Charge Dynamics in A Donor–Acceptor Covalent Organic Framework with Periodically Ordered Bicontinuous Heterojunctions

Jin, Shangbin; Ding, Xuesong; Feng, Xiao; Supur, Mustafa; Furukawa, Ko; Takahashi, Seiya; Addicoat, Matthew A.; Elkhouly, Mohamed; Nakamura, Toshikazu; Irle, Stephan; Fukuzumi, Shunichi; Nagai, Atsushi; Jiang, Donglin

doi:10.1002/ange.201209513

Cited by 90 publications

(75 citation statements)

References 39 publications

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“…COFs have attracted a lot of interest for their diverse applications, including gas separation and storage,7, 8 catalysis,9, 10 and optoelectronic devices 4. 11 On the other hand, the reversible reactions can lead to instability of the COF structure. Thus, rational design and optimization of the linkages in COFs have become a focus for research in the field to enhance COF stability.…”

Section: Methodsmentioning

confidence: 99%

Reconstruction of Covalent Organic Frameworks by Dynamic Equilibrium

Gao

Bai

Zeng

et al. 2015

Chemistry A European J

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Covalent organic frameworks (COFs) are periodic two- or three-dimensional polymeric networks with high surface areas, low density, and designed structures. Because COFs are normally prepared based on reversible formation of covalent bonds with relatively weak stability, their structures can be easily broken or damaged due to changes in the surrounding environment. Thus, developing strategies to realize the reconstruction of COFs in order to extend their usage lifetime is crucial for practical applications. In addition, exploring the kinetics of COF growth under varied reaction conditions is important for better understanding the nucleation and growth processes of COFs. In this work, the reformation mechanism of an imine-based COF using an ex situ characterization method was investigated, disclosing an interesting COF reconstruction progress from disorder to order. The present study shows the regeneration ability of COFs, and the developed method could be generalized for broader use in the field.

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Section: Methodsmentioning

confidence: 99%

Reconstruction of Covalent Organic Frameworks by Dynamic Equilibrium

Gao

Bai

Zeng

et al. 2015

Chemistry A European J

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“…Covalent organic frameworks (COFs) are a class of porous organic polymers that have attracted tremendous interest in various fields, such as gas adsorption and storage,, catalysis, sensing, and photovoltaics . They do not only exhibit exceptional properties (such as permanent porosity, high surface areas, and easily‐tunable frameworks) but also, their fully organic nature may result in an improved filler–polymer interaction, avoiding the formation of nonselective defects upon MMM preparation .…”

Section: Figurementioning

confidence: 99%

Azine‐Linked Covalent Organic Framework (COF)‐Based Mixed‐Matrix Membranes for CO₂/CH₄ Separation

Shan

Seoane

Rozhko

et al. 2016

Chemistry A European J

172

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Mixed-matrix membranes (MMMs) comprising Matrimid and a microporous azine-linked covalent organic frameworks (ACOF-1) were prepared and tested in the separation of CO2 from an equimolar CO2 /CH4 mixture. The COF-based MMMs show a more than doubling of the CO2 permeability upon 16 wt % ACOF-1 loading together with a slight increase in selectivity compared to the bare polymer. These results show the potential of COFs in the preparation of MMMs.

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“…[18] In addition, Saha and co-workers have shown that during the interaction with strong basic anions, such as fluoride, an electron-transfer (ET) process between the anions and the electron-deficient NDI occurs, which can take place thermally or is just photoinduced (PET), depending on the position of the frontier molecular orbitals (FMOs) of the NDI and anion. [19] Besides the donor-acceptor complexes, organic scaffolds [20] and supramolecularly organized systems have been created through appropriate functionalization of NDIs. Amino acid functionalized NDI derivatives were used to build-up helical nanorods that are held together through hydrogen bonding and can function, for example, as receptors for C 60 .…”

Section: Introductionmentioning

confidence: 99%

Strategies for the Synthesis of Functional Naphthalene Diimides

2014

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Naphthalene diimides, which have for a long time been in the shadow of their higher homologues the perylene diimides, currently belong to the most investigated classes of organic compounds. This is primarily due to the initial synthetic studies on core functionalization that were carried out at the beginning of the last decade, which facilitated diverse structural modifications of the naphthalene scaffold. Compounds with greatly modified optical and electronic properties that can be easily and effectively modulated by appropriate functionalization were made accessible through relatively little synthetic effort. This resulted in diverse interesting applications. The electron-deficient character of these compounds makes them highly valuable, particularly in the field of organic electronics as air-stable n-type semiconductors, while absorption bands over the whole visible spectral range through the introduction of core substituents enabled interesting photosystems and photovoltaic applications. This Review provides an overview on different approaches towards core functionalization as well as on synthetic strategies for the core expansion of naphthalene diimides that have been developed mainly in the last five years.

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Charge Dynamics in A Donor–Acceptor Covalent Organic Framework with Periodically Ordered Bicontinuous Heterojunctions

Cited by 90 publications

References 39 publications

Reconstruction of Covalent Organic Frameworks by Dynamic Equilibrium

Reconstruction of Covalent Organic Frameworks by Dynamic Equilibrium

Azine‐Linked Covalent Organic Framework (COF)‐Based Mixed‐Matrix Membranes for CO₂/CH₄ Separation

Strategies for the Synthesis of Functional Naphthalene Diimides

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Charge Dynamics in A Donor–Acceptor Covalent Organic Framework with Periodically Ordered Bicontinuous Heterojunctions

Cited by 90 publications

References 39 publications

Reconstruction of Covalent Organic Frameworks by Dynamic Equilibrium

Reconstruction of Covalent Organic Frameworks by Dynamic Equilibrium

Azine‐Linked Covalent Organic Framework (COF)‐Based Mixed‐Matrix Membranes for CO2/CH4 Separation

Strategies for the Synthesis of Functional Naphthalene Diimides

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Azine‐Linked Covalent Organic Framework (COF)‐Based Mixed‐Matrix Membranes for CO₂/CH₄ Separation