Total Structure of Bimetallic Core-Shell [Au42 Cd40 (SR)52 ]2- Nanocluster and Its Implications.
Li TangAlong MaCheng ZhangXuguang LiuRongchao JinShuxin WangPublished in: Angewandte Chemie (International ed. in English) (2021)
Bimetallic core-shell nanostructures hold great promise in elucidating the bimetallic synergism. However, it remains a challenge to construct atomically precise core-shell with high-valence active metals on the gold surface. In this work, we report the total structure of a [Au42 Cd40 (SR)52 ]2- core-shell nanocluster and multiple implications. Single crystal X-ray diffraction (SCXRD) reveals that the structure possesses a two-shelled Au6 @Au36 core and a closed cadmium shell of Cd40 , and the core-shell structure is then protected by 52 thiolate (-SR) ligands. The composition of the nanocluster is further confirmed by electrospray ionization mass spectrometry (ESI-MS). A catalytic test for styrene oxidation and a comparison with relevant nanoclusters reveal the surface effect on the catalytic activity and selectivity.
Keyphrases
- sensitive detection
- mass spectrometry
- reduced graphene oxide
- ms ms
- high resolution
- liquid chromatography
- nk cells
- magnetic resonance imaging
- gene expression
- heavy metals
- metal organic framework
- quantum dots
- gold nanoparticles
- single cell
- magnetic resonance
- risk assessment
- dna methylation
- human health
- electron transfer