Rotational Isomerism of 3-Thiapentane

Rotational Isomerism in Bis-[/>-(3-Methyl-butyloxy)-phenyl]-thiourea

In case of Thiocarlidum (1) the thermoanalytical examination showed an endothermic transformation without loss of weight. This occured in samples recrystallized from cold polar solvents and the transformation proved to be non-reversible. The UV and IR spectra of the two samples differed characteristically and X-ray studies showed that the two modifications (in the following aand ßmodifications ...

Rotational isomerism in Bis-(p-(3-methyl-butyloxy)-phenyl)-thiourea.

In case of Thiocarlidum (1) the thermoanalytical examination showed an endothermic transformation without loss of weight. This occured in samples recrystallized from cold polar solvents and the transformation proved to be non-reversible. The UV and IR spectra of the two samples differed characteristically and X-ray studies showed that the two modifications (in the following aand ßmodifications ...

Conformational Isomerism in l , Substituted Derivatives of 3 , 3 . Dimethylbutane

Automatic formulation of falling multiple flexible-link robotic manipulators using 3×3 rotational matrices

In this paper, the effect of normal impact on the mathematical modeling of flexible multiple links is investigated. The response of such a system can be fully determined by two distinct solution procedures. Highly nonlinear differential equations are exploited to model the falling phase of the system prior to normal impact; and algebraic equations are used to model the normal collision of this ...

Study of molecular rotational isomerism using deuterium NMR in chiral oriented solvents.

Deuterium NMR in polypeptide chiral liquid crystals is used for the first time to investigate the internal rotational isomerism phenomenon, illustrated by the interconversion between conformers of 1-(2,6-dideutero-4-methylphenyl)naphthalene