A5059528821- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Metal-Organic Frameworks: Synthesis and Applications
- Photochromic and Fluorescence Chemistry
- Covalent Organic Framework Applications
- Luminescence and Fluorescent Materials
- Organic Electronics and Photovoltaics
- Photoreceptor and optogenetics research
- Supramolecular Self-Assembly in Materials
- Nanoplatforms for cancer theranostics
- Sulfur-Based Synthesis Techniques
- Surface Modification and Superhydrophobicity
- Porphyrin and Phthalocyanine Chemistry
- Synthesis of Indole Derivatives
- Carbon Dioxide Capture Technologies
- Industrial Engineering and Technologies
- Solar-Powered Water Purification Methods
- Photochemistry and Electron Transfer Studies
- Catalytic Processes in Materials Science
- Magnetism in coordination complexes
- Advanced Power Generation Technologies
- Engineering Diagnostics and Reliability
- Machine Learning in Materials Science
- Enhanced Oil Recovery Techniques
- Crystallography and molecular interactions
Brandeis University
2021-2024
Sun Yat-sen University
2017-2020
Ocean University of China
2020
A robust Zr-MOF (LIFM-28) containing replaceable coordination sites for additional spacer installation has been employed to demonstrate a swing- or multirole strategy multifunctional MOFs. Through reversible installation/uninstallation of two types spacers with different lengths and variable functional groups, tasks can be accomplished using the same parent MOF. An orthogonal optimizing method is applied seven shorter (L1-7) six longer (L8-13) tune functionalities, achieving multipurpose...
We demonstrate herein a facile strategy to engineer versatile catalytically active coordination interspace in the same primitive metal–organic framework (MOF) for variable heterogeneous catalysis. Different functional ligands can be reversibly inserted into and removed from proto-LIFM-28 individually or successively bring single binary catalytic sites specific reactions switch parent MOF multipurpose catalysts. Alcohol-oxidation, Knoevenagel-condensation, click, acetal, Baylis–Hillman are...
Photo-responsive organic phase change materials that can absorb filtered solar radiation in the visible range to store both latent heat and photon energy are demonstrated.
This review illustrates structural design principles for molecular solar thermal (MOST) energy storage materials based on photoswitches that operate in different phases or result a solid–liquid phase transition during their photo-isomerization.
The generally small Gibbs free energy difference between the Z and E isomers of hydrazone photoswitches has so far precluded their use in photon storing applications. Here, we report on a series cyclic acyclic hydrazones, which possess varied degrees ring strain and, hence, stability isomers. photoinduced isomerization concurrent phase transition hydrazones from crystalline to liquid result storage large quantity energy, comparable that azobenzene derivatives. We demonstrate macrocyclic...
Compact azobenzene derivatives with various functional groups are investigated to realize total photon and thermal energy storage over 300 J g −1 .
We address a critical challenge of recovering and recycling homogeneous organocatalysts by designing photoswitchable catalyst structures that display reversible solubility change in response to light. Initially insoluble catalysts are UV-switched soluble isomeric state, which catalyzes the reaction, then back-isomerizes state upon completion reaction be filtered recycled. The molecular design principles allow for drastic over 10 times between states, 87 % recovery light-induced...
We present here a group of Azo-BF2 photoswitches that store and release energy in response to visible light irradiation. Unmodified switches have planar structure with large π-conjugation system, which hinders E-Z isomerization when compacted state. To address this challenge, we modified the one or two aliphatic groups, altered intermolecular interactions arrangement photochromes solid The derivative substituents exhibited non-planar configuration provided particularly conformational...
A zirconium-based metal–organic framework (Zr-MOF) with a 2-fold catenated breathing structure is designed, whose contracts in similarly consecutive manner responsive to solvent (S), temperature (T), or pressure (P). As result, photoluminescence color tuning (PLCT) can be achieved progressively from blue yellow, via S, T, P pathways, leading multiple PL states memory nature. Based on this, 3D PLCT coordinate system established. Along each stimulation pathway, the starting, ending, and...
A three-dimensional functional metal–organic framework (LIFM-38) has been successfully synthesized with a fluorinated bicarboxylate ligand. LIFM-38 exhibits good stability and surface area of 803 m2 g–1. Owing to the synergistic effect different groups, cocrystallized amine active sites, suitable pore space, shows selective CO2 C2+ hydrocarbons adsorption over CH4 N2; in addition, C3 C2 hydrocarbons.
Abstract We transformed the hydrophilic metal–organic framework (MOF) UiO‐67 into hydrophobic UiO‐67‐R s (R=alkyl) by introducing alkyl chains organic linkers, which not only protected Zr 6 O 8 clusters to make MOF interspace superoleophilic, but also led a rough crystal surface beneficial for superhydrophobicity. The displayed high acid, base, and water stability, long offered better hydrophobicity. Good hydrophobicity/oleophilicity were possible with mixed‐ligand MOFs containing...
Through dynamic spacer installation, five fluorescent metal–organic frameworks (MOFs) have been constructed based on a proto-MOF LIFM-28 and multivariate fluorophores.
A trifluoromethyl functionalized linker and Cu-O chain composed MOF, LIFM-100, was used as "crystalline sponge" to determine eight hardly crystallized liquids' configurations based on its flexibility conformation, suitable pore size, electron-rich channel environment, low symmetric space group. The H bond interactions between host–guest guest–guest were well analyzed.
Through stepwise post-synthetic spacer insertion and click reactions, six Zr-MOFs with different types amounts of functional groups have been constructed based on proto-MOF PCN-700. Their gas adsorption capacities selectivities greatly improved finely tuned, demonstrating the combinatorial effect pore surface modification space partition.
We demonstrate an effective design strategy of photoswitchable phase change materials based on the bis-azobenzene scaffold. These compounds display a solid in E,E state and liquid Z,Z state, contrast to their monoazobenzene counterparts that exhibit less controlled transition behaviors are largely influenced by functional groups.
A flexible-robust copper(II) metal-organic framework, denoted as LIFM-100, has been successfully synthesized using a fluorinated linear dicarboxylate to link copper ions. LIFM-100 exhibits breathing effect, which can transform reversibly between large form (lp) and narrow (np) from single crystal crystal. In addition, shows good thermal chemical stability. By the introduction of trifluoromethyl functional groups uncoordinated carboxyl acids, features CO2/R22 adsorption/separation performance...
Abstract In multiphoton excited fluorescence (MPEF), high‐energy upconversion emission is obtained from low‐energy excitation by absorbance of two or more photons simultaneously. a pressure‐induced fluorochromic process, the energy switched outer pressure stimuli. Now, five metal–organic frameworks containing same ligand with simultaneous absorption and attributes were studied. One‐, two‐, three‐photon (1/2/3PEF) can be achieved in frameworks, which exhibit blue‐to‐yellow fluorochromism. The...
Cells contain intricate protein nanostructures, but replicating them outside of cells presents challenges. One such example is the vertical fibronectin pillars observed in embryos. Here, we demonstrate creation cell-free pillar mimics using nonequilibrium self-assembly. Our approach utilizes enzyme-responsive phosphopeptides that assemble into nanotubes. Enzyme action triggers shape changes peptide assemblies, driving growth nanopillars bundles. These bundles, with nanotubes serving as a...
无 机 材 料 学 报 第 35 卷 sorption ability of the oxides with maximum capacity at pH=5.Higher temperatures are favorable to progress, which is endothermic and spontaneous entropy increasing.The difference in thermodynamic parameters two alumina seemed unremarkable.
Abstract We address a critical challenge of recovering and recycling homogeneous organocatalysts by designing photoswitchable catalyst structures that display reversible solubility change in response to light. Initially insoluble catalysts are UV‐switched soluble isomeric state, which catalyzes the reaction, then back‐isomerizes state upon completion reaction be filtered recycled. The molecular design principles allow for drastic over 10 times between states, 87 % recovery light‐induced...