Structural characterization of non-oxide Chalcogenide Glasses using solid state NMR

1989 ◽  
Vol 1 (12) ◽  
pp. 423-432 ◽  
Author(s):  
Hellmut Eckert
Keyword(s):  
Solid State ◽  
Structural Characterization ◽  
Solid State Nmr ◽  
Chalcogenide Glasses

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.

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

Structural characterization of an anhydrous polymorph of paclitaxel by solid-state NMR

2007 ◽  
Vol 9 (46) ◽  
pp. 6083 ◽  
Author(s):  
Elizabeth M. Heider ◽  
James K. Harper ◽  
David M. Grant
Keyword(s):  
Solid State ◽  
Structural Characterization ◽  
Solid State Nmr
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