Coordination-Driven Stereospecific Control Strategy for Pure Cycloisomers in Solid-State Diene Photocycloaddition

Abstract

To obtain a pure product without the isomer byproducts is a goal that many chemists are pursuing. As one kind of very important synthesis method, the photochemical reaction is simple and straightforward yet low-selective. In this work, a coordination interaction-based oriented synthesis strategy has been proposed to realize the precise stereochemical control of the isomeric cyclic compounds in the photocycloaddition reaction. Through fixing the reactants via coordination interactions, the arrangements and configurations of the reactants can be adjusted, thereby successfully producing all of the related photocycloaddition products without isomer byproducts for the first time. This work not only provides a new route to synthesize the pure cyclic compounds but also expands the application of the photocycloaddition reaction.

BiOI Particles Confined into Metal–Organic Framework NU-1000 for Valid Photocatalytic Hydrogen Evolution under Visible-Light Irradiation

“…Moreover, unlike other mesoporous and microporous materials such as activated carbon, SiO 2 , and zeolites, the organic ligand component of MOFs can allow for electronical excitation and function as redox-type photosensitizers, leading to the formation of photoactive MOFs. Some photoactive MOFs exhibit n-type semiconductor behavior and have been used as catalysts in photocatalytic reactions, such as PHE, − CO 2 reduction reaction (CRR), , and organic photosynthesis. − Therefore, a construction of Z-scheme photocatalytic systems based on BiOI and photoactive MOFs is regarded as one of the most effective strategies to increase surface area, improve photoabsorption and charge separation efficiency, and promote reduction and oxidation abilities. Furthermore, because of the structural uniformity of MOF materials, BiOI confined into MOFs should not only prevent the aggregation of the nanoparticles but also have even distribution and more well-defined structures compared to conventional methods such as encapsulation, impregnation, and ion exchange.…”

Zirconium-Based Metal–Organic Framework Particle Films for Visible-Light-Driven Efficient Photoreduction of CO2

“…Visible-light-driven photocatalytic reduction of CO 2 , imitating natural photosynthesis, is an effective technology that can convert solar energy into chemical energy to solve the growing energy crisis. − Metal–organic frameworks (MOFs) were explored as highly efficient and multifunctional heterogeneous photocatalyst candidates, mainly owing to their ultrahigh specific surface area, high adsorption capacity, and adjustable structure. − MOFs were used in photocatalytic reduction of CO 2 , which utilized electrons generated by light excitation to reduce CO 2 into CO and CH 4 . − However, powder catalysts have certain disadvantages, such as light scattering and difficulty with recovering after reaction, which limit their practical application …”

Formation of Planar Chiral Platinum Triangles via Pillar[5]arene for Circularly Polarized Luminescence

“…Coordination-driven metal–organic complexes (MOCs) possess significant value in chemistry, physics, and materials science . Considerable effort has been devoted to the design and self-assembly of discrete MOCs with increasing complexity and functionality .…”