Revealing Structure Reactivity Relationships in Heterogenized Dirhodium Catalysts by Solid-State NMR Techniques
发布时间：2021-09-04
点击次数：
影响因子：4.12
发表刊物：Journal of Physical Chemistry C
摘要：Heterogenized dirhodium catalysts were prepared by anchoring the rhodium(II) trifluoroacetate dimer (Rh2(TFA)4) (TFA = trifluoroacetate) on the surface of the SBA-15 material bearing either amine or amine and carboxyl groups. After basic characterizations, the binding geometries of the catalysts were analyzed by 13C CP MAS and 15N CP MAS DNP NMR. 19F MAS NMR measurements were employed to quantify active catalyst sites in the heterogenized catalysts, which enables one to understand their catalytic performance in the cyclopropanation model between styrene and ethyl diazoacetate (EDA). The heterogeneous nature of the catalysts was confirmed by leaching and recyclability tests.
合写作者：Pedro B. Groszewicz, Qingbo Wen, Aany Sofia Lilly Thankamony, Bin Zhang; Ulrike Kunz, Grit Sauer, Yeping Xu
第一作者：Jiquan Liu
论文类型：期刊论文
通讯作者：Torsten Gutmann, Gerd Buntkowsky
文献类型：J
卷号：121
期号：32
页面范围：17409-17416
是否译文：否
发表时间：2017-08-17
收录刊物：SCI
发布期刊链接：https://pubs.acs.org/doi/abs/10.1021/acs.jpcc.7b06807