Solution State NMR Techniques Applied to Solid State Samples: Characterization of Benzoic Acid Confined in MCM-41

2010 ◽  
Vol 114 (19) ◽  
pp. 8884-8891 ◽  
Author(s):  
Thierry Azais ◽  
Geoffrey Hartmeyer ◽  
Sandrine Quignard ◽  
Guillaume Laurent ◽  
Florence Babonneau
Keyword(s):  
Solid State ◽  
Benzoic Acid ◽  
Solution State ◽  
Nmr Techniques ◽  
Mcm 41

Suitability of Different 13C Solid-state NMR Techniques in the Characterization of Humic Acids

2002 ◽  
Vol 82 (4) ◽  
pp. 183-196 ◽  
Author(s):  
Jingdong Mao ◽  
Weiguo Hu ◽  
Guangwei Ding ◽  
Klaus Schmidt-Rohr ◽  
Geoffrey Davies ◽  
...  
Keyword(s):  
Solid State ◽  
Humic Acids ◽  
Solid State Nmr ◽  
Nmr Techniques

scholarly journals Solid-State NMR Techniques for the Structural Characterization of Cyclic Aggregates Based on Borane–Phosphane Frustrated Lewis Pairs

Molecules ◽  
2020 ◽  
Vol 25 (6) ◽  
pp. 1400 ◽  
Author(s):  
Robert Knitsch ◽  
Melanie Brinkkötter ◽  
Thomas Wiegand ◽  
Gerald Kehr ◽  
Gerhard Erker ◽  
...  
Keyword(s):  
Solid State ◽  
Structural Characterization ◽  
Solid State Nmr ◽  
Magic Angle ◽  
Frustrated Lewis Pairs ◽  
Wide Range ◽  
Nmr Techniques ◽  
Nmr Methods ◽  
Lewis Pairs

Modern solid-state NMR techniques offer a wide range of opportunities for the structural characterization of frustrated Lewis pairs (FLPs), their aggregates, and the products of cooperative addition reactions at their two Lewis centers. This information is extremely valuable for materials that elude structural characterization by X-ray diffraction because of their nanocrystalline or amorphous character, (pseudo-)polymorphism, or other types of disordering phenomena inherent in the solid state. Aside from simple chemical shift measurements using single-pulse or cross-polarization/magic-angle spinning NMR detection techniques, the availability of advanced multidimensional and double-resonance NMR methods greatly deepened the informational content of these experiments. In particular, methods quantifying the magnetic dipole–dipole interaction strengths and indirect spin–spin interactions prove useful for the measurement of intermolecular association, connectivity, assessment of FLP–ligand distributions, and the stereochemistry of adducts. The present review illustrates several important solid-state NMR methods with some insightful applications to open questions in FLP chemistry, with a particular focus on supramolecular associates.

Efficiency of dipolar and J-derived solid-state NMR techniques for a new pair of nuclei {31P,29Si}. Towards the characterization of Si–O–P mesoporous materials

2008 ◽  
Vol 11 (4-5) ◽  
pp. 387-397 ◽  
Author(s):  
Cristina Coelho ◽  
Thierry Azais ◽  
Christian Bonhomme ◽  
Laure Bonhomme-Coury ◽  
Cédric Boissière ◽  
...  
Keyword(s):  
Solid State ◽  
Mesoporous Materials ◽  
Solid State Nmr ◽  
Nmr Techniques

Structural Characterization of AgI–AgPO3–Ag2WO4 Superionic Conducting Glasses by Advanced Solid-State NMR Techniques

2017 ◽  
Vol 121 (25) ◽  
pp. 13823-13832 ◽  
Author(s):  
Mickaël Blais-Roberge ◽  
Silvia H. Santagneli ◽  
Sandra H. Messaddeq ◽  
Maxime Rioux ◽  
Yannick Ledemi ◽  
...  
Keyword(s):  
Solid State ◽  
Structural Characterization ◽  
Solid State Nmr ◽  
Nmr Techniques

Characterization of Covalent Linkages in Organically Functionalized MCM-41 Mesoporous Materials by Solid-State NMR and Theoretical Calculations

2007 ◽  
Vol 111 (15) ◽  
pp. 3877-3885 ◽  
Author(s):  
Jerzy W. Wiench ◽  
Yamini S. Avadhut ◽  
Niladri Maity ◽  
Sumit Bhaduri ◽  
Goutam Kumar Lahiri ◽  
...  
Keyword(s):  
Solid State ◽  
Mesoporous Materials ◽  
Solid State Nmr ◽  
Theoretical Calculations ◽  
Mcm 41

The use of multinuclear solid state NMR for the characterization of siloxane-oxide hybrid nanocomposites

2004 ◽  
Vol 847 ◽  
Author(s):  
Christel Gervais ◽  
Beatriz Julián ◽  
Eloisa Cordoncillo ◽  
Purificación Escribano ◽  
Mark E. Smith ◽  
...  
Keyword(s):  
Solid State ◽  
Solid State Nmr ◽  
Sol Gel ◽  
Hybrid Nanocomposites ◽  
Sol Gel Process ◽  
Hydrolysis And Condensation ◽  
Silicon Alkoxides ◽  
Different Types ◽  
Nmr Techniques

ABSTRACTThe objective of this paper is to review various solid state NMR techniques that have been, or can be used for the structural characterization of siloxane—oxide hybrid systems prepared by sol-gel process, and to discuss the type of information they provide, as well as their limitations. More precisely, this paper focuses on NMR techniques to probe and quantify the different types of oxo-bridges (M–O–M of oxide network, Si–O–Si of siloxane chains and Si–O–M siloxane–MxOy interface) in siloxane-oxide nanocomposites prepared through hydrolysis and condensation of organosilanes and M(OR)n alkoxides. In addition the influence of the functionality of the silicon alkoxides and the nature of the MxOy oxides on the extent of the Si-O-M interface will be examined.

Solution-State and Solid-State Structural Characterization of Complexes of a New Macrocyclic Ligand Containing the 1,5-Diazacyclooctane Subunit†

2003 ◽  
Vol 42 (3) ◽  
pp. 742-749 ◽  
Author(s):  
Chuanjiang Hu ◽  
Thoi D. Nguyen ◽  
Paul S. Wagenknecht ◽  
Lawrence C. Nathan
Keyword(s):  
Solid State ◽  
Structural Characterization ◽  
Macrocyclic Ligand ◽  
Solution State

Characterization of Elastomers and Rubber Chemicals by Modern NMR Techniques

1986 ◽  
Vol 59 (2) ◽  
pp. 328-346 ◽  
Author(s):  
R. A. Komoroski ◽  
J. P. Shockcor ◽  
E. C. Gregg ◽  
J. L. Savoca
Keyword(s):  
Solid State ◽  
High Resolution ◽  
Synthetic Polymers ◽  
Computing Systems ◽  
Standard Spectrum ◽  
High Resolution Nmr ◽  
Potential Applications ◽  
Nmr Techniques ◽  
High Degree

Abstract High resolution NMR has undergone a revolution in the last ten years or so. The ability to manipulate spin systems to a high degree in the pulse FT NMR experiment, coupled with advances in NMR computing systems, has led to the design of many multipulse and two-dimensional (2-D) NMR experiments which can provide considerably more information than a standard spectrum. In addition, experiments to obtain high resolution NMR spectra of solid materials have opened a whole area of chemistry to NMR. The new interpretive techniques for spectra obtained in solution have been applied to synthetic polymers or polymer chemicals only recently. However, the solid-state methods already have seen wide application in the polymer area. In this report, we describe some work from our laboratory employing some of these advanced methods in both solution and the solid state. This is not meant to serve as a detailed discussion of the techniques employed, but rather as an introduction to potential applications in the rubber and polymer industries.

Advanced Solid State NMR Techniques for the Characterization of Sol—Gel-Derived Materials

ChemInform ◽  
2007 ◽  
Vol 38 (49) ◽  
Author(s):  
Christian Bonhomme ◽  
Cristina Coelho ◽  
Niki Baccile ◽  
Christel Gervais ◽  
Thierry Azais ◽  
...  
Keyword(s):  
Solid State ◽  
Solid State Nmr ◽  
Sol Gel ◽  
Nmr Techniques
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