Mixed Halide Sodalite Solid Solution Systems. Hydrothermal Synthesis and Structural Characterization by Solid State NMR

2003 ◽  
Vol 107 (34) ◽  
pp. 8779-8788 ◽  
Author(s):  
Henning Trill ◽  
Hellmut Eckert ◽  
Vojislav I. Srdanov
Keyword(s):  
Solid Solution ◽  
Hydrothermal Synthesis ◽  
Solid State ◽  
Structural Characterization ◽  
Solid State Nmr

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.

Synthesis, structural characterization, electrical properties and chemical stability of a (ZrO2)0.97(Y2O3)0.03−x(MgO)2x solid solution

RSC Advances ◽  
2016 ◽  
Vol 6 (88) ◽  
pp. 84752-84759 ◽  
Author(s):  
Ewa Drożdż
Keyword(s):  
Solid Solution ◽  
Solid State ◽  
Electrical Properties ◽  
Chemical Stability ◽  
Structural Characterization ◽  
Tetragonal Phase

This paper is concerned with ternary solid state ZrO2–Y2O3–MgO where the zirconia tetragonal phase is stabilized by incorporation of yttrium and/or magnesium in the ZrO2 lattice.

Sign in / Sign up

Export Citation Format

Share Document