Literature DB >> 25079352

NMR signatures of the active sites in Sn-β zeolite.

Patrick Wolf1, Maxence Valla, Aaron J Rossini, Aleix Comas-Vives, Francisco Núñez-Zarur, Bernard Malaman, Anne Lesage, Lyndon Emsley, Christophe Copéret, Ive Hermans.   

Abstract

Dynamic nuclear polarization surface enhanced NMR (DNP-SENS), Mössbauer spectroscopy, and computational chemistry were combined to obtain structural information on the active-site speciation in Sn-β zeolite. This approach unambiguously shows the presence of framework Sn(IV)-active sites in an octahedral environment, which probably correspond to so-called open and closed sites, respectively (namely, tin bound to three or four siloxy groups of the zeolite framework).
© 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Entities:  

Keywords:  DNP SENS; Mössbauer spectroscopy; active sites; solid-state NMR spectroscopy; zeolites

Year:  2014        PMID： 25079352     DOI： 10.1002/anie.201403905

Source DB:  PubMed          Journal:  Angew Chem Int Ed Engl        ISSN： 1433-7851            Impact factor:   15.336


  24 in total

1.  Exploring Applications of Covalent Organic Frameworks: Homogeneous Reticulation of Radicals for Dynamic Nuclear Polarization.

Authors:  Wei Cao; Wei David Wang; Hai-Sen Xu; Ivan V Sergeyev; Jochem Struppe; Xiaoling Wang; Frederic Mentink-Vigier; Zhehong Gan; Ming-Xing Xiao; Lu-Yao Wang; Guo-Peng Chen; San-Yuan Ding; Shi Bai; Wei Wang
Journal:  J Am Chem Soc       Date:  2018-05-25       Impact factor: 15.419

2.  B-MWW Zeolite: The Case Against Single-Site Catalysis.

Authors:  Natalie R Altvater; Rick W Dorn; Melissa C Cendejas; William P McDermott; Brijith Thomas; Aaron J Rossini; Ive Hermans
Journal:  Angew Chem Int Ed Engl       Date:  2020-02-28       Impact factor: 15.336

3.  Solvent-Activated Hafnium-Containing Zeolites Enable Selective and Continuous Glucose-Fructose Isomerisation.

Authors:  Luca Botti; Simon A Kondrat; Ricardo Navar; Daniele Padovan; Juan S Martinez-Espin; Sebastian Meier; Ceri Hammond
Journal:  Angew Chem Int Ed Engl       Date:  2020-08-31       Impact factor: 15.336

4.  Interrogating the Lewis Acidity of Metal Sites in Beta Zeolites with 15N Pyridine Adsorption Coupled with MAS NMR Spectroscopy.

Authors:  William R Gunther; Vladimir K Michaelis; Robert G Griffin; Yuriy Román-Leshkov
Journal:  J Phys Chem C Nanomater Interfaces       Date:  2016-09-21       Impact factor: 4.126

5.  High-Productivity Continuous Conversion of Glucose to α-Hydroxy Esters over Postsynthetic and Hydrothermal Sn-Beta Catalysts.

Authors:  Luca Botti; Ricardo Navar; Søren Tolborg; Juan S Martínez-Espín; Ceri Hammond
Journal:  ACS Sustain Chem Eng       Date:  2022-03-30       Impact factor: 8.198

6.  Efficient Conversion of Glucose to Methyl Lactate with Sn-USY: Retro-aldol Activity Promotion by Controlled Ion Exchange.

Authors:  Jose M Jimenez-Martin; Ana Orozco-Saumell; Héctor Hernando; María Linares; Rafael Mariscal; Manuel López Granados; Alicia García; Jose Iglesias
Journal:  ACS Sustain Chem Eng       Date:  2022-06-28       Impact factor: 9.224

7.  Dynamic Nuclear Polarization as an Enabling Technology for Solid State Nuclear Magnetic Resonance Spectroscopy.

Authors:  Adam N Smith; Joanna R Long
Journal:  Anal Chem       Date:  2015-12-17       Impact factor: 6.986

8.  Gd(iii) and Mn(ii) complexes for dynamic nuclear polarization: small molecular chelate polarizing agents and applications with site-directed spin labeling of proteins.

Authors:  Monu Kaushik; Thorsten Bahrenberg; Thach V Can; Marc A Caporini; Robert Silvers; Jörg Heiliger; Albert A Smith; Harald Schwalbe; Robert G Griffin; Björn Corzilius
Journal:  Phys Chem Chem Phys       Date:  2016-08-22       Impact factor: 3.676

9.  Influence of hidden halogen mobility on local structure of CsSn(Cl1-x Br x )3 mixed-halide perovskites by solid-state NMR.

Authors:  Abhoy Karmakar; Amit Bhattacharya; Diganta Sarkar; Guy M Bernard; Arthur Mar; Vladimir K Michaelis
Journal:  Chem Sci       Date:  2020-12-30       Impact factor: 9.825

10.  Atomic Description of the Interface between Silica and Alumina in Aluminosilicates through Dynamic Nuclear Polarization Surface-Enhanced NMR Spectroscopy and First-Principles Calculations.

Authors:  Maxence Valla; Aaron J Rossini; Maxime Caillot; Céline Chizallet; Pascal Raybaud; Mathieu Digne; Alexandra Chaumonnot; Anne Lesage; Lyndon Emsley; Jeroen A van Bokhoven; Christophe Copéret
Journal:  J Am Chem Soc       Date:  2015-08-17       Impact factor: 15.419
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