Themed collection Metal organic frameworks and porous polymers

This perspective deviates from exclusively focusing on structural features of actinide-containing metal-organic frameworks and pivots towards their prospect as avant-garde materials with an emphasis on their physicochemical properties.

MOFs are promising candidates for the capture of toxic gases such as SO₂, H₂S, NH₃ and NOx. Understanding the role of different chemical functionalities, within the pores of MOFs, is the key for accomplishing superior captures of these toxic gases.

MOF-based optical sensors can achieve volatile organic compound sensing via different mechanisms: colorimetric sensing, luminescent sensing and optical-index modulation sensing.

This review summarizes the progress of metal–organic frameworks and their derivatives as advanced multifunctional platforms for metal-ion hybrid capacitors.

This article describes the conceptual basis of rational design in COF chemistry and comprehensively discusses the crystal structure determination of COFs using the topological approach, X-ray diffraction, and 3D electron diffraction.

This review summarizes comprehensively the latest methods of synthesizing MOFs/graphene and their derivatives, and their application in energy storage and conversion with a detailed analysis of the structure–property relationship.

In recent years the 2D concept has been transferred from conventional 2D materials to porous 2D framework materials. This minireview takes a closer look onto the preparation of 2D framework materials and their merits for energy applications.

Three-dimensional electron diffraction is a powerful tool for accurate structure determination of zeolite, MOF, and COF crystals that are too small for X-ray diffraction. By revealing the structural details, the properties of the materials can be understood, and new materials and applications can be designed.

We report the construction of phenothiazine-based covalent organic frameworks, which exhibited diverse structures, the feasibility of bandgap engineering, and unprecedented ultralow exciton binding energy of ∼50 meV for photocatalytic polymerization.

The synthesis of a light-driven molecular motor and its incorporation into a series of imine-based polymers and covalent organic frameworks is presented and criteria for the spectroscopic probing of molecular dynamics in porous solids are discussed.

Tuning of luminescent and SIM properties is herein reported, in a novel flexible 3D anilato-based Er^III-MOF, displaying reversible shrinkage/expansion from a distorted hexagonal to a 3,6-brickwall rectangular structure.

Industrially important C₂H₄ purification from multi-component hydrocarbon mixtures.

A Ti-based MOF with long-lived Ti³⁺ can achieve dark photocatalysis. The different groups on the organic linker modulate electron storage ability and the lifetime of Ti³⁺, significantly regulating dark photocatalytic activity in H₂ production.

Superb control over the helical chirality of highly-entangled (M₃L₂)_n polyhedra (M = Cu(I), Ag(I); n = 2,4,8) was achieved via multiplication of weak chiral inductions by side chains accumulated on the huge polyhedral surfaces.

A synthetic strategy to prepare 2D heterostructures from ultrathin CeO₂ surface-coordinated metal–organic framework was proposed, proving multiple effects of metal-coordinated interactions in 2D heterostructures.

A covalent organic framework (Tp-PTO-COF) with carbonyl active sites was proposed as a novel cathode material and successfully applied in aqueous rechargeable zinc-ion batteries (ZIBs).

We report a new synthetic approach for the intermolecular α-alkylation of aldehydes with alkyl halides based on a BINOL-phosphate and Cu(II)-porphyrin derived multifunctional CCOF catalyst via visible-light induced photothermal conversion.

The photo-response of the redox-active metal–organic framework has been systematically tuned by incorporating plasmonic Ag nanoparticles and tetrathiafulvalene radicals, resulting in efficient near-infrared photothermal conversion materials.

Macroporous polymer frameworks with a tunable pore size were readily prepared using 4-arm rod-like polymers as building blocks. They showed excellent iodine capture performance with very high efficiency (1 minute) and high capacity (574%).

We develop a strategy to efficiently fabricate ultrathin covalent organic framework nanosheets (CONs) through direct polycondensation of monomers under ultrasonic treatment. The CONs exhibit excellent photocatalytic performance for the degradation of organic pollutants.

A stable Z-scheme with well-defined architecture by in situ growth of COFs on CdS for photocatalytic water splitting is constructed. The T-COF shell can protect the catalytic center of CdS from deactivation and photocorrosion.

Porphyrin-based donor–acceptor COFs are effective heterogeneous photocatalysts for photoinduced electron transfer-reversible addition–fragmentation chain transfer (PET-RAFT), including for aqueous polymerizations and under red-light excitation.

A robust In-MOF, In(tcpp), demonstrates sensitive detection of the fluorinated chemical species F⁻ and PFOA via distinctly different luminescence signal change, and effective adsorption and removal of both species from aqueous solution.

The Brønsted/Lewis acid properties of Hf-MOF-808 can be tuned by simply controlling the solvent employed in its synthesis, with direct catalytic implications on the activity and selectivity of organic reactions sensitive to the active site nature.

The library of isostructural porous frameworks enables a systematic survey to optimize the structure and functionality of porous materials.

The synergistic effect of physical and chemical adsorption of iodine in tetrathiafulvalene-based covalent organic frameworks (COFs) has been explored. The iodine adsorption capacity of these materials is higher than other materials reported so far.

The allure of metal–organic frameworks (MOFs) in heterogeneous electrocatalysis is that catalytically active sites may be designed a priori with an unparalleled degree of control.

The addition of TFA can trigger the interlay sliding of 2D copper(I) organic frameworks prepared by combing the chemistry of MOFs and COFs. The variation of interlay stacking largely affected the porosity, chemical stability and catalytic activities.

We report the successful use of a gastro-resistant covalent organic framework for in vivo oral delivery of insulin.

We demonstrate a simple and effective host–guest strategy for preparing ultra-small lead bromide perovskite QDs through the use of nano-sized MOFs that function as nucleating and host sites.

Melt-quenched coordination polymer glass shows exclusive H⁺ conductivity (8.0 × 10⁻³ S cm⁻¹ at 120 °C, anhydrous) and optimal mechanical properties (42.8 Pa s at 120 °C), enables the operation of an all-solid-state proton battery from RT to 110 °C.

Hemin/G-quadruplex DNAzyme-modified metal–organic framework nanoparticles act as functional hybrids for the catalyzed oxidation of luminol by H₂O₂, causing chemiluminescence and activation of chemiluminescence resonance energy transfer to the dye loads.

We report the liquid-phase ultrasonic exfoliation of two layered hydrogen-bonded frameworks into monolayer, micron-sized, and water-stable nanosheets (HONs) connected purely by hydrogen-bonding interactions.

A lanthanide based photochromic coordination polymer gel (pcCPG) material has been developed which showed photomodulated colour change based on pcFRET and has the potential to be employed for decoding secret information.

Reversible switch between a robust bistable two-state room temperature spin crossover (SCO) and its transformation in a four-stepped elastically frustrated SCO due to guest inclusion in a metal–organic Hofmann framework.