A5059463291- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Supramolecular Chemistry and Complexes
- Ammonia Synthesis and Nitrogen Reduction
- Catalytic C–H Functionalization Methods
- Porphyrin and Phthalocyanine Chemistry
- Crystallography and molecular interactions
- Electrocatalysts for Energy Conversion
- Molecular Sensors and Ion Detection
- Catalytic Cross-Coupling Reactions
- Oxidative Organic Chemistry Reactions
- Covalent Organic Framework Applications
- Nanomaterials for catalytic reactions
- Metal complexes synthesis and properties
- Metal-Organic Frameworks: Synthesis and Applications
- Asymmetric Hydrogenation and Catalysis
- Advanced NMR Techniques and Applications
- Perovskite Materials and Applications
- Magnetism in coordination complexes
- CO2 Reduction Techniques and Catalysts
University of Hong Kong
2021-2025
State Key Laboratory of Synthetic Chemistry
2022-2025
King Mongkut Memorial Hospital
2021
Efficient O2 reduction reaction (ORR) for selective H2O generation enables advanced fuel cell technology. Nonprecious metal catalysts are viable and attractive alternatives to state-of-the-art Pt-based materials that expensive. Cu complexes inspired by Cu-containing enzymes in nature yet reach their desired ORR catalytic performance. Here, the concept of mechanical interlocking is introduced ligand architecture enforce dynamic spatial restriction on coordination site. Interlocked catenane...
Abstract Aqueous soluble and stable Cu(I) molecular catalysts featuring a catenane ligand composed of two dicationic, mutually repelling but mechanically interlocked macrocycles are reported. The interlocking not only fine‐tunes the coordination sphere kinetically stabilizes against air oxidation disproportionation, also buries hydrophobic portions ligands prevents their dissociation which necessary for good water solubility sustained activity. These complexes can catalyze oxidative C−C...
A dual responsive [2]catenane switch with both on–off and intensity control of the intramolecular pyrene excimer emission is reported.
While Earth‐abundant metals are green and sustainable alternatives to precious for catalytic chemical conversions, the fast ligand exchange involving most of base renders their development into robust, reusable catalysts very challenging. Described in this work is a new type heterogeneous catalyst derived from 2D metal‐organic layer (MOL) grafted with catenane‐coordinated Cu(I) complexes. In addition good substrate accessibility, easy functionalization other favorable features due MOL...
Electrocatalytic nitrate reduction reaction (NO3RR) for the selective generation of ammonia (NH3) enables removal deleterious pollutants while simultaneously upcycling them into a value-added fertilizer. The development nonprecious metal-derived catalysts such as those featuring copper (Cu) earth-abundant alternatives state-of-the-art precious metal is urgent need yet suffering from activity-selectivity-durability trilemma. Rational design molecular Cu complexes with well-defined...
While Earth abundant metals are green and sustainable alternatives to precious for catalytic chemical conversions, the fast ligand exchange involving most of these renders their development into robust, reusable catalysts very challenging. Described in this work is a new type heterogeneous catalyst derived from 2D metal-organic layer (MOL) grafted with catenane-coordinated Cu(I) complexes. In addition good substrate accessibility, easy functionalization other favorable features due MOL...
Abstract Aqueous soluble and stable Cu(I) molecular catalysts featuring a catenane ligand composed of two dicationic, mutually repelling but mechanically interlocked macrocycles are reported. The interlocking not only fine‐tunes the coordination sphere kinetically stabilizes against air oxidation disproportionation, also buries hydrophobic portions ligands prevents their dissociation which necessary for good water solubility sustained activity. These complexes can catalyze oxidative C−C...
Upon coordination to catenane ligands derived from interlocked macrocycles of different size, gradual deviation the structure resulting 4-coordinate copper(I) complexes preferred tetrahedral geometry is resulted, and such structural distortion represents a new mechanism for modulating thermodynamic, kinetic, photophysical electrochemical properties transition metal via ligand mechanical interlocking. Results this study hence not only first demonstrate that extend catenand effect on can be...
Abstract A new demetallation method for Cu(I)‐bound catenanes that contain a strong binding bis(phenanthroline) cavity using the bidentate ethylenediamine is reported. Cu(I) extraction organic diamine mild, convenient and efficient, metal can be removed from kinetically stable catenane complexes in various solvents within 5 minutes, offering an alternative strategy to use of toxic cyanide competing coordination.
Aqueous soluble and stable Cu(I) molecular catalysts featuring a catenane ligand composed of two mechanically interlocked, cationic macrocycles are reported. The mechanical bond in the not only fine-tunes coordination sphere kinetically stabilizes against air oxidation disproportionation, but also prevents dissociation otherwise electrostatically repulsive which essential for good water solubility sustained reactivity catalyst. These complexes active oxidative C–C coupling indoles...
Electrocatalytic nitrate reduction reaction (NO3RR) for selective generation of ammonia (NH3) enables the removal deleterious pollutants while simultaneously upcycling them into value-added fertilizer. The development nonprecious metal-derived catalysts such as those featuring copper (Cu) earth-abundant alternatives state-of-the-art precious metal is urgent need yet suffering from activity-selectivity-durability trilemma. Rational design molecular Cu complexes with well-defined coordination...