Revealing Structure Reactivity Relationships in Heterogenized Dirhodium Catalysts by Solid-State NMR Techniques
Revealing Structure Reactivity Relationships in Heterogenized Dirhodium Catalysts by Solid-State NMR Techniques
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通过固态核磁共振技术揭示多相二钠催化剂的结构反应关系
DOI:
10.1021/acs.jpcc.7b06807
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发表时间:
2017
影响因子:
3.7
通讯作者:
G. Buntkowsky
中科院分区:
文献类型:
--
作者:
P. Braga-Groszewicz;Q. Wen;A.S. Lilly Thankamony;B.Zhang;U. Kunz;G. Sauer;T. Gutmann;G. Buntkowsky
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 by13C CP MAS and15N 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.
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影响因子:
15
作者:
Alexandra Dos;Volkmar Schimming;Monique Chan Huot;H. Limbach
通讯作者:
H. Limbach
影响因子:
8.4
作者:
Liao WC;Ong TC;Gajan D;Bernada F;Sauvée C;Yulikov M;Pucino M;Schowner R;Schwarzwälder M;Buchmeiser MR;Jeschke G;Tordo P;Ouari O;Lesage A;Emsley L;Copéret C
通讯作者:
Copéret C
影响因子:
5.2
作者:
Nagashima, T;Davies, HML
通讯作者:
Davies, HML
影响因子:
2.8
作者:
Doyle, MP;Timmons, DJ;Blossey, EC
通讯作者:
Blossey, EC
影响因子:
7.3
作者:
H. M. Hultman;M. Lang;M. Nowotny;I. Arends;U. Hanefeld;R. Sheldon;T. Maschmeyer
通讯作者:
T. Maschmeyer