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R. Hinojosa D, J. Pataki N, Rossi P, Erhardt A, Guchait S, Pallini F, McNeill C, Müller C, Caironi M, Sommer M. Solubilizing Benzodifuranone-Based Conjugated Copolymers with Single-Oxygen-Containing Branched Side Chains. ACS APPLIED POLYMER MATERIALS 2024; 6:457-465. [PMID: 38230364 PMCID: PMC10788869 DOI: 10.1021/acsapm.3c02137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 11/22/2023] [Accepted: 11/27/2023] [Indexed: 01/18/2024]
Abstract
Single-oxygen-containing branched side chains are designed and used to solubilize n-type copolymers consisting of BDF (benzodifuranone), isatin, and thiophene-based units. We present a simple synthetic approach to side chains with varying linker distances between the backbone and the branching point. The synthetic pathway is straightforward and modular and starts with commercially available reagents. The side chains give rise to excellent solubilities of BDF-thiophene copolymers of up to 90 mg/mL, while still being moderate in size (26-34 atoms large). The excellent solubility furthermore allows high molar mass materials. BDF-thiophene copolymers are characterized in terms of optoelectronic and thermoelectric properties. The electrical conductivity of chemically doped polymers is found to scale with molar mass, reaching ∼1 S/cm for the highest molar mass and longest backbone-branching point distance.
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Affiliation(s)
- Diego R. Hinojosa
- Institut
für Chemie, Technische Universität
Chemnitz, Straße der Nationen 62, 09111 Chemnitz, Germany
- Forschungszentrum
MAIN, TU Chemnitz, Rosenbergstraße 6, 09126 Chemnitz, Germany
| | - Nathan J. Pataki
- Center
for Nano Science and Technology, Via Rubattino 81, 20134 Milano, Italy
- Department
of Physics, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133Milano ,Italy
| | - Pietro Rossi
- Center
for Nano Science and Technology, Via Rubattino 81, 20134 Milano, Italy
- Department
of Physics, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133Milano ,Italy
| | - Andreas Erhardt
- Department
of Materials Science and Engineering, Monash
University, Clayton, Victoria 3800, Australia
| | - Shubhradip Guchait
- Institute
Charles Sadron, Université de Strasbourg, Strasbourg F-67000, France
| | - Francesca Pallini
- Department
of Materials Science, Università
di Milano-Bicocca, via
Cozzi 55, 20125 Milan, Italy
| | - Christopher McNeill
- Department
of Materials Science and Engineering, Monash
University, Clayton, Victoria 3800, Australia
| | - Christian Müller
- Department
of Chemistry and Chemical Engineering Chalmers
University of Technology Göteborg 412 96, Sweden
| | - Mario Caironi
- Center
for Nano Science and Technology, Via Rubattino 81, 20134 Milano, Italy
| | - Michael Sommer
- Institut
für Chemie, Technische Universität
Chemnitz, Straße der Nationen 62, 09111 Chemnitz, Germany
- Forschungszentrum
MAIN, TU Chemnitz, Rosenbergstraße 6, 09126 Chemnitz, Germany
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Eder S, Ding B, Thornton DB, Sammut D, White AJP, Plasser F, Stephens IEL, Heeney M, Mezzavilla S, Glöcklhofer F. Squarephaneic Tetraanhydride: A Conjugated Square-Shaped Cyclophane for the Synthesis of Porous Organic Materials. ANGEWANDTE CHEMIE (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 134:e202212623. [PMID: 38504923 PMCID: PMC10947162 DOI: 10.1002/ange.202212623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Indexed: 11/10/2022]
Abstract
Aromatic carboxylic anhydrides are ubiquitous building blocks in organic materials chemistry and have received considerable attention in the synthesis of organic semiconductors, pigments, and battery electrode materials. Here we extend the family of aromatic carboxylic anhydrides with a unique new member, a conjugated cyclophane with four anhydride groups. The cyclophane is obtained in a three-step synthesis and can be functionalised efficiently, as shown by the conversion into tetraimides and an octacarboxylate. Crystal structures reveal the high degree of porosity achievable with the new building block. Excellent electrochemical properties and reversible reduction to the tetraanions are shown for the imides; NMR and EPR measurements confirm the global aromaticity of the dianions and evidence the global Baird aromaticity of the tetraanions. Considering the short synthesis and unique properties, we expect widespread use of the new building block in the development of organic materials.
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Affiliation(s)
- Simon Eder
- Department of ChemistryImperial College LondonMolecular Sciences Research HubLondonW12 0BZUK
- Centre for Processable ElectronicsImperial College LondonMolecular Sciences Research HubLondonW12 0BZUK
| | - Bowen Ding
- Department of ChemistryImperial College LondonMolecular Sciences Research HubLondonW12 0BZUK
- Centre for Processable ElectronicsImperial College LondonMolecular Sciences Research HubLondonW12 0BZUK
| | - Daisy B. Thornton
- Department of MaterialsImperial College LondonRoyal School of MinesLondonSW7 2AZUK
- The Faraday InstitutionHarwell Science and Innovation CampusDidcotOX11 0RAUK
| | - Darlene Sammut
- Department of ChemistryImperial College LondonMolecular Sciences Research HubLondonW12 0BZUK
- Centre for Processable ElectronicsImperial College LondonMolecular Sciences Research HubLondonW12 0BZUK
| | - Andrew J. P. White
- Department of ChemistryImperial College LondonMolecular Sciences Research HubLondonW12 0BZUK
| | - Felix Plasser
- Department of ChemistryLoughborough UniversityLoughboroughLE11 3TUUK
| | - Ifan E. L. Stephens
- Department of MaterialsImperial College LondonRoyal School of MinesLondonSW7 2AZUK
- The Faraday InstitutionHarwell Science and Innovation CampusDidcotOX11 0RAUK
| | - Martin Heeney
- Department of ChemistryImperial College LondonMolecular Sciences Research HubLondonW12 0BZUK
- Centre for Processable ElectronicsImperial College LondonMolecular Sciences Research HubLondonW12 0BZUK
| | - Stefano Mezzavilla
- Department of MaterialsImperial College LondonRoyal School of MinesLondonSW7 2AZUK
| | - Florian Glöcklhofer
- Department of ChemistryImperial College LondonMolecular Sciences Research HubLondonW12 0BZUK
- Centre for Processable ElectronicsImperial College LondonMolecular Sciences Research HubLondonW12 0BZUK
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3
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Eder S, Ding B, Thornton DB, Sammut D, White AJP, Plasser F, Stephens IEL, Heeney M, Mezzavilla S, Glöcklhofer F. Squarephaneic Tetraanhydride: A Conjugated Square-Shaped Cyclophane for the Synthesis of Porous Organic Materials. Angew Chem Int Ed Engl 2022; 61:e202212623. [PMID: 36178733 PMCID: PMC9827958 DOI: 10.1002/anie.202212623] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Indexed: 01/12/2023]
Abstract
Aromatic carboxylic anhydrides are ubiquitous building blocks in organic materials chemistry and have received considerable attention in the synthesis of organic semiconductors, pigments, and battery electrode materials. Here we extend the family of aromatic carboxylic anhydrides with a unique new member, a conjugated cyclophane with four anhydride groups. The cyclophane is obtained in a three-step synthesis and can be functionalised efficiently, as shown by the conversion into tetraimides and an octacarboxylate. Crystal structures reveal the high degree of porosity achievable with the new building block. Excellent electrochemical properties and reversible reduction to the tetraanions are shown for the imides; NMR and EPR measurements confirm the global aromaticity of the dianions and evidence the global Baird aromaticity of the tetraanions. Considering the short synthesis and unique properties, we expect widespread use of the new building block in the development of organic materials.
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Affiliation(s)
- Simon Eder
- Department of ChemistryImperial College LondonMolecular Sciences Research HubLondonW12 0BZUK
- Centre for Processable ElectronicsImperial College LondonMolecular Sciences Research HubLondonW12 0BZUK
| | - Bowen Ding
- Department of ChemistryImperial College LondonMolecular Sciences Research HubLondonW12 0BZUK
- Centre for Processable ElectronicsImperial College LondonMolecular Sciences Research HubLondonW12 0BZUK
| | - Daisy B. Thornton
- Department of MaterialsImperial College LondonRoyal School of MinesLondonSW7 2AZUK
- The Faraday InstitutionHarwell Science and Innovation CampusDidcotOX11 0RAUK
| | - Darlene Sammut
- Department of ChemistryImperial College LondonMolecular Sciences Research HubLondonW12 0BZUK
- Centre for Processable ElectronicsImperial College LondonMolecular Sciences Research HubLondonW12 0BZUK
| | - Andrew J. P. White
- Department of ChemistryImperial College LondonMolecular Sciences Research HubLondonW12 0BZUK
| | - Felix Plasser
- Department of ChemistryLoughborough UniversityLoughboroughLE11 3TUUK
| | - Ifan E. L. Stephens
- Department of MaterialsImperial College LondonRoyal School of MinesLondonSW7 2AZUK
- The Faraday InstitutionHarwell Science and Innovation CampusDidcotOX11 0RAUK
| | - Martin Heeney
- Department of ChemistryImperial College LondonMolecular Sciences Research HubLondonW12 0BZUK
- Centre for Processable ElectronicsImperial College LondonMolecular Sciences Research HubLondonW12 0BZUK
| | - Stefano Mezzavilla
- Department of MaterialsImperial College LondonRoyal School of MinesLondonSW7 2AZUK
| | - Florian Glöcklhofer
- Department of ChemistryImperial College LondonMolecular Sciences Research HubLondonW12 0BZUK
- Centre for Processable ElectronicsImperial College LondonMolecular Sciences Research HubLondonW12 0BZUK
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4
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Synthesis, properties, and material hybridization of bare aromatic polymers enabled by dendrimer support. Nat Commun 2022; 13:5358. [PMID: 36114165 PMCID: PMC9481634 DOI: 10.1038/s41467-022-33100-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 09/01/2022] [Indexed: 11/11/2022] Open
Abstract
Aromatic polymers are the first-choice platform for current organic materials due to their distinct optical, electronic, and mechanical properties as well as their biocompatibility. However, bare aromatic polymer backbones tend to strongly aggregate, rendering them essentially insoluble in organic solvent. While the typical solution is to install many solubilizing substituents on the backbones, this often provokes undesired property changes. Herein, we report the synthesis of bare aromatic polymers enabled by a dendrimer support. An initiator arene containing a diterpenoid-based dendrimer undergoes Pd-catalyzed polymerization with monomers bearing no solubilizing substituents to furnish bare aromatic polymers such as polythiophenes and poly(para-phenylene)s. The high solubility of dendrimer-ligated polymers allows not only the unveiling of the properties of unsubstituted π-conjugated backbone, but also mild release of dendrimer-free aromatic polymers and even transfer of aromatic polymers to other materials, such as silica gel and protein, which may accelerate the creation of hybrid materials nowadays challenging to access. Unsubstituted aromatic polymers are materials with multiple potential applications, but their preparation remains challenging. Here, the authors report a dendrimer-enabled synthesis of soluble bare aromatic polymers and explore their properties; these compounds can be further transformed into other materials.
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