geologiche
- Università degli Studi di Cagliari
- Cittadella Universitaria
- 09042 Monserrato Cagliari, Italy
| | - F. Isaia
- Dipartimento di Scienze Chimiche e Geologiche
- Università degli Studi di Cagliari
- Cittadella Universitaria
- 09042 Monserrato Cagliari, Italy
| | - R. Lai
- Dipartimento di Scienze Chimiche e Geologiche
- Università degli Studi di Cagliari
- Cittadella Universitaria
- 09042 Monserrato Cagliari, Italy
| | - V. Lippolis
- Dipartimento di Scienze Chimiche e Geologiche
- Università degli Studi di Cagliari
- Cittadella Universitaria
- 09042 Monserrato Cagliari, Italy
| | - S. K. Callear
- ISIS Facility
- Rutherford Appleton Laboratory
- Didcot, UK
| | - M. Caricato
- Department of Chemistry and INSTM Research Unit
- University of Pavia
- 27100 Pavia, Italy
| | - D. Pasini
- Department of Chemistry and INSTM Research Unit
- University of Pavia
- 27100 Pavia, Italy
| | - S. J. Coles
- UK National Crystallography Service
- Chemistry
- Faculty of Natural and Environmental Sciences
- University of Southampton
- Southampton, UK
| | - M. C. Aragoni
- Dipartimento di Scienze Chimiche e Geologiche
- Università degli Studi di Cagliari
- Cittadella Universitaria
- 09042 Monserrato Cagliari, Italy
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22
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Agnes M, Sorrenti A, Pasini D, Wurst K, Amabilino DB. Crystal structure analyses facilitate understanding of synthesis protocols in the preparation of 6,6′-dibromo-substituted BINOL compounds. CrystEngComm 2014. [DOI: 10.1039/c4ce01160k] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
A combination of crystallographic and spectroscopic techniques has been used in order to address thorough purification protocols for a series of atropisomeric 1,1′-binaphthalene-2,2′-diol (BINOL) derivatives to be used as building blocks for chiral nanoscale constructs.
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Affiliation(s)
- Marco Agnes
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC)
- Campus Universitari de Bellaterra
- 08193 Cerdanyola del Vallès, Spain
- Department of Chemistry and INSTM Research Unit
- University of Pavia
| | - Alessandro Sorrenti
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC)
- Campus Universitari de Bellaterra
- 08193 Cerdanyola del Vallès, Spain
| | - Dario Pasini
- Department of Chemistry and INSTM Research Unit
- University of Pavia
- Pavia, Italy
| | - Klaus Wurst
- Institut für Anorganische Chemie
- A-6020 Innsbruck, Austria
| | - David B. Amabilino
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC)
- Campus Universitari de Bellaterra
- 08193 Cerdanyola del Vallès, Spain
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23
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Pasini D. The click reaction as an efficient tool for the construction of macrocyclic structures. Molecules 2013; 18:9512-30. [PMID: 23966075 PMCID: PMC6270095 DOI: 10.3390/molecules18089512] [Citation(s) in RCA: 91] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2013] [Revised: 08/01/2013] [Accepted: 08/02/2013] [Indexed: 12/24/2022] Open
Abstract
The Cu(I)-catalyzed azide-alkyne cycloaddition (CuAAC, known as the click reaction) is an established tool used for the construction of complex molecular architectures. Given its efficiency it has been widely applied for bioconjugation, polymer and dendrimer synthesis. More recently, this reaction has been utilized for the efficient formation of rigid or shape-persistent, preorganized macrocyclic species. This strategy also allows the installment of useful functionalities, in the form of polar and function-rich 1,2,3-triazole moieties, directly embedded in the macrocyclic structures. This review analyzes the state of the art in this context, and provides some elements of perspective for future applications.
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Affiliation(s)
- Dario Pasini
- Department of Chemistry, University of Pavia, Viale Taramelli, 10-27100 Pavia, Italy.
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24
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Caricato M, Leza NJ, Roy K, Dondi D, Gattuso G, Shimizu LS, Vander Griend DA, Pasini D. A Chiroptical Probe for Sensing Metal Ions in Water. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300884] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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25
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BINOL Macrocycle Derivatives: Synthesis of New Dinaphthyl Sulfide Aza Oxa Thia Crowns (Lariats). J CHEM-NY 2013. [DOI: 10.1155/2013/598937] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
In this research work, dinaphthyl sulfide diester was prepared from the reaction of 1,1′-thiobis (2-hydroxy naphthalene) and methylchloroacetate. Its aza-macrocyclic derivative was synthesized from the reaction of dinaphthyl sulfide diester and diethylenetriamine. Lariats were prepared from the reaction of chloroamides (four derivatives) and initial macrocycle. Chloroamides were synthesized from the reaction of amines (aniline, benzylamine, 8-amino quinoline and 4-amino azobenzene) and chloroacetyl chloride. All the materials were identified by IR,1H NMR,13C NMR, and mass spectroscopies, and elemental analysis.
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26
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Tzirakis MD, Marion N, Schweizer WB, Diederich F. A shape-persistent alleno-acetylenic macrocycle with a modifiable periphery: synthesis, chiroptical properties and H-bond-driven self-assembly into a homochiral columnar structure. Chem Commun (Camb) 2013; 49:7605-7. [DOI: 10.1039/c3cc44101f] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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27
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Caricato M, Coluccini C, Vander Griend DA, Forni A, Pasini D. From red to blue shift: switching the binding affinity from the acceptor to the donor end by increasing the π-bridge in push–pull chromophores with coordinative ends. NEW J CHEM 2013. [DOI: 10.1039/c3nj00466j] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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28
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Huang D, Zhao J, Wu W, Yi X, Yang P, Ma J. Visible-Light-Harvesting Triphenylamine Ethynyl C60-BODIPY Dyads as Heavy-Atom-Free Organic Triplet Photosensitizers for Triplet-Triplet Annihilation Upconversion. ASIAN J ORG CHEM 2012. [DOI: 10.1002/ajoc.201200062] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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29
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Caricato M, Olmo A, Gargiulli C, Gattuso G, Pasini D. A ‘clicked’ macrocyclic probe incorporating Binol as the signalling unit for the chiroptical sensing of anions. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.07.038] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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30
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Caricato M, Leza NJ, Gargiulli C, Gattuso G, Dondi D, Pasini D. Synthesis and anion recognition properties of shape-persistent binaphthyl-containing chiral macrocyclic amides. Beilstein J Org Chem 2012; 8:967-76. [PMID: 23015847 PMCID: PMC3388887 DOI: 10.3762/bjoc.8.109] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2012] [Accepted: 05/23/2012] [Indexed: 11/23/2022] Open
Abstract
We report on the synthesis and characterization of novel shape-persistent, optically active arylamide macrocycles, which can be obtained using a one-pot methodology. Resolved, axially chiral binol scaffolds, which incorporate either methoxy or acetoxy functionalities in the 2,2' positions and carboxylic functionalities in the external 3,3' positions, were used as the source of chirality. Two of these binaphthyls are joined through amidation reactions using rigid diaryl amines of differing shapes, to give homochiral tetraamidic macrocycles. The recognition properties of these supramolecular receptors have been analyzed, and the results indicate a modulation of binding affinities towards dicarboxylate anions, with a drastic change of binding mode depending on the steric and electronic features of the functional groups in the 2,2' positions.
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Affiliation(s)
- Marco Caricato
- Department of Chemistry, University of Pavia, Viale Taramelli 10, 27100 Pavia, Italy
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31
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32
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Takaishi K, Muranaka A, Kawamoto M, Uchiyama M. Photoinversion of Cisoid/Transoid Binaphthyls. Org Lett 2011; 14:276-9. [DOI: 10.1021/ol203053q] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Kazuto Takaishi
- RIKEN, Hirosawa 2-1, Wako, Saitama 351-0198, Japan, Japan Science and Technology Agency (JST), PRESTO, Kawaguchi 332-0012, Japan, and Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Atsuya Muranaka
- RIKEN, Hirosawa 2-1, Wako, Saitama 351-0198, Japan, Japan Science and Technology Agency (JST), PRESTO, Kawaguchi 332-0012, Japan, and Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Masuki Kawamoto
- RIKEN, Hirosawa 2-1, Wako, Saitama 351-0198, Japan, Japan Science and Technology Agency (JST), PRESTO, Kawaguchi 332-0012, Japan, and Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Masanobu Uchiyama
- RIKEN, Hirosawa 2-1, Wako, Saitama 351-0198, Japan, Japan Science and Technology Agency (JST), PRESTO, Kawaguchi 332-0012, Japan, and Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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33
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Canevet D, Pérez EM, Martín N. Wirte für Fullerene: maßgeschneiderte Makrocyclen und Käfige. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201101297] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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34
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Canevet D, Pérez EM, Martín N. Wraparound Hosts for Fullerenes: Tailored Macrocycles and Cages. Angew Chem Int Ed Engl 2011; 50:9248-59. [DOI: 10.1002/anie.201101297] [Citation(s) in RCA: 190] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2011] [Indexed: 11/10/2022]
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35
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Nakanishi W, Matsuno T, Ichikawa J, Isobe H. Illusory Molecular Expression of “Penrose Stairs” by an Aromatic Hydrocarbon. Angew Chem Int Ed Engl 2011; 50:6048-51. [DOI: 10.1002/anie.201102210] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2011] [Indexed: 11/09/2022]
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36
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Nakanishi W, Matsuno T, Ichikawa J, Isobe H. Illusory Molecular Expression of “Penrose Stairs” by an Aromatic Hydrocarbon. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201102210] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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37
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Caricato M, Coluccini C, Dondi D, Vander Griend DA, Pasini D. Nesting complexation of C60 with large, rigid D2 symmetrical macrocycles. Org Biomol Chem 2010; 8:3272-80. [DOI: 10.1039/c004379f] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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38
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Coluccini C, Mazzanti A, Pasini D. Locked chromophores as CD and NMR probes for the helical conformation of tetraamidic macrocycles. Org Biomol Chem 2010; 8:1807-15. [DOI: 10.1039/b924400j] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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