Polymorphic Forms of Valinomycin Investigated by NMR Crystallography

Dynamics of Water in Zeolite NaY(Br) Investigated by NMR

1. Introduction Zeolites are widely used in industry as molecular sieves, selective adsorbents, catalysts and ion exchangers (e.g. [1] and references therein). Therefore there is a great interest in studying the dynamics of guest molecules in such systems. Although vigorous research has been performed in the field, a complete understanding of the complex behaviour of guest molecules is still mi...

Fluorine dynamics in BaF 2 superionic conductors investigated by NMR

Conformational Flexibility in Nucleic Acids Investigated by NMR Relaxation

Vol. k, No. 3/4 All of the different steps in these processes involving nucleic acids, including control steps, require recognition of unique sites on the nucleic acids, which may be short-lived. The packaging of polynuc1eotides into compact forms in chromatin, ribosomes, and viruses involves folding of the nucleic acids. These and other observations indicate that the deformation of polynucieot...

NMR crystallography of α-poly(L-lactide).

A complementary approach that combines NMR measurements, analysis of X-ray and neutron powder diffraction data and advanced quantum mechanical calculations was employed to study the α-polymorph of L-polylactide. Such a strategy, which is known as NMR crystallography, to the best of our knowledge, is used here for the first time for the fine refinement of the crystal structure of a synthetic pol...

Liquid domains in vesicles investigated by NMR and fluorescence microscopy.

We use (2)H-NMR, (1)H-MAS NMR, and fluorescence microscopy to detect immiscibility in three particular phospholipid ratios mixed with 30% cholesterol: 2:1 DOPC/DPPC, 1:1 DOPC/DPPC, and 1:2 DOPC/DPPC. Large-scale (>>160 nm) phase separation into liquid-ordered (L(o)) and liquid-crystalline (L(alpha)) phases is observed by both NMR and fluorescence microscopy. By fitting superimposed (2)H-NMR spe...