A5040099580- biodegradable polymer synthesis and properties
- Carbon dioxide utilization in catalysis
- Ocular Surface and Contact Lens
- Advancements in Transdermal Drug Delivery
- Catalysis for Biomass Conversion
- Silk-based biomaterials and applications
- Asymmetric Hydrogenation and Catalysis
City University of Hong Kong
2015-2024
Kowloon Hospital
2015
High initial molecular turnover frequencies (up to 14 800 h<sup>−1</sup>) for coupling of CO<sub>2</sub> with epoxides in conjunction <sup>n</sup>Bu<sub>4</sub>NI, and excellent yields under mild conditions (1 bar <italic>p</italic><sub>CO2</sub>, 45 °C) have been achieved rigidly-linked bimetallic catalysts featuring cofacial Zn–salphen units.
A series of conformationally rigid (Zn-salphen)2 complexes with a planar bridging component (xanthene or dibenzofuran) are described. Conformational changes for these assemblies essentially limited to the axial rotation Zn-salphen moieties; however, such geometric constraints crucially permit subtle tuning intermetallic separation and geometry potentially enhance catalytic activity (and cooperative effects). The have been investigated as catalysts in conjunction nBu4NI coupling CO2 epoxides....