N-Heterocyclic Carbene as a Surface Platform for Assembly of Homochiral Metal-Organic Framework Thin Films in Chiral Sensing
| Autor: | Li-Mei Chang, Ying-Feng Han, Yuan-Yuan An, Qiaohong Li, Zhi-Gang Gu, Jian Zhang |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Enantioselective synthesis 02 engineering and technology Quartz crystal microbalance 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences chemistry.chemical_compound Adsorption Enantiopure drug chemistry Chemical engineering General Materials Science Metal-organic framework Thin film Cyclic voltammetry 0210 nano-technology Carbene |
| Zdroj: | ACS applied materialsinterfaces. 12(34) |
| ISSN: | 1944-8252 |
| Popis: | N-heterocyclic carbenes (NHCs) have attracted increasing attention on surface assembly due to their strong metal binding property, but an NHC-modified metal surface as a new growth platform to assemble other functional materials is still a challenge. Here, we report the preparation and chiral sensing properties of homochiral metal-organic framework thin films on carboxyl-containing NHC self-assembled monolayer-modified gold (Au(NHC)) substrates. By using a liquid-phase epitaxial layer-by-layer method, enantiopure [Cu2(cam)2dabco]n thin films with preferred [110] crystal orientation have been successfully grown on Au(NHC) surfaces. The results of electrochemical cyclic voltammetry and quartz crystal microbalance uptakes of (R)- and (S)-1-phenylethanol show that the chiral porous thin film on the robust Au(NHC) surface has good enantiomeric electrochemical recognition and enantioselective adsorption. The present work is a new step to develop metal-NHCs as surface platforms for the preparation of multifunctional thin films for sensing applications. |
| Databáze: | OpenAIRE |
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