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- Title
Partial Phosphorization: A Strategy to Improve Some Performance(s) of Thiolated Metal Nanoclusters Without Notable Reduction of Stability.
- Authors
He, Zongbing; Yang, Ying; Zou, Jiafeng; You, Qing; Feng, Lei; Li, Man‐Bo; Wu, Zhikun
- Abstract
Thiolates endow metal nanoclusters with stability while sometimes inhibit the catalytic activity due to the strong M−S interaction (M: metal atom). To improve the catalytic activity and keep the stability to some extent, one strategy is the partial phosphorization of thiolated metal nanoclusters. This is demonstrated by successful partial phosphorization of Au23(SC6H11)16 and by revealing that the products Au22(SC6H11)14(PPh3)2 and Au22(SC6H11)12(PPh3)4, with varied degree of phosphorization, both show excellent activity in the photocatalytic oxidation of thioanisole without notable reduction of stability. Furthermore, Au22(SC6H11)12(PPh3)4 exhibits better photoluminescence performance than the mother nanocluster Au23(SC6H11)16, indicating that partial phosphorization can also improve some other performance(s) except for the catalytic performance. The intermediates Au22‐xCux(SC6H11)12(PPh3)4 (x=1, 2) in the transformation from Au23(SC6H11)16 (Au22(SC6H11)14(PPh3)2) to Au22(SC6H11)12(PPh3)4 were captured and identified by mass spectrometry and single crystal X‐ray diffraction, which throws light on the understanding of the non‐alloyed anti‐galvanic reaction.
- Subjects
CATALYTIC activity; METALS; PHOTOCATALYSTS; MASS spectrometry; SINGLE crystals; PHOTOCATALYTIC oxidation; PARTIAL oxidation
- Publication
Chemistry - A European Journal, 2022, Vol 28, Issue 25, p1
- ISSN
0947-6539
- Publication type
Article
- DOI
10.1002/chem.202200212