Use of alkylarsonium directing agents for the synthesis and study of zeolites
[EN] Expanding the previously known family of -onium (ammonium, phosphonium, and sulfonium) organic structure-directing agents (OSDAs) for the synthesis of zeolite MFI, a new member, the arsonium cation, is used for the first time. The new group of tetraalkylarsonium cations has allowed the synthesis of the zeolite ZSM-5 with several different chemical compositions, opening a route for the synthesis of zeolites with a new series of OSDA. Moreover, the use of As replacing N in the OSDA allows the introduction of probe atoms that facilitate the study of these molecules by powder X-ray diffraction (PXRD), solid-state nuclear magnetic resonance (MAS NMR), and X-ray absorption spectroscopy (XAS)…
MOF-Stabilized Perfluorinated Palladium Cages Catalyze the Additive-Free Aerobic Oxidation of Aliphatic Alcohols to Acids
Extremely high electrophilic metal complexes, composed by a metal cation and very electron poor σ-donor ancillary ligands, are expected to be privileged catalysts for oxidation reactions in organic chemistry. However, their low lifetime prevents any use in catalysis. Here we show the synthesis of fluorinated pyridine-Pd coordinate cages within the channels of an anionic tridimensional metal-organic framework (MOF), and their use as efficient metal catalysts for the aerobic oxidation of aliphatic alcohols to carboxylic acids without any additive. Mechanistic studies strongly support that the MOF-stabilized coordination cage with perfluorinated ligands unleashes the full electrophilic potenti…
Synthesis of Densely Packaged, Ultrasmall Pt02Clusters within a Thioether-Functionalized MOF: Catalytic Activity in Industrial Reactions at Low Temperature
The gram-scale synthesis, stabilization, and characterization of well-defined ultrasmall subnanometric catalytic clusters on solids is a challenge. The chemical synthesis and X-ray snapshots of Pt02 clusters, homogenously distributed and densely packaged within the channels of a metal-organic framework, is presented. This hybrid material catalyzes efficiently, and even more importantly from an economic and environmental viewpoint, at low temperature (25 to 140 °C), energetically costly industrial reactions in the gas phase such as HCN production, CO2 methanation, and alkene hydrogenations. These results open the way for the design of precisely defined catalytically active ultrasmall metal c…
MOF-Triggered Synthesis of Subnanometer Ag02 Clusters and Fe3+ Single Atoms: Heterogenization Led to Efficient and Synergetic One-Pot Catalytic Reactions
Selective Introduction of Acid Sites in Different Confined Positions in ZSM-5 and Its Catalytic Implications
Controlling the location of acid sites in zeolites can have a great effect on catalysis. In this work we face the objective of directing the location of Al into the 10R channels of ZSM-5 by taking advantage of the structural preference of B to occupy certain positions at the channel intersections, as suggested by theoretical calculations. The synthesis of B-Al-ZSM-5 zeolites with variable Si/Al and Si/B ratios, followed by B removal in a postsynthesis treatment, produces ZSM-5 samples enriched in Al occupying positions at 10R channels. The location of the acid sites is determined on the basis of the product distribution of 1-hexene cracking as a test reaction. The higher selectivity to prop…
CCDC 1587822: Experimental Crystal Structure Determination
Related Article: Marta Mon, Miguel A. Rivero-Crespo, Jesffls Ferrando-Soria, Alejandro Vidal-Moya, Mercedes Boronat, Antonio Leyva-Pérez, Avelino Corma, Juan C. Hernandez-Garrido, Miguel Lopez-Haro, José J. Calvino, Giulio Ragazzon, Alberto Credi, Donatella Armentano, Emilio Pardo|2018|Angew.Chem.,Int.Ed.|57|6186|doi:10.1002/anie.201801957
CSD 1409698: Experimental Crystal Structure Determination
Related Article: Marta Mon, Miguel A. Rivero-Crespo, Jesffls Ferrando-Soria, Alejandro Vidal-Moya, Mercedes Boronat, Antonio Leyva-Pérez, Avelino Corma, Juan C. Hernandez-Garrido, Miguel Lopez-Haro, José J. Calvino, Giulio Ragazzon, Alberto Credi, Donatella Armentano, Emilio Pardo|2018|Angew.Chem.,Int.Ed.|57|6186|doi:10.1002/anie.201801957
CCDC 1892911: Experimental Crystal Structure Determination
Related Article: Rosa Adam, Marta Mon, Rossella Greco, Lucas H. G. Kalinke, Alejandro Vidal-Moya, Antonio Fernandez, Richard E. P. Winpenny, Antonio Dom��nech-Carb��, Antonio Leyva-P��rez, Donatella Armentano, Emilio Pardo, Jes��s Ferrando-Soria|2019|J.Am.Chem.Soc.|141|10350|doi:10.1021/jacs.9b03914
CCDC 1910863: Experimental Crystal Structure Determination
Related Article: Sara Sáez-Ferre, Christian W. Lopes, Jorge Simancas, Alejandro Vidal-Moya, Teresa Blasco, Giovanni Agostini, Guillermo Mínguez Espallargas, Jose L. Jordá, Fernando Rey, Pascual Oña-Burgos|2019|Chem.-Eur.J.|25|16390|doi:10.1002/chem.201904043
CCDC 1892914: Experimental Crystal Structure Determination
Related Article: Rosa Adam, Marta Mon, Rossella Greco, Lucas H. G. Kalinke, Alejandro Vidal-Moya, Antonio Fernandez, Richard E. P. Winpenny, Antonio Dom��nech-Carb��, Antonio Leyva-P��rez, Donatella Armentano, Emilio Pardo, Jes��s Ferrando-Soria|2019|J.Am.Chem.Soc.|141|10350|doi:10.1021/jacs.9b03914
CCDC 2107391: Experimental Crystal Structure Determination
Related Article: Rossella Greco, Estefania Tiburcio-Fortes, Antonio Fernandez, Carlo Marini, Alejandro Vidal-Moya, Judit Oliver-Meseguer, Donatella Armentano, Emilio Pardo, Jesús Ferrando-Soria, Antonio Leyva-Pérez|2022|Chem.-Eur.J.|28||doi:10.1002/chem.202103781
CCDC 2157534: Experimental Crystal Structure Determination
Related Article: Estefanía Tiburcio, Yongkun Zheng, Cristina Bilanin, Juan Carlos Hernández-Garrido, Alejandro Vidal-Moya, Judit Oliver-Meseguer, Nuria Martín, Marta Mon, Jesús Ferrando-Soria, Donatella Armentano, Antonio Leyva-Pérez, Emilio Pardo|2023|J.Am.Chem.Soc.|145|10342|doi:10.1021/jacs.3c02155
CCDC 1587821: Experimental Crystal Structure Determination
Related Article: Marta Mon, Miguel A. Rivero-Crespo, Jesffls Ferrando-Soria, Alejandro Vidal-Moya, Mercedes Boronat, Antonio Leyva-Pérez, Avelino Corma, Juan C. Hernandez-Garrido, Miguel Lopez-Haro, José J. Calvino, Giulio Ragazzon, Alberto Credi, Donatella Armentano, Emilio Pardo|2018|Angew.Chem.,Int.Ed.|57|6186|doi:10.1002/anie.201801957
CCDC 1892912: Experimental Crystal Structure Determination
Related Article: Rosa Adam, Marta Mon, Rossella Greco, Lucas H. G. Kalinke, Alejandro Vidal-Moya, Antonio Fernandez, Richard E. P. Winpenny, Antonio Dom��nech-Carb��, Antonio Leyva-P��rez, Donatella Armentano, Emilio Pardo, Jes��s Ferrando-Soria|2019|J.Am.Chem.Soc.|141|10350|doi:10.1021/jacs.9b03914