Visible-light harvesting pyrene-based MOFs as efficient ROS generators

Zhang, Yingmu; Pang, Jiandong; Li, Jialuo; Yang, Xinyu; Feng, Mingbao; Cai, Peiyu; Zhou, Hong‐Cai

doi:10.1039/c9sc03080h

Cited by 69 publications

(38 citation statements)

References 59 publications

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“…The electron‐rich benzylamine derivatives (with ‐Me and ‐OMe) were oxidized faster than electron‐poor ones (with ‐F and ‐Cl), which suggested that the substrate electronic effect plays an important role in oxidation reactions, in line with previous reports (Figure 3 d, Figures S43–S46, and Table S3) [23c, 25d, 26] . However, in all cases, the reaction kinetics were slower than those for bare benzylamine, i.e., were also affected by substrate size [11g, 25e] . In addition, in view of the anionic nature of 1.5 wt %‐TPA, the diffusion of electron‐rich substrates into its pores should be more difficult than that of bare benzylamine, and the corresponding reaction can therefore be retarded.…”

Section: Resultssupporting

confidence: 88%

Synthesis and Photocatalytic Properties of Titanium‐Porphyrinic Aerogels

et al. 2020

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We present novel titanium-porphyrinic gels (TPGs) and titanium-porphyrinic aerogels (TPAs), in whichp orphyrinic ligand tetrakis(4-carboxyphenyl)porphyrin is coordinated to Ti-oxo clusters.T hese hierarchically porous TPAs,w ith micro-, meso-, and macropores and reactant-concentrationdependent Brunauer-Emmett-Teller surface areas of 407-738 m 2 g À1 ,are prepared by CO 2 critical point drying of TPGs. Although the Ti 4+ ! Ti 3+ photoreduction of TPAs is less efficient than that of crystalline microporous Ti-porphyrinic framework DGIST-1, prompt diffusion of O 2 and spintrapping agents into the TPApores causes the rapid generation of reactive oxygen species (ROS), as observed by EPR spectroscopy. When used as an ROS scavenger,l arge 1,3diphenylisobenzofuran is degraded by the best-performing TPA1 0t imes faster than by DGIST-1, suggesting that the accessibility of molecules (reactants) to pores (reactive centers) strongly influences photocatalytic activity.

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Section: Resultssupporting

confidence: 88%

Synthesis and Photocatalytic Properties of Titanium‐Porphyrinic Aerogels

et al. 2020

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“…employed this method to grow two visible light responsive pyrene‐based MOFs by solvothermal reactions between pyrene units (H4BPETB) and Zr6/Hf6 clusters (Figure 6). [26] …”

Section: The Ways To Prepare Pah‐based Co‐crystalsmentioning

confidence: 99%

Section: The Ways To Prepare Pah‐based Co‐crystalsmentioning

confidence: 99%

“…For example, Zhou et al employed this method to grow two visible light responsive pyrene-based MOFs by solvothermal reactions between pyrene units (H4BPETB) and Zr6/Hf6 clusters ( Figure 6). [26] Grinding is another effective and fast technology to prepare co-crystals, [27] which can be divided into two categories according to whether the involvement of solvents or not, namely, plain grinding and solvent-assistant grinding. After placing all the components in a mortar, the co-crystals can be quickly formed during grinding, where this method would ensure all the molecules sufficiently contacting with each other.…”

Section: P E R S O N a L A C C O U N T T H E C H E M I C A L R E C O R Dmentioning

confidence: 99%

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Recent Progress in Polycyclic Aromatic Hydrocarbon‐Based Organic Co‐Crystals

Zhang

2020

The Chemical Record

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Recently, the development of polycyclic aromatic hydrocarbon (PAH)‐based organic co‐crystals has attracted increasing interest due to their unique packing modes, optic‐electronic properties and various potential applications in electronic, optic‐electronic and magnetic devices. In this account, we mainly discuss the definition, classification, packing patterns, preparation methods, and applications of PAH‐based co‐crystals. Specifically, the main categories of PAH‐based organic co‐crystals, the frequent methods to prepare them, three main packing patterns, their optical and electrical properties, and their potential applications will be presented. Finally, an outlook of this field is provided.

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“…A series of highly stable MOFs based on Zr 6 clusters and Fe 3 clusters have been obtained under the guidance of HSAB principles. [23][24][25][26] It is particularly worth mentioning that Zr 6 cluster-based PCN-222 and Fe 3 cluster-based PCN-600 are rare examples of ultrastable MOFs with mesoporosity. 26,27 The metal clusters in both of the two MOFs mentioned above are linked by the same square planar, tetratopic, carboxylate ligand, tetrakis(4-carboxyphenyl)porphyrin (H 4 TCPP), which adopted a high D 4h symmetry in the two frameworks.…”

Section: Introductionmentioning

confidence: 99%

Tuning the Structure of Fe-Tetracarboxylate Frameworks Through Linker-Symmetry Reduction

et al. 2021

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acid stability of this mesoporous MOF was improved via postsynthetic metal exchange to chromium . The PCN-668-Cr exhibited very high stability in both acidic and basic aqueous solutions (pH = 1-11). Additionally, the mesoporous MOF showed a high total gravimetric methane uptake (∼500 cm 3 g −1 at 100 bar), while the microporous MOF showed a high volumetric methane storage capacity of 147 cm 3 cm −3 at room temperature.

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Visible-light harvesting pyrene-based MOFs as efficient ROS generators

Abstract: K-region substituted pyrene-based MOFs for ROS generation upon direct visible-light irradiation.

Cited by 69 publications

References 59 publications

Synthesis and Photocatalytic Properties of Titanium‐Porphyrinic Aerogels

Synthesis and Photocatalytic Properties of Titanium‐Porphyrinic Aerogels

Recent Progress in Polycyclic Aromatic Hydrocarbon‐Based Organic Co‐Crystals

Tuning the Structure of Fe-Tetracarboxylate Frameworks Through Linker-Symmetry Reduction

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