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postsynthetic modification of Metal-Organic Frameworks through Click Chemistry

Chinese Journal of Chemistry 2016年第2期34卷 186-190页

作者： Bo Gui Xiangshi Meng Hai Xu Cheng Wang Key Laboratory of Biomedical Polymers (Ministry of Education) College of Chemistry and Molecular Sciences Wuhan University Wuhan Hubei 430072 China College of Chemistry and Chemical Engineering Central South University Changsha Hunan 410083 China

The postsynthetic modification （PSM） of metal-organic frameworks （MOFs） has emerged as a powerful tool to chemically tailor the interior of MOFs. In this review, we summarize the research progress of PSM of MOFs t... 详细信息

关键词： postsynthetic modification metal-organic frameworks click chemistry azide-alkyne click reaction thiol-ene reaction

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Selenium-functionalized metal-organic frameworks as enzyme mimics

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Nano Research 2018年第10期11卷 5761-5768页

作者： Weiqiang Zhou Hongfeng Li Bin Xia Wenlan Ji Shaobo Ji Weina Zhang Wei Huang Fengwei Huo Huaping Xu Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM) Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) Nanjing Tech University (Nanjing Tech) Nanjing 211816 China Key Laboratory of Organic Optoelectronics and Molecular Engineering Department of Chemistry Tsinghua University Beijing 100084 China

The development of artificial enzyme mimics has been rapidly growing in recent years, and it is attracting increasing attention owing to their remarkable advantages over natural enzymes. Herein, we developed a general and facile method to fabricate efficient glutathione peroxidase （GPx） mimics by grafting selenium-containing molecules （phenylselenylbromide, PhSeBr） to a Zr（W）-based UiO-66-NH2 framework. In the presence of glutathione （GSH） serving as substrate, the fabricated UiO-66-Se catalysts can catalyze the reduction of hydroperoxides. The as-prepared UiO-66-Se systems show good catalytic activity over three cycles. These high-efficiency GPx mimic metal-organic frameworks （MOFs） are endowed with excellent thermal and structural stability, providing a promising avenue for the development of artificial enzyme mimics.

关键词： metal-organic frameworks nano chemistry selenium chemistry enzyme mimic postsynthetic modification

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Highly catalytic metal–organic framework coating enabled by liquid superwetting and confinement

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Nano Research 2023年第5期16卷 7716-7723页

作者： Bo Yi Yan-Lung Wong Kedi Li Changshun Hou Tengrui Ma Zhengtao Xu Xi Yao Department of Biomedical Sciences City University of Hong KongHong Kong 999077China Department of Chemistry City University of Hong KongHong Kong 999077China Institute of Materials Research and Engineering Agency for ScienceTechnology and Research(A*STAR)Singapore 138634Singapore City University of Hong Kong Shenzhen Research Institute Shenzhen 518057China

In this work,we report that high catalytic performance of metal–organic frameworks(MOFs)can be obtained through a synergistic effect of postsynthetic modification of MOF nanoparticles and liquid superwetting and confinement in the MOF ***,2-ureido-4[1H]pyrimidinone(UPy)functionalized polysiloxanes were covalently appended onto the UiO-66 nanoparticles via a postsynthetic approach,which were further anchored onto different porous films through multivalent hydrogen bonding of the UPy *** hydrophobic MOF coating can preserve the porosity of the solid substrates,enable rapid liquid superwetting and confinement within the porous *** the Knoevenagel condensation as a modeled system,robust and highly catalytic performances of the MOF coating were observed on a range of aldehyde ***-scale production of chromene,a pharmaceutical which is typically synthesized via expensive catalysis,was successfully demonstrated on the MOF coating with high yielding rates,demonstrating the great potential of the MOF coating in pharmaceutical synthesis.

关键词： metal–organic framework postsynthetic modification hydrogen bonding superwetting liquid confinement

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Recent advance in porous coordination polymers from the viewpoint of crystalline-state transformation

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Science China Chemistry 2011年第9期54卷 1371-1394页

作者： YIN Zheng ZENG MingHua Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources Ministry of EducationSchool of Chemistry&Chemical EngineeringGuangxi Normal UniversityGuilin 541004China

Recently,research of crystalline-state transformation involving the removal/inclusion of guest molecules in porous coordination polymers(PCPs) was ***-state transformation,especially,single-crystal to single-crystal(SC-SC) transformation as new method for the direct observation of host-guest chemistry,can reveal the intrinsic relevance and interaction between the framework and guest *** review describes our work concerning PCPs and recent investigations of others,within the last four years,from the viewpoint of crystalline-state transformations of PCPs on guest removal or inclusion *** substitution reaction and postsynthetic modification of PCPs in SC-SC fashion which were distinguished from conventional crystalline-state transformation triggered by guest removal or exchange were highlighted in this *** research status of crystalline-state transformation in China was briefly introduced as *** of structure analysis techniques including single-crystal X-ray diffraction,powder X-ray diffraction,neutron diffraction,inelastic neutron scattering as well as the application of synchrotron radiation light source will inevitably promote the advance of study of crystalline-state *** as a hotspot,deep investigations of crystalline-state transformation also help us to overcome the challenge of achieving multifunction and the correlation among them,such as sorption,magnetism,optical or electrical properties simultaneously in PCPs and contribute to design stimulate-oriented porous intelligent materials in the future.

关键词： porous coordination polymer crystalline-state transformation ligand substitution reaction postsynthetic modification structure analysis techniques

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Tuning the release rate of volatile molecules by pore surface engineering in metal-organic frameworks

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Chinese Chemical Letters 2021年第6期32卷 1988-1992页

作者： Hongwen Chen Huaqiang Chen Bo Zhang Liming Jiang Youqing Shen Engang Fu Dan Zhao Zhuxian Zhou Key Laboratory of Biomass Chemical Engineering of Ministry of Education and Center for Bionanoengineering College of Chemical and Biological EngineeringZhejiang UniversityHangzhou 310027China State Key Laboratory of Nuclear Physics and Technology School of PhysicsPeking UniversityBeijing 100871China Key Laboratory of Macromolecular Synthesis and Functionalization of Ministry of Education Department of Polymer Science and EngineeringZhejiang UniversityHangzhou 310027China Department of Chemical&Biomolecular Engineering National University of SingaporeSingapore 117585Singapore

Encapsulation and controlled release of volatile molecules such as fragrances in a designed manner is important but challenging for the flavor and fragrance ***,we report the tuning release of volatile molecules by postsynthetic modification of an amine-terminated metal-organic framework(MOF)MIL-101-NH_(2).By amidation,we obtained three MIL-101 MOFs,the trimethylacetamideterminated TC-MIL-101,the benzamide-terminated BC-MIL-101,and the oxalic acid monoamideterminated *** the MOFs can efficiently encapsulate volatile ***,we demonstrate that the release profile of volatiles can be widely tuned to sustain the release in several days to months and even over a year using different modified MIL-101 *** show that the release profiles are correlated with the binding energies between the guest volatiles and pores in *** pore diffusion and the synergistic transport are the rate-limiting step of the guest molecules from the modified MOFs.

关键词： Metal-organic frameworks(MOFs) postsynthetic modification Encapsulation and sustained-release Fragrances Host-guest interaction

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