The development of low-dimensional perovskite micro/nanostructures with high water stability for novel photonic/electronic applications is highly desirable.

From the perspective of the chromophore, 1,1,2,2-tetrakis­(4-(pyridin-4-yl)­phenyl)­ethane (TPPE) with the π-electron-rich tetraphenylethylene (TPE) and aggregation induced emission feature is selected as functional ligand to construct the fluorescent metal–organic frameworks. Three luminescent MOFs (1–3) have been successfully synthesized. Through combining 4,4′,4″-nitrilotrisbenzoic acid (H3TNB) with electron-donor triphenylamine (TPA), the highly porous pillared-layer compound 1 [Zn3(TPPE)1/2(TNB)2]­(4DMA·7H2O) was synthesized; interestingly, this MOF sensor film realizes the fast detection for nitrobenzene compounds with a response time of less than 3 min as well as good recyclability. Compound 2 [Zn7(TPPE)2(SO4 2–)7]­(DMF·H2O) exhibits the clear “turn-off” quenching responses for Cr2O7 2– in aqueous phase with high selectivity and sensitivity. Meanwhile, the fluorescent properties of compound 3 [Zn2(TPPE)3/2(NO3 –)­(OH–)­(H2O)]­(DMF·2H2O) were also investigated. Thus, these MOF materials could serve as the promising platform for luminescent sensing.

Molecule-based solid-state materials with long lifetimes could enable longer migration distances for excitons, which are beneficial for vast applications in optoelectronic field. Herein, we report a hexanuclear zinc cluster based MOF exhibits highly enhanced phosphorescence about 2 orders of magnitude in comparison with the pristine phosphor ligand. The combination of both experimental and computational results suggest that the {Zn6} cluster is very important for adjusting molecular conformations, packing arrangement, and photophysical properties of the organic phosphor ligands within the MOF matrix. Optoelectronic measurements reveal that the MOF-modified electrode is catalytically active to hydrogen evolution under light irradiation in neutral solution. Thus, our study provide an effective way to achieve low-cost metal-based phosphorescence MOF, expanding its further optoelectronic applications.

The MS-c anion has been encapsulated in cationic EB-COF to obtain Mo3S13@EB-COF, an efficient, stable and recyclable photocatalytic material. This encapsulation also achieved the conversion of a homogeneous catalyst to a heterogeneous one.

Micro-scale MOF host–guest with tunable phosphorescence and enhanced optoelectronic performance can be obtained by a facile and scalable precipitation process in aqueous solution.

A dual-emitting MOF-based sensor 1⊃HPTS was prepared through encapsulating the dye HPTS via an ion-exchange approach. 1⊃HPTS exhibits a broad response to nitro compounds including nitroaromatic explosives, aliphatic nitro-explosives and nitro-containing antibiotics.

A first new porous d–p HMOF has been yielded by the monometallic MOF as the precursor. The results of the gas sorption and CO2 cycloaddition indicate that this work may supply an effective approach to obtain new functional HMOF materials.

Three new three-dimensional (3D) porous Zn­(II)-based metal–organic frameworks (MOFs), namely, [Zn4O­(L)2(NMP)2(H2O)]·2NMP·2H2O (1), [Zn­(HL)­(bpe)0.5]·DMF·H2O (2), and [Zn­(HL)­(bipy)0.5]·DMF·H2O (3) [bpe = 1,2-di­(pyridin-4-yl)­ethene, and bipy = 4,4′-bipyridine], were successfully synthesized by 5′-carboxyl-(1,1′-3′,1″-terphenyl)-4,4″-dicarboxylic acid (H3L). Sing-crystal X-ray diffraction shows that complex 1 is a twofolded interpenetrated 3D framework possessing the [Zn4O­(COO)6] secondary building units (SBUs), and complexes 2 and 3 are two 3D isostructural networks with different N-donor ancillary ligands, where the partly deprotonated HL2– ligands are included. Gas adsorption behaviors of 1 to 3 for N2, CH4, and CO2 have been studied in detail at different temperatures, indicating that the high uptake and selectivity for CO2 will make it as potential gas storage and separation materials. Significantly, complexes 2 and 3 also exhibit the good organic dye selection and adsorption capacity, and the Congo red (CR) and methylene blue (MB) can be separated successfully by 2 in a very short time.