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The structure of Cs3Bi2I9 has been refined to R = 0.0165 on the basis of X-ray diffraction measurements at T = 290 K (STOE IPDS diffractometer; MoKalpha-radiation; 296 nonequivalent reflection with I > 2 sigma(I)). The absorption correction was accounted f ...
Cis-trans isomerization of proline-like oxazolidines and thiazolidines, denoted pseudo-prolines, is investigated spectrophotometrically with a chymotrypsin coupled assay and by H-1 NMR. A series of peptides carrying substituents of varying stereochemistry ...
The cross-aldolization of (-)-(1S,4R,5R,6R)-6-endo-chloro-5-exo-(phenylseleno)-7-oxabicyclo[2.2.1] heptan-2-one ((-)-25) and of(+)-(3aR,4aR,7aR,7bS)- ((+)-26) and(-)-(3aS,4aS,7aS,7bR)-3a,4a,7a,7b-tetrahydro-6,6-dimethyl[1,3]dioxolo [4,5]furo[2,3-d]isoxazol ...
The amyloid hypothesis suggests that the process of amyloid-beta protein (Abeta) fibrillogenesis is responsible for triggering a cascade of physiological events that contribute directly to the initiation and progression of Alzheimer's disease. Consequently ...
American Society for Biochemistry and Molecular Biology2002
The selective and reversible insertion of pseudo-proline (PsiPro) Systems in cyclosporin C (CsC) featuring different C(2) substituents at the oxazolidine ring and its impact on the conformational and biological properties is described. The presence of a 5- ...
The structural buildup during reticulation of thermoset systems containing reactive modifiers can strongly influence the final properties of such blends. This was studied by considering the rheological behavior during cure of an epoxy/amine thermoset syste ...
Using a refocused INADEQUATE NMR experiment we show that homonuclear carbon-carbon through-bond correlations can be obtained in disordered organic solids where the line widths greatly exceed the value of the scalar coupling. The feasibility of the experime ...
Every now and then, a new design of an interpolation kernel shows up in the literature. While interesting results have emerged, the traditional design methodology proves laborious and is riddled with very large systems of linear equations that must be solv ...
A new two-dimensional NMR carbon-proton chemical shift correlation experiment, the MAS-J-HMQC experiment, is proposed for natural abundance rotating solids. The magnetization transfer used to obtain the correlations is based on scaler heteronuclear J coupl ...
